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dolphi86 [110]
2 years ago
6

Find the value of the trigonometric ratio. Express your answer as a fraction in lowest terms.

Mathematics
1 answer:
Blizzard [7]2 years ago
4 0

Answer:

12/13

Step-by-step explanation:

We know that cosine is the adjacent side divided by the hypotenuse in a right triangle.

The adjacent side to angle C is BC

The hypotenuse is AC because it is opposite to the right angle

So...

cosine is (BC)/(AC)

36/39

12/13

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The ratio of boys to girls at a movie is 4:7. If there are 21 girls, how many boys are at
Leona [35]

Answer: 12 boys at the movie

Step-by-step explanation:

The ratio of boys to girls is 4:7. There are 21 girls at the movie. This is 3 times more than the simplified ratio of girls to boys. Thus, to find the answer, multiply 4 by 3 to get 12 boys at the movie.

7 0
3 years ago
Read 2 more answers
How many years will it take each situation to double its money? Situation A: Matthew invests $5,000 in an account with a compoun
algol [13]

Answer:

Matthew's money will double fastest in 6 years.

Step-by-step explanation:

<u><em>The complete question is</em></u>

Answer the question for each scenario<u><em> by applying the rule of 72</em></u>. How many years will it take each situation to double its money? Situation A: Matthew invests $5,000 in an account with a compound interest rate of 12%. Situation B: Morgan invests $2,500 in an account with a compound interest rate of 8%. Situation C: Maysen invests $10,000 in an account with a compound interest rate of 4.5%. Whose money will double fastest?

we know that

The <u><em>Rule of 72</em></u> is a simple way to determine how long an investment will take to double given a fixed annual rate of interest. By dividing 72 by the annual rate of return.

so

Situation A: Matthew invests $5,000 in an account with a compound interest rate of 12%

\frac{72}{12}=6\ years

Situation B: Morgan invests $2,500 in an account with a compound interest rate of 8%.

\frac{72}{8}=9\ years

Situation C: Maysen invests $10,000 in an account with a compound interest rate of 4.5%

\frac{72}{4.5}=16\ years

therefore

Matthew's money will double fastest in 6 years.

7 0
3 years ago
Is the following equation an example of direct variation? <br><br> y equals 5 x
matrenka [14]
Yes it is a direct variation

8 0
3 years ago
Find the slope perpendicular to the given points
mihalych1998 [28]

Answer:

perpendicular slope = \frac{7}{3}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (6, - 6) and (x₂, y₂ ) = (- 1, - 3)

m = \frac{-3+6}{-1-6} = \frac{3}{-7} = - \frac{3}{7}

Given slope m then the slope of a perpendicular line is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{3}{7} } = \frac{7}{3}

3 0
3 years ago
Read 2 more answers
Select the similarity transformation(s) that make ABC similar to EDC.
just olya [345]

Given the triangles ABC and EDC

We will find the transformation that makes the triangles are similar

As shown: the triangles are reflected over the y-axis

the rule of the reflection over the y-axis will be as follows:

(x,y)\rightarrow(-x,y)

And as shown, the length of the side AB = 3 units

And the length of the side ED = 1 units

So,

ED=\frac{1}{3}AB

So, the answer will be:

D) (x,y) ⇒ (-x, y)

E) (x,y) ⇒ (1/3 x, 1/3 y)

4 0
1 year ago
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