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sertanlavr [38]
3 years ago
5

A cherry pie is taken out of the oven with an internal temperature of 350°F. It is placed on a rack in a room with a temperature

of 73°F. After 11 minutes the temperature of the pie is 215°F. What will be the temperature of the pie 20 minutes after coming out of the oven?
Mathematics
1 answer:
IrinaVladis [17]3 years ago
8 0
350-215=134, 134/11=12.27, 12.27*20 =245.4, 350-245.4=104.6
104.6 degress F
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What are the exact values of sin(2π3radians) and cos(2π3radians)
deff fn [24]
We know that
2π/3 radians-------> convert to degrees-----> 2*180/3---> 120°
120°=90°+30°

Part a) Find <span>sin(2π/3)
</span>sin(2π/3)=sin (90°+30°)
we know that
sin (A+B)=sin A*cos B+cos A*sin B
so
sin (90°+30°)=sin 90*cos 30+cos 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
sin (90°+30°)=1*√3/2+0*1/2-----> √3/2

the answer part a) is
sin(2π/3)=√3/2

Part b) Find cos (2π/3)
cos (2π/3)=cos (90°+30°)
we know that
cos (A+B)=cos A*cos B-sin A*sin B
so
cos (90°+30°)=cos 90*cos 30-sin 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
cos (90°+30°)=0*√3/2-1*1/2----> -1/2

the answer part b) is
cos (2π/3)=-1/2
8 0
3 years ago
Please simplify I need the extra credit all answers get brainiest.
antoniya [11.8K]

Answer:

3/10a^15b^7c^4

Step-by-step explanation:

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8 0
2 years ago
The diagonal length is 16 and the length is 11 what is the width of this rectangle
allochka39001 [22]

Answer:

The answer is  176

Step-by-step explanation:

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5 0
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LekaFEV [45]

Answer:

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Step-by-step explanation:

6 0
3 years ago
The measure of one acute angle in this right triangle is 45°.
maks197457 [2]

Answer:

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Step-by-step explanation:

90-45=45°

3 0
2 years ago
Read 2 more answers
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