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Alekssandra [29.7K]
3 years ago
8

Water rushes over Niagara falls at the rate of 180 million cubic feet every 30 minutes. How much water goes over the falls in 1

minute?
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
5 0

Answer:

180'000'000/30 = 6'000'000 ft³

Step-by-step explanation:

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Write an equation for (-1,-2),(-3,-4)
Marina86 [1]

Answer:

y=x+1

Step-by-step explanation:

First find the slope by subtracting the y values from both points and dividing it by the subtraction of the x values from both points:

-4--2/ -3--1= -2/-2= 1

so the slope is 1

Now find the y-intercept by plugging in the x and y from one of the points into the equation y=x+b

-3=-4+b

1=b

now plug the slope and y intercept in:

y=x+1

hope this helps :D

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3 years ago
Solve the following quadratic equation by rearranging and then factorising x^2 + 7x + 19 = 9
wolverine [178]

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your lucky you did have a online lessons earlll

Step-by-step explanation:

The following are the temperatures in °C for the first 14 days of January:

-6, -2.5, 2, 2.5, -0.5, 5, 10, -3, -7, 3, -1, 7, 1, 4.5

5 0
3 years ago
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Use the double bar graph below to answer the following question.
natali 33 [55]

Answer:

the population would be 1,200,000 of San Diego in 2000

8 0
3 years ago
The legend on a map reads 1.25 inches represents 500 miles. If the measurement on the map between two locations is 3 inches, how
ser-zykov [4K]

Answer:

These two locations are 1200 miles apart.

Step-by-step explanation:

This question is solved using proportions, by a rule of three.

We have that:

1.25 inches represents 500 miles. 3 inches will represent x miles. So

1.25 inches - 500 miles

3 inches - x miles

Applying cross multiplication:

1.25x = 500*3

1.25x = 1500

x = \frac{1500}{1.25}

x = 1200

These two locations are 1200 miles apart.

6 0
3 years ago
What is the answer to this equation? And if you can, find a way to show your work. Thanks!
Ratling [72]

Answer:

27/ (3+6) x 5 - 12

27/9 x 5 - 12

3 x 5 - 12

15 - 12

3

Step-by-step explanation:

PEMDAS. do what is in parenthesis first, then divide/multiply, reading from left to right, then add/subtract reading from left to right.

5 0
3 years ago
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