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3 years ago

How does a dilation with a scale factor of 1 affect the preimage

2 answers:

8 0

It keeps it the exact same. It is basically just multiplying everything by one, meaning it’s all the same just as if we did 4 times 1 which would equal 4.

zubka84 [21]3 years ago

6 0

I need to answer something it get points i hope you find the answers

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Verify <br>cos^4x-sin^4x=cos2x

kati45 [8]

A^2 - b^2 = (a - b)( a +b);
<span>cos^4x-sin^4x =( cos^2x + sin^2x )( cos^2x - sin^2x) = 1* cos2x = co2x.</span>

7 0

3 years ago

What does AD equal? PICTURE INCLUDED* Triangle congruence and similarity.

mafiozo [28]

Answer:

AD = 7

Step-by-step explanation:

Given that the two triangles are similar by the SSS (side side side) postulate, the triangles share the same ratios when it comes to their sides.

We know the values for lines DB, EB and CB, therefore we can solve for AB, and subtract DB to find AD

We can solve the problem by solving for x:

$\frac{x}{32} =\frac{21}{24}$

Cross multiply.

$24x = 672$

Simplify.

$x=28$

Subtract the value of DB to find AD.

$28-21=7$

$AD=7$

8 0

3 years ago

The length of one leg of a right triangle is 9cm and 40cm

Damm [24]

Answer:

Step-by-step explanation:

I think ur is D but I'm not sure

4 0

3 years ago

Read 2 more answers

What two fractions are being<br> multiplied?

tiny-mole [99]

I see 2/3 and 1/2 being multiplied

3 0

3 years ago

What is the slope of the line of best fit?

Ierofanga [76]

Step-by-step explanation:

The line passes through the origin and point (30,3)

so, slope of the graph( miles per minute)= 3/30 = 1/10 miles per minute

Or, slope of the graph miles per hour

$= \frac{3}{ \frac{30}{60} } = \frac{3 \times 60}{30} = 6$

option B

7 0

3 years ago