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3 years ago

Find the circumference of a circle that has a diameter of 2 ft. use 3.14 for pi

Mathematics

1 answer:

timurjin [86]3 years ago

7 0

C = (pi)(d)
C = 3.14 * 2
C = 6.28 <==

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Use the relative frequency approach to estimate the probability of the event. In a certain class of students, there are 8 boys f

In-s [12.5K]

Answer:

$P\text{Student will be from Kenilworth}\approx 0.256$

Step-by-step explanation:

We have been given that that there are 8 boys from Wilmette, 5 girls from Kenilworth, 9 girls from Wilmette, 5 boys from Glencoe, 5 boys from Kenilworth and 7 girls from Glenoce.

The total number of students from Kenilworth is 5 boys plus 5 girls that is 10 students.

The total number of students in the class would be $8+5+9+5+5+7=39$

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}$

$P\text{Student will be from Kenilworth}=\frac{\text{Number of student from Kenilworth}}{\text{Total number of students}}$

$P\text{Student will be from Kenilworth}=\frac{10}{39}$

$P\text{Student will be from Kenilworth}=0.2564102564$

$P\text{Student will be from Kenilworth}\approx 0.256$

Therefore, the probability, that the student will be from Kenilworth, is approximately 0.256.

7 0

3 years ago

The shown quadrilateral is a rectangle. If AB is 10 what is the length of DC?

kipiarov [429]

The answer is:

A. 10

This is because segment AB is parallel to segment DC, meaning they are the same length.

Hope this helps!

7 0

3 years ago

Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can

artcher [175]

Answer:

The house is 18.75 feet tall

Step-by-step explanation:

The triangles are similar by the AA postulate.

We are given the length of the bottom sides of the triangles, 4 and 15 respectively.

Thus, the ratio is 4:15

We are also given the height of Annie's eyes, which is 5 feet. The height of the side that corresponds to the house is 5, so we can set up a proportion.

$\frac{4}{15} = \frac{5}{x} \\4x = (5*15) = 75\\x = \frac{74}{4} \\x = 18.75$

Thus, the house is 18.75 feet tall.

5 0

3 years ago

I don’t understand how to do this problem

irga5000 [103]

Answer:

Car

Step-by-step explanation:

Well, the car is 21 feet in one second.

6*21=126

The truck, however, is 18 feet per second.

18*6=108

The car is faster.

3 0

3 years ago

Pritam bought a laptop at Rs 16583. He has already deposited 13% of the total amount. How much is the amount that he has to pay?

Kobotan [32]

Answer:

He has to pay 14427.21 rupees.

Step-by-step explanation:

1. 13% of 16583 = 2155.79

2. 16583 - 2155.79= 14427.21

3. Has to pay 14,427.21 rupees

3 0

2 years ago