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mixer [17]
3 years ago
9

PLEASE HELP

Mathematics
1 answer:
faltersainse [42]3 years ago
6 0

Answer: 5x+12.50=62.50

5*12.50=62.50

Step-by-step explanation:

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The table below shows the surface area y, in square feet, of a shrinking lake in x days:
andreyandreev [35.5K]
Based on the data, the most likely correlation coefficient would be -1.
The slope between 20 and 30 days is -1, and it represents the change in the surface area of the lake per day.
The data represents correlation, not causation.

Since the data would form a perfectly straight line through the points, the correlation coefficient would be -1 for a perfect decreasing fit.
To find the slope, find the change in the surface area between those days, the change in the days, and write it as surface area/days:  80-90=-10; 30-20=10; -10/10=-1
This is not causation because there could be lurking variables we cannot see.
6 0
3 years ago
11, 15, 19,... Find the 46th term.<br>WILL GET BRAINLIEST!!!!!!!!​
mixer [17]

Answer:

191

Step-by-step explanation:

the rule is +4 so 11+45*4=191 (45 is the number not including the first one)

191 is the answer

7 0
2 years ago
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A can of beans has surface area 320cm squared . Its height is 14 cm. What is the radius of the circular​ top?
Ratling [72]

Steps:

All cans take on the shape of a cylinder, unless you have seen interesting shape of cans like a starfish.

The formula for surface area of a cylinder is

 

SA = 2πr2 + 2πrh

 

where:

r = radius

h = height

 

Since we know the surface area and height, we can plug them in.  Note that we can factor out the 2π.  You will see why we factor out 2π rather than 2πr.

 

2π(r2 + (20)r) = 396

 

2π(r2 + 20r) = 396

 

 

Divide both sides of the equation by 2π to isolate the r terms.

 

r2 + 20r = 63.025    

 

 

Subtract 63.025 on both sides of the equation.

 

r2 + 20r - 63.025 = 0

 

 

Use the quadratic formula to solve for r:

 

r = (-b ± √(b2 - 4ac)) / 2a

 

where:

a = 1

b = 20

c = -63.025

 

Plug in these values into the formula.  You should get two solutions because of the plus/minus sign.  Accept the positive value of r.

Please mark brainliest

<em><u>Hope this helps.</u></em>

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3 years ago
What’s the length of EF in the right triangle below
Licemer1 [7]
HOPE it helps!!!!!!!!!
plz mark as a brainliest answer!!!!!!

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3 years ago
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The area of a triangular block is 49 square inches. If the base of the triangle is twice the height, how long is the base of the
NeTakaya

Answer:

4566

Step-by-step explanation:

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3 years ago
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