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3 years ago

Find the volume please helpppp

Mathematics

1 answer:

pentagon [3]3 years ago

4 0

The formula to solve a cylinder is V=πr²h

So, round pi to 3.14

We must plug in for the radius (r) in this equation. To do this, we must half up the diameter, 5. 5/2 = 2.5

6 is height

V=3.14 * 2.5² * 6

V=117.81 we must round though to tenth, and that would be:

Answer V=117.8m³

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Answer the questions from the picture Step by step

andre [41]

Answer:

6 = 4 mins

Step-by-step explanation:

you have to take 200 and 50 and divide them

200 divided by 50 =4 and you have to tack mins to the end of it

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2 years ago

If f x = 7x 2 − 4x − 10, then f −3 =?

Schach [20]

Answer:

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3 years ago

If f(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D" id="TexFormula1" title="\frac{1}{9}" alt="\frac{1}{9}" align=

boyakko [2]

Answer:

Solution given:

f(x) = $\frac{1}{9}$ x-2

let f(x)=y

y = $\frac{1}{9}$ x-2

interchanging role of x and y

x= $\frac{1}{9}$ y-2

x+2= $\frac{1}{9}$ y

y=9(x+2)

y=9x+18

F-¹(x)=9x+18

and

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6 0

3 years ago

A conveyor belt carries supplies from the first floor to the second floor, which is 26 feet higher. The belt makes a 60° angle w

tamaranim1 [39]

<h3>Answer:</h3>

30 ft; 0.4 min

<h3>Step-by-step explanation:</h3>

The mnemonic SOH CAH TOA reminds you ...

... Sin = Opposite/Hypotenuse

Here, the angle of elevation is opposite the triangle side representing the distance between floors. The hypotenuse is the length of the conveyor belt. Rearranging the formula (by muliplying by Hypotenuse/Sin), we get ...

... Hypotenuse = Opposite/Sin

Filling in the values from this problem, we have ...

... length of conveyor = (26 ft)/sin(60°) ≈ 30 ft

The time it takes to travel that distance is given by ...

... time = distance/speed

... time = (30 ft)/(75 ft/min) = 2/5 min = 0.4 min

3 0

3 years ago

Kelli and Karl each have a job. Kelli earns $20 an hour. She also receives a $100 weekly bonus.

Firlakuza [10]

Answer: When they work 10 hours each, they both make $300.

kelli y = 20x + 100
karl y = 25x + 50

substitution:

y = 20x + 100

25x + 50 = 20x + 100
-20x -50 -20x -50
--------------------------------
5x = 50
5 5

x = 10

(Then plug into any equation)
y = 25x + 50
y = 25(10) + 50
y = 300

When they work 10 hours each, they both make $300.

5 0

3 years ago