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Ahat [919]
3 years ago
14

Multiply 5(x^2-2y)^3

Mathematics
1 answer:
aleksklad [387]3 years ago
8 0

Answer:

5x^6 -30x^4 y + 60 x^ y^2 -40y^3

Step-by-step explanation:

psssss.... Use Photomath it helps you answer step by step.

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A newly launched clothing line is rapidly increasing in popularity. Every month 20% more items of clothing are sold. If 70,800 i
prohojiy [21]

Answer:

<u>212,400 items</u> were sold in 10 months.

Step-by-step explanation:

Given:

Items sold this month = 70,800

Percent Increase in every month = 20%

We need to find number of items sold in coming 10 months.

Solution:

First we will find number of items increase in each month.

number of items increase in each month can be calculated by Percent Increase in every month multiplied by Items sold this month and the divided by 100.

number of items increase in each month = \frac{20}{100} \times 70800 = 14,160

Now we will find number of item sold in 10 months.

number of item sold in 10 months is equal to sum of Items sold this month and number of items increase in each month multiplied by 10.

framing in equation form we get;

number of item sold in 10 months = 70800+10\times 14160 = 212,400

Hence <u>212,400 items</u> were sold in 10 months.

8 0
4 years ago
Two trains leave towns 1490 kilometers apart at the same time and travel toward each other. One train travels 20 km/h slower tha
Fynjy0 [20]

Answer:

  rate 1. 50 2. 56

Step-by-step explanation:

if you graph them all together.

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Ctt%286x4%E2%88%922x3%20%2B7x2%20%E2%88%92x%29%20%2B%20%28%207x4%2B%202x3%E2%88%925x%20%2
Vadim26 [7]

\qquad\qquad\huge\underline{{\sf Answer}}

Let's solve ~

\qquad \tt \dashrightarrow \:\tt(6x {}^{4} −2x {}^{3}  +7x {}^{2} −x) + ( 7x {}^{4} + 2x {}^{3} −5x + 7)

\qquad \tt \dashrightarrow \:\tt6x {}^{4} −2x {}^{3}  +7x {}^{2} −x +  7x {}^{4} + 2x {}^{3} −5x + 7

Now, move all like terms aside :

\qquad \tt \dashrightarrow \:6 {x}^{4}  + 7 {}x^{4}  - 2 {x}^{3}  + 2 {x}^{3}  + 7 {x}^{2}  - x - 5x + 7

Add the like terms ~

\qquad \tt \dashrightarrow \:13 {}x^{4}   + 7 {x}^{2}   + 6x + 7

3 0
2 years ago
Read 2 more answers
mollie jump rope is 6 1/3 feet long . gallie jump rope is 4 2/3 long. how much longer is mollie jump rope
kupik [55]
6 1/3 - 4 2/3 is 1 2/3 so... 1 2/3 feet longer
5 0
4 years ago
Read 2 more answers
Help please only if you know!!!
gulaghasi [49]
#5. looks fine.
The roots are { +√(6) , -√(6) , -2, 2 }

#6. 12x³ + 26x² - 10x
factor out 2x  
2x(6x² + 13x - 5) = 0
one root is zero

factor for other two roots, only 5×1 = 5
(3x-1)(2x+5)
3x - 1 = 0
3x = 1
x = 1/3

2x + 5 = 0
2x = -5
x = -5/2

roots are { 0, 1/3, -5/2 }


EDIT** forgot #7

#7. 125x³ + 8 = 0

125x³ = -8
x³ = -8/125
x = ∛(-8/125)

root of a fraction is the root of the numerator and denominator, negative can be on either numerator or denominator. overall fraction should be negative to subtract from the 8 to give zero.

∛(-8) = +/- 2
∛(125) = 5

root { -2/5 }

7 0
4 years ago
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