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2 years ago

How many 90 degree angle does it take to make a full turn

2 answers:

7 0

Full turn = 360°

Number of 90° = 360 ÷ 90 = 4

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Answer: It takes 4 90° to make a full turn.
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prisoha [69]2 years ago

7 0

So a full circle is 360 degrees. 90 degrees is 1/4 of that. SO you can either add 90 to itself till your at 360, or multiply, 90 x1, 90 x2, and you will find out that because it is 1/4 your answer is 4!!! I hope this helps, is possible maybe a thanks and brainliest!!!(Im trying to get to the next rank!)

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What is the answer to the equation? Explain how you would solve this problem. 2x - 8 = 50

wariber [46]

The answer is 29. The answer is 29 because you add the 8 to 50. You get 58. Then divide 58 by 2 and you get 29.

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2 years ago

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Slope of (-2,-1) and (5,-1) in fraction form

dangina [55]

Slope is 0

Step-by-step explanation:

Step 1: Find slope using the formula for slope, m = (y2 - y1)/(x2 - x1) Here, x1 = -2, y1 = -1, x2 = 5 and y2 = -1

⇒ m = (-1 - -1)/(5 - -2)

= 0/7 = 0

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3 years ago

Draw and compare models of 3/4 of a pizza pie and 6/8 of a same-size pizza

Verizon [17]

Since I can't draw a model the answer is equal because if you reduce 6/8 the answer is 3/4

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2 years ago

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A roast turkey is taken from an oven when its temperature has reached 185 degrees F and is placed on a table in a room where the

Vedmedyk [2.9K]

(a) Using Newton's Law of Cooling, $\dfrac{dT}{dt} = k(T - T_s)$ , we have $\dfrac{dT}{dt} = k(T - 75)$ where T is temperature after T minutes.
Separate by dividing both sides by T - 75 to get $\dfrac{dT}{T - 75} = k dt$ . Integrate both sides to get $\ln|T - 75| = kt + C$ .

Since $T(0) = 185$ , we solve for C:
$|185 - 75| = k(0) + C\ \Rightarrow\ C = \ln 110$
So we get $\ln|T - 75| = kt + \ln 110$ . Use T(30) = 150 to solve for k:
$\ln| 150 - 75 | = 30k + \ln 110\ \Rightarrow\ \ln 75 - \ln 110= 30k \Rightarrow \\ k= \frac{1}{30}\ln (75/110) = \frac{1}{30}\ln(15/22)$

So

$\ln|T - 75| = kt + \ln 110 \Rightarrow |T - 75| = e^{kt + \ln110} \Rightarrow \\ \\
|T - 75| = 110e^{kt} \Rightarrow T - 75 = \pm110e^{(1/30)\ln(15/22)t} \Rightarrow \\
T = 75 \pm110e^{(1/30)\ln(15/22)t}$

But choose Positive because T > 75. Temp of turkey can't go under.

$T(t) = 75 + 110e^{(1/30)\ln(15/22)t} \\
T(45) = 75 + 110e^{(1/30)\ln(15/22)(45)} = 136.929 \approx 137{}^{\circ}F$

(b)

$T(t) = 75 + 110e^{(1/30)\ln(15/22)t} = 75 + 110(15/22)^{t/30} \\
100 = 75 + 110(15/22)^{t/30} \\
25 = 110(15/22)^{t/30} 
\frac{25}{110} = (15/22)^{t/30} \\
\ln(25/110) / ln(15/22) = t/30 \\
t = 30\ln(25/110) / ln(15/22) \approx 116\ \mathrm{min}$

Dogs of the AMS.

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2 years ago

Can someone help? TvT please

zysi [14]

Answer:

I don't know bro actually which question ❓

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2 years ago