Answer:
Natalie should measure the volume of the fish tank in cubic units.
Explanation:
The measure of the area is in square units and the measure of the volume is in cubic units.
The area gives you the measure of a plane surface and the volume gives you how much space a solid occupies
So, the measurement that will best help Natalie is the volume of the fish tank in cubic units.
.The 9th-grade students are sellingI chocolate bars for a fundraiser.Each student is encouraged tosell at least 12 chocolate bars.Pam sells 3 bars on Monday and4 bars on Tuesday. Write andsolve an inequality to find the remainingpossible number of bars Pam cansell to reach the goal.
Answer:
The possible number of bars Pam can sell to reach the goal must be at least 5 bars.
Explanation;
Let the remaining number of bars Pam can sell to reach the goal be "x"
If Pam sells 3 bars on Monday and 4 bars on Tuesday, the total number of bars sold will be 3 + 4 = 7bars
Also if each student is encouraged to sell at least 12 chocolate bars, the required inequality expression to solve will be:
[tex]\begin{gathered} 4+3+x\ge12 \\ 7+x\ge12 \\ x\ge12-7 \\ x\ge5 \\ \end{gathered}[/tex]This shows that the possible number of bars Pam can sell to reach the goal must be at least 5 bars.
if I can...give me any word problems that have to deal with multiply and dividing rational numbers
Determine whether the given numbers are rational or irrational.
(a) 1.75 (b) 0.01 (c) 0.5 (d) 0.09 (d) √3
So, rational can be any fraction number, but it can not be in under root form.
Thus the only option (d) is irrational number. all other are rational number.
[tex]\begin{gathered} \text{The product of rational number }\frac{4}{7}\text{ and }\frac{3}{5\text{ }}is? \\ \Rightarrow\frac{4}{7}\times\frac{3}{5} \\ \Rightarrow\frac{12}{35} \end{gathered}[/tex]2. Ashley purchased a new television for$2400 and a surround sound for $980.The sales tax is 7%. Find the totalamount of money that Ashley will payfor her two items including tax.
Ashley has to pay $2400 + $980 = $3380 for both items.
We need to calculate the 7% of this amount to find how much she has to pay in taxes.
[tex]3380\cdot\frac{7}{100}=236.6[/tex]Finally, the total amount she has to pay is $3380 + $236.6 = $3616.6
Points W, X, and Y are collinear. WY = 25 andthe ratio of WX to XY is 2:3. Find WX.wY
WX is 10
Explanation goes as follows:
WY = 25 from the question given
adding the ratios together, we will have 2+3= 5
WX : XY = 2: 3
To find WX, we will simply say;
WX = 2/5 multiplied by 25
WX = 2/5 x 25
WX = 50/5
WX=10
Like-wise to find WY
we will simply say;
WY = 3/5 multiplied by 25
WY = 3/5 x 25
WY = 75/5
WY =15
WZ = 32, YZ = 6, and X is the midpoint of WY. Find WX.
We are given the length of two segments:
WZ = 32
YZ = 6
and we are told that x is the midpoint of the segment WY
We are asked to find the length of the segment WX
Notice that the total length of the segment WZ is 32. from the point Y to the point Z we have 6 units. therefore, between W and Y there is 32 - 6 = 26 units.
SInce X is the midpoint of the distance between W and Y, then it has to cut the segment WY (26 units long) in two equal parts, each of length 13 units (half of 26).
Therefore, WX must be of length 13 units.
12. A local poll finds that 0.35 of all citizens approve of the mayor's policies. What fraction of citizens approve? Write the answer in lowest terms. O 3/5 035/100 O 7/20 O 35/50
Explanation:
Writing 0.35 as a fraction we have:
[tex]\frac{35}{100}[/tex]And we can simplify dividing both numerator and denominator by 5:
[tex]\frac{\frac{35}{5}}{\frac{100}{5}}=\frac{7}{20}[/tex]Answer:
7/20
Billy is comparing gasoline prices at two different gas stationsAt the first gas station the equation c = 2.80g gives the relationship between g the number of gallons of gasoline and c the total cost in dollarsAt the second gas station the cost of 2.5 gallons of gasoline is $8.30 and a cost of $5 of gasoline is $16.60how much per gallon would Billy save by going to the less expensive gas station
Answer
Billy would save $0.52 by going to the less expensive gas station (which is the first gas station).
