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Ede4ka [16]
3 years ago
13

Can you help me with number 4 pleaseeeeeee

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
6 0

Answer:

r=15-8 r=7

Step-by-step explanation:

You know for sure that there are 15 sandbags. You know that 8 of those sandbags are blue. If 8/15 are blue, then the other 7 must be red.

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I need help with this question
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Given that v=√u*u- 2qs. Make q the subject of the equation. Find the value of q in the equation if v=8, u=12, and s=40​
kifflom [539]

Answer:

Step-by-step explanation:

v=√u*u- 2qs

  1. \sqrt{20} x 20 - 2q40 = 8
  2. 2\sqrt{5} x 20 - 2q40 = 8
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  4. - 2q40 = 8 - 40\sqrt{5}
  5. -80q = 8 - 40\sqrt{5}
  6. q = (8-40\sqrt{5} ) / -80 = \frac{-1 + 5\sqrt{5} }{10} = 1.018
3 0
3 years ago
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In the diagram, which angles are vertical angles? Check all that apply.
dybincka [34]
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What is the value of the expression below 81^1/4
Natalija [7]

Answer:

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Step-by-step explanation:

recall that 81 = 3 x 3 x 3 x 3 = 3⁴

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81^{\frac{1}{4} }

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= 3

4 0
3 years ago
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