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Korvikt [17]
3 years ago
11

Do 18 please ppl i need to get a good grade

Mathematics
1 answer:
Nataly [62]3 years ago
4 0
I believe the answer is 52.80 

Also 15 is, 7a + 18. Hope this helps :D

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It snowed 8 feet of snow in 30 1/2 hours. How much did it snow in 1 hour? Show all work.
faust18 [17]

Answer:

approx 1/4 inch of snow in 1 hour

Step-by-step explanation:

set up a proportion and cross-multiply:

8 / 30.5 = x / 1

30.5x = 8

x = 8/30.5

x = 0.26

8 0
3 years ago
Hurry please What is the sum of the series below?
Nina [5.8K]

Answer: C. 218085

Step-by-step explanation: Scientific calculator helps.

6 0
3 years ago
Read 2 more answers
Lydia graphed ΔDEF at the coordinates D (−2, −1), E (−2, 2), and F (0, 0). She thinks ΔDEF is a right triangle. Is Lydia's asser
alukav5142 [94]

Answer:

No; the slopes of segment EF and segment DF are not opposite reciprocals.

Step-by-step explanation:

The slope between two points O(e, f) and X (g,h) is given as:

slope\ of\ |OX|=\frac{h-f}{g-e}

The slopes of segment EF and segment DF are given below:

slope\ of\ |EF|=\frac{0-2}{0-(-2)}=-1\\\\slope\ of\ |DF|=\frac{0-(-2)}{0-(-1)}=2\\

For triangle DEF to be a right triangle, DF and EF are supposed to be perpendicular to each other. Two line are said to be perpendicular if the product of their slope is -1, i.e the slope of one line is the negative reciprocal (opposite reciprocal) of the other line.

Since the slope of DF and EF are not opposite reciprocals,  ΔDEF is not a right triangle.

3 0
3 years ago
A baseball player reaches first base 3 out of 10 times he is at bat. If the baseball player bats 80 times, about how many times
Amanda [17]

Answer:

I think the answer is 24.

Step-by-step explanation:

I think the answer is 24 because if the baseball player hit the bat and ran the base 3 out of 10 times, then you would multiply 8 x 3 to get 24 out of 80. I don't know if this is the correct answer, this is just what I think it may be.

4 0
3 years ago
Help with this math equation ?
Pavel [41]
I think the answer is 1x+3=7
8 0
3 years ago
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