Recall that the equation of a line that passes through two points is given by the following formula:
[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1).[/tex]Notice that the above formula gives us the equation of the line in point-slope form. Substituting the given values in the above formula, we get:
[tex]y-(-1)=\frac{-1-4}{2-8}(x-2).[/tex]Simplifying the above result, we get:
[tex]y+1=\frac{5}{6}(x-2).[/tex]Now, taking the above equation to its standard form, we get:
[tex]\begin{gathered} 6y+6=5(x-2), \\ 6y+6=5x-10, \\ 6y-5x=-10-6, \\ -5x+6y=-16. \end{gathered}[/tex]Answer: [tex]y+1=\frac{5}{6}(x-2);-5x+6y=-16.[/tex]Frank reads at least 24 pages but not more than 36 pages of a book. He reads 12 pages per hour. The number of hours Frank reads p pages is modeled by a function. t(p)=p12 What is the practical range of the function?
all real numbers from 2 to 3, inclusive
all real numbers
all real numbers from 24 to 36, inclusive
all multiples of 12 between 24 and 36, inclusive
Answer:
as practical range of function is 2 to 3 so we have
12(2) = 24
12(3) = 36
i think this is it
Step-by-step explanation:
i don't really know how to explain it but:
12 x 2 = 24and
12 x 3 = 36on/8cc2ae7c-5cc0-4693-ab64-cce744de5774/b9c41130-96e8-4a04-a4cc-dbc9dab72adfNorfleet CasenReview -BookmarkThe art club has a goal to raise at least $500 by selling paintings to the student body for $15 each. They have already spent $70 buyingpaint. Which inequality could be used to find the number of paintings the art club needs to sell to reach their goal?
The art club has a goal to raise at least $500 by selling paintings to the student body for $15 each. They have already spent $70 buying
paint. Which inequality could be used to find the number of paintings the art club needs to sell to reach their goal?
we have that
Let
x -----> the number of paintings
so
the inequality that represent this situation is given by
[tex]15x-70\ge500[/tex]solve for x
[tex]undefined[/tex]In the diagram, AABD is equiangular. What additional information is needed to provethat ABAE = AABC?АBEDсZBAE ZABC and ZABEZBACZABEZBAC and ZAEB ZBCAZAEB ZBCA and DE DCZBAE ZABC and DE DC
In my opinion is the first choice the correct answer, because it is proving that 2 angles are equal so the third angle will also have the same measure.
An apartment building is planning on replacing refrigerators in 42 of its units. If the refrigerators cost $501 each, estimate the total cost by rounding both numbers to the nearest 10
Total Cost = No of Units x Unit cost of refrigerators
Total Cost = 42 x $ 501 = $ 21, 042
Rounding off to the nearest tens,
We have to round down 42 (in $ 21, 042) to 40
Therefore, the total cost will be $ 21, 040
Answer: $21,040
263747_+'('-+'++'+58"-
report student again
Find the length of the segment JK in the parallelogram below.
Answer:
58
Step-by-step explanation:
3x-14=58
+14 +14
3x=72
x=24
solved that now we'll input the factor
3(24)-14
72-14
"58" is your answer
Franco is evenly dividing 3 and 1/3 pounds of flour into five containers and would like to know how many pounds of flour will be in each container. Franco sets up the following division problem to find his answer 3 and 1/3 divided by 5Convert Franco’s division problem into a product involving two fractions and find out how many pounds of flour each container will hold
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
3 and 1/3 pounds = flour
5 = containers
Step 02:
We must apply the algebraic rules to find the solution.
[tex]\begin{gathered} \text{flour:} \\ 3\text{ + }\frac{1}{3}\text{ = }\frac{9\text{ + 1}}{3}\text{ = }\frac{10}{3} \\ \end{gathered}[/tex][tex]\begin{gathered} \frac{10}{3}\cdot\text{ }\frac{1}{5}\text{ = }\frac{10}{15}\text{ = }\frac{2}{3\text{ }}\text{ (division =}==>\text{ product)} \\ \\ \end{gathered}[/tex]The answer is:
2/3 pounds of flour
what is the slope of the line
I really want to go to bed I've been staying up all night pls help
Answer:
The slope is -2
Step-by-step explanation:
Use the rise÷run formula to find the slope of any linear equation
In this case, -2÷1 = -2
Therefore, the slope is -2
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The flu virus
is 8.0 x 10-6
cm in diameter. The
diameter of the plush
version is 1,250,000
times larger than the
microbe. What's the
diameter of the plush flu virus?
