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4 years ago

If m 1=(7x-19), and m 2=(x+5), find m 2

Mathematics

1 answer:

shutvik [7]4 years ago

3 0

The value of m2 is 1/7(m1 + 54)

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15 of the people at the picnic left by 9 PM if there were 60 people at the picnic how many did not leave by 9 PM

zysi [14]

Hello

The answer is 45 people if you break down the equation you can get 60 -10 is 50 then subtract 5 to get 45 and you have your answer

Hope this helps
Plz mark me as brainist Thanks!!!!

4 0

3 years ago

Given the pre-image ABCD and the image after a dilation, A'B'C'D', what is true about the polygons? Check all that apply. The le

vazorg [7]

<h2>Answer </h2>

You should check the following:

The length of AB is 2

The length of A'B' is 3

The scale factor is $\frac{3}{2}$

<h2>Explanation</h2>

- To find the length of AB, we will use the distance formula:

$d(A,B)=|x_{1}-x_{2}|$

From the picture we can infer that $x_{1}=2$ and $x_{2}=4$ , so let's replace the values.

$d(A,B)=|2-4|$

$d(A,B)=|-2|$

$d(A,B)=2$

The length of AB is 2, so you should check the first answer

- To find the length of A'B', we will use the distance formula one more time:

From the picture we can infer that $x_{1}=3$ and $x_{2}=6$ , so let's replace the values.

$d(A',B')=|3-6|$

$d(A',B')=|-3|$

$d(A',B')=3$

Since the length of A'B' is 3, you should also check the second answer as well.

- In a transformation (in this case a dilation) the pre-image is the original shape and the image is the shape after the transformation.

Since the image is bigger than the pre-image, the third answer is false.

- Let $k$ be the scale factor

We know that the length of AB is 2 and we need to multiply that length by the scale factor to get length of A'B' i.e 3, so:

$2k=3$

$k=\frac{3}{2}$

Since the scale factor is $\frac{3}{2}$ , you should check the fourth answer as well.

- We already prove that the scale factor is $\frac{3}{2}$ , so the fifth answer is false.

5 0

4 years ago

Read 2 more answers

Simplify.<br><br> Rewrite the expression in the form 4^x.<br><br> 4^4 x 4^3 = ??

sesenic [268]

Answer:

$4^{7}$

Step-by-step explanation:

To simplify the expression $4^{4}\times4^{3}$ , we can use the first law of the law of indices which states that the exponent is added together when multiplying numbers with the same base. Eg: $a^{x}\times a^{y} = a^{x+y}$ .