MATHEMATICS HIGH SCHOOL

PLEASE HELP I"LL GIVE BRAINLEST The sum of a number n and 21 is 57. Is n equal to 25, 36, or 41?

25
41
36

Answers

Answer 1
Answer:

Answer:

36

Step-by-step explanation:

carry on lerning

I'm not sure but correct me if I'm wrong
Answer 2
Answer:

Answer:

36

Step-by-step explanation:

We know that n + 21 = 57 so n has a value that satisfies this equation, we can use algebra to support our thinking:

First I have laid out my equation:

1. n + 21 = 57

Then I subtracted 21 from 57 to isolate the n

2. n = 57 - 21

And the final value is 36

3. n = 36

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Write a linear factorization of the function.

f(x) = x^4 + 64x^2

Answers



we are given with the function f(x) = x^4 + 64x^2 and is asked to factor the function. The greatest common factor of the terms is x^2 . hence taking out x^2 from the set, the result is x2 *(x2 + 64).(x2 + 64) is equal to (x+8)^2 - 16x. hence the linear factorization is x^2 * ( (x+8)^2 - 16x)
Hello,

y=x^4+64x&
In IR, y=x^2(x^2+64).

In C, y=x²(x+8i)(x-8i)

Half of a number decreased by 8 is -3

Answers

Answer: 10

Step-by-step explanation: work your way backwords. first add 8 to get 5. Then half is 1/2, so you then multiplt by 2. hope this helped! sorry for short explanation

Arielle is building the wooden framework for the roof of a house. She needs the angle created by the vertical and horizontal boards of the frame to be a right angle. The height of the vertical board is 12 feet. The length of the horizontal board is 15 feet. The support beam that will connect the ends of the two boards measures 20 feet.

Answers

a² + b² = c²  ⇒ right triangle
a² + b² < c² ⇒ obtuse triangle
a² + b² > c² ⇒ acute triangle

a = 12 ft ; b = 15 ft ; c = 20 ft

12² + 15² = < > 20²
144 + 225 = < > 400
369 < 400 OBTUSE TRIANGLE

√369 = 19.21

20 - 19.21 = 0.79 

It is an obtuse triangle. About 0.8 foot needs to be removed from the 20-foot board to create a right triangle.

Answer:

It is b

Step-by-step explanation:

Which answer correctly uses the distributive property to simplify the expression 6+4(3x-2)+5

Answers

the circled ones are like terms so 6+(-8)+5 which is 3and then answer is 12x+3
hope this helps!:)

What is the common angle of triangle PQT and triangle RSQ? Can someone explain this for me ?

Answers

The angle on the lines sq and tq

A computer repair ball was $225.This included $75 for parts and $50 for each hour labor.Make sure to write and solve an equation.

Answers

Answer:

225 = 75 + 50x where x is the number of labor hours.

3 hours of labor (x=3)

Step-by-step explanation:

225 = 75 + 50x where x is the number of labor hours.

225 = 75 + 50x

225-75 = 50x

150 = 50x

150/50 = x

3 = x

So it took 3 hours of labor
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