Wednesday

September 17, 2014

September 17, 2014

Posted by **bryan** on Tuesday, December 16, 2008 at 12:51am.

1) (5t)(5t)^3

My answer: 5t^15

Write the number without exponents

2) 8.78x10^5

My answer: 878,000,000

Multiply.

3) (x+9)^2

My answer: 9x^18

- math check -
**Reiny**, Tuesday, December 16, 2008 at 1:21amno, on all three

(5t)(5t)^3

= (5t)^4

= 625t^4

8.78x10^5

= 8.78x100000

= 878000

(x+9)^2

= (x+9)(x+9)

= x^2 + 9x + 9x + 81

= x^2 + 18x + 81

**Answer this Question**

**Related Questions**

Algebra (check my answers) - Please check these answers. Multiply -7(2a2 -4) = -...

Algebra - Can you please check my work? You have helped other students I know. ...

math - multiply and write answer without exponents (3x10^6)(2x10^4) Is the ...

Math check - Write the number without exponents 8.83x10^11 88,300,000,000

Algebra - Can someone check my work please? Write using positive exponents, and ...

Math - What is the percent increase in the population for all six inhabited ...

math - please check me - Identify the amount in the following application In a ...

match check - Solve the following equation. 3(2x-6)=(6(x-3) a)0 b)1 c)all real ...

math check - 1. find the square root of 25 answer 5 2. find the median of the ...

Math - check me - How many grams (g) are there in 7.4 kilograms (kg)? Multiply ...