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3 years ago

What is the value of x?

Mathematics

1 answer:

DIA [1.3K]3 years ago

6 0

Answer:

it is an angle of 90°so we first

3x+6+57=90

3x+63=90

3x+63-63=90-63

3x=27

x=9

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F(x) = square root of x+9 ; g(x) = 8x - 13<br> Find f(g(x))

ryzh [129]

Answer:

$\sqrt{8x-4}$

Step-by-step explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(8x - 13)

= $\sqrt{8x-13+9}$

= $\sqrt{8x-4}$

3 0

3 years ago

What is 2X +7 = 5X -8

inna [77]

Answer:

X=5

Step-by-step explanation:

2X+7=5X-8

7=3X-8

15=3X

5=X

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3 years ago

Read 2 more answers

a box holds red pens and blue pens the ratio of red pens to blue pens is 1 to 4 The box holds 12 more blue pens than red pens wh

Genrish500 [490]

Answer:

20 pens

Step-by-step explanation:

if there is 1 red pen for every 4 blue pens

then

4 red pens would have 16 blue pens with it. makes a total of 20 pens, with 12 more blue pens than red pens

7 0

3 years ago

I need all the angles of all four please, I uploaded them in order of each question

adelina 88 [10]

Answer:

Blurry

Step-by-step explanation:

8 0

3 years ago

What is the measurement of angle X

jasenka [17]

I would say 60 degrees because the shape that has x is just a bigger version of the original so it would have the same angels so x is 60 degrees

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3 years ago