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3 years ago

Please help I don’t understand it

Mathematics

2 answers:

-BARSIC- [3]3 years ago

5 0

Slope: -1/3
y-int: -1
Equation: y= -1/3x + -1 or y= -1/3x- 1

aleksklad [387]3 years ago

5 0

Slope 1/3
Y 1
Equation 1/3x 1

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The diameter of a cylinder is 4 centimeters. The height is 12 centimeters. Using 3.14 for pi, what is the volume of the cylinder

Dovator [93]

Answer:

The volume of the cylinder with given height and radius is 150.72 centimeters³ .

Step-by-step explanation:

Given as :

the height of cylinder = H = 12 centimeters

The diameter of cylinder = D = 4 centimeters

So The radius of cylinder = R = $\dfrac{\textrm Diameter}{2}$

Or, R = $\frac{4}{2}$

I.e R = 2 cm

The volume of cylinder is given as V = $\pi$ ×R²×H

where R is the radius and H is the height

So, V = 3.14×(2)²×12

Or, V = 3.14×48

∴ V = 150.72 centimeters³

So, The volume is 150.72 centimeters³

Hence The volume of the cylinder with given height and radius is 150.72 centimeters³ . Answer

8 0

3 years ago

Ari's teacher says he may have his report grade based on either the mean or the median of his last six test scores. 88%, 73%, 97

marta [7]

Both the mean and median
Median 80+88= 168/2= 84%
Mean 504/6= 84%

73%,
76%,
80%
88%,
90%,
97%,

4 0

4 years ago

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In the diagram, the only figure that could be parallel to linec IS

Alina [70]

Answer:

Could you post a picture of the diagram? One way to check is to graph them and see if the intersect, or see if they do any transversal behavior, or if the there is a line between the parallel lines that is perpendicular to both.

Step-by-step explanation:

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3 years ago

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At thw movies,Aaron buys popcorn for $5.25 and a bottle of water for $2.50. He pays with a $10 dollar bill. How much change shou

4vir4ik [10]

Answer:

5.25 + 2.50 = 7.75. 10 - 7.75 =2.25

Step-by-step explanation:

7 0

4 years ago

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I would really appreciate help with the following, along with work shown so I can understand how these were solved.

Alja [10]

First, you have to know the double angle formula:

sin 2A = 2 sin A cos A

cos 2A = cos² A − sin² A = 2 cos² A − 1 = 1 − 2 sin² A

tan 2A = 2 tan A / (1 − tan² A)

Next, find the other leg: 17^2-15^=64, √64 is 8, so the unknown leg length is 8.

sinα=15/17, cosα=8/17, tanα=15/8

sinβ=8/17, cosβ15/17, tanβ=8/15

Plug these values in the above formula, you'll have your answers.

For the half angles, know the half-angle formula:

sin(B/2) = ± √(1 − cos B)/2

cos(B/2) = ± √(1 + cos B)/2

tan(B/2) = (1 − cos B) / sin B = sin B / (1 + cos B)

refer to this website for details:

https://brownmath.com/twt/double.htm

For the power reduction formula, please search for it. I tried to copy and paste here, but it wouldn't paste.

for number 4, factor the quadratic equation into (cscx-8)(cscx+1)=0

cscx=8 or cscx=-1

You may not have the csc button on your calculator. Recall that csc is 1/sin, so sinx=1/8 or sinx=-1, so x is either 7.18 or 270 degrees

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3 years ago