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scoundrel [369]
3 years ago
15

(2/5) Help me with this problem, please.

Mathematics
1 answer:
lana [24]3 years ago
4 0

You divided in the wrong order. The resulting image always goes first then the preimage is afterward.

scale factor = (new)/(old) = 10/8 = 1.25

<h3>Answer is choice B</h3>

The scale factor is larger than 1, so this means we have an enlargement going on.

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Question 2 (Essay Worth 10 points)
sashaice [31]
Ryan is correct, the mean is about 8.1.

To find the mean, you have to add up all the values, then divide by the total amount.

For Sample A:
60 x 6 + 90 x 7 + 145 x 8 + 150 x 9 + 55 x 10 = 4050

If you add up all the adults, you have 500.

Dividing 4050 by 500 = 8.1

Sample B will produce a very similar result.
5 0
3 years ago
433x3 how u start this off
den301095 [7]
Answer :
433 x 3
1299
4 0
3 years ago
Read 2 more answers
A board is 7 3/4 feet in length. How many full size pieces of board 1 1/3 feet in length can a carpenter cut from that board of
Savatey [412]
The carpenter can cut six full sized pieces of board.
6 0
3 years ago
Read 2 more answers
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!!
tangare [24]

Answer: 8

Step-by-step explanation:

7 0
3 years ago
What is the solution of the matrix equation?
katrin [286]

Hello from MrBillDoesMath!

Answer:

The first choice ( -12, 20)



Discussion:

Using matrix multiplication we find the equations:


1x  + 1y = 8                     (A)

2x  + 3y = 36                   (B)


Next, compute

  2(A) - B  =>

         (2x + 2y) - (2x + 3y) = 2*8 - 36    =>

          (2x - 2x) + ( 2y-3y) = 16 - 36 =>

          -y = -20  =>

         y = 20


Substituting this y value in (A) gives

         x + 20 = 8 =>

         x = 8 - 20 =>

        x = -12


The answer is the first choice ( -12, 20)


Thank you,

MrB

6 0
3 years ago
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