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ziro4ka [17]
2 years ago
8

I need help with these two trigonometry problems.

Mathematics
1 answer:
telo118 [61]2 years ago
3 0

Answer:

B= 21° C= 29°

Step-by-step explanation:

Use sin rule.

1st one.

sin44°/33 = sinB/17

sinB= 17sin44/33

B= sin^-1 ( ans)

B= 20,97 =21°

2nd one.

sin92°/35 = sinC/17

sinC = 17sin92°/35

C= sin^-1 (ans)

C= 29,04° = 29°

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First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision.
Lyrx [107]

It is not a <u>probability distribution</u>, as the sum of the probabilities is more than 1, thus, the correct option is No, considering that:

c) Since the sum of the probabilities is not equal to 1.

-----------------------------------------

For the sequence (x, P(X = x)) representing a probability distribution, it is needed that:

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  • The sum of all probabilities is 1, that is: \sum_{i = 1}^n P(x_i) = 1

In this problem, the sum of the probabilities is:

\sum_{i = 1}^n P(x_i) = 0.39 + 0.69 + 0.12 = 1.20

<u>Sum is not 1,</u> thus it is not a probability distribution, and the correct option is:

c) Since the sum of the probabilities is not equal to 1.

A similar problem is given at brainly.com/question/24858659

8 0
3 years ago
- 1/3 (9x - 27) = 15 what is the 2 step of this 2 step equation​
lilavasa [31]

Answer:

x= -2

Step-by-step explanation:

-1/3(9x-27)=15

Multiplying both sides by -3

9x-27=15×(-3)

9x-27=-45

Now

Add 27 to both sides

9x=-45+27

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Divide both sides by 9

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4 0
3 years ago
What is the fourth term of the expansion of the binomial (2x+5)^5
larisa [96]
For a binomial expansion with exponent 5, the general equation is as follows
(x + y)⁵ = x⁵ + 5x⁴y + 10x³y² + 10x²y³ + 5xy⁴ + y⁵


when expanded from left to right the powers of x decrease from 5 to 0 and powers of y increase from 0 to 5

substitute x =2x and y = 5

(2x + 5)⁵ = (2x)⁵ + 5(2x)⁴5 + 10(2x)³5² + 10(2x)²5³ + 5(2x)5⁴ + 5⁵

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</span>we use the pascals triangle to find the coefficient

we can use the binomial theorem to find the 4th term as well
exponent - 5
term - 4
5!/ (5-4)!4! * (2x)⁴5⁵⁻⁴
=120/24 *16x⁴*5
=400x⁴
7 0
3 years ago
A) Work out<br>4 1/7 + 1 1/2​
posledela
The answer is 5 9/14
3 0
3 years ago
Using the order of operations, what should be done first to evaluate 6 squared + 10 divided by (negative 5) (3) minus 5?
marusya05 [52]

Answer:

apply the BODMAS concept

brackets, off, division, multiplication, addition, subtraction

Step-by-step explanation:

(6²+10)÷(-5×3)-5

in this case the answer is D

4 0
3 years ago
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