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Mumz [18]
4 years ago
8

Which of the following is the most appropriate unit to describe the rate at which water flows over Niagara Falls?

Mathematics
2 answers:
melomori [17]4 years ago
8 0
C) Billion gallons per day, because the independent quantity is time in days and dependent quantity is volume of water in billion gallons.

Hope this helps!!
olga2289 [7]4 years ago
5 0
Here "rate" refers to how much water in how much time, so eliminate A qnd D.  Which sounds correct, B or C?  The correct answer corresponds to 
(quantity of water) / (period of time).
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A principal of $2000 is invested at 6% Interest, compounded annually. How much will the investment be worth after 11 years
Mashutka [201]

Answer: $3,797

Step-by-step explanation:

Because it is a 6% interest, the value increases by 1.06x each time.  Because it changes 11 times, simply do

2000*1.06*1.06*1.06*1.06*1.06*1.06*1.06*1.06*1.06*1.06*1.06 to get 3796.59712

Hope it helps <3

4 0
3 years ago
Read 2 more answers
Students in a class were asked to name their favorite flavor of ice cream. The results are shown in the circle graph. How many t
balu736 [363]
9 Times, hopes this helped
6 0
3 years ago
Read 2 more answers
X(x+9)=0 <br> x=?<br> What does x have to be for the answer to be 0?
yaroslaw [1]
<em>when we solve the equation it will become
x</em>² + 9x<em>= 0
now here a = 1 , b = 9 and c = 0 
by using quaderatic formula
x = -b +,-</em>√<em>b </em>²<em>- 4ac / 2a     ( 2a is divided by all terms )
by putting values
x = - 9 +,</em><em>- </em>√<em>81 / 2(1)               ( </em>√<em>81 = 9)</em><em>
x = -9 + 9 / 2    and x = -9 -9 /2
x = 0                and x = -18 /2 = -9  
now there are two values for x one is- 9 and other is 0 
so we put -9 as the value of x then answer will be zero..</em>
5 0
3 years ago
Read 2 more answers
The train station clock runs too fast and gains 8 minutes every 10 days. How many minutes and seconds will it have gained at the
Dvinal [7]

Answer:

At the end of 7 days, it will have gained 5 minutes and 36 seconds.

Step-by-step explanation:

This question can be solved using a rule of three.

It gains 8 minutes every 10 days. How much does it gains every 7 days?

7 days - x minutes

10 days - 8 minutes

10x = 7*8

10x = 56

x = \frac{56}{10}

x = 5.6

Each 7 days, it gains 5.6 minutes. That is, it gains 5 full minutes, plus 0.6 = 60% of a minute, in seconds.

A minute has 60 seconds. 0.6*60 = 36

So

At the end of 7 days, it will have gained 5 minutes and 36 seconds.

7 0
3 years ago
The measure of angle C is 20.5 angles C and D are complementary angles Find m
Kobotan [32]

Answer:

69.5 if C and D both add up to 90, M=90 if both angles C and D were complementary to combine to a supplementary.

Step-by-step explanation:

You're trying to find m which is a variable for measurement for the "D" angle.

Info Given:

20.5 for angle C

Unknown for angle D

Both angles are Complementary.

_____________________________________________

I have 2 answers for this (The question was stated unclearly so I have 2 interpretations of this)

1st Answer:

If you're asking to solve for M but the C and D angles add up to 90 then do

90 - 20.5 = 69.5

2nd Answer:

We know that both angles are complementary which are 90-degree angles.

If we combine them then the angles add up to 180.

So C and D add up to form a Supplementary Angle.

20.5+69.5 + m = 180

Then M could possibly be 90.

5 0
2 years ago
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