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Marysya12 [62]
3 years ago
13

(8a^3-3b^2)-(-a^3+b^2)

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer:

\displaystyle \boxed{-4b^2 + 9a^3}

Step-by-step explanation:

To avoid confusion, distribute that negative:

\displaystyle 9a^3 - 4b^2

** The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

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Alliya spent $6.70 on 12 pencils at the store. Her cost included $0.46 sales tax. How much did each pencil cost before the sales
Kaylis [27]
52 cents would be the answer.

Hope this helped. Would you like me to explain how I got it?
6 0
3 years ago
Read 2 more answers
One soda and one taco costs $2.1. Two sodas and three tacos cost $5.15. Find the cost of a soda and a taco. Whoever answer this
DaniilM [7]

Answer:

Soda costs $1.15 and taco costs $0.95.

Step-by-step explanation:

x + y = 2.1

2x + 3y = 5.15

Multiply the first equation by -2 to eliminate x

-2x - 2y = -4.2

2x + 3y = 5.15

Add

          y = 0.95

Find x with the original first equation

x + y = 2.1

x + 0.95 = 2.1

x = 2.1 - 0.95

x = 1.15

hope it helps :)

5 0
3 years ago
A jar contains 0.75 liter of blackberry juice and 0.60 liter of blueberry juice. Patrick poured 0.25 liter of guava juice into t
mixas84 [53]

Answer:

1.40 litres; order of operations

Step-by-step explanation:

Part A:

First, write it out in the full form.

#1 (.75 litres of blackberry juice + .60 litres of blueberry juice + .25 litres of guava juice) - .20 litres drank = 1.4 litres of juice remaining in the jar

Part B:

Removing the wordy descriptions from the expression, we get the following:

#2 (.75 + .60 +.25) - .20

or, by adding the numbers in the parentheses first:

#3 (1.60) - .20 = 1.40

#4 1.40 litres of juice left in the jar

The order of operations was used in moving from step #2 to step #3, as operations within the parentheses were conducted before subtracting the .20 litres of juice which were drank.

8 0
3 years ago
(-5/8)×(2/3) what's this answer ?
shutvik [7]

Answer:

Q = -5/8 * 2/3

Multiply both numbers like your multiplying actual numbers.

<em><u>(-5 * 2)/(8*3)</u></em>

<h2><em><u></u></em></h2><h2><em><u>A = -10/24 = -5/12</u></em></h2><h2><em><u>Hope this helps</u></em></h2>
6 0
3 years ago
How to expand this logarithm?
Zarrin [17]
There is a division symbol, division is subtracted. Are you sure you have the problem stated clearly?
<span>ln( \frac{-5m-3}{ \sqrt{-4m-7} } )\\  \\ ln(-5m-3) - ln( (-4m-7)^{1/2} ) \\ \\ Power Rule  \\  \\ ln(-5m-3) -  \frac{1}{2} ln(-4m-7)

</span>
5 0
4 years ago
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