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3 years ago

X=3 calculate the value of x cubed -x

1 answer:

6 0

X = 3

$x^3 - x = 3^3 - 3\\\\= (3\times 3\times 3) - 3\\\\=27 - 3\\\\=\boxed{\bf{24}}$

When x = 3, x cubed - x equals to 24.

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Which of the following is a rational number

denis-greek [22]

Answer:

so it will be -55

Step-by-step explanation:

$\sqrt{83}$ is not a rational number

-55 is a rational number

$\sqrt{96}$ is not a rational number

π is not rational number

Let me know if i'm right :(

5 0

3 years ago

1. Do you the following side lengths form a right triangle?2. Which measurement is closest to the value of X in centimeters?

koban [17]

Answer:

Part 1:

Yes, the side lengths form a right triangle.

Part 2:

Option d 37.1 cm

Explanation:

We need to use the pythagorean theorem.

In part 1, if the 3 side lengths are a right triangle, then, they must verify:

$7.5^2=4.5^2+6^2$

By the theorem. Then:

$\begin{gathered} 7.5^2=56.25 \\ 4.5^2+6^2=20.25+36=56.25 \end{gathered}$

They're equal, then the lengths correspond to a right triangle.

For part 2, we need to use again the theorem. In this case:

$\begin{gathered} 12^2+x^2=39^2 \\ x=\sqrt{1521-144} \\ x=\sqrt{1377} \\ x\approx37.1cm \end{gathered}$

6 0

1 year ago

Which transformations are needed to change the parent some function to the sine function below?

Harrizon [31]

Beginning with the function y = sin x, which would have range from -1 to 1 and period of 2pi:
Vertical compression of 1/2 compresses the range from -1/2 to 1/2
Phase shift of pi/2 to the left
Horizontal stretch to a period of 4pi, as the crests are at -4pi, 0, 4pi
Vertical shift of 1 unit up moves the range to 1/2 to 3/2
So the first choice looks like a good answer.

7 0

3 years ago

Read 2 more answers

Find the value of x

anygoal [31]

Answer:

Step-by-step explanation:

As per circle theorem rule, ∠GDE is twice than ∠GFE

10x +94 = 2 × (x+51)

10x + 94 = 2x + 102

8x = 8

x = 1

∠GDE= 10x+94° = 104°

∠GFE= x + 51° = 52°

3 0

3 years ago

Please help i'm stuck on geometry

Elenna [48]

Which of the models are the questions referring to?

4 0

3 years ago