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3 years ago

Find the length of the missing side, x. The triangle is not drawn to scale. 13 X 12

Mathematics

1 answer:

Fiesta28 [93]3 years ago

4 0

X^2 + 12^2 = 13^2. (‘^2’= to 2nd power)

X^2 + 144 = 169
- 144. -144 (make X term by itself)
X^2 = 25 (to undo “squared”, find root.)
X = 5

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Find the area of a circle in feet with the radius being 3'.

Nonamiya [84]

Answer:

28.27 ft²

Step-by-step explanation:

$A=\pi r^2$ where $r$ is the radius

Plug in 3 for the radius

$A=\pi (3)^2\\A=9\pi$

$A=28.27$ (approximate answer when rounded to the nearest hundredth)

Therefore, the area of the circle is 28.27 ft².

I hope this helps!

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3 years ago

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Zach is trying to decide which of three golf

nadya68 [22]

Answer:

No, the population of people is poorly represented with this low sample size. 150 would better represent the population as a whole. 42 people would want to play on Rolling Meadows. (according to the previous data)

Step-by-step explanation:

Most likely this small sample size is too small to gain sufficient data from the whole population. If he were to survey a larger sample of people, he would overall better represent the population as a whole. The percentage of people who would prefer Rolling Meadows in the first sample was 28% (7/25). So just multiply 150 times .28 and get 42. 42 people would want to play on Rolling Meadows.

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3 years ago

Tony and Maria are two star-crossed lovers trying to get on a committee of 4 people. If there are 9 people eligible for this com

ASHA 777 [7]

Answer:

The number of ways Tony and Maria can both be selected for the committee is 8 ways.

Step-by-step explanation:

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3 years ago

What is the area of a semicircle with the diameter of 16

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Step-by-step explanation:

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3 years ago

Let F(x) = x^2 – 15 and G(x)= 4 - x Find (F/G)(–7) =

KATRIN_1 [288]

Answer:

$\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{34}{11}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Functions
Function Notation

Step-by-step explanation:

Step 1: Define

Identify

F(x) = x² - 15

G(x) = 4 - x

Step 2: Find

Substitute in functions: $\displaystyle \bigg( \frac{F}{G} \bigg)(x) = \frac{x^2 - 15}{4 - x}$

Step 3: Evaluate

Substitute in x [Function (F/G)(x)]: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{(-7)^2 - 15}{4 - (-7)}$
Exponents: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{49 - 15}{4 - (-7)}$
Subtract: $\displaystyle \bigg( \frac{F}{G} \bigg)(-7) = \frac{34}{11}$

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3 years ago