Explanation
At the first station,
c = 2.80g
c = cost of gasoline
g = number of gallons of gasoline
The cost of 1 gallon of gasoline at this station will be obtained by putting in g = 1
c = 2.80g
g = 1 gallon
c = 2.80 (1)
c = 2.80 dollars per gallon
Cost per gallon = 2.80 dollars
At the second station,
2.5 gallons = 8.30 dollars
5 gallons = 16.60 dollars
The cost of 1 gallon at this station will be
1 gallon = (8.30/2.5) = (16.60/5) = 3.32 dollars
Cost per gallon = 3.32 dollars
We can see that gasoline is cheaper at the first station and the difference in price per gallon (which is the amount that will be saved by going to the less expensive gas station) is
3.32 - 2.80 = 0.52 dollars
Hope this Helps!!!
Suppose that f is an even function whose domain is the set of all real numbers. Then which of the following can we claim to be true?
If f is an even function, then f can't have an inverse, because even functions don't have inverses. Therefore the correct answer is A.
Sharon Nguyen has $25,000 to invest and believes that she can earn 8% compounded semiannually. Find the amount if she invests for 10 years
Solution:
Given:
[tex]\begin{gathered} P=\text{ \$25,000} \\ r=8\text{ \%}=\frac{8}{100}=0.08 \\ t=10\text{years} \\ n=\text{twice a year(semiannually),}n=2 \end{gathered}[/tex]
To get the amount, we use the compound interest formula;
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
Substituting the given values into the formula,
[tex]\begin{gathered} A=P(1+\frac{r}{n})^{nt} \\ A=25000(1+\frac{0.08}{2})^{2\times10} \\ A=25000(1+0.04)^{20} \\ A=25000(1.04)^{20} \\ A=25000\times1.04^{20} \\ A=\text{ \$54,778.08} \end{gathered}[/tex]
Therefore, the amount after 10 years is $54,778.08
Which scenario has more arrangements?:2:• 5 letter arrangements using the letters from the word CHAMPION.• 4 letter arrangements using the letters from the word ABRUTPING.. The total number of ways the word EDMONTON can be arranged.Prepare your work on paper, take an image and post in the answer box provided.s:ParagraphVB1UAVLato (Recom19pxVEa5 с:
This is a simple question to solve. Let's first calculate all the arrangements for the first case to understand the logic:
As we can see above, once we have 8 letters, and we need to calculate the numbers of arrangements with 5 letters, for the first letter we have 8 possible letters, for the second letters we have 7 possible letters once one letter was used for the first one. For the third letter we have 6 possible letters, for the fourth, 5 possible letters and for the fifth, 4 possible letters. So, we just multiply 8*7*6*5*4 = 6720 possible arrangements.
For the second situation we can follow the same logic:
And finally for the third situation we have:
As we can see above, the third scenario has more arrangements.
The equation d=16t^2 gives the distance in feet that a golf ball falls in t seconds.How many seconds will it take the gol to drop to the ground from a height of 4 feet?64 feet?
We are given the following function of distance in terms of time:
[tex]d=16t^2[/tex]Where:
[tex]\begin{gathered} d=\text{ distance} \\ t=\text{ time} \end{gathered}[/tex]We are asked to determine the time when the distance is 4ft. To do that we will solve for "t". First, we will divide both sides by 16:
[tex]\frac{d}{16}=t^2[/tex]Now, we take the square root to both sides:
[tex]\sqrt{\frac{d}{16}}=t[/tex]Simplifying we get:
[tex]\frac{1}{4}\sqrt{d}=t[/tex]Now, we substitute the value of the distance:
[tex]\frac{1}{4}\sqrt{4}=t[/tex]Solving the operations:
[tex]\begin{gathered} \frac{1}{2}=t \\ \\ 0.5=t \end{gathered}[/tex]Therefore, the time is 0.5
The same procedure is used to determine the time for 64 feet.
