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kirill [66]
3 years ago
9

Hey lol um pls help i don’t get it

Mathematics
1 answer:
frutty [35]3 years ago
8 0
I can’t see it it’s blurry be
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How many students studied for exactly 2 hours?<br> A. 0 B. 2 C. 4 D. Not enough information
Savatey [412]

Answer:

its C 4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A person drove 36 miles per hour on a trip. If he had driven 48 miles per hour he would have arrived 4 hours earlier. What was t
nlexa [21]

Answer:

d = 576

Step-by-step explanation

Think of the two different speeds as belonging to 2 different cars going to the same place, taking the same route and going to the same place.

Let the time traveled by the fast car = t

Let the time traveled by the slower car = t+4

Let the rate of travel of the slow car = 36 mph

Let the rate of travel of the fast car = 48 mph

===========

d = 36*(t + 4)

d = 48 * t

Since the distance is the same, they can be equated.

48t = 36(t + 4)           Remove the brackets.

48t = 36t + 144          Subtract 36t from both sides.

48t - 36t = 144           Combine

12t = 144                     Divide by 12

t = 144/12

t = 12

Therefore the faster car takes 12 hours to get where it is going.

d = 48 * t

d = 48 * 12

d = 576

6 0
3 years ago
HELP me please.............​
denis23 [38]

Answer:

x+Y=0< dependent

x−Y=0 <dependent

x+Y=2< inconsistent

x−2Y=4x−Y=−1 < inconsistent

x−Y=−2Ta< independent

Step-by-step explanation:

I haven't learn these type of questions yet only freshman in high so tried to come up with the best answers with a lot of research

Hope this help

5 0
3 years ago
What does r stand for in the formula 2.rr.?
klemol [59]

Answer:

r = radius of circle

Step-by-step explanation:

The circumference of a circle is given by :

C = 2πr

Where

r is the radius of the circle

In this problem, we need to say that what does r represents in the given formula. It means we can say that r stands for the radius of the circle.

4 0
2 years ago
An artist created the sculpture shown with concrete. The radius of the bottom hemisphere is double that of the top hemisphere. F
klemol [59]

<u>Answer:</u>

Vt = 4071.5 ft^3

<u>Step-by-step explanation:</u>

Givens:

  • R = 12
  • R = 2r => r = 6

Equations

  1. V = (4/3)(pi)r^3

Find: Vt (Total Volume)

Vt = (1/2)V1 + (1/2)(V2)

Vt = (1/2)(V1 + V2)                 <em>[Factor out (4/3) and (pi) from volumes]</em>

Vt = (1/2)(4/3)(pi)(R^3 + r^3)  <em>[Sub in Values]</em>

Vt = 4071.5 ft^3

5 0
3 years ago
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