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3 years ago

No fake answers, thank you. I will happily give brainiest to anyone that answers them all correctly.

Mathematics

2 answers:

True [87]3 years ago

4 0

A) 3/2 b) 6 c) at 1.5 weeks the plants grew 2.25 inches hope this helps

kkurt [141]3 years ago

3 0

Sorry I can’t buddy........................................................:(

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How to calculate 146 divided by 397<br> step by step<br> to get the result 0,3377

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What is the value of x<br> What is the value of x?

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4 years ago

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5. Draw a model to write 30/4 as a mixed number.

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3 years ago

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B. $\displaystyle -1, -7$

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4 years ago

The sides of ∆ABC are 30 units, 40 units, and 60 units long. The corresponding sides of ∆XYZ are r times as long as the sides of

san4es73 [151]

Part a) Find the expression that gives the perimeter of ∆XYZ

we know that

Perimeter of triangle ABC is equal to

$P=30+40+60\\ P=130\ units$

In this problem ∆ABC and ∆XYZ are similar triangles

the scale factor is equal to r

$scale\ factor=r \\ \\ scale\ factor=\frac{perimeter\ triangle\ XYZ}{perimeter\ triangle\ ABC} \\ \\ perimeter\ triangle\ XYZ=perimeter\ triangle\ ABC*scale factor\\ \\ perimeter\ triangle\ XYZ=130*r$

therefore

the answer Part a) is

The expression that gives the perimeter of ∆XYZ is $130*r\ units$

Part b) Find the expression that gives the area of ∆XYZ

we know that

$Area\ of\ triangle\ ABC=n\ units^{2}$

$scale\ factor=r \\ \\ scale\ factor^{2}=\frac{Area\ triangle\ XYZ}{Area\ triangle\ ABC} \\ \\ Area\ triangle\ XYZ=Area\ triangle\ ABC*scale factor^{2}\\ \\ Area\ triangle\ XYZ=n*r^{2}\ units^{2}$

therefore

the answer Part b) is

The expression that gives the Area of ∆XYZ is $n*r^{2}\ units^{2}$

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3 years ago

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