First, we have to solve the parentheses, by applying distributive property:
[tex]3(x)+3(2)=4(x)+4(1)[/tex][tex]3x+6=4x+4[/tex]Add and subtract alike terms:
[tex]6-4=4x-3x[/tex][tex]2=x[/tex][tex]x=2[/tex]what is 13 divide by 113.1 in long division
The value of 13 divided by 113.1 is 0.1149425.
How to calculate the division?It should be noted that the steps to calculate the division will be:
Step 1: Take the first digit of the dividend from the left. ...
Step 2: Then divide it by the divisor and write the answer on top as the quotient.
Step 3: Subtract the result from the digit and write the difference below.
Step 4: Bring down the next digit of the dividend
Therefore, 13 divided by 113.1 will be:
= 13 ÷ 113.1
= 0.1149425
In conclusion, the value is 0.1149425.
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What is an equation of the line parallel to the line on the graph that passes through (2,25)?
y=4x+17
ExplanationStep 1
2 equations of lines are parallel if the slope is the same, so
a) find the slope of the graphed line
the slope of a line can by calculated by using
[tex]\begin{gathered} slope=\frac{change\text{ in y }}{change\text{ in x}}=\frac{y_2-y_1}{x_2-x_1} \\ where \\ P1(x_1,y_1) \\ and \\ P2(x_2,y_2) \\ are\text{ 2 points from the line} \end{gathered}[/tex]so
pick up 2 points from the the line and let
[tex]\begin{gathered} P1(0,10) \\ P2(10,50) \end{gathered}[/tex]replace and evaluate
[tex]\begin{gathered} slope=\frac{change\text{\imaginaryI ny}}{change\text{\imaginaryI nx}}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ slope=\frac{50-10}{10-0}=\frac{40}{10}=4 \end{gathered}[/tex]hence, the slope of the line is 4
Step 2
now, using the slope and a point we can find the equation of the line
use the point-slope formula, it says
[tex]\begin{gathered} y-y_1=m(x-x_1) \\ where\text{ m is the slope} \\ (x_1,y_1)\text{ is a point from the line} \end{gathered}[/tex]so
a)let
[tex]\begin{gathered} P1(2,25) \\ sloipe=4 \end{gathered}[/tex]b) now ,replace and solve for y
[tex]\begin{gathered} y-y_{1}=m(x-x_{1}) \\ y-25=4(x-2) \\ y-25=4x-8 \\ add\text{ 25 in both sides} \\ y-25+25=4x-8+25 \\ y=4x+17 \end{gathered}[/tex]so, the answer is
y=4x+17
I
solve each system of equations below by graphing, please use my graphy = 2xy = -x + 3
Given:
y= 2x ; y=-x+3
Substitute the value of x as -2,-1,0,1,2
y=2x
[tex]\text{When x=-2, y=-4}[/tex][tex]\text{When x=-1, y=-}2[/tex][tex]\text{When x=0, y=}0[/tex][tex]\text{When x=1, y=}2[/tex][tex]\text{When x=2, y=}4[/tex]y= -x+3
[tex]\text{When x=-2, y=}5[/tex][tex]\text{When x=-1, y=}4[/tex][tex]\text{When x=0, y=}3[/tex][tex]\text{When x=1, y=}2[/tex][tex]\text{When x=2, y=}1[/tex]Therefore, the solution is (1,2) .
find (8.4x10^11)/(5.25x10^2)(8.0x10^3), expressed in a scientific notation
The simplified form of the expression, (8.4 x 10^11)/(5.25 x 10^2)(8.0 x 10^3), in scientific notation is 2.0 × 10⁵
Evaluating an expression in scientific notationFrom he question, we are to evaluate the given expression in scientific notation.
The given expression is
(8.4 x 10^11)/(5.25 x 10^2)(8.0 x 10^3)
First, we will write this expression properly
The expression written properly is
(8.4 x 10¹¹)/(5.25 x 10²)(8.0 x 10³)
Evaluating
(8.4 x 10¹¹)/(5.25 x 8.0)(10² x 10³)
(8.4 x 10¹¹)/(5.25 x 8.0)(10² ⁺ ³)
(8.4 x 10¹¹)/(42.0)(10⁵)
(8.4 x 10¹¹)/(42.0 × 10⁵)
(8.4/42.0) × (10¹¹ / 10⁵)
(0.20) × (10¹¹ ⁻ ⁵)
(0.20) × (10⁶)
= 0.20 × 10⁶
= 2.0 × 10⁵
Hence, the expression is 2.0 × 10⁵
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How many gallons are equivalent to 12 quarts?
