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blsea [12.9K]
3 years ago
7

Which expression is equivalent to ?

Mathematics
1 answer:
kozerog [31]3 years ago
7 0

Answer:

I think the answer would therefore be F.

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The function f is defined by f(x)=-x2+2x-7. What is the value of f(-3)?
Helen [10]

Answer:

Option A f(-3)=-22

Step-by-step explanation:

we have

f(x)=-x^{2}+2x-7

we know that

f(-3) is the value of f(x) when the value of x is equal to -3

so

For x=-3

substitute the value of x=-3 in the equation

f(-3)=-(-3)^{2}+2(-3)-7

f(-3)=-9-6-7

f(-3)=-22

6 0
4 years ago
A customer bought a car and paid $1,080 in sales tax.The rate is 6%?
Ghella [55]

The price of car is $18000

Step-by-step explanation:

Given

Sales tax on car = $1080

Rate = 6%

Let x be the price of the car

We know that as the rate of sale tax is 6%, 6% of x is 1080

Using mathematical notation

0.06x = 1080

Dividing both sides by 0.06

\frac{0.06x}{0.06} = \frac{1080}{0.06}\\\\x = 18000

Hence,

The price of car is $18000

Keywords: Rate of tax, Percentage

Learn more about percentae at:

  • brainly.com/question/11286417
  • brainly.com/question/12884373

#LearnwithBrainly

7 0
3 years ago
8y-3=6y 17 step by step to solve this equation.
antiseptic1488 [7]


8y-3=6y+17

add 3 on both sides

8y=6y+20

-6y on both sides

2y=20

divide by 2 on both sides

y=10


4 0
3 years ago
Whats is the mean in -10 + -10 + 6 + 5 + -1 + -1 ???? PLZ HELP
Black_prince [1.1K]
-11 is the correct answer
6 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point -4, —8) and has a<br> slope of 4?
HACTEHA [7]

Answer:

y = 4x + 8

Step-by-step explanation:

A linear formula always follows by y = mx + c, where m is the gradient and c is the y-intercept or constant.

Since you know that the slope is 4, all you need to do is find the y-intercept (constant)

y = 4x + c

Sub in the points (-4, -8)

-8 = 4(-4) + c

-8 + 16 = c

c = 8

Hence, y = 4x + 8

5 0
4 years ago
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