you Owens 15 books before Christmas,but after Christmas you now own 21 books. is this a decrease or increase explain.find the percent of change
Let's begin by listing out the given information:
Before Christmas: 15 books
After Christmas: 21 books
This is an increase
The percentage increase is given by % increase = Increase ÷ Original Number × 100:
[tex]\begin{gathered} \text{\%}increase=Increase\div OriginalNumber\times100\text{\%} \\ \text{\%}increase=\frac{21-15}{15}\times100\text{\%} \\ \text{\%}increase=\frac{6}{15}\times100\text{\%}=40\text{\%} \\ \text{\%}increase=40\text{\%} \end{gathered}[/tex]Solve using the elimination method:4x + y + 5z = -40-3x + 2y + 4z = 10x - y - 2z = -2
Let's take
4x + y + 5z = -40 (Eq1)
-3x + 2y + 4z = 10 (Eq2)
x - y - 2z = -2 (Eq3)
Now create a new system using elimination
-2* (4x + y + 5z = -40) (Eq1)
1* (-3x + 2y + 4z = 10) (Eq2)
----------------------------------
-11x - 6z = 90 (Eq4)
Use elimination again
1* (-3x + 2y + 4z = 10) (Eq2)
2* (x - y - 2z = -2) (Eq3)
---------------------------------------
-x = 6 (Eq5)
From Equation 5 we have that
x = -6
Replace the value of x in Equation 4 and clear z
-11(-6) - 6z = 90
-6z = 90 - 66
-6z=24
z = 24/-6
z = -4
Replace x and z in equation 3 and clear y
-6 - y - 2*(-4) = -2
-y + 8= -2 +6
-y = 4 - 8
-y= -4
y = 4
Find the missing the side length leave the answer as radical form. Question 3.
In order to calculate the value of x, we can use the cosine relation of the angle 60°.
The cosine is equal to the length of the adjacent leg to the angle over the length of the hypotenuse.
So we have:
[tex]\begin{gathered} \cos(60°)=\frac{2}{x}\\ \\ \frac{1}{2}=\frac{2}{x}\\ \\ x=4 \end{gathered}[/tex]Now, to calculate the value of y, we can use the tangent relation of the angle 60°.
The tangent is equal to the length of the opposite leg to the angle over the length of the adjacent leg to the angle.
So we have:
[tex]\begin{gathered} \tan(60°)=\frac{y}{2}\\ \\ \sqrt{3}=\frac{y}{2}\\ \\ y=2\sqrt{3} \end{gathered}[/tex]Tilusorativ dhernatcs 8. Here is a graph of the equation 3x-2y = 12. 2 Select all coordinate pairs that represent a solution to the equation. O A. (2,-3) B. (4, 0) C. (5,-1) D. (0, -6) E. (2, 3)
Let's evaluate every pair:
(2,-3):
[tex]3(2)-2(-3)=6+6=12=12[/tex](2,-3) represent a solution
-----------------------------------------------------------------------------------------------------
(4,0):
[tex]3(4)-2(0)=12-0=12=12[/tex](4,0) represent a solution
---------------------------------------------------------------------------------------------------------------
(5,-1):
[tex]3(5)-2(-1)=15+2=17\ne12[/tex](5,-1) Don't represent a solution
-----------------------------------------------------------------------------------------------------------
(0,-6):
[tex]3(0)-2(-6)=0+12=12=12[/tex](0,-6) Represent a solution
--------------------------------------------------------------------------------------------------
(2,3):
[tex]3(2)-2(3)=6-6=0\ne12[/tex](2,3) Don't represent a solution
how do i findFind the domain of f ∘ g in the equation
First, we need to find the composite function of f ∘ g.
We need to write the function f(x) in terms of g(x).
Then:
[tex]\begin{gathered} (fog)(x)=\frac{6}{g(x)+7}=\frac{6}{x+5+7} \\ =\frac{6}{x+12} \end{gathered}[/tex]Now, to find the domain we need to look at the x values that the function can take.
The function is a rational function, then the domain is given using the denominator because it can be equal to zero.
x+12 = 0
x=-12
Therefore, the domain is the interval (-∞.-12)U(-12,∞)
State what additional information is required in order to know that the triangles are congruentfor the reason given.11) SSS12) SAS
11) SSS
The Side Side Side (SSS) theorem states that if three given sides of one triangle are equal to the three sides of another triangle, both triangles are congruent.
Since we are given two equal sides (VC = DC) and one common side(CE), to prove this SSS theorem, the additional information required is to indicate the third side of both triangles are equal (VE = DE).