Given:
The objective is to convert 12 quarts into gallons.
In general,
[tex]1\text{ gallon=4}quart[/tex]12 quarts can be converted to gallons by,
[tex]\begin{gathered} x=\frac{12}{4} \\ x=3\text{ quarts} \end{gathered}[/tex]Hence, 12 quarts is 3 gallons.
The hypotenuse of a right triangle is twice the length of one of its legs. The length of the other leg is 7 feet. Find tje length of the three sides of the triangle. Answer exactly or round to 2 decimal places. The legs of the triangle are 7_ feet and the hypotenuse is _ feet
Taking l as the length of one of the legs and using the pythagorean theorem we have that:
[tex](2l)^2=l^2+7^2[/tex]Solve the equation for l:
[tex]\begin{gathered} 4l^2=l^2+49 \\ 4l^2-l^2=49 \\ 3l^2=49 \\ l^2=\frac{49}{3} \\ l=\sqrt[]{\frac{49}{3}} \\ l=\frac{7}{\sqrt[]{3}}=\frac{7\sqrt[]{3}}{3} \end{gathered}[/tex]It means that the hypotenuse is:
[tex]\frac{14\sqrt[]{3}}{3}[/tex]And the leg is:
[tex]\frac{7\sqrt[]{3}}{3}[/tex]Solve the inequality and graph your answerx + 19 < 16
Solution
For this case we have this inequality:
x+19 <16
We can subtract 16 in both sides and we got:
x +19-19 < 16-19
x < -3
For the second part we have:
[tex]\frac{x}{5}\ge-2[/tex]We can multiply both sides by 5 and we got.
[tex]x\ge-10[/tex]Timothy mows his neighbor lawn for $6.50 per week. He continues to do this for 37 weeks until winter. In winter he shovels snow off their lawn for $10.25 per week for 25 weeks. How much money did Timothy earn in total?
ANSWER
$496.75
EXPLANATION
Timothy mows his neighbor's lawn for $6.50 per week for 37 weeks until winter.
This means that the amount of money he made mowing is the product of the amount per weeks and the number of weeks.
That is:
[tex]\begin{gathered} 6.50\cdot37 \\ =\text{ \$}240.50 \end{gathered}[/tex]He shovels the snow for $10.25 per week for 25 weeks.
The amount of money he made shoveling is therefore:
[tex]\begin{gathered} 10.25\cdot25 \\ =\text{ \$256.25} \end{gathered}[/tex]The total amount of money that he made in total is the sum of money he made mowing and shoveling:gg
[tex]\begin{gathered} 240.50+256.25 \\ =\text{ \$496.75} \end{gathered}[/tex]That is the answer.
how do I solve for x and y when I have no information for these triangles?
y is equal to 140 because they are congruent
the complement of y is 40 because 180 - 140 = 40
x = 180 - 40 - 40 = 180 - 80 = 100
1. y and 140 are congruent angles, so y = 140
2. a = 180 - 140 = 40 because it is complementary with y
3. b = a = 40 because the sides of the triangle are equal, so the angles are equal
4. c = 180 - a - b = 180 - 40 - 40 = 100 because the sum of the inner angles of a triangle measure 180
5. x = c = 100 because they are opposed by the vertex
Answer:
y = 140
x = 100
When the clock first starts counting down time, there are more than 300 seconds before the start of the game. Write an inequality statement that best describes t, the time in seconds, when the clock first starts counting down time.
"When the clock first starts counting down time, there are more than 300 seconds before the start of the game", that means the variable t we will use to represent when the clock first starts counting down time is greater than 300, so we can represent this sentence with the following inequality:
[tex]t>300[/tex]So the inequality statement that best describes t is t > 300.
This parabola opens to the left. P. O A. True O B. False
Answer:
True.
Explanation:
We take the analogy from the graph of y = ax^2
When y = x^2, the parabola opens upward (towards the positive y-axis). However, when the parabola is y = -x^2, it opens downward (towards the negative y-axis).
In a similar way, when we have x = ay^2, the parabola opens towards the positive x-axis ( towards the right). However, if we have x = -ay^2, then the parabola opens towards the negative x-axis ( towards the left).
Therefore, by comparison, x = - 1/8 y^2, opens to the left, and the correct option to choose is 'True'.
