Which of the following is a factor of the polynomial 2x^2 – 3x – 5 ?F. x – 1
G. 2x – 3
H. 2x – 5
J. 2x + 5
K. 3x + 5

Answers

Answer 1

Answer: $2x^2 - 3x - 5=\n 2x^2+2x-5x-5=\n 2x(x+1)-5(x+1)=\n (2x-5)(x+1)$

H

Answer 2

Answer: H is a factor.

(2x-5)(x+1)

Solve and simplify

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What does it mean for a figure to be 3-D

Answers

We are able to see the "entire" figure and not just one side or a "flat" side.

It's 3 dimensional. It means that it isn't flat. Like if you look at a person, they are thre dimensional. But if you look at a picture or a 2d movie, it's flat.

The sum of a number and 3 is equal to 5 less than double that number. What is the number?

Answers

Answer:

sum of a number 2 plus3 is equal to 5

and less than its double 2×2=4 so the answer is 2

Answer:

when ever it says a number its a variable so it would look like this

Step-by-step explanation:

X+3=5=2x2=4

How do you solve and check it
-5 - 5y =0
y=8x

Answers

-5-5y=0
y=8x

substitute the value of y
-5-5(8x)=0
-5-40x=0
add 5 to both sides.
-40x=5
divide both sides by -40
x=-5/40
simplify gcf=5
x=-1/8

checking:
Y=8x
y=8(-1/8)
y=-1
Substitute it to the 1st equation
-5-5(-1)=0
-5+5=0
0=0

38 is what percent of 62?

Answers

38 = 62x
x = 38/62 = 19/31 = .6129...*100 = 61.29%

In order to find this, you divide 38/62. when you do this you get .6129. to make it a percent simply move the decimal to the right two places, giving us 61.29%. in most cases you will only need the one number after the decimal, but it depends on the question.

ASAPPP 80 POINTSS How many times as large as the radius of a hydrogen atom are the radii of the mercury and the radii of the uranium atoms?Show your work

Answers

Answer:

divide 1.5x10^-10 by 2.5x10^-11 which is 6 meaning the Mercury atom is 6 times larger than a hydrogen atom.

Step-by-step explanation:

im sure thats right !

Answer:how many times as large is the approximite radius of a mercury atom, 1.50*10^-10 meter, as the approximite radius of a hydrogen atom, 2.5*10^-11 meter?

Step-by-step explanation:

Someone please help!!