All categories

2 years ago

Find the area of the circle. Round your answer to the nearest hundredth. 3 in

Mathematics

2 answers:

forsale [732]2 years ago

7 0

Answer:

28.27 or 28 rounded up.

Ber [7]2 years ago

4 0

Answer:

7.07 in²

Step-by-step explanation:

Diameter = 3 in ( shown in figure )

Radius = 1/2( diameter) = 1/2 (3) = 1.5 in

Area of a circle = πr²

Area = (3.14)(1.5)²

Area = (3.14)(2.25)

Area = 7.065 in

Area = 7.07 in² ( round off)

You might be interested in

Put thes fallowing numbers in order from largest to smallest -3, -3.5, 6, -6, 0, 1

Verdich [7]

6, 1, 0, -3, -3.5, -6

5 0

3 years ago

Read 2 more answers

The fastest speed recorded for a cheetah is 70 mph. This is 11 mph less than 3 times the fastest running speed for a man. What i

Aleks04 [339]

If we work it through:

70mph is 11mph less than 3 times the fastest running speed for a man.

So 70 + 11 = 81mph is 3 times the fastest running speed for a man.

Can you see where to go from here?

4 0

3 years ago

Read 2 more answers

A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

Ahat [919]

Answer:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

$\hat p=\frac{21}{100}=0.21$ estimated proportion of overfilled bags

$p_o=0.15$ is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:

Null hypothesis: $p =0.7$

Alternative hypothesis: $p > 0.15$

The statistic for this case is:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And replacing the info given we got:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

5 0

3 years ago

Find the slope of the line that contains the points named.

8090 [49]

Answer:

M= 0

Step-by-step explanation:

the ys are the same

6 0

2 years ago

This caked was sliced parallel to the base

Greeley [361]

Square (added characters)

3 0

3 years ago

Read 2 more answers