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3 years ago

Find the volume of the figure. If necessary, round the answer to the nearest whole number.

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

6 0

Answer:

V = 108 ft³

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Volume of a Rectangular Prism Formula: V = lwh

l is length
w is width
h is height

Step-by-step explanation:

Step 1: Define

Identify variables

l = 4 ft

w = 3 ft

h = 9 ft

Step 2: Find Volume

Substitute in variables [Volume of a Rectangular Prism Formula]: V = (4 ft)(3 ft)(9 ft)
Evaluate [Order of Operations]: V = 108 ft³

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Find the area of the following circle.

Deffense [45]

Answer:

113.04

Step-by-step explanation:

I flipen love this but anyways so a=start with your formula which would be

A= $\pi r^{2}$

so then you just subsitute which then would be

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113.04

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3 years ago

Please help me with 1 and 2

Fed [463]

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3 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

4 years ago

Help pls will give brainliest

Dahasolnce [82]

Answer:

hello,

answer C

Step-by-step explanation:

area of the rectangle=2b*b=2b²

area of the half cercle= $\\\dfrac{\pi*(\frac{c}{2})^2}{2} =\dfrac{\pi*c^2}{8} \\$

Area in blue= 2b²-πc²/8

8 0

3 years ago

How many 3/4-ounce servings of rice are in an 8 1/4-ounce bag of rice ?

nadezda [96]

Number of servings = 8 1/4 ÷ 3/4

   = 33/4 ÷ 3/4

   = 33/4 × 4/3 = 11

   = 11 servings.

4 0

3 years ago