Diameter of the plush flu virus = 10 cm.
What is multiplication?Multiplication is the repeated addition of a number up to given number of times.
Given,
Diameter of the flu virus = 8.0 x [tex]10^{-6}[/tex]
Diameter of the plush flu virus = 1,250,000 × (Diameter of the flu virus)
Diameter of the plush flu virus = 1,250,000 × (8.0 x [tex]10^{-6}[/tex])
= 10 cm
Hence, Diameter of the plush flu virus = 10 cm.
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based only on the information given in the diagram which congruence theorems or postulates could be given as reasons why △ABC=△DEF
The triangle congruence theorem that give reason for △ABC ≅ △DEF is HL.
What is a congruent triangle?Two triangles are said to be congruent if pairs of their corresponding sides and their corresponding angles are equal.
Triangles are congruent when they have exactly the same three sides and exactly the same three angles.
Triangle ABC is congruent to triangle DEF as follows:
The triangles are congruent by HL because it has same length of hypotenuse and the same length for one of the other two legs.
The HL(Hypotenuse and leg) rules applies only to right angle triangles.
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help meeeeeeeeeeeeeee pleaseeeeeee
Answer: Width = 4.7 meters, Length = 6.7 meters
Step-by-step explanation:
Let the width be [tex]w[/tex]. It follows that the length is [tex]w+2[/tex].
[tex]w(w+2)=32\\\\w^2+ 2w-32=0\\\\w=\frac{-2 \pm \sqrt{2^2 -4(1)(-32)}}{2(1)}\\\\w \approx 4.7 \text{ } (w > 0)\\\\\implies w+2 \approx 6.7[/tex]
how to check 9x - 11 = -38 ( x equals 7/2)
Answer:
Multiply 9 and 7/2 to check the answer.
help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer: 2.5, 5.3
Step-by-step explanation:
[tex]-16t^2 +126t=217\\ \\ 16t^2 -126t+217=0\\\\t=\frac{-(-126) \pm \sqrt{(-126)^2 -4(16)(217)}}{2(16)}\\\\t \approx 2.5, 5.3[/tex]
how many pieces are there in 215 dozen elementary school
Answer:2580
Step-by-step explanation:215*12=2580
What is the equation of the line below
The given graph is of the equation y = x - 2
How to represent an equation in a graph?Select x-values and enter them into the equation to graph a function. You will obtain a y-value once those values have been entered into the equation. The coordinates of a single point are made up of the x and y values.
Step 1 is to determine the variables.
Step 2: Establish the range of the variable
Determine the graph's scale in step three.
Step 4 is to give each axis a number, a label, and a title.
5. Select the data points and plot them on the graph.
6. Create the graph.
After understanding the "how" of drawing a graph you will surely understand how to decide which equation's graph it is.
The given graph is of the equation
y = x - 2
because as in the graph
the slope cuts the points x = 4 and y = 2
and when we substitute this value in the above mentioned equation we get
2 = 4 - 2
which satisfies the condition .
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PLS HELP ASAP(100 POINTS)
A linear function is shown on the graph.
A linear function beginning with open circle at negative 3 comma negative 5 and ending with an open circle at 3 comma 7.
What is the domain of the function?
