2 years ago

If 9/a = 7/a², then a=?

Mathematics

1 answer:

Jobisdone [24]2 years ago

5 0

Answer:

x = 7/9

Step-by-step explanation:

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Help please. Geometry.

Luda [366]

Answer:

Trapezoid i think

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2 years ago

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If the rate of change (ROC) of the function is quadratic, what is the function type ? Choose the correct answer.

evablogger [386]

If the rate of change (ROC) of the function is quadratic, then the function type is cubic

<h3>What is rate of change?</h3>

The rate of change of a function is the rate at which the output values change over the input value

The rate of change of a function is one degree less than the actual function

This means that, a cubic function will have a quadratic rate of change

Hence, the correct option is (d)

Read more about rate of change at:

brainly.com/question/8728504

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2 years ago

Jacob earned $80 babysitting and deposited the money into his savings account. The next week he spent $85 Lon video games. Use i

nexus9112 [7]

After one week, Jacob has earned $80 from babysitting, so his change is an increase of $80. The next week, he spends $85, so he experiences a decrease of $85. Over the two weeks, his overall change is $80-$85=-$5, or a decrease of $5.

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2 years ago

(3x-4y)^2-(3x-4y)(3x+4y)

zheka24 [161]

Answer:

$-24xy + 32y^2$

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

$(a + b)^2 = a^2 + 2ab + b^2$
$(a + b)(a - b) = a^2 - b^2$

<h3>Simplify</h3>

$(3x - 4y)^2 - (3x - 4y)(3x + 4y)$
$(9x^2-24xy+16y^2) - (9x^2 - 16y^2)$
$9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2$
$-24xy + 32y^2$

The simplified form is $-24xy + 32y^2$

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1 year ago

14^(5x+2) < 11^(4x-1)

kherson [118]

To simplify 14^(5x+2)<11(4x-1)
x < -2.130032

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2 years ago