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2 years ago

Amar rakes leaves for his neighbors to earn money he earned 64 dollars after 8 hours of work

Mathematics

1 answer:

levacccp [35]2 years ago

6 0

Amar makes 8 dollars an hour for raking leaves
8

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Let m = X^2 + 3.

Tpy6a [65]

The Equation in terms of m, m^2+7m+10=0

What is substituting in the equation ?

substituting means changing or replacing the values in the given equation.

Calculation:

Given equation is (x^2+3)^2+7x^2+21=-10

and m= X^2 + 3.

make the given equation in the form X^2 + 3,

now,

(x^2+3)^2+7x^2+21=-10

(x^2+3)^2+7(x^2+3)=-10

where,

X^2 + 3= m

after putting the value or replacing the values

we get, m^2+7m=-10

m^2+7m+10=0

the above equation is in the form of "m".

The Equation in terms of m, m^2+7m+10=0

Leran more about substitution here:

brainly.com/question/24094293

#SPJ1

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1 year ago

Javier simplified the expression below. Find and describe the three mistakes he made.

OverLord2011 [107]

$( \dfrac{20x}{5x^8})^-^3$

Take out the constants

$( \dfrac{20}{5} * \dfrac{x}{x^8} ) ^-^3$

$(4*\dfrac{x}{x^8} ) ^-^3$

Use the rule : $\frac{{x}^{a}}{{x}^{b}}={x}^{a-b}
$

$(4x^1^-^8)^-^3$

$(4x^-^7)^-^3$

Use the negative power rule : ${x}^{-a}=\frac{1}{{x}^{a}}
$

$\frac{1}{4(x^-^7)}^-^3$

$\frac{1}{4^3(x^-^7)}^-^3$

$\dfrac{1}{64x^-^2^1}$

$\dfrac{1}{64* \dfrac{1}{x^2^1}}$

$\dfrac{1}{64 \dfrac{}{x^2^1}}$

$= \dfrac{x^2^1}{64}$

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Which of the following graphs represents the solution to the inequality 4x – 12 – x ≥ 3?

zubka84 [21]

Answer:

x≥5

Step-by-step explanation:

..... . .............

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