We have the figure below:
Where:
VC = DC
CE = CE
The additional information required is:
VE = DE
ANSWER:
VE = DE
1. Which of the following pairs of figures are congruenta which are not ? How do you know Be sure to use the following vocabulary words congruent .
Congruent and similar goes by:
Two figures are congruent if they have the same shape and size.
and,
When two figures are similar, the ratios of the lengths of their corresponding sides are equal.
Now, check the images.
First figure (two houses) are congruent.
Second figures (two triangles) are not congruent.
1 + z/3 + 2w. Which part of the expression is a product of two factors? Describe it's part e form quotient of two factors? Describe its parts.
2w is the part of two factors.
The part of the expression is a product of two factors.
The expression we have is:
[tex]1 + \frac{z}{3}+2w[/tex]
Let's analyze the parts of this expression.
The first term of the expression is a constant term: 1.
1 is not a product of two factors, so this is not the answer.
The second term of the expression is: z/3.
This part of the expression is a division or quotient between z and 3. Thus, since it is a division and not a product, this is also not the answer we are looking for.
The third term of the expression is: 2w
In this case, the term 2w is a product between "2" and "w". Thus, 2w is a product of two factors. The parts of this product are 2 and which when multiplied result in 2w.
Hence the answer is 2w is the part of two factors.
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Content attributionQUESTION 5.1 POINTTranslate and solve: 6 greater than b is greater than 84.Give your answer in interval notation.Provide your answer below:
6 greater than b is
[tex]=b+6[/tex]6 greater than b is greater than 84. is represented as
[tex]b+6>84[/tex]Step :Subtract 6 from both sides
[tex]\begin{gathered} b+6>84 \\ b+6-6>84-6 \\ b>78 \\ \end{gathered}[/tex]Therefore,
[tex]\begin{bmatrix}\mathrm{Solution\colon}\: & \: b>78\: \\ \: \mathrm{Interval\: Notation\colon} & \: \mleft(78,\: \infty\: \mright)\end{bmatrix}[/tex]Hence,
The interval notation is (78,∞)
g(n) = 2n^2 - 4; Find g(-2)
ANSWER
g(-2) = 4
EXPLANATION
We are given the function g(n) as:
[tex]g(n)=2n^2\text{ - 4}[/tex]To find g(-2), we have to replace n with -2 in g(n) and simplify it.
[tex]\begin{gathered} g(-2)=2(-2)^2\text{ - 4 = 2}\cdot4\text{ - 4} \\ g(-2)\text{ = 8 - 4} \\ g(-2)\text{ = 4} \end{gathered}[/tex]That is the value of g(-2)
the line with the slope of 1/5 and passing through the point D(2,2)
Answer:
Y = 1/5 x + 8/5
Explanation:
The equation of a line in slope intercept form is
[tex]y=mx+b[/tex]we are told that the slope of the equation is 1/5; therefore,
[tex]y=\frac{1}{5}x+b[/tex]Furthermore, we are also told that the line passes through (2,2), meaning it should satisfy the condition when y = 2, x = 2
Putting in x =2 and y = 2 in the above equation gives
[tex]2=\frac{1}{5}(2)+b[/tex][tex]2=\frac{2}{5}+b[/tex]subtracting 2/5 from both sides gives
[tex]2-\frac{2}{5}=b[/tex][tex]b=\frac{8}{5}=1.6[/tex]Hence the equation of the line is
[tex]y=\frac{1}{5}x+\frac{8}{5}[/tex]The graph of the equation is given below.
Determine if the measures create aight triangle.13m5m12m
use the pythagorean theorem to see if the measurements create a right trinangle.
remember the addition of the squared shorter sides must be equal to the largest side squared
[tex]a^2+b^2=c^2[/tex][tex]5^2+12^2=13^2[/tex][tex]\begin{gathered} 5^2+12^2=169 \\ 13^2=169 \\ \\ 169=169 \end{gathered}[/tex]During 7 1/2 months of hibernation, a black bear experienced a weight loss of 64.4 lbs. on average what was the bears weight change per month. Round to the nearest tenth.
