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Alexus [3.1K]
3 years ago
12

Given cos A = 0.36, find angle A in degrees. round your answer to the nearest hundredth.

Mathematics
1 answer:
vodomira [7]3 years ago
5 0

Answer:

68.9°

Step-by-step explanation:

cos^{-1}(0.36) ≈ 68.90

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The second and third terms of a G.P is 6 times the fourth term. Find the possible values of the common ratio. ​
egoroff_w [7]

Answer:

-1/3 or 1/2.

Step-by-step explanation:

Second term = ar, the third = ar^2 and the fourth = ar^3.

So we have the equation:

ar + ar^2 = 6ar^3

r + r^2 = 6r^3

6r^3 - r^2 - r = 0

r(6r^2 - r - 1) = 0

(3r + 1 )(2r -1) = 0

r = -1/3, 1/2.

7 0
3 years ago
Need help with a math question
Romashka-Z-Leto [24]

ACD and ACE are supplementary angles that need to equal 180 degrees

ACE = 180 -100 = 80 degrees.

4 0
4 years ago
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A coin is tossed times and comes up heads times. Use the Empirical Method to approximate the probability that the coin comes up
Vedmedyk [2.9K]

Answer:

P(head) = 0.5600

Step-by-step explanation:

Given

n = 500 -- number of toss

head = 280 --- outcomes of head

<em>See comment</em>

Required

Empirical probability of head

This is calculated as:

P(head) = \frac{n(head)}{n}

P(head) = \frac{280}{500}

P(head) = 0.5600

6 0
3 years ago
Henry wants to buy the same number of gift bags and bows. Gift bags are sold in packs of 6. Bows are sold in packs of 9. What is
Lynna [10]

Answer:

<em>Henry will buy 18 gift bags and 18 bows in 3 packs of gift bags and 2 packs of bows.</em>

Step-by-step explanation:

<u>Least Common Multiple (LCM)</u>

Is the smallest positive number that is a multiple of two or more numbers. To find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number.

Since Henry wants to buy the same number of gift bags and bows and they are sold in packs with different quantities, we must find the LCM between those numbers.

Gift bags are sold in packs of 6. Bows are sold in packs of 9.

List the prime factors of 6: 2,3

List the prime factors of 9: 3,3

Multiply: 2*3*3=18

The  LCM is 18. This means Henry will buy 18 gift bags and 18 bows in 3 packs of gift bags and 2 packs of bows.

3 0
4 years ago
What is another way to write 9×200 in multiplication
zaharov [31]
Is just like fact family your answer will be 200×9. Hope this helps. Because if you multiply 200×9 you will get the same answer as you will get if you multiply 9×200. Hope this helps. Good Night, Sleep Tight, Sweet Dreams, Smile Everyday, Have A Great Day
4 0
3 years ago
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