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kondor19780726 [428]
3 years ago
8

Help please!!!! How did they get the answer? Please show your work! Thank you!

Mathematics
1 answer:
kakasveta [241]3 years ago
3 0
7 ∫ cos(πx) dx
7 [ sin(πx)/π ]
7/π (sin(π/2) - sin(0))
7/π (1 - 0)
7/π  ~ 7/3
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A serving size for pineapple-orange punch is 1/2 cup. Liam needs to make 72 servings of punch. He will use 8 pints of pineapple
Hunter-Best [27]
Since a serving is 1/2 cup and he needs 72 servings you can multiply 72 by 1/2 and find out that he needs to make 36 cups of punch. Two cups is a pint so he needs (36 / 2) 18 pints of juice. He already has the 8 pints of pineapple juice so 18 - 8 leaves 10 pints of orange juice.
7 0
3 years ago
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PLSSSSSSSSSSSSSSSS HELP Determine the quotient of 2 over 5 divided by 3 over
muminat

Answer:

Step-by-step explanation:

\frac{2}{5} ÷ \frac{3}{4} = \frac{2}{5} × \frac{4}{3} = \frac{8}{15}

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3 years ago
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3 years ago
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What are the roots of x2 + 8x – 48 = 0? <br> show me the work
nekit [7.7K]
<span>x^2 + 8x – 48 = 0
That is a quadratic equation where
a = 1
b = 8
c = -48
We can solve it by using the quadratic formula:
x = [-b +-sq root (b^2 - 4ac)] / 2a
x = [-8 +- sq root (64 -4*1*-48)] / 2*1
</span><span>x = [-8 +- sq root (256)] / 2
x = [-8 +-16] / 2
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</span>
8 0
3 years ago
-k/5 = 7/5 can someone help with this?​
Elena L [17]

Answer:

k = -7

Step-by-step explanation:

Step 1: Write equation

-k/5 = 7/5

Step 2: Solve for <em>k</em>

  1. Cross multiply: -5k = 35
  2. Divide both sides by -5: k = -7

Step 3: Check

<em>Plug in k to verify it's a solution.</em>

-(-7)/5 = 7/5

7/5 = 7/5

4 0
4 years ago
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