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Montano1993 [528]
3 years ago
12

Cos(15°) use the half-angle formula to find the exact value​

Mathematics
1 answer:
WITCHER [35]3 years ago
7 0

Answer:

cos15=√2+√3/2

Step-by-step explanation:

really hope this helps tell me if it doesn't

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What is the probability of rolling a sum of 5 on a standard pair of six-sided dice? express your answer as a fraction or a decim
viva [34]

The probability of rolling a sum of 5 on a standard pair of six sided dice is 1/9.

According to the given question.

A standard pair of dice is rolled.

So, the sample sapce for rolling a pair of dice = {(1,1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 1), (5, 2), (5, 3), (5, 4),(5, 5),(5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}

⇒ Total number of outcomes = 36

And, the outcomes for getting a sum of five on a sandard pair of six sided dice = {(2, 3), (3, 2), (4, 1), (1, 4)}

⇒ Total number of favorable outcomes = 4

As we know that " probability is the ratio of total number of favorable outcomes to the total number of outcomes".

Therefore,

The probability of rolling a sum of 5 on a standard pair of six-sided dice

= 4/36

= 1/9

Hence, the probability of rolling a sum of 5 on a standard pair of six sided dice is 1/9.

Find out more information about probability here:

brainly.com/question/11234923

#SPJ4

8 0
2 years ago
How to get the right answer
marusya05 [52]

Answer:

15 cm

Step-by-step explanation:

Write out the formula:                                     a^2 + b^2 = c^2

Plug in the numbers that you were given:    a^2 + 6^2 = 16^2

Solve for the numbers that you were given: a^2 + 36 = 256

Subtract:                                                                  - 36 = - 36

                                                                          a^2         = 220

Then, you find your answer:                            a^2 = 220

The square root of 220 is 14.832396974191326. But you are going to round it and you get 15. So, the answer is 15 cm.

Hope this helps

-Amelia

7 0
4 years ago
What is the absolute value of -13
igor_vitrenko [27]

Answer:

13

Step-by-step explanation:

Absolute value is the distance that number is from zero

4 0
4 years ago
groom lawn equipment pays Amy a $1130 monthly salary plus 10% commission on merchandise she sells each month. Assume Amy's sales
ozzi

The monthly salary = $1130 plus 10% commission from the sells

The sales of the last month = $37,200

so, the amount of commission = 10% of 37,200 =

\frac{10}{100}\cdot37,200=0.1\cdot37,200=3,720

So, the gross pay = 1,130 + 3,720 = $4,850

5 0
1 year ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%20%7D%7B4x%7D%20%20%2B%20%20%20%5Cfrac%7B1%7D%7Bx%7D%20%20%3D%208" id="TexFormu
Anvisha [2.4K]
If you multiply x over, you get
8x = 3/4 + 1
8x = 7/4
x = 7/4 * 1/8
x = 7/32
7 0
3 years ago
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