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Elden [556K]
3 years ago
7

A preimage includes a line segment with a length of x units and a slope of m units. The preimage is dilated by a scale factor of

n. The length of the corresponding line segment in the image is (x, or nx) units. The slope of the corresponding line segment in the image is (m, or nm) .
Mathematics
2 answers:
lapo4ka [179]3 years ago
8 0
Nx is the first one  and m is the second answer
Anastasy [175]3 years ago
7 0

Answer:

Slope becomes m

length becomes nx

Step-by-step explanation:

Slope:

We know that

slope is the ratio of change in y-value and change in x-value

so, dilation do not change slope of any line

so, after dilation

m---->m

Length of line:

we know that

A dilation has the effect of stretching or shrinking the line segment by the factor of m units

we are given

length of line =x

so, it's length will become

=n\times x

=nx

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in a party,there is 40 percent more males than females.there are 475 males and females altogether.how many males were at the par
Phantasy [73]

The ratio of males to females is 1.4 : 1, so the fraction of the total that is made up of males is 1.4/(1.4 + 1) = 1.4/2.4 = 7/12.


There were (7/12)*475 ≈ 277 males at the party.

There were 475 - 277 = 198 females at the party.

7 0
3 years ago
Which of the following could be the side measures of a right triangle?
Lady bird [3.3K]

Answer:

A

Step-by-step explanation:

Because a^2+b^2=c^2 in a right triangle by Pythagorean's Theorem.  So, the only one that works is 3^2+4^2=5^2 because 9+16=25.

4 0
3 years ago
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4 0
4 years ago
Katherine buys a tv with a normal price of $200 and she has a 25% off coupon. How much money did she save????
andrey2020 [161]

Given:

Normal price of a tv = $200

Coupon = 25% off

To find:

The money saved by Katherine.

Solution:

Katherine buys a tv with a normal price of $200 and she has a 25% off coupon. It means, the money saved by Katherine is 25% of normal price of tv, i.e., $200.

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6 0
3 years ago
For the function y=-3+ cos (x + 4)], what is the minimum value?
Mrac [35]

Answer:

-4 is the mimumum of y=-3+cos(x+4)

Step-by-step explanation:

The minimum value of y=cos(x) is -1.

The minimum value of y=cos(x+4) is still -1; the +4 inside the cosine function only affected the horizontal shift.

The minimum value of y=-3+cos(x+4) is -3-1 which is -4.  This brought the graph down 3 units so if the minimum was previously -1 and it got brought down 3 units then it's new minimum is -4.

5 0
3 years ago
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