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harina [27]
2 years ago
7

Help ( i need to show my work)!!!

Mathematics
1 answer:
hodyreva [135]2 years ago
8 0

its 7 because 7*7=49 and 49*7=343

so the cube root of 343 would be 7

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Jordie is getting balloons for his aunt's birthday party. He wants each balloon string to be 12 feet long. At the party store, s
geniusboy [140]

Answer:

216 yards

Step-by-step explanation:

You'd multiply the amount of string for each balloon (12 feet) by the 54 balloons he needs, and you get 648 feet. There are 3 feet in a yard so then you would divide 648 by 3 and get 216 yards

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2 years ago
Divide r+5/r^2+5r-14 by r^2+4r-21/r-2
sergey [27]
<span>      r+5                 </span><span>r^2+4r-21
</span><span>-------------- /   --------------------
r^2+5r-14               </span><span>r-2

</span>          r+5                     r-2
= --------------  x   --------------------
    r^2+5r-14           r^2+4r-21

          r+5                     r-2
= --------------  x   --------------------
    (r+7)(r-2)           (r+7)(r-3)


          r+5                     
= -----------------
    (r+7)^2 (r-3)           
7 0
3 years ago
What a Expression that has a value -8
kirill [66]

Answer:

(-4+2*2)+8

Step-by-step explanation:

2*2=4

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5 0
3 years ago
Read 2 more answers
There are 34 Pre-K children and 29 kinder garden children on the playground, some boys and some girls. The ratio of boys to girl
Natali [406]

There are 27 boys on the playground.

Step-by-step explanation:

No. of Pre-K children = 34

No. of kindergarten children = 29

Total no of children = 29+34 = 63

Ratio of boys to girls = 3:4

Total ratio = 3+4 = 7

Therefore,

boys proportion = \frac{3}{7}

Total number of boys = \frac{3}{7}\ of\ total\ number\ of\ children

Total\ number\ of\ boys = \frac{3}{7} *63\\Total\ number\ of\ boys = \frac{189}{7} \\Total\ number\ of\ boys = 27

There are 27 boys on the playground.

Keywords: Proportion, division.

Learn more about proportion at:

  • brainly.com/question/2283067
  • brainly.com/question/2284968

#LearnwithBrainly

5 0
2 years ago
If m∠A = 56°, m∠B = 60°, and c = 8, what is the measure of side length b?
Alekssandra [29.7K]

Using the law of sines:

\frac{b}{sin(B)}=\frac{c}{sin(C)}

Solve for b:

\begin{gathered} b=\frac{c\cdot sin(B)}{sin(C)} \\ so: \\ b=\frac{8\cdot sin(60)}{sin(64)} \\ b\approx7.708 \end{gathered}

Answer:

7.708

5 0
11 months ago
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