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3 years ago

S=4\pi r^{2} Solve for r[/tex]

Mathematics

1 answer:

Veronika [31]3 years ago

8 0

S = 4pi r^2

S/4pi = r^2

taking square root on both sides,
r = sqrt (S/4pi)

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7y-23 plus 23x-16 plus 8x-21 show steps find x and Y

kicyunya [14]

7y-23+23x-16+8x-21
7y-23+31x-16-21
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3 years ago

You must show your staterment and reason T-chart to get full credit

marissa [1.9K]

Step-by-step explanation:

RS bisects PQ at T. PQ bisects RS at T.

<u>prove</u>: Triangle PTS congruent Triangle QTR

<h3>Statements..............................Reasons</h3>

(1) RS bisects PQ at T.................(1) Given

(2) PQ bisects RS at T.................(2) Given

(3) angle PST ≅ angle QRT........(3) supplements of congruent angles

(4) TS ≅ TR......................(4) Converse of Base Angles Theorem

(5) angle PTS ≅ angle QTR.........(5) Subtraction Property of Equality

(6) Triangle PTS ≅ Triangle QTR...(6) Angle side angle

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3 years ago

1. Determine whether the given procedure results in a binomial distribution. If not, state the reason why.

Anna11 [10]

Answer:

1.D) Procedure results in a binomial distribution.

2. B) Procedure results in a binomial distribution.

Step-by-step explanation:

The binomial distributions has following properties.

There is always one of the two outcomes success or failure possible.

The probability of p remains constant for all trials.

The successive trials are all independent.

The experiment is repeated for a fixed number of times.

If the experiment has the above properties it has binomial probability distribution.

In the given question both experiments have the above mentioned properties.

Both procedure result in binomial distribution.

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4 years ago

Nola hiked down a trail at a steady rate for 10 minutes. Her change in elevation was -200 feet. Then she continued to hike down

muminat

Answer:

1st portion

Step-by-step explanation:

Time taken for the 1st part of the hike = 10 minutes

Change in elevation in 1st part = - 200 feet

The negative sign indicates that the elevation is decreasing. So this means, elevation of Nola decreased by 200 feet in 10 minutes during this part.

We need to find out the rate i.e. the speed of her walk or hike. Since, speed is the ratio of distance to time, in this case it would be:

$\text{Rate}_{1}=\frac{\text{Change in Elevation}}{\text{Time Taken}}$

Using the values, we get:

$\text{Rate}_{1}=\frac{-200}{10}=-20$ feet per minute

This means during the 1st part her rate of walk was 20 feet per minute down the hill.

Time taken for the 2nd part of the hike = 20 minutes

Change in elevation in 2nd part = - 300 feet

Using the same formula we used above, we get:

$\text{Rate}_{2}=\frac{-300}{20}=-15$ feet per minute

This means during the 2nd part her rate of walk was 15 feet per minute down the hill.

Thus, Nola hiked down faster in the 1st portion of the hike.

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4 years ago

What does E=MC2 mean? Thanks.

coldgirl [10]

Answer: Energy equals mass times the speed of light squared.

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3 years ago