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gregori [183]
3 years ago
7

1. The correlation coefficient for weed growth in a lake and temperature was found to be 0.915. The scatter plot

Mathematics
1 answer:
denpristay [2]3 years ago
5 0

Answer:

dots tightly clustered around a line sloping up to the right

Step-by-step explanation:

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Will give brainliest answer!
charle [14.2K]
The answer is C

 you would need to calculate X ( number of hours minus the first hour so x-1)

then multiply that by the rate of $5, then add the $7 for the first hour

6 0
4 years ago
Read 2 more answers
On mr robinsons last history test for this marking period. the average score was 98. Fourty students took the test and 39 studen
BabaBlast [244]

Answer:

20

Step-by-step explanation:

\displaystyle \frac{39(100)+x}{40}=98\\\\3900+x=3920\\\\x=20

Therefore, the remaining student scored a 20 (which sounds weird, but I'm going with it).

6 0
2 years ago
A cylindrical tin full of engine oil had a diameter of 12cm and a height of 14cm the oil is poured into a rectangular tin 16cm l
jeyben [28]

Answer:

The depth of oil in the tin is 9cm

Step-by-step explanation:

The first thing we need to do here is to calculate the volume of the cylindrical tin.

Mathematically, that would be;

V = pi * r^2 * h

now, r = d/2 = 12/2 = 6cm

h = 14 cm

Thus the volume would be;

V = 22/7 * 14 * 6^2 = 1,584 cm^3

Now, to find the the depth of the tin, we have to realize that the content of the cylinder should fill in the tin to a particular height.

Now let’s say the height of the tin is x, this means its volume which is l * b * h = 16 * 11 * x = 176x

So the depth x would be;

176x = 1584

x = 1584/176 = 9 cm

5 0
3 years ago
Georgia needed some batteries for her flashlights. She bought 4 batteries for $6.80. At that rate, how much would 10 batteries c
Lina20 [59]

Answer:

B $17.00

Step-by-step explanation:

8 batteries are 13.60

6.80 split in half to become 2 is 3.40 and then I added 13.60 plus 3.40 to get 17.00

4 0
3 years ago
Geometry math question no Guessing Please help
Norma-Jean [14]

Triangle on the right is 45 45 90 right triangle

Ratio of leg : hypo = a :a√2

Given hypo = 6 so leg = 3√2

As you know leg of triangle on the right is the hypo of the triangle on the left

Triangle on the left is 30 60 90 right triangle

Ratio of short leg :hypo = a : 2a

You know hypo = 3√2 so leg x = (3√2 ) / 2 = 3√2 / 2

Answer is A. 3√2 / 2

7 0
4 years ago
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