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3 years ago

Write the English phrase as an algebraic expression. Then, simplify the expression. Let x represent the number,

Mathematics

1 answer:

weqwewe [10]3 years ago

4 0

Answer:

3x - 2x

Step-by-step explanation:

The difference - the subtraction symbol

The product of three and a number - 3 multiplied by x (basically says what's the solution to three times x)

Two times the number - 2 times x

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What is the surface area of the cube below?

denis-greek [22]

Answer:

150 m.

Step-by-step explanation:

SA= 6xa²

A cube has six sides so you factor that in. What you do is square the length of one of the sides and then multiply by how many sides there are.

5^2=25

25x6=150.

4 0

4 years ago

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Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it.

lilavasa [31]

The answer is C hoped this helped

7 0

3 years ago

Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles. (5 points)

DiKsa [7]

Law od sines :

b / SenB = c / SenC

25 / Sen40 = 26 / SenC

25.SenC/Sen40 = 26

25.SenC = 26.Sen40

SenC = 26.Sen40 / 25

SenC = 0,668499114

Applying ArcSen on both the sides:

We have:

ArcSen(SenC) = ArcSen(0,668499114)

C = 41,95°

8 0

3 years ago

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PLEASEEEEEEEEEEEEE ANSWER THIS WILL MARK YOU BRAINLEST What is the solution ?

Mars2501 [29]

-3/4x + 2 < -7

-2 3/4x <-7

-2.75x < -7

C. x < 12

Do let me know if it is incorrect.

3 0

3 years ago

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Which of the following is the best estimate of the measure of the angle the skateboard makes with the ground ?

Llana [10]

Answer:

Correct choice: C. 74.5

Step-by-step explanation:

Trigonometric Ratios

In every right triangle (those who have an internal angle of 90°), the six trigonometric ratios are valid. They relate the other internal angles with the lengths of the triangle.

The skateboard, the wall, and the ground form a right triangle. We need to find the measure of the angle formed by the skateboard with the ground. Let's call it β. In a right triangle, the cosine of an angle is defined as

$\displaystyle \cos\beta=\frac{\text{adjacent leg}}{\text{hypotenuse}}$

The adjacent leg of β is the side with length 8 in, and the hypotenuse is the length of the skateboard, 30 in, thus:

$\displaystyle \cos\beta=\frac{8}{30}}=0.267$

Using a digital calculator we find:

$\beta=\cos^{-1}(0.267)$

$\beta=74.5^\circ$

Correct choice: C. 74.5

5 0

4 years ago