{y | −5 ≤ y ≤ 7}
{y | −5 < y < 7}
{x | −3 ≤ x ≤ 3}
{x | −3 < x < 3}
Answer:
{x | −3 ≤ x ≤ 3
Answer:
{x | −3 ≤ x ≤ 3}
Step-by-step explanation:
pretty sure its right
Solve the right triangle ABC for all missing parts. Express angles in decimal degreesA=23°23', c= 47.25 mRound to the nearest hundredth please
The first step is to convert angle A = 23°23' to degrees. Recall, the interpretation of angle A is 23 degree 23 minutes. Also,
1 degree = 60 minutes
Let x = 23 minutes. Thus, we have these equations
1 = 60
x = 23
By crossmultiplying,
60x = 23
x = 23/60 = 0.3833
Thus,
angle A = 23 degrees + 0.3833 degrees = 23.3833 degrees
The triangle is shown below
Taking angle A as the reference angle,
hypotenuse = 42.75
opposite side = a
adjacent side = b
To find a, we would apply the sine trigonometric ratio which is expressed as
Sin# = opposite side/hypotenuse
Sin 23.3833 = a/47.25
By crossmultiplying,
a = 47.25Sin 23.3833
a = 18.75
To find b, we would apply the cosine trigonometric ratio which is expressed as
Cos# = adjacent side/hypotenuse
Cos 23.3833 = b/47.25
By crossmultiplying,
b = 47.25Cos 23.3833
b = 43.37
The given triangle is a right triangle. This means that one of its angles is 90 degrees. Thus,
angle C = 90 degrees
The sum of the angles in a traingle is 180 degrees. This means that
angle A + angle B + angle C = 180
23.3833 + angle B + 90 = 180
angle B + 113.3833 = 180
angle B = 180 - 113.3833
angle B = 66.62 degrees
1. Tanisha drove 120 miles on 5 gallons of gas. How many miles can she drive if she has 12 gallons of gas?
Given m(x): { (9 0), (8, -8), (-4, 8), (0, -4) , (-8, 3) }. Find m(-8)
8
0
4
3
Answer:
B.C.
Step-by-step explanation:
In a high school, 20% of the students own a supercharged Greased Lightning 409 car while the other 80% own a feeble Milquetoast car. Last year the students owning a 409 received 60 speeding tickets while the students owning a Milquetoast received 10 speeding tickets. That means that a student owning a 409 was k times more likely to receive a ticket than a student owning a Milquetoast. What is the value of k?
The value of k is 6
In this question, we have been given In a high school, 20% of the students own a supercharged Greased Lightning 409 car while the other 80% own a feeble Milquetoast car. Last year the students owning a 409 received 60 speeding tickets while the students owning a Milquetoast received 10 speeding tickets.
A student owning a 409 was k times more likely to receive a ticket than a student owning a Milquetoast.
We write this statement in mathematical expression form as,
60 = 10 * k
We need to find the value of k
Consider above equation,
60 = 10 * k
k = 60/10
k = 6
Therefore, the value of k is 6
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Which BEST describes the system of equations? 3x = 5 - 4y 6x + 8y = 7 A) Consistent B) Inconsistent Consistent and Dependent D) Consistent and Independent
The given set of equations is,
[tex]\begin{gathered} 3x=5-4y \\ \Rightarrow3x+4y-5=0\ldots\text{.}(1) \\ 6x+8y=7 \\ \Rightarrow6x+8y-7=0\ldots\ldots(2) \end{gathered}[/tex]The ratio of coefficient can be determined as,
[tex]\begin{gathered} \frac{a_1}{a_2}=\frac{3}{6}=\frac{1}{2}_{} \\ \frac{b_1}{b_2}=\frac{4}{8}=\frac{1}{2} \\ \frac{c_1}{c_2}=\frac{-5}{-7}=\frac{5}{7} \\ \frac{a_1}{a_2}=\frac{b_1}{b_2}\ne\frac{c_1}{c_2} \end{gathered}[/tex]Thus, the solution is inconsistent as there is no solution.
Thus, option (B) is the correct solution.
In a local election, Marshall received 682 votes and Emilio received 366 votes. Which option shows the ratio of Emilio's number of votes to Marshall's number of votes?
Given data:
The votes got by Marshall are M=682.
The votes got by Emilio are E=366.
The expression for the ratio of Emilio's number of votes to Marshall's number of votes is,
[tex]\begin{gathered} \frac{E}{M}=\frac{366}{682} \\ =\frac{183}{341} \end{gathered}[/tex]determine the length of . question 15 options: a) 9.17 units b) 6.32 units c) 3.74 units d) 10.77 units
The length of CD is 6.32 units.
