2 years ago

Z^2 + 2z + 5 , when z = 2 , z^2 is "z squared

Mathematics

1 answer:

OverLord2011 [107]2 years ago

3 0

Answer:

=13

Step-by-step explanation:

=2^2+2×2+5

=4+4+5

=8+5

=13

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Two equations are given below: m + 4n = 8 m = n - 2 What is the Solution ?

Sophie [7]

M+4n=8
m=n-2
we see that m=n-2
so we can subsitute 'n-2' for m in the first equation
(n-2)+4n=8
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5n-2=8
add 2 to both sides
5n=10
divide by 5
n=2
subsitute
n=2
m=n-2
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3 years ago

2/5 g+3h -6 when g=10 h=6

motikmotik

<h3>hello!</h3>

let's evaluate this expression

$\pmb{\displaystyle\frac{2}{5}g+3h-6 }$

$\pmb{\displaystyle\frac{2}{5} *10+3(6)-6}$

$\pmb{\displaystyle\frac{2}{5} *10+18-6}$

$\pmb{\displaystyle\frac{2}{5} *10+12}$

Multiply:

$\pmb{\displaystyle\frac{2}{5} *\frac{10}{1} =\frac{20}{5} =4}$

Final Step:-

$\pmb{4+12}$

$\pmb{16}$

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Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I'll comment and/or edit my answer :)

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A runner finished a total of 1500 kilometers in races before retiring she finished thirty-two 15 kilometer races. The rest of he

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Answer:

102 of runner's races were 10-kilometer races.

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