MATHEMATICS HIGH SCHOOL

Solve for x. Round to the nearest tenth of a degree, if necessary.
Solve for x. Round to the nearest tenth of a - 1

Answers

Answer 1
Answer:

Sin (angle) = opposite leg / hypotenuse

Sin(x) = 2.1/4

x = arcsin(21./4)

x = 31.7 degrees

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What is the domain of f(x)=3x-2?

Answers

Answer:

the answer is: {x|x>0}

Simplify the product.2n (n² + 3n + 4)
a. 2n^3 + 6n² + 8n
b. 2n^3 + 3n + 4
c. 2n^3 + 6n + 8
d. n² + 5n + 4

Answers

2n(n^2+3n+4)= 
2n^3+6n^2+8n

Answer is A
2n (n² + 3n + 4)
2n^3 + 6n^2 + 8n
It's A.

What is the angular velocity of a 6–foot pendulum that takes 3 seconds to complete an arc of 14.13 feet?

Answers

First find the central angle A in degree.Perimeter circle 2Pi*R --> 360 degArc A = 14.13 --> x deg(360*14.13)/2Pi*R = 5086.8/37.68 = 135 degThe pendulum rotates 135 deg in 3 sec. Then, the angular velocity is : 135/3 = 45 deg/sec.

Hope this helps!

A polygon with ten sides is called a _____. a. dodecagon
b. pentagon
c. decagon
d. nonagon

Answers

the answer is decagon
The correct answer is C. Decagon

What is the first step in solving the quadratic equation x2-40=0

Answers

Answer:

Hello my friend! The first step is to isolate the x and the 40 like this: x2 = 40.

Step-by-step explanation:

After you do that, you can perform the inverse operation of the x2, wich is the sqrt of 40. This way, you will have x=sqrt40 .   X~=6.32

Answer:

The answer is B

Step-by-step explanation:

Please help solve this, I solved it on my own but I think my calculations are wrong. here is the problem, b-(b+a×4c÷4); use; a=-6, b=1, and c=2?​

Answers

Hi there! Hopefully this helps!

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Answer: 12

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First we need to substitute the value of the variable into the expression and simplify.

b-(b+a×4c÷4) = 1 - (1 + -6 × 4(2) ÷ 4).

Now we need to solve 1 - (1 + -6 × 4(2) ÷ 4).

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1 - (1 + -6 × 4(2) ÷ 4)

|

|  First, we cancel out 4 and 4.

\/

1 - (1 - 6 × 2)

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Next, we multiply -6 and 2 to get -12.

1 - (1 - 12)

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Then we subtract 12 from 1 to get -11.

1 - (-11)

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The opposite of -11 is 11.

1 + 11.

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Add 1 and 11 to get, you guessed it, 12!

Answer:

Answer: 12

Hope this helps
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