A circle is cut out of a square as shown.

Mathematics

2 answers:

Vesna [10]2 years ago

6 0

A 22 square feet i think

Alinara [238K]2 years ago

3 0

Answer:

22 ft^2

Step-by-step explanation:

d of the cirlce=10 ft

Area of cirlce=pi(d^2)/4

=pi×(10^2)/4

=pi×(100)/4

p=pi×25

= Approximately, 78.539 ft^2

Length of square=10ft

Area of square=l^2

=10ft^2

=100 ft^2

Area of shaded portion=Area of square-Area of square

=100ft^2-78.539

=22 ft^2(closest given on the problem)

You might be interested in

For a medical study, a researcher wishes to select people in the middle 60% of the population based on blood pressure.

Finger [1]

Answer:

Lower limit: 113.28

Upper limit: 126.72

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:

$\mu = 120, \sigma = 8$