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notsponge [240]

3 years ago

12

Which of the following objects has the most kinetic energy? A. a car driving on the freeway B. a pumpkin getting carved into a j

ack-o'-lantern C. a sandpile D. a bowling pin waiting to be knocked over

1 answer:

taurus [48]3 years ago

8 0

A. A car driving on the freeway. Because it is moving
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A national study found that 44% of college students engage in binge drinking. Using the 68-95-99.7 rule to describe the sampling

WARRIOR [948]

Answer:

$\bf \sigma = 0.0351$

Step-by-step explanation:

68–95–99.7 Rule : It also known as the empirical rule and it is a shorthand used to calculate the percentage of values that lie within a range around the mean in a normal distribution with the width of several standard deviation

μ = π = sample proportion

= 44 %

= 0.44

Population standard deviation proportion,

$\sigma = \sqrt{\frac{\pi \times (1 - \pi)}{n}}\\\\\implies \sigma= \sqrt{\frac{0.44 \times (1 - 0.44)}{200}}\\\\\implies\bf \sigma = 0.0351$

4 0

3 years ago

Please help with this question!!!

Alexus [3.1K]

Answer: f (x) x 1/200

Step-by-step explanation:

6 0

3 years ago

Please someone help me !! :(

geniusboy [140]

Answer: 27 times bigger.

Step-by-step explanation:

You need to use the following formula to find the volume of a Square pyramid:

$V=\frac{1}{3}s^2h$

Where "s" is the edge of a side of the square base and "h" is the height of the pyramid.

Knowing that:

$s_A=12\ in\\\\h_A=8\ in\\\\\\s_B=36\ in\\\\h_B=24\ in$

You can find the volume of the Pyramid A and the volume of the Pyramid B:

$V_A=\frac{1}{3}(12\ in)^2(8\ in)\\\\V_A=384\ in^3\\\\\\V_B=\frac{1}{3}(36\ in)^2(24\ in)\\\\V_B=10,368\ in^3$

Finally divide the volume of the Pyramid B and the volume of the Pyramid A, in order to find how many times bigger than the Pyramid A is the Pyramid B.

You get:

$\frac{10,368\ in^3}{384\ in^3}=27$

7 0

3 years ago

(9 • 27)^1/2<br> A.) 9<br> B.)3radical3<br> C.) 9radical3<br> D.)27

kobusy [5.1K]

$(9 \times 27)^ \frac{1}{2} = \sqrt{9 \times 27} = \sqrt{9 \times 3 \times 9} = 9 \sqrt{3}$

Answer: 9√3

6 0

4 years ago

I will give Brainlist if solved fast.

True [87]

Hi I did a plug and play because I don’t know how else to do it.
So I started adding numbers till the tarts equal 20 and then the cherries in the tarts equals 89.

11tarts times* 5cherries is 55 black cherries
7tarts times * 4 cherries is 28 red cherries
2tarts Times* 3 cherries is 6 white cherries
20 tarts and 89 cherries

So with the information☝️in the constraints that makes the statement true above... There are 9 more black tarts on tray than white.

6 0

2 years ago