Why does the amount of water that flows in a river change during the year?

Answers

Answer 1

Answer: because of the rain. It can either increase or decrease

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Subtract -2x^2+3x-9from 8x^2+10x-10
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Thomas is grandfather's 100 years old. Thomas grandfather is 10 times as old as Thomas. How old is thomas

find the balance in the account after the given period $500 principal earning 4% compound quarterly after 6 years

Answers

A=P(1+r/100)^n
A=500(1+4/400)^24
A=500(1.01)^24
A=634.87

Answers

1. b

2. d

3. b

4. b

5. a

6. c

7. b

8. b

9. b

10. d

11. b

12. c

A catapult launches a boulder with an upward velocity of 112 ft/s. The height of the boulder, h, in feet after t seconds is given by the function .How long does it take the boulder to reach its maximum height? What is the boulder’s maximum height? Round to the nearest hundredth, if necessary. h=-16t^2+112t+30
A. 7 s; 30 ft
B. 3.5 s; 366 ft
C. 3.5 s; 618 ft
D. 3.5 s; 226 ft

Answers

To determine the time it takes for boulder to reach its maximum height, derive the equation and equate to zero.
h = -16t² + 112t + 30
dh / dt = 0 = -32t + 112
The value of t from the equation above is 3.5 s. Substitute this value of t to the original question,
h = -16(3.5 s)² + 112(3.5 s) + 30 = 226 ft
Thus, the answer is letter D.

Gwen is making a circular rug with a radius of 3 feet. What will the area of the rug be that she is making? With explanation.

Answers

Hi there! A=πr²=π*3²=28.27433 ft². Round 28.27443 to 28.72. Therefore, the area of the rug will be 28.27ft²

area of a circle : 3.14r^2 or ( pi symbol)r^2 3.14 = pi 3 = radius 3.14 • 3^2 Your gonna multiply 3.14 by 3 to the second power. 3.14 • 9 area = 28.26 or 28.27

Write 16/10 in simplest form

Answers

1 $(3)/(5)$ because 16/10 is the same as 16÷10. 16÷10= 1 R6 You would put the remainder over the 10 so your answer would look like 1 $(6)/(10)$ both the numerator(6) and denominator(10) can be divided by 2 after dividing both by 2 your answer would be 1 $(3)/(5)$
So your work would be:
$(16)/(10) = 1 (6)/(10)= 1 (3)/(5) \n (6)/(10)= (divide by2)/(divideby2)= (3)/(5)$

1 3/5 because 10 can go into 16 once and that leaves you with 6/10 and to simplify youd have to divinde by 2

Mrs. Malloy is ordering pizza for her Algebra class. One-fourth of the students wantcheese pizza. If five students want cheese pizza, how many students are there in total?
Use the variable s=students. Your answer should be written as s= your answer.

Answers

Answer:

20 students

Step-by-step explanation:

If 1/4 of the whole class is 5 then 5 + 5 + 5 + 5 = s.

This is because You have to divide the class into 4 parts ad you know each part has 5 people in it.

Please answer this question correctly

Answers

She has 224 ounces, which I claim is the correct answer. How will you know ?

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Which of the following is an equivalent simplified expression for 2(4x + 7) – 3(2x – 4) ?A. x + 2 B. 2x + 2 C. 2x + 26 D. 3x + 10 E. 3x + 11 Can anyone explain this one for me?

Mark was thinking of a number. Mark doubles it and gets an answer of 64. What was the original number?

If A ⊂ B and A ∩ B = θ then which of the following can be concluded about the sets A and B?Set A has more elements in it than set B.Set A is the set containing zero.Set A is the empty set.Both sets A and B are the empty set.

What is the value of -4 + 91 + 72?