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3 years ago

User: Translate the following words to algebra symbols, using "n" as the variable. Seven is two less than twice a number.

Mathematics

1 answer:

muminat3 years ago

7 0

7 = 2n - 2

n= a number so twice a number is 2n and 7 is 2 less than twice this number.

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Write the inequality represented by the graph below.

Ipatiy [6.2K]

Answer:

y > -x + 3

Step-by-step explanation:

find the slope and y-intercept so you can create a linear equation:

y = mx + b ; m = slope and b = y-intercept

slope (m) = (3-0) / (0-3)

m = 3/-3 or -1

we can see the y-intercept by looking at the graph, it is 3

y > -x + 3

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2 years ago

What is the area of the following trapezoid in square feet?

tangare [24]

Answer:

82.5 ft²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = $\frac{1}{2}$ h (b₁ + b₂)

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 7.5, b₁ = 7 and b₂ = 15 , then

A = $\frac{1}{2}$ × 7.5 × (7 + 15) = 0.5 × 7.5 × 22 = 82.5 ft²

4 0

3 years ago

Read 2 more answers

The circle with center O has a minor arc BSA with a length of

tangare [24]

Answer:

D. $\frac{27\pi}{2}$ inches.

Step-by-step explanation:

We have been given that the circle with center O has a minor arc BSA with a length of $3\pi^{2}$ inches. The central angle is 40°.

To find the circumference of circle we will use formula:

$\frac{\text{Central angle}}{2\pi}=\frac{\text{Arc length}}{2\pi r}$ , where $2\pi$ = measure of 360 degrees in radians and $2\pi r$ = circumference of circle.

Let us convert measure of central angle into radians.

$40^{o}=\frac{40*\pi}{180} =\frac{2\pi}{9}$

Upon substituting our given value in the formula we will get,

$\frac{\frac{2\pi}{9}}{2\pi}=\frac{\frac{3\pi}{2}}{2\pi r}$

$\frac{2\pi}{18\pi}=\frac{3\pi}{4\pi r}$

$\frac{1}{9}=\frac{3}{4r}$

Cross multiplying we will get,

$4r=27$

$r=\frac{27}{4}$

Hence, the radius of our circle is 27/4 inches.

Since the circumference of circle is $2\pi r$ . Upon substituting $r=\frac{27}{4}$ we will get,

$2\pi r=2\pi* \frac{27}{4}=\frac{27\pi}{2}$

Therefore, circumference of our given circle will be $\frac{27\pi}{2}$ inches and option D is the correct choice.

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3 years ago

Suzy bought a 20 ounce

Mkey [24]

Answer:

Suzy got the best deal per once

Step-by-step explanation:

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2 years ago

Complete the following statement. The conditional probability of B given A can be found by _______. a. adding P(A) and P(B).b

Ksju [112]

Answer: Assuming that event A has occurred

Step-by-step explanation:

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3 years ago