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3 years ago

HELP PLEASE!!! I'm desperate! I don't understand.

Mathematics

1 answer:

yuradex [85]3 years ago

8 0

<h3>Answer: Choice B</h3>

D ' (-7, 7) , E ' (-3.5, 14) , F ' (7, 10.5) , G ' (-3.5, -7)

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Explanation:

Point D has coordinates x = -2 and y = 2. Multiply each by the scale factor 3.5 to get

3.5*(-2) = -7

3.5*(2) = 7

Therefore the new location is now (-7, 7) which is where point D ' is at.

The same idea applies to all of the other points

E(-1, 4) ----> E ' (-3.5, 14) after multiplying both coordinates by 3.5

F(2, 3) ----> F ' (7, 10.5) doing the same to the coordinates of point F

G(-1, -2) -----> G ' (-3.5, -7) ditto to the coordinates of point G

Extra info: the preimage DEFG enlarges to the image D'E'F'G' because the scale factor 3.5 is larger than 1.

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F(x)= -1/3x+13 when value is f(-3)

almond37 [142]

Answer:

Step-by-step explanation:

f(x)=-1/3x+13

f(-3)=-1/3(-3)+13

f(-3)=3/3+13

f(-3)=1+13

f(-3)=14

4 0

2 years ago

Yuet solved the equation 6 a minus 2 b = 12 for a. Her steps are shown below. 1. Subtract 2b: 6 a = 12 minus 12 b 2. Divide by 6

Ber [7]

Question:

Yuet solved the equation $6a - 2b = 12$ for a.

Her steps are shown below.

1. Subtract 2b: $6a = 12 - 2b$

2. Divide by 6: $a = 2 - \frac{b}{3}$

Answer:

In step 1 she needed to add 2b to both sides of the equation.

Step-by-step explanation:

Given:

The above steps shows how Yuet solved an equation

Required:

True statement about Yuet's work

The implication of the statement is to state what Yuet should have done instead of what she did.

In step 1, she subtracted 2b from both sides of the equation; this is wrong.

Instead of subtracting, she ought to add 2b to both sides of the equation.

The correct steps and result is as follows:

1. Add 2b: $6a = 12 + 2b$

2. Divide by 6: $a = 2 + \frac{b}{3}$

Hence, we can conclude that in step 1 she needed to add 2b to both sides of the equation.

4 0

3 years ago

Read 2 more answers

Solve the equation and graph the solution(s), if possible. 9|4p + 2| + 8 = 35

Cerrena [4.2K]

Solving an equation means finding a value of a variable that make the equation true. This value is called the solution of the equation. A mathematical equation is just like a balanced equation. Both sides of the equation should be equal at all times. Whatever we do to one side, has to be done on the opposite side.

$9|4p + 2| + 8 = 35$

$
9|4p+2|=35-8
 
$ $Subtract \ 8 \ from \ both \ sides$

$9|4p+2|=27

 
$

$|4p+2|= \dfrac{27}{9}$ $Divide \ both \ sides \ by \ 9$

$|4p+2|=3$

$Break \ down \ the \ problem \ into \ these \ 2 \ equations$

$
4p+2=3
 
$

$-(4p+2)=3$

$Solve \ the \ 1st \ equation: \ 4p+2=3$

$4p=3-2$ $Subtract \ 2 \ from \ both \ sides$

$4p=1$

$p= \dfrac{1}{4}$ $Divide \ both \ sides \ by \ 4$

$Solve \ the \ 2nd \ equation: \ -(4p+2)=3$

$-4p−2=3$ $Simplify \ brackets$

$-4p=3+2$ $Add \ 2 \ to \ both \ sides$

$-4p=5$

$p= -\dfrac{5}{4}$

$Collect \ all \ solutions$

$p= -\dfrac{5}{4}$ , $p= \dfrac{1}{4}$

8 0

3 years ago

at best buy a flat screen television with a regular price of 1,790 was reduced by $395 . Assuming 800 customers purchased the te

Margaret [11]

You have to do $1,790 reduced (decreased) by $395 times 800 and your answer is $1166,000

5 0

3 years ago

I need to find what A and B are

laiz [17]

Answer:

a = 6, b = 3

Step-by-step explanation:

5a - 4 = 2a + 14

3a = 18

a = 6

6 = 2b

b = 3

6 0

3 years ago