MATHEMATICS HIGH SCHOOL

Factor completely x2 + 16.(x + 4)(x + 4)

(x + 4)(x − 4)

Prime

(x − 4)(x − 4)

Answers

Answer 1
Answer:

Answer:

The factors of x^2 + 16 are (x - 4i) and (x + 4i).

Step-by-step explanation:

That'd be x^2 + 16, not x2 + 16.  

First, an easier example:  x^2 - 16 factors into (x - 4)(x + 4).

Note how (-4)(4) = -16.

The corresponding factors of x^2 + 16 are (x - 4i) and (x + 4i).

We can check this result through multiplication:  (x - 4i)(x + 4i) = x^2 - 4ix + 4ix - 16(-1), or x^2 + 16.
Answer 2
Answer:

Answer:

Option C: Prime

Step-by-step explanation:

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The American novel began to develop in the eighteenth century. a. True b. False
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Please help asap 18 pts

Answers

-8-11 = -19

The vertical lines are for the absolute value, which is always a positive number.

The answer would become 19.


The answer is D.

Hi,

-8 - 11 = -19

The 2 lines at the beginning and the end equal the positive value of the number.

-19 ------> 19

Answer:

19

What is the solution to the following equation?
(5x-2)^2=10

Answers

take the square root of both sides to get rid of parenthasees, remember to get the positive and negative root
5x-2=+/-√10
add 2 to both sides
5x=2+/-√10
divide by 5
x=(2+/- √(10) )/(y)

x= (2+ √(10) )/(y) or (2- √(10) )/(y)

aprox
x=1.03246 or -0.232456

The formula for height, in feet of a projectile under the influence of gravity is given by h=-16t^2+vt+s, where t is the time in seconds, v is the upward velocity at the start, and s is the starting height. Marvin throws a baseball straight up into the air at 70 feet per second. The ball leaves his hand at a height of 5 feet. When does the ball reach a height of 75 feet?

Answers

Answer:

1.55s

Step-by-step explanation:

The height equation of the projectile is given as;

h = -16t^2 + vt + s .......1

where;

t is the time in seconds,

v is the upward velocity at the start,

s is the starting height.

Given;

v = 70 ft/s

s = 5 ft

Substituting the values equation 1 becomes;

h = -16t^2 + 70t + 5

For the ball to reach 75 ft, h = 0

75 = -16t^2 + 70t + 5

-16t^2 + 70t + 5 - 75 = 0

-16t^2 + 70t - 70 = 0

solving the quadratic equation;

Time t = 2.83 s and t = 1.55s

Therefore, the ball will first reach 75 ft after 1.55 seconds.

A(x)=3^2If 81 came out, what was dropped in?
I have rewritten the problem to 3^x=81 but do not know how to solve it.

Answers

It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4 
exponents have to be the same, so
x=4
That's mean that A(4) = 81
A(x)=3^x=81\n3^x=81\n3^x=3^4\nx=4

Screen measures 30 cm wide n 22 cm high what is the diagonal measure of the screen

Answers

I think you'd use the pythagoran theorem for this (a squared + b squared = c squared). So 30 squared plus 22 squared equals the diagonal measure squared. This is 900 + 484 = c squared. That's 1384. The square root of that is 37.

Wha t is the world largest punctuation mark

Answers


That's the period at the end of the sentence written in
million-point font across the Sahara.

(It's an ad placed there by McDonald's to attract the
18-30 alien demographic.)
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