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3 years ago

20. f(x) = -9x - 2 for x = 7

Mathematics

1 answer:

inn [45]3 years ago

7 0

Solve this by plugging in values into x and then perform the operation.

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What is h(-4) for h(x) =(x-2)^2 +3x

PSYCHO15rus [73]

$(- 4 - 2)^{2} + 3( - 4) \\ = ( - 6)^{2} + ( - 12) \\ = 36 - 12 \\ = 24$
The answer is 24

7 0

3 years ago

5d2-50d+125 = <br> Fully factor each expression

Ede4ka [16]

First, let's start off by simplifying as much as possible before factoring.

5d^2 - 50d + 125

We can divide all the numbers by 5 in order to simplify it:

5(d^2 - 10d + 25)

Now all we need to do is factor.
Since -5*-5 = 25 and -5 - 5 = -10, we can use this to factor:

5(d - 5)(d - 5)
Or
5(d - 5)^2

8 0

3 years ago

Two of the steps in the derivation of the quadratic formula are shown below.

Helen [10]

Answer:

taking the square root of both sides of the equation

Step-by-step explanation:

I didnt do it sorry

7 0

4 years ago

Read 2 more answers

What is the rate of change of the function y = 6x-1y

Temka [501]

Answer:

Step-by-step explanation:

dy/dx = 6dx/dx -1dy/dx

dy/dx= 6 - 1dy/dx

2dy/dx= 6

dy/dx = 3

3 0

3 years ago

Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxi

Semenov [28]

Answer:

Option B - $=8.4672\times 10^{13}$

Step-by-step explanation:

Given : Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approximately 5,880,000,000,000 miles.Suppose a star is 14.4 light years from earth.

To find : In scientific notation, how many miles away a star is from earth?

Solution :

One light-year is the distance that light can travel in one year is = 5,880,000,000,000 miles.

In scientific notation, $5.88\times 10^{12}$ miles.

In 14.4 lights year the distance is $=14.4\times5.88\times 10^{12}$

In 14.4 lights year the distance is $=84.672\times 10^{12}$

or $=8.4672\times 10^{13}$

Therefore, Option B is correct.

5 0

3 years ago