What system of inequalities would you use to solve the problem below?Suppose you have a job teaching swimming lessons and get paid $6 an hour. You also have a job as a cashier and get paid $8 an hour. If you cannot work more than 15 hours a week, what are the number of hours you can work at each job and still make at least $100?A.s + c 1006s + 8c 15B.s + c 156s + 8c 100C.s + c < 156s + 8c > 100D.s + c 156s + 8c 100
Answer:
s + c <= 15
6s + 8c >= 100
Explanation:
You are dealt one card from a standard 52-card deck. Find the probability of being dealt a heart and a spade.The probability of being dealt a heart and a spade is __.(Type an integer or a simplified fraction.)
Okay, here we have this:
what is the equation of the line? O y=3/2x O y=2/3x O y=3x O y=2x
Explanation:
We would apply the slope formula:
slope = change in y/change in x
change in y = 4 - 0 = 4
change in x = 6 - 0 = 6
Also note on the graph, the change in y is represented by y. And the change in x is represented by x
[tex]\begin{gathered} slope=\frac{4}{6} \\ \text{slope =}\frac{y}{x} \end{gathered}[/tex]Equating both:
[tex]\begin{gathered} \frac{y}{x}=\frac{4}{6} \\ \frac{y}{x}=\frac{2}{3} \end{gathered}[/tex]Multiply both sides by x:
[tex]\begin{gathered} \frac{y}{x}\times x=\frac{2}{3}\text{ }\times\text{ x} \\ y\text{ = }\frac{2x}{3}\text{ (option B)} \end{gathered}[/tex]Circle the value that correctly converts 6.5 cm in inches.26 in0.26 in2.6 in260 in
2.6 inches (third option)
Explanation:Given:
To convert 6.5cm to another unit
To find:
The value of 6.5 cm inches
To determine the value in inches, we need to do a conversion from cm to inches
1 inch = 2.54 cm
let 6.5 cm in inches = y
6.5cm = y
2.54cm = 1 inch
crossmultiply:
[tex]\begin{gathered} 6.5(1)\text{ = y\lparen2.54\rparen} \\ 6.5\text{ = 2.54y} \\ divide\text{ both sides by 2.54y:} \\ \frac{6.5}{2.54}\text{ = y} \\ y\text{ = 2.559} \end{gathered}[/tex]To the nearest tenth, y = 2.6
Hence, the value of 6.5cm in inches is 2.6 inches (third option)
x-6y>57x+2y>4Is (10,-2) a solution of the system?
To check if (10, -2) is a solution to the system, we have to replace x with "10" and y with "-2" and see if the inequalities hold true.
If both the inequalities hold true, then definitely (10, -2) is a solution!
Let's check the first inequality:
[tex]\begin{gathered} x-6y\stackrel{?}{>}5 \\ 10-6(-2)\stackrel{?}{>}5 \\ 10+12\stackrel{?}{>}5 \\ 22>5 \\ \text{True} \end{gathered}[/tex]Now, let's check the second inequality:
[tex]\begin{gathered} 7x+2y\stackrel{?}{>}4 \\ 7(10)+2(-2)\stackrel{?}{>}4 \\ 70-4\stackrel{?}{>}4 \\ 66>4 \\ \text{True} \end{gathered}[/tex]
Find the slope of the line passing through thepoints (-5,4) and (7,8).
We have two points and we have to calculate the slope of the line pasing through this points.
We can calculate the slope as the ratio of the difference between the y-coordinates and the difference between the x-coordinates.
This can be written as:
[tex]m=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1}=\frac{8-4}{7-(-5)}=\frac{4}{7+5}=\frac{4}{12}=\frac{1}{3}[/tex]The slope of the line is 1/3.
Write 1.75 % as decimal AND simplified fraction. ANS. As decimal __________. As simplified fraction. ________.
The given percentage is 1.75%.
To find the decimal expression of this percentage, we just have to divide it by 100. It's important to know that when we divide a number by 100, we just have to move the decimal point two spots to the left, as follows
[tex]\frac{1.75}{100}=0.0175[/tex]Therefore, as a decimal is 0.0175.
Now, to find the simplified fraction, we divide the number by 10000, as follows
[tex]\frac{175}{10000}[/tex]The reason for dividing by 10000 is that we need to have a whole number in the numerator, so the extra two zeros allow us to get rid of the two of the number. Now, we simplify the fraction dividing each part by 5
[tex]\frac{175\colon5}{10000\colon5}=\frac{35}{2000}=\frac{7}{400}[/tex]Once we get the simplest fraction, we can finish.
