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ryzh [129]
3 years ago
12

The temperature decreased 3 degrees every hour for 4 hours yesterday. How many total degrees did the temperature drop yesterday

Mathematics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer:

12

Step-by-step explanation:

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What is the definition of the cosine ratio of an acute angle of a triangle?
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Answer:

I think the answer is the last one

adjacent side / hypotenuse

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What is the measure of EFG in 0 0 below?
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Answer:

C. 300

Step-by-step explanation:

EFG and EG is the total distance around the circle

EFG + EG = 360 degrees

EFG + 60 = 360

Subtract 60 from each side

EFG +60-60 = 360-60

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grigory [225]

Answer:

40 inches

Step-by-step explanation:

blainliest

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3 years ago
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Can someone help me in this question
BlackZzzverrR [31]

Answer:

The average speed of the athlete for the entire competition is approximately 21.23 km/hr

Step-by-step explanation:

The given parameters of the athlete performance in the triathlon are;

The length the athlete swims = 750 m = 0.75 km

The time the athletes spends swimming = 15 minutes = 0.25 hours

The speed with which the athlete cycles = 40 km/hr.

The time the athletes spends while cycling = 30 minutes = 0.5 hours

The distance the athlete ran = 5 km

The average speed with which the athlete ran = 3 m/s = 10.8 km/hr.

The formula for average speed, s is Average speed = Total distance/(Total time)

The distance, ∑d, the athlete covered in the entire competition is given as follows;

∑d = 0.75 km + 0.5 hr. × 40 km/hr. + 5 km = 0.75 km + 20 km + 5 km = 25.75 km

The distance, ∑t, the athlete spends in the entire competition is given as follows;

∑t = 0.25 hr. + 0.5 hr. + 5 km/(10.8 km/hr.) = 0.25 hr. + 0.5 hr. + 0.463 hr. ≈ 1.213 hr.;

Therefore;

The average speed of the athlete for the entire competition, s = ∑d/∑t = 25.75 km/(1.213 hr.) ≈ 21.23 km/hr.

6 0
3 years ago
Two angles in a triangle are equal and their sum is equal to the third angle in the triangle. What are the measures of each of t
JulijaS [17]
A triangle is 180 if two angles equal to eachother and the other angle is these two combines the angels will be 45 45 90
45+45=90
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3 years ago
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