3 years ago

A car is traveling at a speed of 52 mph. How far does it travel in 31/2hr?

Mathematics

1 answer:

Marina86 [1]3 years ago

7 0

182 mph is the answer!

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Simplify the polynomial. Then find its value for the given value of the variable.

vekshin1

Answer:

Step-by-step explanation:

Simplified expression:

$3x^3 -x^3 +5x^3-9x^3$

$2x^3 +5x^3-9x^3$

$7x^3 -9x^3$

$-2x^3$

If x = -1, the value of the expression is:

$-2x^3$

$-2(-1^3)$

$-2(-1)$

$2$

Hope this helps!

3 0

3 years ago

Which phrase has the same meaning as 12 y minus 2?Answer options with 4 options.Subtract the sum of 12 and y from 2.B.Subtract 2

zhenek [66]

Answer: B

Step-by-step explanation:

if its 12y-2 then it would be the same as subtracting 2 from 12+y

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3 years ago

The function f(x) = x2 + 10x – 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?

MrRa [10]

The vertex of the quadratic equation is (-5, - 28). In vertex form, y = a(x - h)2<span> + </span><span>k, (h, k) is the vertex of the equation.</span>

5 0

3 years ago

Read 2 more answers

Please HELP ASAP £ FREE BRAINLIST :)

Aleksandr [31]

Answer:

4.6 ft/s

2 ft/s

Step-by-step explanation:

7 0

3 years ago

The following gives information about the proportion of a sample that agree with a certain statement. Use StatKey or other techn

marishachu [46]

Answer:

(0.2278, 0.3322)

Step-by-step explanation:

Given that out of 400 people 112 agree and 288 disagree

Proportion of people agreeing = $\frac{112}{400} =0.28$

$q=1-p =0.72\\se = \sqrt{\frac{pq}{n} } =0.03175$

For confidence interval 90% we have critical value as

1.645

Margin of error =1.645*SE

= $1.645(0.03175)\\= 0.0522$

Confidence interval $= (0.28-0.0522, 0.28+0.0522)\\= (0.2278, 0.3322)$

3 0

3 years ago