All categories

2 years ago

HELP HELP 20 Points Geometry

Mathematics

1 answer:

Elanso [62]2 years ago

6 0

270° → $\frac{3π}{2}$ ≈ 4.7

360° → $2π$ ≈ 6.3

60° → $\frac{π}{3}$ ≈ 1.1

45° → $\frac{π}{4}$ ≈ 0.8

135° → $\frac{3π}{4}$ ≈ 2.4

225° → $\frac{5π}{4}$ ≈ 3.9

You might be interested in

Use the original price and the markup to find the retail price.

Ber [7]

Answer:

$45.15

Step-by-step explanation:

When you are dealing with questions with percents in them—like this one—you have to turn the percent into a decimal. To make 7.5% into a decimal, you move the decimal point 2 spaces to the left. So, 7.5% is also 0.075.

Now, we have to use this formula for these types of questions:

x + x(y)= the price with tax (or markup)

So, we can substitute the variables.

42+42(0.075)=the retail price

42(0.075)=3.15

42+3.15=45.15

So, the retail price will be $45.15

5 0

3 years ago

Use the givin values to complete each table

Vilka [71]

To find the answers, substitute the variables (letters) in the equation for the number on that line that corresponds to that letter, then solve with the equation.

4 0

3 years ago

What is f–1(8)??<br><br> Please select the best answer

notka56 [123]

Answer:

$f^{-1}(8)=\frac{3}{2}$

Step-by-step explanation:

Given f(x)= $2x+5$

We have to find $f^{-1}(8)$

In order to find $f^{-1}(x)$ we have to make x as the subject of the formula

Let us assume f(x)=y

⇒ $2x+5=y$

Subtracting both sides by 5

$2x+5-5=y-5$

$2x=y-5$

Dividing both sides by 2

$\frac{2x}{2}=\frac{y-5}{2}$

⇒ $x=\frac{y-5}{2}$

Now substituting y with x

we have $f^{-1}(x)=\frac{x-5}{2}$

Now $f^{-1}(8)=\frac{8-5}{2}$

= $\frac{3}{2}$

So option (ii) is correct

5 0

3 years ago

Read 2 more answers

The perimeter of the original triangle is 48 inches. What is the perimeter of the reduced triangle? ((the answer that i put in i

jonny [76]

The length of the hypotenuse equals to the square root of the sum of the square of the other two sides.
12x12+16x16=144+256=400
The square root of 400 is 20.

By the same way, you can find the length of the hypotenuse of the reduced triangle
9x9+12x12=81+144=225
The square root of 225 is 15
The length of the hypotenuse is 15

The perimeter =12+9+15
The perimeter=36

8 0

3 years ago

For a survey of senior citizens, a copy of the annual city census is obtained, and 30,000 residents 65 years of age and older ar

zalisa [80]

Answer: The sampling frame is 400 and the sample 250.

Step-by-step explanation:

The sampling frame is a list of elements used to determine the samples. The sampling frame contains 400 senior citizens of which 250 samples were interviewed.

4 0

3 years ago