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Rina8888 [55]
2 years ago
8

Find the cosine of ∠J.

Mathematics
1 answer:
brilliants [131]2 years ago
3 0

Answer:

√94

Step-by-step explanation:

i think that is the answer

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You have 400 feet of fencing to enclose a rectangular plot. Find the length and width of the plot that will maximize the area. W
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Well, we can denote L and W for the length and width respectively. Lets say the A is the area, we have: 1. A=(L × W) as well as 2. 2(L+W)=400. We rearrange the second equation to get 3. W=200-L. From this, we can see that 0<L<200. Substitute the third equation into the first to get A=(200L-L²). put this formula into the scientific calculator and you will find a parabola with a maximum. That would be the maximum area of the enclosed area. Alternatively, we can say that L is between 0 and 200 when the area equals 0. (The graph you find will be  area against length). As the maximum is generally found halfway, we substitute 100 into the equation and we end up with 10000.

Hope this helps.
6 0
3 years ago
The height of Maury’s room is 8.4 feet from the floor to the ceiling. Maury wants to install a ceiling fan that hangs 1.875 feet
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The height of Maury's room is 8.4 ans maury is 6.6 feet tall. The distance between the celling and Maury's head is exactly 1.8. She wants to hang the celling fan 1.875 feet away from the celling that is all the head room she has the celling fan would hit her head.
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3 years ago
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A school staff meeting had 36 teachers in attendance, 75% of whom were first-year teachers. How many first-year teachers were in
natita [175]

Answer:

27

Step-by-step explanation:

First, lets write this down, 36 x 75%, then lets convert the percent: 36 x .75, multiply! And we get 27.

8 0
3 years ago
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If a rectangular prism with a length of 12 feet and width of 9 feet has a surface area of 930 square feet, find its height.
MaRussiya [10]

Answer:

17 feet

Step-by-step explanation:

A=2(wl+hl+hw)

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Picture attached thx
lisabon 2012 [21]
2m = m + 5 / 4
8m = m + 5
7m = 5
m = 5 / 7
5 0
2 years ago
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