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3 years ago

If you drive your car for 4.5 hours at an average speed at 70 miles per hour how far did you go ?

Mathematics

1 answer:

vodka [1.7K]3 years ago

3 0

I think it would be 315. because 4.5*70..but im not sure

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What is the simplified expression for the expression below?

yarga [219]

The answer to your question is choice c) 9x + 17.

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3 years ago

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Translate the statements into a confidence interval for p. Approximate the level of confidence. In a survey of 8451 U.S. adults,

Sedaia [141]

Answer:

The confidence interval is $0.304 < p < 0.324$

Step-by-step explanation:

From the question we are told

The sample proportion $\r p = 0.314$

The margin of error is $E = 0.01$

The confidence interval for p is mathematically represented as

$\r p - E < p < \r p + E$

=> $0.314 - 0.01 < p < 0.314 + 0.01$

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3 years ago

-0.615,-5/8,-0.63 least to greatest

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-0.63,-5/8,-0.615 I hope this is helpful and I'm pretty sure it's correct.

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Complete the square to slove 3x^2+12x =9

saveliy_v [14]

Answer:
(x + 2)² = 7
Step-by-step explanation:
We have to complete the square in the given equation
3x² + 12x = 9
3x² + 12x - 9 = 0
3[x² + 4x -3] = 0
3[x² + 2(2x) + 4 - 4 - 3] = 0
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Therefore, the square form of the equation is (x + 2)² = 7

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3 years ago

Translate the following word phrase into an algebraic expression: nine times the difference of 5 and y

Ira Lisetskai [31]

Answer:

$9*(5-y)$

Step-by-step explanation:

In this problem, we are expected to write/express the given statement in algebra notation. that is using mathematical expression letters and symbols to express word problem

Hence: nine times the difference of 5 and y

1. the difference of 5 and y= (5-y)

2. 9*(5-y)

Hence the expression is given as $9*(5-y)$

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3 years ago