What is the following sum ?

Answers

Answer 1

Answer: Answer: 4th option

Explanation:

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Benito spent $1837 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for gasoline. If he drove 7600 miles, what was the average cost of the gasoline per mile?

Answers

I answered this question before. It lacked some data needed to solve this problem.

Operating Expenses
Cost Insurance $972
Registration $114
Maintenance $105

1837 - 972 - 114 - 105 = 646 cost of gasoline

646 / 7600 = 0.085 or 8.5 centavos

Answer:

8.5

Step-by-step explanation:

Write the equation for f(x)=x^2But flipped over the x-axis, shifted 4 units down, and shifted 1 unit to the left.
Will give brainliest for best answer :) tysm! <3

Answers

Answer:

$f^\prime(x)=-(x+1)^2-4$

Step-by-step explanation:

We have the function:

$f(x)=x^2$

And we want to write its equation after being: 1) Flipped over the x-axis, 2) shifted 4 units down, and 3) shifted 1 unit to the left.

To denote a flip over the x-axis, we multiply the function by -1. Hence:

$f^\prime(x)=-x^2$

Is our function flipped over the x-axis.

To shift n units vertically, we simply add n to our function.

Since we are going 4 units downwards, we will add -4 to our function. Hence:

$f^\prime(x)=-x^2-4$

Finally, to shift n units horizontally, we substitute our variable $x$ for $(x-n)$ .

Since we are shifting 1 unit to the left, n=-1. Hence, we will substitute $x$ for $(x+1)$ . Therefore:

$f^\prime(x)=-(x+1)^2-4$

So, our final function is:

$f^\prime(x)=-(x+1)^2-4$

Look at the table. Make a conjecture about the sum of the first 25 positive even numbers.

Answers

I stared at the table, contemplating the fake wood grain, while mulling
this over in my head. After mulling, my conjecture is: 650 .

What 2 numbers add up to get 17 and multiply to get -200

Answers

There is no fixed equation when I arrived at these numbers.

I just did trial and error. I came up with 25 and -8 as the numbers.

200 ÷ 25 = 8 ⇒ the sum of 17 depends on the signs of each numbers.

-8 x 25 = -200

-8 + 25 = 17

For which equation is m = 12 not the solution?15 - m = 3
m + 8 = 20
m - 3 = 15
2 + m = 14

Answers

Hello,

Answer C for

m-3=15
==>m=15+3
==>m=18

Solve 2/3 (6x+30)=x+5(x+4)–2x

Answers

expand the left hand side of the equation first. this is easy since two thirds of six is four and two thirds or thirty is twenty.
4x + 20 = x + 5(x+4) - 2x
expand the right hand side :
4x + 20 = x + 5x + 20 -2x

Collect up all the x terms on the right hand side: 4x + 20 = x + 5x - 2x + 20
So the total number of "x" 's on the right hand side is 1 + 5 -2 = 4
4x + 20 = 4x + 20
Hey ! look at that ! you've got the same thing on both sides of the equation ! this means that it doesn't matter what value x is, the equation works for ALL values of x . ( ANSWER)

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