PLEASE ANSWER!!! Find the value of x in the diagram below.

Mathematics

1 answer:

BigorU [14]3 years ago

8 0

It should be 180 degrees cuz “x” is a flat line

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Someone plz answer the 12th question fast plz

jek_recluse [69]

Answer:

2000.8 m or 2km height

(π 0.07^2)×2000 = 30.78 m^3.

Step-by-step explanation:

The total surface area of a cylinder of radius 7 cm is 880 m^2. Find the height and the volume of the cylinder.

"A cylinder is flat" according to curvature theory (unlike a sphere, where triangle angles can add to more than 180°). So unwrap it and compute area as circumference times height, or height as area divided by circumference. 880m^2 / (2 π 0.07 m) gives height = 2000.8 m or 2km (!!)

The volume of a cylinder is cross section area times height. (π 0.07^2)×2000m = 30.78 m^3.

4 0

3 years ago

The quotient of 5 subtracted from a number and 7 is 4.2?

klasskru [66]

No, because 5 subtracted from 7 is 4. 7-5=4

5 0

3 years ago

ok so if you have 3 and 1/4 pizza and want to subtract 3/4 out of it,and get 3x more slices then you had from a friend after sub

Brilliant_brown [7]

Answer:

You have 2 and 1/2 pizzas and your friend has 5/6 of a pizza.

Step-by-step explanation:

You have 3 1/4 pizzas. If you get rid of 3/4 of a pizza, you will end up with 2 2/4 pizzas.

To make it easier, you can just change the values into improper fractions: 3 1/4 = 13/4

13/4 - 3/4 = 10/4

10/4 = 2 2/4 pizzas

(2 2/4 = 2 1/2)

Anyways! You now have 2 and a half pizzas. You have 3 times the amount of pizza that your friend has. In other words, your friend has 1/3 the amount of pizza that you have. You can solve for this in two ways, whichever way you solve it is up to you.

You can solve this problem by dividing the amount of food you have by 3: $\frac{2\frac{1}{2} }{3}$ which equals 0.8333... (the 3 is repeating). But you can just keep your final answer in fraction form if you want to: $\frac{2.5}{3} = \frac{5}{6}$
You can solve this problem by multiplying 1/3 to the amount of food you have: $\frac{1}{3} * 2 \frac{2}{4}\\=\frac{10}{12}\\ =\frac{5}{6}$