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Daniel [21]
3 years ago
6

Solve a system of equations using substitution –2x + 5y = 14 x = 8

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Step-by-step explanation:

Putting value of x

-2(8) + 5y = 14

-16 + 5y = 14

5y = 14 + 16

5y = 30

y = 30 /5 = 6

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Find the inverse of the function f(x)=8^x
ludmilkaskok [199]

Answer:

y = logx/log8

Step-by-step explanation:

To find the inverse of an equation, you switch the locations of x and y, then solve for y.

So in this case, f(x) = y, and your equation is:

y = 8^x

It would become

x = 8^y

There are multiple ways to solve this- one I usually use is logs, so you take the log of both sides.

log x = ylog8

(when you take the log of something the exponent becomes a coefficient)

Then, y = logx/log8

I hoped this helped!

6 0
3 years ago
ILL MARK BRAINLIEST IF U ANSWER CORRECT.
nasty-shy [4]

Answer:

so the labelled angles are 30 and 90, but it only shows one 90. In fact there are 4 angles of 90. The marked 90 then the vertical angle and the complementary angles. All triangles equal 180 so the given 30 and 90 are taken from the 180.

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4 0
3 years ago
What is Factor tree of 495?
Masteriza [31]

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<span>Which is the same as = 32 x 5 x 11Prime Factors Tree of 495<span><span>495 
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7 0
3 years ago
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The difference of two numbers is equal to 0.6. Their quotient is also 0.6. What are the numbers? There are 4
Makovka662 [10]
Let the two numbers be represented by x and y. The problem statement gives rise to two sets of equations.
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or
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The solution of the first pair of equations is
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8 0
3 years ago
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zloy xaker [14]

Answer:

The first two

Step-by-step explanation:

Do the parenthesis of the first and you will get the original equation.

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6 0
3 years ago
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