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rosijanka [135]
3 years ago
5

Find the arc length of the partial circle.

Mathematics
1 answer:
ElenaW [278]3 years ago
8 0

Answer:

38.485(correct to 5 significant figure)/ 12.25π

Step-by-step explanation:

\pi(7 {}^{2} )( \frac{90degree}{360deree} )

= \pi(49)( \frac{1}{4} )

=38.485(cor. to 5 sig.fig.)/ 12.25π

to find arc length of sector,we need to π(radius²)(sector's degree divided by 360 degree)

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Answer:

When you buy expensive items with a loan, you often need to make a down payment to cover a portion of the purchase price. That initial payment is often critical for getting approved, and it can affect your borrowing costs throughout the life of your loan. As a result, it’s wise to understand how down payments work so you can choose the right down payment amount.

3 0
3 years ago
Which of these is the algebraic expression for "some number to the power of six?" A.6x B.X+6 C.X^6 D.6^X
Alina [70]

Answer:

C

Step-by-step explanation:

A and B can be removed because they don't have the "^" known as a carrot which symbolizes a number raised to a certain power.

D is wrong because it says 6 is raised to the x power.

C is correct because a value will be raised to the sixth power.

7 0
3 years ago
If the minute hand of a clock moves 45 degrees, how many minutes of time have passed?​
Tcecarenko [31]

Answer:

45 minutes have passed

Step-by-step explanation:

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6 0
3 years ago
At a college, 69% of the courses have final exams and 42% of courses require research papers. Suppose that 29% of courses have a
laila [671]

Answer:

a) 0.82

b) 0.18

Step-by-step explanation:

We are given that

P(F)=0.69

P(R)=0.42

P(F and R)=0.29.

a)

P(course has a final exam or a research paper)=P(F or R)=?

P(F or R)=P(F)+P(R)- P(F and R)

P(F or R)=0.69+0.42-0.29

P(F or R)=1.11-0.29

P(F or R)=0.82.

Thus, the the probability that a course has a final exam or a research paper is 0.82.

b)

P( NEITHER of two requirements)=P(F' and R')=?

According to De Morgan's law

P(A' and B')=[P(A or B)]'

P(A' and B')=1-P(A or B)

P(A' and B')=1-0.82

P(A' and B')=0.18

Thus, the probability that a course has NEITHER of these two requirements is 0.18.

3 0
3 years ago
A dice is thrown four times in a row. Find the probability of getting different result each throw.
MatroZZZ [7]

Answer:

the answer is b 1/4 its means got it 1 time same after throwing it 4 times

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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