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2 years ago

Perform the operation. (-x^2 – 1) – (-2x^2 – 4)

Mathematics

1 answer:

ivolga24 [154]2 years ago

6 0

Answer:

Okay!

Step-by-step explanation:

I have simplified the operation, and I got x^2 + 3.

If you wanted me to evaluate, the answer is still x^2 + 3.

If you wanted me to subtract then the answer is again, x^2 + 3.

Basically the answer is x^2 + 3.

Have a good day!

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A = x. b What is b in the terms of a and x

liq [111]

Step-by-step explanation:

i think its

b=x

a

hope it help u...

8 0

2 years ago

Help?

MAXImum [283]

Answer:

$32.39

Step-by-step explanation:

She has a 15-gallon tank and it has 1/5 a tank of gas left (so about 3/15)

Because she needs to refill it and already has 1/5, she'll only need to pay for 4/5 a tank of gas (12/15).

So the equation should be 12 times $2.699.

12 × 2.699 = 32.388

Then, round to the nearest cent.

32.388 = $32.39

Hope this helped !

5 0

1 year ago

Solve for x. 9x - 18 = 7x + 30

viva [34]

Answer: x = 24

Step-by-step explanation:

9x - 18 = 7x + 30

9x - 7x = 30 + 18

2x = 48

x = 48/2 = 24

3 0

2 years ago

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. Each night

11Alexandr11 [23.1K]

Answer:

tn = 2097152 pennies
tn = 20971.52 dollars.

Step-by-step explanation:

A surprisingly large amount of money.

The question is "Does the amount of money just double or do the previous amounts add to the present amount?"

I think it just doubles. Not only that, but she can't spend any of it until night 22 is reached.

tn = a*2^(n - 1)
a = 1 She starts with 1 penny.
n = 22
tn = 1*2^(22 - 1)
tn = 1*2^21
tn = 2097152 pennies
tn = 20971.52 dollars.

8 0

3 years ago

Your friend has one week to pay the $26 fine for a parking ticket. After that, the fine Increases $7 each week.

Yanka [14]

I don’t know what exactly you are trying to ask? But this equation would be an example of exponential growth.

7 0

2 years ago