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poizon [28]
3 years ago
9

The sum of two integers is 21. Fifteen less than double the square of the smaller integer is equal to the larger

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
6 0

Answer:

2x^2+x-36=0

(4,0)

2*4^2+4-15=21

Step-by-step explanation:

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HELPPPPPPPPPPP , witch should I pick .
lara31 [8.8K]
Answer:
A

Explanation: horizontal line is 180 degrees, and the square means 90 degrees. So adding up the angles z + 90 + z =180
4 0
3 years ago
Round 66681 to the nearest ten thousand
Digiron [165]

Answer:

66,681 rounded to the nearest ten-thousand would be equal to 70,000.

Step-by-step explanation:

any time the number is higher than 5 you round up but if not you round down! i hope this helps!

3 0
3 years ago
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A contestant on a game show has 30 points. She answers a quest on correctly to win 15 points. Then she answers a question incorr
Morgarella [4.7K]
The contestants total number of points is 20.

30 + 15 = 45
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7 0
3 years ago
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If a cylinder with height 9 inches and radius rr is filled with water, it can fill a certain pitcher. How many of these pitchers
katrin2010 [14]

Answer:

9 pitchers

Step-by-step explanation:

Given

Cylinder 1:

Radius = r

Height = 9

Cylinder 2:

Radius = 3r

Height = 9

Required

How many pitchers' cylinder 2 can fill

First, we calculate the volume of both cylinders

Volume is calculated as:

Volume = \pi r^2h

For A:

V_A = \pi r^2*9

V_A = 9\pi r^2

For B:

V_B = \pi (3r)^2 * 9

V_B = \pi *9r^2 * 9

V_B = 9* 9\pi r^2

In (a): V_A = 9\pi r^2

So, we have ve:

V_B = 9*V_A

V_B = 9V_A

<em>If the first cylinder can fill 1, then the second can fill 9 pitchers</em>

7 0
3 years ago
Solve each system of equations by graphing y=2/3x+3 3y=2x+15
dangina [55]

Answer:

There is no solution to that equation.

Step-by-step explanation:

First thing to do is to put the second equation in terms of y. To do so the equation becomes y= 2/3x+5. Comparing those two equation you can see that the slopes are the same and thus means that the system has no solution.

Another way to see this is by graphing both of thee equations is a calculator and seeing there are no points of intersection.

7 0
3 years ago
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