3 years ago

Evaluate each expression for the given values of the variable: 8z + 3;z = 8

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

Answer:

Step-by-step explanation:

8z + 3

Let z =8

8*8+3

64+3

Sedbober [7]3 years ago

5 0

Answer:

Step-by-step explanation:

This question is based on substitution in which a specific number will be given to replace a letter, hope you understand

Then back to the question

8z+3 and z is given to be 8

Let's substitute

8(8)+3

64+3

Therefore the final answer is 67

I believe you understand how we get this final answer

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Evaluate k to the 6th power times p to the -7 power when k is 2 and p is -1

Solnce55 [7]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad a^n\implies \cfrac{1}{a^{-n}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
k^6p^{-7}~~
\begin{cases}
k=2\\
p=-1
\end{cases}\implies (2)^6(-1)^{-7}\implies \cfrac{2^6}{(-1)^7}\implies \cfrac{64}{-1}\implies -64$