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nexus9112 [7]
2 years ago
10

Find BC to the nearest tenth. will give brainilist

Mathematics
1 answer:
horsena [70]2 years ago
4 0

Answer:

BC = 20.7

Explanation:

  • Formula used: a² = b² + c² - 2bc*cos(A)

<u>Using the formula</u>:  BC² = 15² + 13² - 2*15*13*cos(95)

                                BC² = 427.991

                                BC = √427.991

                                BC = 20.7 units

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The correct answers are C, D, and E.

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1 pt = 16 oz

Using these conversions you will multiply the number of quarts or pints by the number of ounces in each and then add the totals together to find if they equal 128 oz.

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3 years ago
Can someone help with 39-40 ???
Allisa [31]

39.   8   -0.7 are multiplied together  so the answer is

(-0.7)^8

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3 years ago
Find x and decide if that side (with the x) is an Altitude
irga5000 [103]

Answer:

  1. b = 15
  2. c = 51
  3. c = 100
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Step-by-step explanation:

Using the Pythagoras theorem equation:

c^{2}=a^{2}+b^{2}

Where 'c' is the hypotenuse and 'b' and 'a' the sides of the right triangle.

1) Here c = 17, a = 8 and b = ?

Then, using the above equation we can find the side b.

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b=\sqrt{225}

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2) Here a = 24, b = 45 and c = ?  

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4)  Here a = 17, b = ? and c = 28

b=\sqrt{28^{2}-11^{2}}  

b=25.75

Just in the 4 case x is an altitude.

I hope it helps you!

         

3 0
3 years ago
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EleoNora [17]
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2 years ago
The cost for a pack of 18 pencils is $3.24. Find the unit price in dollars per pencil. If necessary, round your answer to the ne
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Answer:

$0.18 per pencil.

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"Dollars per unit" means that you take the dollar amount and divide it by the amount of pencils, so you get 3.24/18, or .18.

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