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romanna [79]
3 years ago
9

How do you solve this without substituting 2a+b=-5 -5a+b=16

Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer:

answer shown in picture above

Step-by-step explanation:

you need to multiply them so that you can simplify it. the bottom b will become negative and the b's will x out

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PLEASE HELP I AM SO CONFUSED
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Answer:

a)  h(3) = 9

b)  h(0) = 6

c)  h(6) = 4

Step-by-step explanation:

Piecewise functions have <u>multiple pieces</u> of curves/lines where each piece corresponds to its definition over an <u>interval</u>.

Given piecewise function:

\sf h(x)=\begin{cases}\sf \dfrac{x^2-36}{x-6} &\textsf{if }x\neq  6\\\\\sf 4 & \textsf{if }x=6\end{cases}

Therefore, the function has two definitions:

  \sf h(x)=\dfrac{x^2-36}{x-6} \quad \textsf{when x does not equal 6}

  \sf h(x)=4 \quad \textsf{when x equals 6}

<u>Part (a)</u>

h(3) means to substitute x = 3 into the function.

As <u>x does not equal 6</u>, substitute x = 3 into the <u>first piece of the function</u>:

\begin{aligned}\sf \implies h(3) & =\sf \dfrac{(3)^2-36}{(3)-6}\\\\ & = \sf \dfrac{9-36}{-3}\\\\ & = \sf \dfrac{-27}{-3}\\\\ & = \sf 9\end{aligned}

<u>Part (b)</u>

h(0) means to substitute x = 0 into the function.

As <u>x does not equal 6</u>, substitute x = 0 into the <u>first piece of the function</u>:

\begin{aligned}\sf \implies h(0) & =\sf \dfrac{(0)^2-36}{(0)-6}\\\\ & = \sf \dfrac{0-36}{-6}\\\\ & = \sf \dfrac{-36}{-6}\\\\ & = \sf 6\end{aligned}

<u>Part (c)</u>

h(6) means to substitute x = 6 into the function.

As <u>x equals 6</u>, then use the <u>second piece of the function</u>:

\sf \implies h(6)=4

Learn more about piecewise functions here:

brainly.com/question/11562909

brainly.com/question/28151925

7 0
1 year ago
Read 2 more answers
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