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sp2606 [1]
2 years ago
5

PLZ HELP ILL GIVE BRAINLY!!!!!!!!!!!!

Mathematics
2 answers:
Harlamova29_29 [7]2 years ago
5 0
The correct answer is C
mars1129 [50]2 years ago
3 0

Answer:

Step-by-step explanation:

(3-\sqrt{2)(3+\sqrt{2)

=(3)^2-(\sqrt{2 )^2

=9-2

=7

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A cake has a circumference of 25 1/7 inches. What is the area of the cake? Use 22/7 to approximate pi
Novosadov [1.4K]
To calculate for area given the circumference we proceed as follows:
C=2πr
where:
r=radius
thus given that C=25 1/7 in=176/7
thus plugging in our formula to solve for r we get:
176/7=2πr
thus
r=4.002~4.00 in
hence the area will be:
A=πr²
A=π×(4²)
A=50 2/7 in²


7 0
3 years ago
Which graph represents the inverse sine function?
hichkok12 [17]
Answer: A.
The inverse sine function is written as sin−1(x) or arcsin(x). Inverse functions swap x- and y-values, so the range of inverse sine is − π/2 to π/2 and the domain is −1 to 1. When evaluating problems, use identities or start from the inside function.
(REFER TO CHART BELOW)

6 0
2 years ago
10) Thirty-seven percent of the American population has blood type O+. What is the probability that at least four of the next fi
lisabon 2012 [21]

Answer:

0.06597

Step-by-step explanation:

Given that thirty-seven percent of the American population has blood type O+

Five Americans are tested for blood group.

Assuming these five Americans are not related, we can say that each person is independent of the other to have O+ blood group.

Also probability of any one having this blood group = p = 0.37

So X no of Americans out of five who were having this blood group is binomial with p =0.37 and n =5

Required probability

=The probability that at least four of the next five Americans tested will have blood type O+

= P(X\geq 4)\\= P(X=4)+P(x=5)\\= 5C4 (0.37)^4 (1-0.37) + 5C5 (0.37)^5\\= 0.06597

7 0
3 years ago
Read 2 more answers
Which quadrant? help??
Colt1911 [192]

Answer:

Step-by-step explanation:

That depends on the question

7 0
3 years ago
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a helicopter rises 800 feet and then travels east 1,100 feet. how far is this from its starting point?
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wouldn't it be 300 ft east??

8 0
3 years ago
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