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kotegsom [21]
3 years ago
9

We're does the decimal go in the number2445

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0
The decimal goes between four and the other four
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A car travels along a straight stretch of road. It proceeds for 16.2 mi at 57 mi/h, then 24.6 mi at 44 mi/h, and finally 45.1 mi
LekaFEV [45]

Answer:

The average velocity the entire trip was 43.25 mi/h

Step-by-step explanation:

In this case we have to calculate an average based on the miles traveled. First we have to calculate the total of miles traveled, then calculate the portion of the total travel of each and with this calculate the average speed during the trip. First the total miles traveled:

TotalMiles=16.2+24.6+45.1=85.9

Now the percentages:

At 57 mi/h were \frac{16.2}{85.9}=0.19

At 44 mi/h were \frac{24.6}{85.9}=0.29

At 37.8 mi/h were \frac{45.1}{85.9}=0.52

Now multiplying the speed by the portion and summing them we can have the average velocity:

57*0.19+44*0.29+37.8*0.52=43.25

The average velocity the entire trip was 43.25 mi/h

5 0
3 years ago
What is the value of f(-4) in the piecewise function f(x)= -x-5 for -5<= x <= -2; -x^2+1 for -2<=x<=2; (x-3)^2+2 for
Alik [6]


We first need to pick the correct piece to use. In this case, we will use f(x) = -x-5 because -5<=-4.

Then, we use direct substitution:
f(-4) = -(-4) - 5
f(-4) = -1

5 0
3 years ago
Read 2 more answers
The measure of an angle is 34 degrees. What is the measure of the supplementary angle.
prohojiy [21]

Answer:

<em>146</em>

Step-by-step explanation:

Supllementary angles add up to 180 degrees.

<em>180-34 = 146</em>

7 0
3 years ago
Maria studied the traffic trends in India. She found that the number of cars on the roads increases by 10% each year. If there w
laiz [17]
You would do

(1.1)(80,000,000)=88,000,000

That is the total cars for year two. To find the increase you would do

(1.1)(88,000,000)=96,800,000

Then you would subtract year 2 from year three

96,800,000-88,000,00=8,800,000

That gives you ur answer.
7 0
3 years ago
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Factor -24a3b3c3 - 84a4b2c.
My name is Ann [436]
The answer is B. It’s not too difficult

4 0
3 years ago
Read 2 more answers
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