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IrinaVladis [17]
2 years ago
14

What expression is equivalent to (9x^2 + 2x -7)(x - 4)

Mathematics
1 answer:
Dima020 [189]2 years ago
3 0

Answer: C

Step-by-step explanation:

We can use the expanding rule to get that one if the expressions is

(9x^2 + 2x - 7)x + (9x^2 + 2x - 7)(-4)

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Answer:

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3 years ago
Two numbers that add to -0.5 and multiply to 1
snow_lady [41]
X +(1/x) = -0.5 has no real solutions.

There are no real numbers that meet your requirements.

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The two complex numbers that meet your requirement are
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4 0
3 years ago
What is the energy of an object has due to it’s motion is called wat
Snowcat [4.5K]

Answer:

The correct answer is Kinetic Energy

Step-by-step explanation:

From conservation of energy a body at rest posses energy called Potential Energy under which it acquired at particular position of the body i.e at rest

Then as soon body starts moving with a certain speed "v" there is conservation of energy from Potential energy to Kinetic energy given as product of a half with mass of the body and square of its velocity.

In formular K.E= 1/2mv^2 where m stands for mass of the body and v is the speed of the body.

3 0
3 years ago
Read 2 more answers
What is the inverse of x-2
SCORPION-xisa [38]

Answer:

y = x + 2

Step-by-step explanation:

The expression x-2 is from the equation y = x - 2.

To find the inverse of the equation, <u>switch the "x" and "y" variables</u>, then solve  or <u>isolate for "y"</u>, meaning to separate it from the other numbers.

y = x - 2     Original equation

x = y - 2     Switched "x" and "y" variables

x + 2 = y - 2 + 2     Add 2 to both sides to cancel out '-2' on the side with "y"

x + 2 = y    

y = x + 2     Variable is on left side in standard formatting

To isolate, do the reverse operation for the number you want to get rid of.

On the side with "y", I wanted to get rid of '-2' so I could separate "y" from everything else. '+2' is the reverse operation for '-2'.

8 0
3 years ago
A right cylinder has a radius of 5 and height of 9. What is it’s surface area?
Art [367]

Answer:140pi units 2 squared

Step-by-step explanation:

8 0
3 years ago
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