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Ivenika [448]
2 years ago
10

Find the missing side lengths the triangle is 30-60-90

Mathematics
1 answer:
trapecia [35]2 years ago
7 0

Answer:

y= 4

x=8

Step-by-step explanation:

30-60-90 rule. the side opposite of 30 degrees is y, the side opposite of 90 degrees is 2y, and the side opposite of 60 degrees is y  \sqrt{3}. since 4 is next to the square root that makes it y. y = 4 and 2y= 8.

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Expand the expression 2/5 (2d+3)
Jlenok [28]

Hello from MrBillDoesMath!

Answer:

(4/5)d + 6/5


Discussion:

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2(2d+3)/5  =

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(4/5)d + 6/5


Thank you,

MrB

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3 years ago
If the theater has 180 seats in 20 rows, then how many seats are there in 4 rows?
UkoKoshka [18]

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3 years ago
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Solve for f. Show your work! 8=f-(13-2)
Nana76 [90]

Answer:

So F=19

Step-by-step explanation:

8=f-(13-2)

8=f-11

+11  +11       You plus 11 by both sides

19=f

You can check you answer by plugging it in

8=19-(13-2)

your answer would still be 19

8 0
3 years ago
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igomit [66]

Answer:

3.6 pounds

Step-by-step explanation:

4 0
3 years ago
A rain barrel is full of water and used to water the garden. The rain barrel loses water at the rate 2.5 gallons of water per mi
soldier1979 [14.2K]
Answer: <span>y - 37.5 = 2.5 ( x - 7)

Explanation:

1) The point-slope form is has this form:

 y - y1 = m (x - x1)

Where m is the slope or rate of change and x1, y1 are the coordinates of the point.

2) you are told that the the rate of change of water (m) is 2.5

m = 2.5

3) The point is given by that after 7 min the rain barrel contains 37.5 gallons. This is:

x1 = 7
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</span>4) Replace those value in the point-slope model:

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That is the point-slope model or equation.

4 0
3 years ago
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