Hibernation time: 7 1/2 months = 15/2 months
Weight loss: 64.4 lbs
We can calculate the average weight change per month using the equation:
average_weight_loss = weight_loss / time
We know that:
weight_loss = 64.4 lbs
time = 15/2 months = 7.5 months
Then, using the equation above:
average_weight_loss = 64.4 lbs / 7.5 months
average_weight_loss = 8.5867 lbs/month
To the nearest tenth, the average monthly weight loss of the black bear was 8.6 lbs/month.
After how many cakes will their savings be the same for both? b) What will their savings be?
Let "s" represent the amount saved in the bank account and "c" the number of cakes sold.
Jane (J)
Has a starting balance of $70 and she sells "c" cakes for $25 each, you can symbolize the earnings of the cake sales as 25c
You can express the total amount saved using the following expression
[tex]s_J=70+25c[/tex]Miriam (M)
Has a starting balance of $100 and shells cakes for $20 each, you can symbolize the total earnings for her cakes sales as 20c
So the total amount saved can be expressed as:
[tex]s_M=100+20c[/tex]a) To determine how many cakes they must sell so that their savings will be the same, you have to equal both expressions and calculate the value of c:
[tex]\begin{gathered} s_J=s_M \\ 70+25c=100+20c \end{gathered}[/tex]To calculate for c, the first step is to pass the term containing the variable to the left by applying the opposite operation to both sides of the equal sign:
[tex]\begin{gathered} 70+25c-20c=100+20c-20c \\ 70+5c=100 \end{gathered}[/tex]Repeat the process to pass 70 to the right side of the expression
[tex]\begin{gathered} 70-70+5c=100-70 \\ 5c=30 \end{gathered}[/tex]And divide both sides by 5 to reach the value of c
[tex]\begin{gathered} \frac{5c}{5}=\frac{30}{5} \\ c=6 \end{gathered}[/tex]After selling 6 cakes both Jae and Miriam will have saved the same amount.
b)
To determine what will their savings be, you have to replace either one of the expressions with c=6 and calculate for s:
[tex]\begin{gathered} s_J=70+25c \\ s_j=70+25\cdot6 \\ s_j=220 \end{gathered}[/tex]If you solve it using Miriam's expression the result must be the same:
[tex]\begin{gathered} s_M=100+20c \\ s_M=100+20\cdot6 \\ s_M=220 \end{gathered}[/tex]As you see using either equation we arrived to the same result, after selling 6 cakes their total saves will be $220
how do I find which coordinate pairs represent vertices of P'Q'R'S after these two transformations?
We have two transformations.
We will apply them to a generic point P=(x,y), and then we can replace them with any coordinates as inputs.
First transformation: translating 6 units to the right.
This changes the x-coordinate by adding 6 units (x=0 becames x'=6, for example), so we can write:
[tex]P=(x,y)\longrightarrow P^{\prime}=(x+6,y)[/tex]Second transformation: rotate 90 degrees clockwise.
This changes both x and y coordinates. We can look at a drawing to understand the transformation.
The x-coordinate becomes the y-coordinate, and the y-coordinate becomes the negative x-coordinate.
We can then write:
[tex]P^{\prime}=(x+6,y)\longrightarrow P^{\prime}^{\prime}=(y,-x-6)[/tex]So now we know that the final image of a point (x,y) after the two transformations is (y,-x-6).
Then, we can list all four points:
[tex]P=(-3,7)\longrightarrow P^{\prime}^{\prime}=(7,-(-3)-6)=(7,-3)[/tex][tex]Q=(4,12)\longrightarrow Q^{\prime}^{\prime}=(12,-4-6)=(12,-10)[/tex][tex]R=(4,-2)\longrightarrow R^{\prime}^{\prime}=(-2,-4-6)=(-2,-10)[/tex][tex]S=(-3,-7)\longrightarrow S^{\prime}^{\prime}=(-7,-(-3)+6)=(-7,-3)[/tex]Final coordinates: (7,-3), (12,-10), (-2,-10) and (-7,-3).
In how many ways can a committee of four Democrats and five Republicans be formed from a group of seven Democrats and eleven Republicans?
The percentage of majority and minority party members on each committee is also decided by party leaders.
