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Andrew [12]
3 years ago
14

PLEASE ANSWER FAST ILL GIVE BRAINLIEST AND EXPLAI NTOO PLEASE

Mathematics
2 answers:
icang [17]3 years ago
8 0

Answer:

x3 + 2x^2 - 15

Step-by-step explanation:

So, we get:

= x * x^2 - x * 3x +  5 * x^2 - 5 * 3x

= x^3 - 3x^2 + 5x^2 - 15x

= x^3 + 2x^2 - 15

max2010maxim [7]3 years ago
4 0
First start with x and multiply it by each variable in the second parentheses. So x^2 * x = x^3 and x * -3x = -3x^2. Do the same but with 5 next. 5 * x^2 = 5x^2 and 5 * - 3x = -15x. Then add them all together to get x^3 +2x^2 - 15x.
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Ames recorded the distance he ran each day:
tensa zangetsu [6.8K]

Answer:

1.627 miles

Step-by-step explanation:

longest distance - 2.55 miles

shortest distance - 0.923 miles

difference = 2.55-0.923

=1.627 miles

5 0
3 years ago
Simplify and express the answer as a decimal. 3(2.7+5)−2 Enter your answer in the box.
Volgvan
First, add 2.7 and 5 to get 7.7. Then, multiply 7.7 and 3 to get 23.1. Finally, subtract 2 from 23.1.

If you're distributing, then multiply 3 by 2.7 and 5. Then, add and subtract the sum by 2.

Hope this helped!
5 0
3 years ago
A bowling ball has a diameter of 8in. Find it’s volume. Round answer to two decimal places
taurus [48]

Answer:

V = 27.16inch^3

Step-by-step explanation:

Find the radius = 8/2 = 4

V=4/3 π r3

V=4/3 π * 4 x 4 x 4

V=4/3 π * 64

V = 4/3 π = 0.42441318157 = π +1/3  Take this and multiply to 64

0.42441318157 x 64 = 27.1624436205 = 27.162444

V = 27.16inch^3

8 0
4 years ago
Read 2 more answers
Mrs. Dominguez asked her students to plot the number of books they read over the summer.
Mnenie [13.5K]

Count the dots located on the blot labeled at 2.

There are 6 dots, which mean 6 students read 2 books.

The answer is 6.

5 0
4 years ago
Read 2 more answers
Please help! Math problem attached below.
Arturiano [62]
<h3>Answer: D) $16.77</h3>

=====================================================

Explanation:

The meter goes from 9854 to 0023. You can think of 0023 as 10023 (even though the meter only has 4 digits, so it rolls over to start over again).

So,

10023 - 9854 = 169

This means 169 kw hours of electricity are used for the month of December.

The first 100 kw hours costs $4.35

There are 169-100 = 69 kw hours left, and they cost $0.18 each, so we add on 69*0.18 = 12.42 getting 4.35 + 12.42 = 16.77

4 0
4 years ago
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