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aivan3 [116]
2 years ago
8

What is the approximate area of a circle with a radius of 15 ft? A. 47 ft2 B. 177 ft2 C. 94 ft2 D. 707 ft2

Mathematics
2 answers:
vlada-n [284]2 years ago
5 0

Answer:

707 ft²

Step-by-step explanation:

Given,

Radius ( r ) = 15 ft

To find : Area ( circle )

Formula : -

Area ( circle ) = πr²

Note :

The value of π = 3.14

Area ( circle )

= 3.14 x 15²

= 3.14 x 225

= 706.5 ft²

Approximation of 706.5 is 707.

Therefore,

707 ft² is the approximate area of a circle with a radius of 15 ft.

Taya2010 [7]2 years ago
3 0

Answer:

A≈706.86ft²

Answer= D. 707 ft2

Step-by-step explanation:

Brainliest :D

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A pair of parallel lines is cut by another pair of parallel lines as shown in the figure. Which angles are congruent to angle K?
noname [10]

Answer:

B. angles M, E, and C.

Step-by-step explanation:

Angles are congruent by being corresponding angles, or vertical angles, or alternate interior or exterior angles.

Answer:   B. angles M, E, and C.

8 0
3 years ago
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The demand for a daily newspaper at a newsstand at a busy intersection is known to be normally distributed with a mean of 150 an
AURORKA [14]

Answer:

171 newspapers.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 150, \sigma = 25

How many newspapers should the newsstand operator order to ensure that he runs short on no more than 20% of days

The number of newspapers must be on the 100-20 = 80th percentile. So this value if X when Z has a pvalue of 0.8. So X when Z = 0.84.

Z = \frac{X - \mu}{\sigma}

0.84 = \frac{X - 150}{25}

X - 150 = 0.84*25

X = 171

So 171 newspapers.

4 0
3 years ago
A 4-pint carton of sour cream costs $9.12. What is the price per cup?
Mamont248 [21]
1 pint = 2 cups

1 pint x 4 & 2 cups x 4

4 pints = 8 cups

9.12/8

1.14

$1.14 per cup
5 0
3 years ago
Please help me!
irina1246 [14]

Answer:

50.24m²

Step-by-step explanation:

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= 3.14 × 4 × 4

= 50.24

3 0
3 years ago
How many centimeters are in 3.2 inches? [1 inch = 2.5 cm]
frez [133]
2.54 cm = 1 inch

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3 years ago
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