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valentina_108 [34]
3 years ago
10

Find (f-g)(x) if f(x)=2x^2+1 and g(x)=x^2-7 A. x^2+8 B. x^2-6 C. 3x^2-6 D. 3x^2+8

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0

Answer:

C. 3x^2-6

Step-by-step explanation:

I just took the test.

(Apex)

strojnjashka [21]3 years ago
6 0

Answer:

A

Step-by-step explanation:

To find (f-g)(x), take gx) and subtract it from f(x).

f(x) = 2x^2+1

and

g(x) = x^2-7

so

(f-g)(x) = 2x^2+1 - (x^2 -7)\\(f-g)(x) = 2x^2+1-x^2+7\\(f-g)(x) = x^2+8

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Find the equation of the line that goes through (-8,11) and is perpendicular to x= - 15. Write the equation in the form x = a, y
galben [10]

Answer:

y=11

Step-by-step explanation:

Hi there!

We want to find the equation of the line that passes through the point (-8, 11) and is perpendicular to x=-15

If a line is perpendicular to another line, it means that the slopes of those lines are negative and reciprocal; in other words, the product of the slopes is equal to -1

The line x=-15 has an undefined slope, which we can represent as 1/0, which is also undefined.

To find the slope of the line perpendicular to x=-15, we can use this equation (m is the slope):

m_1*m_2=-1

m_1 in this instance would be 1/0, so we can substitute it into the equation:

\frac{1}{0} *m_2=-1

Multiply both sides by 0

m_2=0

So the slope of the new line is 0

We can substitute it into the equation y=mx+b, where m is the slope and b is the y intercept:

y=0x+b

Now we need to find b:

Since the equation passes through the point (-8,11), we can use its values to solve for b.

Substitute -8 as x and 11 as y:

11=0(-8)+b

Multiply

11=0+b, or 11=b

So substitute into the equation:

y=0x+11

We can also write the equation as y=11

Hope this helps!

5 0
3 years ago
Use the diagram below to answer the question.Identify a segment parallel to HG.
svetlana [45]
Its a hexagon i thnk
3 0
4 years ago
Read 2 more answers
4. What is the solution of the system of equations?<br> y=-2x+5<br> y=-2x+20
Norma-Jean [14]

The system of equation, y = -2x + 5 and y = -2x + 20, have no solution.

<h3>How to Find the Solution of a System of Equations?</h3>

The solution to a system of equations is the ordered pair of x and y that makes both equations true.

Given the system of equations,

y = -2x + 5 --> equation 1

y = -2x + 20 --> equation 2

Subtract to eliminate variable "y"

0 = 0 + 25

0 = 25 [this is not true]

Therefore, no solution exist for the system of equations.

Thus, we can conclude that, the system of equation, y = -2x + 5 and y = -2x + 20, have no solution.

Learn more about system of equations on:

brainly.com/question/14323743

#SPJ1

3 0
2 years ago
Suppose you roll two dice. find the probability of rolling a sum of 11.​
stiv31 [10]

Answer:

1/18

Step-by-step explanation:

There are 36 different possible combinations. There are only two ways of rolling a sum of 11.

2/36 = 1/18

5 0
3 years ago
A car manufacturer wants to analyze the safety features of 7 different car models by comparing each model with every other model
klio [65]

Answer:

28,000

Step-by-step explanation:

multiply 7 cars with 4,000

8 0
3 years ago
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