From the question, we have
CB / AB = DB / CB
CB / 14 = 10 / CB
CB² = 14 × 10
CB = √140
using the Pythagorean theorem,
AB² = CB² + AC²
14² = (√140)² + AC²
196 - 140 = AC²
AC = √56
Using the ratio of the similar triangle,
CD / AC = DB / CB
CD / √56 = 10 / √140
CD = (√56 × 10)/√140
CD = 6.32 units
the length of CD is 6.32 units.
Divide:
Repetitive subtraction is the process of division. It is the multiplication operation's opposite. It is described as the process of creating equitable groups. When dividing numbers, we divide a larger number down into smaller ones such that the larger number obtained will be equal to the multiplication of the smaller numbers. One of the four fundamental mathematical operations, along with addition, subtraction, and multiplication, is division. Division is the process of dividing a larger group into smaller groups so that each group contains an equal number of things. It is a mathematical operation used for equal distribution and equal grouping.
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Find the area of the following figure with the indicated dimensions. Note that the figure represents a geometric shape with a hole.
13 cm
4 cm
8 cm
6 cm
Answer:
Step-by-step explanation:
A rectangle with dimensions of 4 units by 5 units is enlarged by a scale factor of 1.2. By what percent does its area increase?
The area of any shape after dilation is equal to the area of the original shape multiplied by the square of the scale factor:
[tex]A_{\text{new}}=k^2\cdot A_{\text{original}}[/tex]Where
A_new indicates the area of the shape after the dilation
A_original is the area of the original shape
k is the scale factor
The first step is to determine the area of the original shape and the new shape, using the formula:
[tex]A=w\cdot l[/tex]The original shape has dimensions 4 and 5, so its area is:
[tex]\begin{gathered} A_{\text{original}}=4\cdot5 \\ A_{\text{original}}=20 \end{gathered}[/tex]Next is to determine the area of the shape after the dilation (A_new)
The scale factor is k=1.2
[tex]\begin{gathered} A_{\text{new}}=k^2\cdot A_{\text{original}} \\ A_{\text{new}}=(1.2)^2\cdot20 \\ A_{\text{new}}=1.44\cdot20 \\ A_{\text{new}}=28.8 \end{gathered}[/tex]Now that we calculated both areas, we can determine the increase percentage.
- First, calculate the increase (I), which is the difference between the area of the new shape and the area of the original shape:
[tex]\begin{gathered} I=A_{\text{new}}-A_{\text{original}} \\ I=28.8-20 \\ I=8.8 \end{gathered}[/tex]-Second, divide the increase by the original area and multiply the result by 100
[tex]\begin{gathered} \frac{I}{A_{\text{original}}}\cdot100 \\ \frac{8.8}{20}\cdot100 \\ 0.44\cdot100=44 \end{gathered}[/tex]This means that the area increased 44% after the dilation
Use trigonometric identities, algebraic methods, and inverse trigonometric functions, as necessary, to solve the following trigonometric equation on the interval [0, 28t).Round your answer to four decimal places, if necessary. If there is no solution, indicate "No Solution."- 15csc?(x) - 1 = -32cot(x)yea
To solve the equation:
[tex]-15\csc ^2x-1=-32\cot x[/tex]We meed to remember the identity:
[tex]\csc ^2x=\cot ^2x+1[/tex]Plugging this identity in the equation we have:
[tex]\begin{gathered} -15(\cot ^2x+1)-1=-32\cot x \\ -15\cot ^2x-15-1=-32\cot x \\ 15\cot ^2x-32\cot x+16=0 \end{gathered}[/tex]Hence we have the quadratic equation in the cotangent:
[tex]15\cot ^2x-32\cot x+16=0[/tex]To solve it let:
[tex]w=\cot x[/tex]Then we have the quadratic equation:
[tex]15w^2-32w+16=0[/tex]let's use the general formula to solve it:
