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3 years ago

Q20. A sample of 900 students found that the average time spent studying was 1.3 hours on average with a standard

Mathematics

1 answer:

allochka39001 [22]3 years ago

3 0

Answer:

Step-by-step explanation:

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What is the volume of a cube that has edges of 3 3/4

tino4ka555 [31]

Answer:

3375/64

Step-by-step explanation:

You make the fraction into a improper fraction

3 3/4=15/4

You cube the top and bottom

15^3/4^3=3375/64

Thus

answer-3375/64

8 0

4 years ago

Please help???????? ASAP

Keith_Richards [23]

Answer:

The answer is 9

Step-by-step explanation:

You each exponent to get 81/9. You simplify and it gives you 9.

8 0

3 years ago

Read 2 more answers

Write each equation in function notation, then solve the function for the given value.

sergiy2304 [10]

Answer:

y = 21

Step-by-step explanation:

x = 5

y = 5 (5) - 4

y = 25 - 4

y = 21

(5 , 21)

Hope this helps!

4 0

3 years ago

Find the slope between<br> the two ordered pairs:<br> (1,5) and (-2,-7)

eimsori [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

A car is driving away from a crosswalk. The formula d = t2 + 2t expresses the car's distance from the crosswalk in feet, d, in t

alukav5142 [94]

Answer:

8 feet per second.

Step-by-step explanation:

We have been given that a car is driving away from a crosswalk. The formula $d=t^2+2t$ expresses the car's distance from the crosswalk in feet, d, in terms of the number of seconds, t, since the car started moving.

We will use average change formula to solve our given problem.

$\text{Average change}=\frac{f(b)-f(a)}{b-a}$

$\text{Average change}=\frac{d(5)-d(1)}{5-1}$

$\text{Average change}=\frac{(5)^2+2(5)-((1)^2+2(1))}{4}$

$\text{Average change}=\frac{25+10-(1+2)}{4}$

$\text{Average change}=\frac{35-3}{4}\\\\\text{Average change}=\frac{32}{4}\\\\\text{Average change}=8$

Therefore, the the car's average speed over the given interval of time would be 8 feet per second.

8 0

3 years ago