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saveliy_v [14]
3 years ago
8

The air temperature dropped from 94°F to 72° Fahrenheit in 15 minutes what is the change in temperature

Mathematics
1 answer:
Inessa05 [86]3 years ago
8 0
22° you just subtract the numbers.
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Find a cartesian equation for the curve. r = 9 sin(θ)
Paul [167]
For this case we have the following equation:
 r = 9 sin (θ)
 In addition, we have the following change of variables:
 y = r * sine (θ)
 Rewriting the equation we have:
 r = 9 sin (θ)
 r = 9 (y / r)
 r ^ 2 = 9y
 On the other hand:
 r ^ 2 = x ^ 2 + y ^ 2
 Substituting values:
 x ^ 2 + y ^ 2 = 9y
 Rewriting:
 x ^ 2 + y ^ 2 - 9y = 0
 Completing squares:
 x ^ 2 + y ^ 2 - 9y + (-9/2) ^ 2 = (-9/2) ^ 2
 Rewriting:
 x ^ 2 + 1/4 (2y-9) ^ 2 = 81/4
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The Cartesian equation is:
 
4x ^ 2 + (2y-9) ^ 2 = 81
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2 years ago
I just need help with problems 15 to 20 <br> Please help
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73.5/5 because the middle number of four and three is 3.5 <span />
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3 years ago
PLZ HELP ILL MARK YOU BRAINLEST ‼️<br><br>a) 120°<br><br>b) 50°<br><br>c) 70°<br><br>d) 180°​
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Answer:

120°

Step-by-step explanation:

Add the 2 opposite angles to find the exterior angle.

50° + 70° = 120°

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Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are sel
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Answer:

Step-by-step explanation:

Given

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=\dfrac{^{34}C_{6}}{^{40}C_{6}}

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=\dfrac{^{42}C_{6}}{^{48}C_{6}}

=0.427

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\dfrac{^{50}C_{6}}{^{56}C_{6}}

=0.489

Cae-4 no of ways to choose 6 incorrect numbers out of 64 integers

\dfrac{^{58}C_{6}}{^{64}C_{6}}

=0.54

6 0
3 years ago
What is 23579 in word form?<br> Please helppppp
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Answer:

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Step-by-step explanation:

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3 years ago
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