2 years ago

Four more than five times a number is -16. What's the number

Mathematics

1 answer:

ollegr [7]2 years ago

5 0

Answer: 4

Step-by-step explanation:

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What percent of the scores are between 67 and 85

Digiron [165]

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2 years ago

Evaluate the expressions when x = 10 & y =8.<br><br> 2y

klasskru [66]

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Step-by-step explanation:

y=8

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2(8)=64

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2 years ago

Pablo rented a truck for one day. there was a base fee of $14.95 and there was an additional charge of 94 cents for each mile dr

Bad White [126]

Answer:

Pablo drove 268 miles.

Step-by-step explanation:

266.87-14.95=251.92

251 .92÷0.94=268

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2 years ago

Parallel lines a and b are cut by a transversal c. What is mR in the diagram below?

ankoles [38]

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2 years ago

Find the exact length of the curve. x = 9 + 9t2, y = 6 + 6t3, 0 ≤ t ≤ 4

andrew11 [14]

ANSWER

$=102 \sqrt{ 17}$

EXPLANATION

The equation of the curve is:

$x = 9 + 9 {t}^{2}$

$y = 6 + 6 {t}^{3}$

We differentiate to obtain:

$\frac{dx}{dt} = 18t$

$\frac{dy}{dt} = 18t$

The length of the arc

$l = \int _0 ^{4} \sqrt{ {( \frac{dx}{dt} )}^{2} + {( \frac{dy}{dt} )}^{2} } dt$

This implies that:

$= \int _0 ^{4} \sqrt{ {( 18t )}^{2} + {( {18 {t}^{2} } )}^{2} } dt$

$= \int _0 ^{4} 18t \sqrt{ 1+ { {18 {t}^{2} } }} dt$

$=102 \sqrt{ 17}$

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2 years ago