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Fiesta28 [93]
2 years ago
6

Please help me with this question look at the image. I will mark the brainiest.

Mathematics
1 answer:
kirill [66]2 years ago
8 0

Answer:

5 ft

Step-by-step explanation:

trapezoid area = ((base + base) / 2) height

25.5 = ((3.2+7)/2) height

25.5= 10.2/2height

25.5/5.1

height = 5

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The rate at which rain accumulates in a bucket is modeled by the function r given by r(t)=10t−t^2, where r(t) is measured in mil
mars1129 [50]

Answer:

36 milliliters of rain.

Step-by-step explanation:

The rate at which rain accumluated in a bucket is given by the function:

r(t)=10t-t^2

Where r(t) is measured in milliliters per minute.

We want to find the total accumulation of rain from <em>t</em> = 0 to <em>t</em> = 3.

We can use the Net Change Theorem. So, we will integrate function <em>r</em> from <em>t</em> = 0 to <em>t</em> = 3:

\displaystyle \int_0^3r(t)\, dt

Substitute:

=\displaystyle \int_0^3 10t-t^2\, dt

Integrate:

\displaystyle =5t^2-\frac{1}{3}t^3\Big|_0^3

Evaluate:

\displaystyle =(5(3)^2-\frac{1}{3}(3)^3)-(5(0)^2-\frac{1}{3}(0)^3)=36\text{ milliliters}

36 milliliters of rain accumulated in the bucket from time <em>t</em> = 0 to <em>t</em> = 3.

4 0
3 years ago
Help me please <br> R=e/i solve for i
Agata [3.3K]

Answer:

-ei

Step-by-step explanation:

i=\sqrt{-1}

8 0
4 years ago
Write an equation for each slope following the formula: y=mx+b
Mrrafil [7]
A) y = 5/3x - 9
B) y = -x + 3
C) y = -2/7x + 1
D) y = 5x + 4
4 0
3 years ago
What is the value of x?
Sauron [17]

Answer:

85°

Step-by-step explanation:

The triangle pictured is an isosceles triangle because side KJ = LJ.

this means that ∠JKL = ∠JLK = x°

Also recall that all interior angles of a triangle add up to 180°

Hence,

180° =  ∠JKL + ∠JLK + ∠KJL

180 =  x + x + 10

180 = 2x + 10  (subtract 10 from both sides and rearrange)

2x = 180 - 10

2x = 170 (divide both sides by 2)

x = 170 / 2 = 85°

8 0
3 years ago
If you were asked to load 225 bixes on a truck , and boxes are crated. With each nine boxes how many crates would you need to lo
Lubov Fominskaja [6]
225 divided by 9 to figure out the number of crates needed.
225/9=25

So 25 crates are needed to load all boxes on the truck.
4 0
4 years ago
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