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mr_godi [17]
3 years ago
13

Help Please!! What is the value of a? Enter your answer in the box. a =

Mathematics
1 answer:
Talja [164]3 years ago
6 0

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

\sqrt{a {}^{2} }  =  \sqrt{225}

therefore a=15

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1) given
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3) definition of linear pair and supplementary
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8 0
3 years ago
The smaller triangle was dilated to form the larger triangle. What is the value of x?
Nikolay [14]
We know that
scale factor=measure larger triangle/measure smaller triangle---->18/12
scale factor=1.5
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8 0
3 years ago
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A 3” x 5” photo is enlarged so that the length of the new photo is 7 inches. Find the width of the new photo.. a. 4.20 inches. c
Andrej [43]
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3 0
3 years ago
Given f(x)=3x-1 find f(-1)
vaieri [72.5K]

Answer:

<h2>f( - 1) = - 4</h2>

Step-by-step explanation:

f(x) = 3x - 1

To find f(-1) substitute the value of x that's

- 1 into f(x). That's for every x in f(x) replace it with - 1 and solve

That's

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We have the final answer as

<h3>f(-1) = - 4</h3>

Hope this helps you

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Ratling [72]

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see the attached figure

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3 years ago
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