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3 years ago

Simplify: 5x^3 + 4x^3

Mathematics

2 answers:

Digiron [165]3 years ago

8 0

Answer:

9x^3

Step-by-step explanation:

5x^3 + 4x^3

Since these are like terms

x^3 (5+4)

9x^3

Firdavs [7]3 years ago

7 0

Answer:

$9x^3$

Step-by-step explanation:

$5x^3 + 4x^3$

Add the like terms.

$=9x^3$

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3 years ago

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3 years ago

karen is planning to drive 3105 miles on a road if she drive 345 miles a day how many days will it take to complete this trip

Maurinko [17]

Answer:

9 days!

Step-by-step explanation:

Take the number of miles shes planning on driving (3105) and divide it by the number of miles a day (345) and you would get 9

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3 years ago

Pleases someone explain

Nikolay [14]

When you have a negative exponent, you move the base with the negative exponent to the other side of the fraction to make the exponent positive.

For example:

$\frac{1}{y^{-2}} =\frac{y^2}{1}$ or $y^2$

$2x^{-3}$ or $\frac{2^1x^{-3}}{1} =\frac{2}{x^3}$

$\frac{1}{x^{-5}} =x^5$

When a base with an exponent is divided by a base with an exponent, you subtract the exponents together. (But you can only combine the exponents when the bases are the same)

For example:

$\frac{x^2}{y}$ (can't combine because they have different bases of y and x)

$\frac{x^5}{x^3} =x^{(5-3)}=x^2$

$\frac{2^2}{2} =2^{(2-1)}=2^1 = 2$

When you multiply an exponent directly to a base with an exponent, you multiply the exponents together.

For example:

$(x^2)^3=x^{(2*3)}=x^6$

$(y^2)^{10}=y^{(2*10)}=y^{20}$

$\frac{2e^0}{(e^{-3})^2}$ First multiply the exponents together in the denominator

$\frac{2e^0}{e^{(-3*2)}}= \frac{2e^0}{e^{-6}}$ Now subtract the exponents together

$2e^{(0-(-6))}$ (two negative signs cancel each other out and become positive)

$2e^{(0+6)}$

$2e^6$

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3 years ago

In April, the number of cars sold was 546.

Maksim231197 [3]

Answer:

520 cars

Step-by-step explanation:

Let the car sold in March be x, x+5%*x=546. (105/100)*x=546. x=520

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3 years ago