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densk [106]
3 years ago
11

Find the missing side

Mathematics
1 answer:
dybincka [34]3 years ago
6 0

Answer:

7) 8.94

8) 6.71

Step-by-step explanation:

for both questions, use pythagorean theorem

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

<u>Question 7:</u>

4^{2} + 8^{2} = c^{2}

16 + 64 = c^{2}

80 =  c^{2}

\sqrt{80} = \sqrt{c^{2}}

c = 8.94

<u>Question 8:</u>

6^{2} + 3^{2} = c^{2}

36 + 9 = c^{2}

45 = c^{2}

\sqrt{45} = \sqrt{c^{2} }

c = 6.71

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4 0
3 years ago
Whats the answer in these boxexs
svetoff [14.1K]

Answer: 17 nickels, 8 dimes

Step-by-step explanation:

Since we are given system of equations, we can use elimination method to find n or d. First, let's eliminate n. To do so, we need to make sure they are equal to each other. Then, we would have to multilpy the second equaiton by 0.05.

0.05N+0.1D=1.65

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Now, we can subtract the 2 equations.

0.05D=0.4

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Now that we know the number of dimes, we can plug it into any of the equations to find nickels.

N+8=25

N=17

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3 years ago
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a side of an equilateral triangle is 2/8cm long. Draw a picture that's shows the triangle. What is the perimeter of the triangle
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Calculates the total amount E, in dollars, that she earns for working h hours using the equation E = 10h
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So your equation is E=10h.

We know E is equal to 1 so let's plug that is.

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Now we just solve it.

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Boom!

She has to work .1 hours or 1/10 of an hour to earn 1 dollar.



Hope I helped!

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3 years ago
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