A North Face Jacket costs $65. It is on sale for 20% off. What is the amount of discount?

Mathematics

1 answer:

sineoko [7]2 years ago

5 0

The answer should be $13 !! hope that helps

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Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi

9966 [12]

They will be forming a right triangle.

long leg is the height of Lyra. 22 meters high from the entrance.
short leg is the distance of Donna. 50 meters from the entrance.
We need to solve for the hypotenuse or the range of communication.

a² + b² = c²
22² + 50² = c²
484 + 2500 = c²
2,984 = c²
√2,984 = √c²
54.63 = c

The range of communication for the two radios is 55 meters.

8 0

3 years ago

What is the mean for 34,56,78,98 ?

Naya [18.7K]

Answer:

The answer is 66.5

Step-by-step explanation:

To get the mean, you add all the numbers together, then you divide by the # of numbers their are. So you add 34,56,78,98, and then you divide by 4.

6 0

3 years ago

The height of a cone is equal to the diameter of the base. What expression represents the volume of the cone, in cubic units?

Maurinko [17]

By definition, the volume of a cone is given by:
$V = (1/3) * (\pi) * (r ^ 2) * (h)
$
Where,
r: radius of the circular base
h: height of the cone
Let's define a variable:
x: diameter of the base
We have then that the radio is:
$r = x / 2
$
The height is:
$h = x
$
Substituting values:
$V = (1/3) * (\pi) * ((x / 2) ^ 2) * (x)
$
Rewriting:
$V = (1/3) * (\pi) * (x ^ 2/4) * (x)

V = (1/12) * (\pi) * (x ^ 3)$
Answer:
An expression that represents the volume of the cone, in cubic units is:
$V = (1/12) * (\pi) * (x ^ 3)$