Therefore, as a simplified fraction is 7/400.
D.) what is the probability of selling 25 cheesecakes ?E.) what is the probability of selling at most 10 cheesecakes ?F.) give the expected number of cheesecakes sold on any given day using the discrete probability distribution
D)
To find the probability of selling 25 cheesecakes:
It is impossible to find the probability of selling 25 cheesecakes.
So,
P(x=25)=0
The probability of selling 25 cheesecakes is 0.
E)
To find the probability of selling at most 10 cheesecakes:
That is,
[tex]\begin{gathered} P(x\leq10)=P(x=0)+P(x=5)+P(x=10) \\ =0.1+0.23+0.04 \\ =0.37 \end{gathered}[/tex]Therefore, the probability of selling at most 10 cheesecakes is 0.37.
F)
To find the expected number of cheesecakes sold on any given day using the discrete probability distribution:
[tex]\begin{gathered} \sum ^5_{i\mathop=1}x_ip_i=x_1p_1+x_2p_2+x_3p_3+x_4p_4+x_5p_5 \\ =0(0.1)+5(0.23)+10(0.04)+15(0.46)+20(0.17)_{}_{}_{} \\ =0+1.15+0.4+6.9+3.4 \\ =11.85 \end{gathered}[/tex]Hence, the expected number of cheesecakes sold on any given day using the discrete probability distribution is 11.85.
good morning I really need help with numbers 3 and 4
a) 6 x 18 = 108
b) 8 x 74 = 592
Explanations:According to the distributive property:
a (b + c) = ab + ac
Let us do each of the exercises 3 and 4 using the distributive property:
3) 6 x 18
Step 1: Write 18 as 10 + 8
18 = 10 + 8
6 x 18 = 6 ( 10 + 8)
Step 2: Apply the distributive property
6 ( 10 + 8) = (6 x 10) + (6x8)
Step 3: Multiply each of the terms
60 + 48
Step 4: Add the two together
108
Therefore, 6 x 18 = 108
4) 8 x 74
Step 1: Write 74 as 70 + 4
74 = 70 + 4
8 x 74 = 8 ( 70 + 4)
Step 2: Apply the distributive property
8 ( 70 + 4) = (8 x 70) + (8x4)
Step 3: Multiply each of the terms
560 + 32
Step 4: Add the two together
592
Therefore, 8 x 74 = 592
what is 3 1/6 + 5 2/3
The given expression is
[tex]3\frac{1}{6}+5\frac{2}{3}[/tex]First, we transform each mixed number into a fraction
[tex]\begin{gathered} 3\frac{1}{6}=\frac{3\cdot6+1}{6}=\frac{18+1}{6}=\frac{19}{6} \\ 5\frac{2}{3}=\frac{5\cdot3+2}{3}=\frac{15+2}{3}=\frac{17}{3} \end{gathered}[/tex]We use these fractions to make the sum
[tex]\frac{19}{6}+\frac{17}{3}[/tex]Now, we use the following property
[tex]\frac{a}{b}+\frac{c}{d}=\frac{a\cdot d+b\cdot c}{b\cdot d}[/tex][tex]\frac{19\cdot3+17\cdot6}{6\cdot3}=\frac{57+102}{16}=\frac{159}{16}[/tex]Hence, the result is 159/16.Write an algebraic expression for each phrase.1.the product of r and seven7x3. two more than the product of y and four2. the sum of 8 and p4. the quotient of k and ten
2) The symbol used to repesent sum is '+'. Thus, the algebraic expression for the the sum of 8 and p is
8 + p
8) Suppose y varies inversely as x, if y = 7 when x = 6then find y when x = -21.
Suppose y varies inversely as x, if y = 7 when x = 6
then find y when x = -21.
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form
y*x=k
where
k is the constant of proportionality
step 1
Find the value of k
we have
y=7, x=6
k=7*6
k=42
the equation is
y*x=42
step 2
For x=-21
substitute
y*(-21)=42
y=42/(-21)
y=-2create a trinomial with a constant of 4 and -1 coefficient of the x term. fast help!!!
A trinomial with a constant of 4 and -1 coefficient of the x term is x² - x + 4 = 0.
What is defined as the trinomial?A trinomial is a three-term algebraic expression. An algebraic expression is made up of one or more terms' variables and constants. A perfect square trinomial is an algebraic expression formed by squaring a binomial formation. It has the formula ax² + bx + c. Here, a, b, as well as c are all real numbers, and a ≠ 0.For the given question;
Trinomial have-
constant of 4 and -1 coefficient of the x termThe general equation of the trinomial is-
ax² + bx + c = 0
Where, a and b are the coefficients and c is the constant.
