3 years ago

Simplify the expression 8x² + x - 5 + (2x² - 9x + 13) *

Mathematics

1 answer:

Elena-2011 [213]3 years ago

7 0

Answer: 10x^2-8x+8

I have explained detaled answers below in the link.

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Nick opens a savings account with $50. Each week after, he deposits $15. He wants to save $500. Write and solve equation to find

Alborosie

Answer:

Equation: 500 = 50 + 15x

Step-by-step explanation:

where x is the number of weeks Nick will have to deposit $15 in order to accumulate $500, given that the first week he deposited $50.

500 = 50 + 15x

450 = 15x

x = 30

Now Nick will have to deposit $15 each week for 30 weeks. This is in addition to the $50 deposit he made week 1. So it will take him 31 total deposits to accumulate the $500.

6 0

2 years ago

The area of a square is 16 cm2. The square is the base of a cube.

choli [55]

the answer is 96 cm ^ 2

16 × 6 =96

3 0

3 years ago

Put the following portions in order from least to greatest 30% 1/5 75% 5/6

sertanlavr [38]

Answer:

1/5,30%,75%,5/6

Step-by-step explanation:

first turn all of them in to decimals:

1/5=0.20

30%=0.30

75%=0.75

5/6=0.83

then put the decimals in order from least to greatest

done!

8 0

2 years ago

PLEASE HELP!!!!!!!

andre [41]

Answer:

$\frac{4^{21}}{5^6}$

Step-by-step explanation:

$\left(\frac{4^7}{5^2}\right)^3$

$=\frac{\left(4^7\right)^3}{\left(5^2\right)^3}$

$\left(4^7\right)^3$

$=4^{21}$

$=\frac{4^{21}}{\left(5^2\right)^3}$

$\left(5^2\right)^3$

$5^6$

$=\frac{4^{21}}{5^6}$

6 0

2 years ago

2x - 5x = what does it equal <br><br> Helppppp

erma4kov [3.2K]

Answer:

-3x hope this helps you good luck

6 0

3 years ago

Read 2 more answers