Algebra
posted by Sharon (ms. Sue) .
Can you please check my work? You have helped other students I know. Thank you:)
Multiply
7(2a2 4) = 14a2 + 28
Multiply
0.5(a + b 5) = 0.5a + 0.5b  2.5
Factor
bx  by + bz = b(x  y + z)
Combine like terms (simplify)
12x + 4  11y  6x  9  y = 6x  12y  5
Evaluate the expression
3x2y when x = 3 and y = 5
Answer: 135
Write as a fraction and simplify
Z4
Answer: 1/z4
Write using negative exponents
1/64
Answer: 64
Multiply and simplify
3small2 • 3small6 = 81
Divide and simplify
4small2/4small4 = 16
Divide and simplify
Y/y5 = 1
Simplify
(2small3) small2 =32
Simplify
(xsmall1 ysmall1) small5 = ysmall5/xsmall5
Write in scientific notation
0.000005 = 5x10 small6
Write in standard notation
31 x 10small7 =310,000,000
Perform the indicated operations (give your answer in scientific notation)
(5x10small2) x (5.6x10small4) = 2.8x10small6
Solve
X  2.1 = 7.5
Answer: x = 5.4
Solve
2.3 = y/2
Answer: y = 4.6
Solve
2  x = 11 (x  1)
Answer: x = 13/12
Please check my answers.

Algebra 
Ms. Sue
Did you see lidia's response?
http://www.jiskha.com/display.cgi?id=1320785885 
Algebra 
Sharon (ms. Sue)
Yes! Great! I wasn't sure if she was a tutor or not thank you.

Algebra 
Ms. Sue
Many of our questions are answered very well by other students.
I'm not really a math teacher, so I defer to answers that appear to be reasonable. 
Algebra 
sue
Evaluate the expression 3x2y when x = 3 and y = 5.
Respond to this Question
Similar Questions

Algebra
Solve S=a/(1r) for r S = a/(1r) Multiply both sides by 1r S*(1r) = [(1r)*a]/(1r) Simplify S*(1r) = a Multiply terms on the left. S  S*r = a Subtract S from both sides. SS*r  S = a  S Simplify S*r = a  S Multiply both sides … 
math
2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check … 
need guidance on an algebra problem
20 x+3(y1)=11 2(xy)+8y = 28 multiply out 20 x+3y3=11  Is this correct? 
Algebra Sq Rt
to multiply the sq rt of 3 cubed by the sq rt of 9 cubed I first need to factor them? 
Algebra (check my answers)
Please check these answers. Multiply 7(2a2 4) = 14a2 + 28 Multiply 0.5(a + b 5) = 0.5a + 0.5b  2.5 Factor bx  by + bz = b(x  y + z) Combine like terms (simplify) 12x + 4  11y  6x  9  y = 6x  12y  5 Evaluate the expression … 
Math(Please respond)
.50  x / x = 3.20e1 I need to solve for x. I was going to do .50 X 3.20e1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help. Math(Please help)  Reiny, Tuesday, April 17, 2012 … 
algebra
Solve. x/91/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/91/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9  … 
algebra 2
I am trying to factor the expression 8y^2+28y60 but can't get an answer that is correct. Here is an example of how the problem is supposed to be factored. If you have 21x277x28 the first thing you would do is (21x )(x ). Next you … 
Math, Please Help!
Ned divided a given number by 3 and then added 2. If he should have multiplied the number by 3 and then subtracted 2, which of the following two steps can he do next to get the correct answer? 
math
Susan has 8/9 gallons of water. She drinks 2/5 of it. Select all the statements that help you determine what fraction of a gallon she has left. Divide 8/9 by 2/5. No Divide 2/5 by 8/9. Yes Multiply the fractions together. No Multiply …