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inn [45]
2 years ago
11

Subtract 2xy-8 from 5x^2+3xy+12

Mathematics
1 answer:
JulijaS [17]2 years ago
3 0

Answer:

5x^2 + xy + 20

Step-by-step explanation:

Begin with 5x^2+3xy+12,  Subtracting 2xy yields 5x^2 + xy + 12.  Next, subtracting -8 yields 5x^2 + xy + 12 - (-8), or   5x^2 + xy + 20

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reorder the numbers and combine like terms to simplify 4.5+2 1/2 +6.0-5 1/2 is it A. -7.5 B. 7 C.7.5 or D.8.5​
DerKrebs [107]

Answer:

I believe its C

Step-by-step explanation:

I added them up lol

6 0
3 years ago
Read 2 more answers
Gloria talked on her cell phone for 320 minutes the first month,243 minutes the second month,and 489 minutes the third month.Her
34kurt

Answer: \$175

Step-by-step explanation:

Since Gloria cannot pay for each minute talked but for packages of 200 minutes at the rate of $25 each, we have to make calculations according to these conditions as follows:

Month 1:

Gloria talked on her cell phone for 320 min. So, she had to buy 2 packages of 200 min for \$25 each package.

Hence:

(\$25) 2= \$50

Month 2:

Gloria talked on her cell phone for 243 min. So, she had to buy again 2 packages of 200 min for \$25 each package.

Hence:

(\$25) 2= \$50

Month 3:

Gloria talked on her cell phone for 489 min. So, she had to buy 3 packages of 200 min for \$25 each package.

Hence:

(\$25) 3= \$75

Then, if we take the total Gloria had to pay for the frist three months, we have:

\$50 + \$50 + \$75= \$175

5 0
3 years ago
How do you say 876543 in word form
Valentin [98]
Eight hundred seventy six thousand five hundred forty three.
7 0
3 years ago
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Y=1/2x +5<br> Y=-3/2x-7<br> Find x and y
gayaneshka [121]
I'm going to use the substitution method. 

If y = - 3/2 - 7, then:

1/2x + 5 = - 3/2x - 7

Combine like terms: 

4/2x = - 12. Mutiply both sides by 2/4 to get x = -12 (2/4)

Simplify to get:

x = - 6.

Plug - 6 back in for x in either equation.

Y = 1/2( - 6) + 5 which becomes Y = - 3 + 5.

X = - 6, Y = 2





8 0
3 years ago
Determine whether a triangle can be formed with the given side lengths.   11 ft, 2 ft, 15 ft
dimulka [17.4K]
No it can not be formed because the sum of the two smaller side lengths is not greater than the longest length
6 0
3 years ago
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