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2 years ago

To calculate the area of a circle, you may use a formula. True False

Mathematics

2 answers:

Ivan2 years ago

8 0

Answer:

True.

Step-by-step explanation:

To calculate the area of a circle you have to use the formula Area = PI times radius squared.

Whitepunk [10]2 years ago

5 0

Answer:

True

Step-by-step explanation:

The formula for an area of a circle is a = pi times radius squared

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HELPPP!!! I NEED HELP WITH 1-6!!!

xeze [42]

Explanation: turn the percentage into a decimal, like for number 4 make it 0.40
then divide it by 30
Really hopes this helps!

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2 years ago

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Andreas93 [3]

Answer:

(6,1)

Step-by-step explanation:

(6,1)

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2 years ago

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[ please help! ] The graph below shows a line segment PQ.

Tpy6a [65]

Answer:

Slope of the line segment PQ is 1/2.

Step-by-step explanation:

We are given with a line connecting two points P and Q.

The coordinates of P are (4,4) and the coordinates of Q are (-2,1).

Slope of line joining two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$

is given by the formula $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Hence the slope of the line PQ is $\frac{1-4}{-2-4}=\frac{-3}{-6}= \frac{1}{2}$

Therefore correct option is 'C' that is 1/2.

4 0

2 years ago

A binomial event has n = 50 trials. The probability of success for each trial is 0.60. Let x be the number of successes of the e

babunello [35]

Answer:

30 and 3.4641

Step-by-step explanation:

The mean of a binomial distribution is:

μ = np

And the standard deviation of a binomial distribution is:

σ = √(npq)

Here, n = 50, p = 0.60, and q = 0.40.

μ = np = 50 × 0.60 = 30

σ = √(npq) = √(50 × 0.60 × 0.40) = 3.4641

3 0

2 years ago

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In a given binomial distribution, there are 625 trials, and the probability of success is p =0.29. What is the variance?

Shkiper50 [21]

Answer:

128.69.

Step-by-step explanation:

The variance is np(1 - p)

= 625*(0.28) * 0.71

= 128.69.

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2 years ago