Thus,
Put b = -1 and c = 4
ax² - x + 4 = 0
Now, value of a can be any number but not zero.
Thus, suitable value of a is 1.
The trinomial becomes,
x² - x + 4 = 0
Thus, a trinomial with a constant of 4 and -1 coefficient of the x term is x² - x + 4 = 0.
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Identify the domain and range for the given relation. Indicate whether the relation is a function or not andexplain
Given :
Domain is:
[tex]D\colon\mleft\lbrace0,-1,1\mright\rbrace[/tex]Range is:
[tex]R\colon\mleft\lbrace0,1,2\mright\rbrace[/tex]Here is one output for one input.
Express the function graphed on the axes below as a piecewise function.108642-10-8-6-4-22416810-4-6-8-10
Answer:
[tex]f(x)=\begin{cases}2x+3,x\le-4 \\ 2x-12,x>2\end{cases}[/tex]Explanation:
The equation of the line to the left is 2x + 3 and we see that it only exists for x <= -4.
The equation of the line to the right is 2x - 12 and we see that it only exists for x > 2.
Therefore, we can write
f(x) = 2x + 3 for x < = -4
f(x) = 2x -12 for x > 2
Or in the notation of piecewise function, the above can be written consicely as
[tex]f(x)=\begin{cases}2x+3,x\le-4 \\ 2x-12,x>2\end{cases}[/tex]
which is our answer!
What are the terms in the expression 5b + 6m + 8?O 5,6,8O 11 b + mO 5b, 6m, 8
By definition a term is a single mathematical expression; it may be a number, a variable, or a multiplication of them.
Then, the terms in the expression given are 5b, 6m and 8.
Therefore the answer is the last choice.
graph the line represented by the equation 2x + 3y = 8
Given the equation
2x + 3y = 8
The given equation represents a line
It is required at minimum two points to graph the line
So, assume two value for x and find y using the given equation
When x = -2
2 * -2 + 3y = 8
-4 + 3y = 8
3y = 8 + 4
3y = 12
y = 12/3 = 4
so, the point (-2 , 4) lie on the line
And assume x = 4
so, 2 * 4 + 3y = 8
8 + 3y = 8
3y = 0
y = 0
So, the point (4 , 0) lie on the line
so, the line is passing through the points (-2 , 4) and ( 4 , 0)
By connecting the points and extending the line we will get the graph of 2x + 3y = 8
See the following image;
Select all of the following that are statistical questions A. What is the price of the orangeB. What is the weight of an orange C. What is the average price of an orange D. What is the average weight of an orange grown in the U.S.A E. What percent of oranges grocery stores were grown in the USAThere is more than one answerPlease help no wrong answers please
Take into account that a statistical question refers to situation which data set are involved. Then, you can consider as statistical questions:
What is the average price of an orange
average takes into account the price of more than one orange.
What is the average weight of an orange grown in U.S.A
What percent of oranges grocery stores were grown in the USA
Sasha has $850 todeposit into twoaccounts.Sasha will deposit $450at First Oak Bank.She will deposit the restinto River Point Bank.Sasha will not make additionaldeposits or withdrawals.How much more money will bein her account at First Oak thanat River Point after 2 years?
Given
Sasha has $850 to deposit into two accounts.
Sasha will deposit $450 at First Oak Bank.
She will deposit the rest into River Point Bank.
Sasha will not make additional deposits or withdrawals.
To find how much more money will be in her account at First Oak than at River Point after 2 years.
Now,
It is given that,
In the first Oak bank the rate of interest is 6%.
Then, the amount in her account after 2 years is,
[tex]\begin{gathered} A=P+\frac{Pnr}{100} \\ A=450+\frac{450\times2\times6}{100} \\ A=450+54 \\ A=454 \end{gathered}[/tex]Hence, the amount in the First Oak bank is $454.
In the River point bank the rate of interest is 2% compounded annually.
Then, the amount in her account after 2 years is,
[tex]\begin{gathered} A=P(1+\frac{r}{100})^t \\ A=P(1+\frac{2}{100})^2 \end{gathered}[/tex]Since Sasha will deposit $450 at First Oak Bank and she will deposit the rest into River Point Bank.
Then, the amount deosited in the River point bank is,
[tex]\begin{gathered} P=850-450 \\ =400 \end{gathered}[/tex]Therefore,
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