[tex]\begin{gathered} w=\frac{-(-32)\pm\sqrt[]{(-32)^2-4(15)(16)}}{2(15)} \\ =\frac{32\pm\sqrt[]{1024-960}}{30} \\ =\frac{32\pm\sqrt[]{64}}{30} \\ =\frac{32\pm8}{30} \\ \text{then} \\ w=\frac{32+8}{30}=\frac{40}{30}=\frac{4}{3} \\ \text{ or } \\ w=\frac{32-8}{30}=\frac{24}{30}=\frac{4}{5} \end{gathered}[/tex]Once we know the value of w we can find the value of x, remember the definition of w, then we have:
[tex]\begin{gathered} \cot x=\frac{4}{3} \\ \text{ and} \\ \cot x=\frac{4}{5} \end{gathered}[/tex]Since it is easier to work with the tangent function we will use the fact that:
[tex]\tan x=\frac{1}{\cot x}[/tex]Hence our equations take the form:
[tex]\begin{gathered} \tan x=\frac{3}{4} \\ \text{and} \\ \tan x=\frac{5}{4} \end{gathered}[/tex]Finally to solve the equations we need to remember that the tangent function has a period of pi, therefore we have that:
[tex]\begin{gathered} x=\tan ^{-1}(\frac{3}{4})+\pi n \\ \text{and} \\ x=\tan ^{-1}(\frac{5}{4})+\pi n \end{gathered}[/tex]where n is any integer number. To find the solutions in the interval given we plug n=0 and n=1 in each expression for x; therefore, the solutions in the interval are:
[tex]\begin{gathered} x=0.6435 \\ x=0.8961 \\ x=3.7851 \\ x=4.0376 \end{gathered}[/tex]Show that each statement is false by providing a counterexample.
(a) If the measures of
a) Counterexample: [tex]m\angle{P}=90^{\circ}, m\angle{Q}=45^{\circ}, m\angle{R}=45^{\circ},[/tex]
b) Counterexample:[tex]m\angle{1}=45^{\circ}, m\angle{2}=45^{\circ},[/tex]
c) Counterexample: length=16, width=4
d) Counter example: angle ABD= 50 degree, angle CBD=10 degree
What is the interior?
Something's interior or related to its interior; inward.
a) An acute angle is one that measures less than 90 degrees.
Counterexample: [tex]m\angle{P}=90^{\circ}, m\angle{Q}=45^{\circ}, m\angle{R}=45^{\circ},[/tex]
(90 degrees is not an acute angle)
b) When the sum of two angles is 90°, then the angles are known as complementary angles
Counterexample:[tex]m\angle{1}=45^{\circ}, m\angle{2}=45^{\circ},[/tex]
( None of the angles is greater than 45 degrees )
c) Area of rectangle = length*width=16*4
Counterexample: length=16, width=4
d) Since C is the interior of the angle ABD, then, angle ABD+angle CBD=60 degrees
Counterexample: angle ABD= 50 degree, angle CBD=10 degree
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Could you please check my answer? Use the equations to solve the system of equations:Y=0X=7My answer: (7,0)
ANSWER:
[tex](7,0)[/tex]STEP-BY-STEP EXPLANATION:
We have the following system of equations
[tex]\begin{gathered} x=7 \\ y=0 \end{gathered}[/tex]In the case x = 7, it is parallel to the y axis, through the point 7 in x, and in the case y = 0, it is the same x axis, therefore the intercept is the point (7 , 0)
The solution is:
[tex](7,0)[/tex]4. A rectangular garage has a volume of 480 m, a length of 12 m and a width of 8 m. What isthe height of the garage?
Answer:
5 m
Explanation:
The volume of the rectangular garage can be calculated as:
[tex]\text{Volume }=\text{Length }\times\text{ Width }\times\text{ Height}[/tex]If we replace Volume by 480, Lenght by 12, and Width by 8, we get:
[tex]480=12\times8\times\text{ Height}[/tex]Now, we can solve the equation for the Height as:
[tex]\begin{gathered} 480=96\times\text{ Height } \\ \frac{480}{96}=\frac{96\text{ }\times Height}{96} \\ 5=\text{Height} \end{gathered}[/tex]Therefore, the height of the garage is 5 m
I actually have the answer it just says it’s wrong when I try to submit it. It says that I need to enter the correct number and units. Can anyone help with this?
Input
[tex]36.2\text{ yards}[/tex]Not
[tex]b=36.2[/tex]