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Softa [21]
3 years ago
15

Can some solve me this one question

Mathematics
1 answer:
iogann1982 [59]3 years ago
7 0
What is the question?
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The circumference of a circle is 24 pi cm. What is the exact area of the circle?
makvit [3.9K]
144pi
becous the radius is 24pi/(pi*2) and thet is 12
now 12²*pi is 144pi
3 0
3 years ago
Read 2 more answers
Which of the following equations have no solutions?
blondinia [14]

Answer:

D is the correct answer

8 0
2 years ago
A truck driver travels 93 miles in one hour and 30 minutes at this rate how far will he travel in four hours
sdas [7]
<h3>Answer: 248 miles</h3>

======================================================

Work Shown:

1 hr, 30 min = 1 hr + 30/60 hr

1 hr, 30 min = 1 hr + 0.5 hr

1 hr, 30 min = 1.5 hr

The driver travels 93 miles in 1.5 hours, so his speed is

rate = distance/time

r = d/t

r = 93/1.5

r = 62 mph

In four hours, he travels

d = r*t

d = 62*4

d = 248 miles

---------------

An alternative method is shown below

(93 miles)/(1.5 hrs) = (x miles)/(4 hours)

93/1.5 = x/4

93*4 = 1.5*x ..... cross multiply

372 = 1.5x

1.5x = 372

x = 372/1.5

x = 248

5 0
3 years ago
Read 2 more answers
A noise level of a lawn tractor is approximately
Natali5045456 [20]

Answer:

Step-by-step explanation:

Since the noise level of a lawn tractor is approximately

normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - u)/s

Where

x = the noise level

u = mean noise level

s = standard deviation

From the information given,

u = 100 decibels

s = 3 decibels.

We want to find the probability that a randomly selected lawn tractor will generate a noise level of

more than 105 decibels. It is expressed as

P(x > 105) = 1 - P(x ≤ 105)

For x = 105,

z = (105 - 100)/3 = 1.67

Looking at the normal distribution table, the probability corresponding to the z score is 0.9525

P(x > 105) = 1 - 0.9525 = 0.0475

3 0
3 years ago
Pls help i only have 2 minutes!!!!!!!!!!!!!!
umka21 [38]

Answer:

40 + ( -63) is less

Step-by-step explanation:

.... .....

4 0
3 years ago
Read 2 more answers
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