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Ymorist [56]
4 years ago
11

Plz help ill give u brainlist plz help toofree

Mathematics
1 answer:
Anni [7]4 years ago
7 0
Total surface area = 2(62.4) + 3(72) = 340.8 cm²

Your friend did this : 2(62.4) + 72 = 196.80.
He did not multiply the 72 by 3 (Since there is 3 sides)


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Penelope is saving up to buy a new bicycle. She already has $65 and can save an
alisha [4.7K]

Answer:

she would have $85 in 4 weeks

Step-by-step explanation:

5*4=20

20+65=$85

7 0
3 years ago
Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are<br> equivalent? Is she correct?
zavuch27 [327]

Answer:

no she is wrong

Step-by-step explanation:

7a-4+3a-6=  10a-10 therefore they are not equal

5 0
3 years ago
Read 2 more answers
(83.9x10^12)(2.87x10^-3)/ 3.76x10^2
RideAnS [48]
<u>(83.9 × 10^12)(2.87 × 10^-³)</u>
             3.76 × 10²
<u>(83,900,000,000,000)(0.00287)</u>
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 <u>240,793,000,000</u>                                 
           376
640,406,914.9


8 0
3 years ago
Serena uses chalk to draw a straight line on the sidewalk. The line is 12 ft long. She wants to divide the line into sections th
lutik1710 [3]

Answer:

216 ft

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you multiply 12 and 18

6 0
3 years ago
Which polynomials are prime? Check all that apply.
insens350 [35]
15x2+10x-9x+7
8x3+20x2+3x+12
11x4+4x2-6x2-16
Hope this helps !!
8 0
3 years ago
Read 2 more answers
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