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3 years ago

A gardening club has 21 members, of which 13 are males and the rest are females. What is the ratio of females to all

Mathematics

1 answer:

sammy [17]3 years ago

5 0

Answer:

There are 8 Females out of the 21

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Look at the triangle show on the right. The Pythagorean Theorem states that the sum of the squares of the legs of a right triang

Vladimir [108]

Answer:

$cos^2\theta + sin^2\theta = 1$

Step-by-step explanation:

Given

$(\frac{b}{r})^2 + (\frac{a}{r})^2$

Required

Use the expression to prove a trigonometry identity

The given expression is not complete until it is written as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = (\frac{r}{r})^2$

Going by the Pythagoras theorem, we can assume the following.

a = Opposite
b = Adjacent
r = Hypothenuse

So, we have:

$Sin\theta = \frac{a}{r}$

$Cos\theta = \frac{b}{r}$

Having said that:

The expression can be further simplified as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$

Substitute values for sin and cos

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$ becomes

$cos^2\theta + sin^2\theta = 1$

3 0

3 years ago

Can you help me out with this one?

shepuryov [24]

Answer: 98

Step-by-step explanation:

98 / (-7) = -14

7 0

3 years ago

Read 2 more answers

Mrs. chin paid a 20 percent tip on the bill for lunch.if the tip amount was $2.75, what was the bill for lunch before the tip wa

bija089 [108]

The original bill for the lunch was $13.75

8 0

3 years ago

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A home business has an average income of $900.00 per month with a standard deviation of $15.00. If the income in a given month i

Llana [10]

Answer = 2.00

Z score is a statistical that corresponds to the standardization of the regular score to a normal distribution

The formula for Z score is Z = [X - mean ]./ (standard deviation)

Here X = 930.00; mean = 900.00; and standard deviation = 15.00

Then, Z = [930.00 - 900.00] / 15.00 = 30.00 / 15.00 = 2.00

Therefore, your answer is 2.00

Hope I helped :)

3 0

3 years ago

Which expressions<br> are equivalent to 90¹⁶

tangare [24]

Answer:

-30(3+2w)

(-9-6w) ⋅ 10

−20(4.5 + 3w)

Step-by-step explanation:

4 0

2 years ago