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4 years ago

If (x2 – 4) = (x + 2) = x -2, which polynomial should fill in the blank below?

Mathematics

1 answer:

nalin [4]4 years ago

8 0

Step-by-step explanation:

use the identity a²-b²=(a-b)(a+b)

x²-4=(x-2)(x+2)

so the answer is x-2

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5 and (2,6) Pls answer

Gekata [30.6K]

Answer:

Step-by-step explanation:

I do not understand what you mean

or maybe you mean .

5 * (2,6)

(10,30)

5 0

3 years ago

Please help me, I’ll mark your answer as brainliest!

Darya [45]

Answer:

how this help |

Step-by-step explanation:

7 0

2 years ago

Two planes just took off from Charlotte NC. The first plane is traveling 1.5 times as fast as the second plane. After traveling

Ksju [112]

Givens

Slower plane

r = r

t = 2.5 hours

d = d

Faster Plane

r_faster = 1.5 * r

t = 2.5 hours

d1 = d + 127.5

The time is the same for both

t = d/r

d1/r1 = d/r

(d+ 127.5)/1.5r = d/r Multiply each side by r

(d + 127.5)/1.5 = d Multiply both sides by 1.5

d + 127.5 = 1.5d Subtract d from both sides.

127.5 = 1.5d - d

127.5 = 0.5d Divide by 0.5

127.5 / 0.5 = d

255 = d

Now you can go back and figure out the rates.

First find d1

d1 = d + 127.5

d1 = 255 + 127.5

d1 = 382.5

Rate of the slower plane

d = 255

t = 2.5 hours

r = d/t

r = 255/2.5

r = 102 miles per hour.

Faster plane

d1 = 382.5 miles

t = 2.5 hours

r1 = d/t

r1 = 382.5/2.5 = 153 miles per hour.

5 0

3 years ago

Consider the quadratic ax^2 + bx + c =0, where a,b, and c are rational numbers and the quadratic has two distinct zeroes. If one

Allisa [31]

what makes it irrational is the
$\sqrt{ {b}^{2} - ac } \:$
which does not change from one zero to the other. so if one root its irrational the other one also is. Answer A

8 0

3 years ago

What is four fifths plus eight ninths

Jobisdone [24]

4/5 + 8/9. First we have to find a common denominator for $\frac{4}{5}$ and $\frac{8}{9}$ . $\\ \frac{4*9}{5*9}= \frac{36}{45} \ and \ \frac{8*5}{9*5}= \frac{40}{45} \\$ Now we are going to add: $\frac{36}{45}+ \frac{40}{45}= \frac{76}{45}$ Make $\frac{76}{45}$ a mixed number: $\frac{76}{45}=1 \frac{31}{45}$ So the answer is $\boxed{1 \frac{31}{45}}$

6 0

3 years ago