How many Republicans and Democrats are there in each committee?The percentage of majority and minority party members on each committee is also decided by party leaders. Each standing committee (apart from Standards) is required under the Democratic Caucus Rules to have at least three Democrats for every two Republicans.The percentages of Democrats and Republicans in the committees generally correspond to their representation in the House and the Senate overall.In the House, there are now 20 standing committees and 1 permanent select committee. Please visit the Clerk of the House website for the most recent committee information.Individual Senators are typically only allowed to serve on two Class A committees and one Class B committee.To learn more about standing committees refer to:
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The percentage of majority and minority party members on each committee is also decided by party leaders.
How many Republicans and Democrats are there in each committee?The percentage of majority and minority party members on each committee is also decided by party leaders. Each standing committee (apart from Standards) is required under the Democratic Caucus Rules to have at least three Democrats for every two Republicans.
The percentages of Democrats and Republicans in the committees generally correspond to their representation in the House and the Senate overall. In the House, there are now 20 standing committees and 1 permanent select committee.
Please visit the Clerk of the House website for the most recent committee information. Individual Senators are typically only allowed to serve on two Class A committees and one Class B committee.
To learn more about standing committees refer to:
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an open-top box is to be constructed from a sheet of tin that measures 22 inches by 14 inches by cutting out squares from each corner. let V(x) denote the volume of the resulting box. step 1 of 2: write V(x) as a product of linear factorsstep 2 of 2: among the values of x for which V(x)=0, which are physically possible?
It is given that an open-top box is to be constructed from a sheet of tin that measures 22 inches by 14 inches by cutting out squares from each corner
Let x be the measure of the side of the square.
Length of the resulting box =22-2x
Width of the resulting box=14-2x
Height of the resulting box=x
The volume of the box is
[tex]V=\text{length }\times width\times height[/tex]Substitute values, we get
[tex]V(x)=(22-2x)(14-2x)x[/tex][tex]=(22-2x)(14x-2x^2)[/tex][tex]=22\mleft(14x-2x^2\mright)-2x\mleft(14x-2x^2\mright)[/tex][tex]=22\times14x-22\times2x^2-2x\times14x-(-2x)2x^2[/tex][tex]=308x-44x^2-28x^2+4x^3[/tex][tex]V(x)=4x^3-72x^2+308x[/tex]Putting V(x)=0, we get
[tex]4x^3-72x^2+308x=0[/tex][tex]4x(x^2-18x+77)=0[/tex][tex]4x=0,(x^2-18x+77)=0[/tex]Here x is not zero
[tex]x^2-18x+77=0[/tex][tex]x^2-11x-7x+77=0[/tex][tex]x(x^{}-11)-7(x-11)=0[/tex][tex](x^{}-11)(x-7)=0[/tex][tex](x^{}-11)=0\text{ or }\mleft(x-7\mright)=0[/tex][tex]x^{}=11\text{ or }x=7[/tex]The height of the box is 11 or 7
If the height is 11 inches, substitute x=11 in the length equation, we get
[tex]\text{length =22=2x=22-2}\times11=22-22=0[/tex]we get a length is 0, so it is not possible to make the box.
Setting x=7, the height of the box is 7 inches.
[tex]\text{Length =22-2x=22-2}\times7=22-14=8inches[/tex][tex]\text{width =14-2}\times7=14-14=0[/tex]we get a width is 0, so it is not possible to make the box.
Hence among the values of x for which V(x)=0 is not physically possible.
How is seeing the parts of a partitioned number line the same as seeing the parts of a partitioned rectangle? How is it different?
Partitioning a number line:
If you have a number line, you can partition into fractions. This is done by dividing the number lines into equal portions and summing up the portions to give the total part that you need.
For example, to partition a number line into 3/4 portion of a number line, you can partition the number line into 4 portions of 1/4 each and take 3 portions out of the four to get 3/4.
The same strategy is used for a rectangle:
To divide a rectangle into two portions of 3/4 and 1/4, you can use similar method as above:
Difference:The difference is that in a number line, you only have the length and you can partition only across the length
In a rectangle you can partition both the length and the width of the shape
Select the correct choices to complete the sentence.
AIR SHOW At a flight demonstration, two planes are flying in a synchronized pattern. The planes start their demonstration at (−20,−15) and (5, −15) . Select the transformation that represents the planes’ flight pattern to their final destinations at (−30, 20) and (0, 20) .
Options:
A. (-2, 7)
B. (-10, 35)
C. (-12, 48)
Answer:
The coorect option is letter C