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Akimi4 [234]
3 years ago
10

How do you find the area of the shaded region

Mathematics
2 answers:
densk [106]3 years ago
7 0
The answer is 70 I think
RUDIKE [14]3 years ago
7 0
7 × 10 = 70
5 × 3 = 15
70 - 15 = 55
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19.90 dollars if you need help with steps just ask!
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Please hurry I have no clue what it is
inysia [295]
I think the answer is A. 7 5/6
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How do you solve cos(pi/24) using Half-Angle formulas, and leaving in simplified form?
adoni [48]
\cos \frac{\theta}{2}=\sqrt{\frac{1+\cos \theta}{2}}
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\\ \cos{\frac{\pi}{24}}=\cos{\frac{\frac{\pi}{12}}{2}}=\sqrt{\frac{1+\cos \frac{\pi}{12}}{2}}= \sqrt{ \frac{1}{2}+ \frac{\cos \frac{\pi}{12}}{2}  } 
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\\ \cos{\frac{\pi}{12}}=\cos{\frac{\frac{\pi}{6}}{2}}=\sqrt{\frac{1+\cos \frac{\pi}{6}}{2}}= \sqrt{ \frac{1}{2}+ \frac{ \frac{ \sqrt{3} }{2} }{2}  } =\sqrt{ \frac{2}{4}+  \frac{ \sqrt{3} }{4}   } = \sqrt{\frac{ 2+\sqrt{3} }{4} } = 
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\\ =\frac{ \sqrt{2+\sqrt{3}} }{2} 


\cos{\frac{\pi}{24}}= \sqrt{ \frac{1}{2}+ \frac{\cos \frac{\pi}{12}}{2}  } = \sqrt{ \frac{1}{2}+ \frac{\frac{ \sqrt{2+\sqrt{3}} }{2}}{2}  } = \sqrt{ \frac{2}{4}+ \frac{ \sqrt{2+\sqrt{3}} }{4}}  } =\sqrt{ \frac{ 2+\sqrt{2+\sqrt{3}} }{4}}  } 
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6 0
3 years ago
A grocer bought some walnuts for 45¢ per pound and some pecans for 60¢ per pound. He wants to mix the pecans and walnuts togethe
ladessa [460]
Cost of walnuts = 45 cents per pound
Weight of walnuts in mixture = x pounds

So, total cost of walnuts in the mixture = 45x
This gives the cost in cents. The cost in dollars will be = 0.45x

Cost of pecans = 60 cents per pound

Since total weight of the mixture is 90 pounds. The weight of pecans in the mixture will be (90 - x) pounds.

So, total cost of pecans in the mixture will be = 60 (90 - x)
This gives the cost in cents, the cost in dollars will be = 0.6 (90 - x)

x pounds of walunts and (90-x) pounds of pecans are mixed to produce a mixture to sell at 55 cents per pound. So,we can set up the equation for this case as:

Cost of Walnuts + Cost of Pecans = Cost of Mixture

0.45x+(90-x)*0.60=90(0.55)

Using this equation, we can find the weight of walnuts, using x we can also find the weight of pecans. From weights we can then calculate the cost of walnuts and pecans used in the mixture.

7 0
3 years ago
26% of what is 32? round to 1 decimal
stellarik [79]

Answer:

12.

Step-by-step explanation:

32*.26=11.52

Rounded

I

I

12.

5 0
4 years ago
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