3 years ago

To the nearest foot, what is the diameter of a circle whose circumference is 47.1 feet?

Mathematics

1 answer:

Trava [24]3 years ago

7 0

Answer:

94.2

Step-by-step explanation:

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The area of the base of a rectangular prisim four and three fourths and the height of two and one third what is the volume

VikaD [51]

Data:
$A_{base} = 4 \frac{3}{4} = \frac{4*4+3}{4} = \frac{16+3}{4} \to A_{base} = \frac{19}{4}$

$h (height) = 2 \frac{1}{3} = \frac{3*2+1}{3} = \frac{6+1}{3} \to h (height) = \frac{7}{3}$
$v (volume) = ?$

Formula: $V = A_{b}*h$

Solving:
$V = A_{b}*h$
$V = \frac{19}{4} * \frac{7}{3}$
$V = \frac{133}{12}$
$V = 11.08333....$
$\boxed{\boxed{V \approx 11.08}}\end{array}}\qquad\quad\checkmark$

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3 years ago

A project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability

alex41 [277]

Answer:

the mean is 3

answer choice D

Step-by-step explanation:

60/20

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3 years ago

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How do you solve that?

Aleks [24]

Put it in the form

ax^2 + bx + c = 0

use the quadratic formula

x = [ -b + sqrt( b^2 - 4 ac ) ] / 2a

x = [ -b - sqrt( b^2 - 4 ac ) ] / 2a

7v^2 - 7v - 22 = 0

a = 7
b = -7
c = -22

v = [ 7 + sqrt ( 49 - 4 * 7 ( -22) ] / 2 * 7 = 2.34

v = [ 7 - sqrt ( 49 - 4 * 7 ( -22) ] / 2 * 7 = -1.34

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3 years ago

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Help I do not understand

tamaranim1 [39]

$\bf \begin{cases}
f(x)=\cfrac{x}{x-9}
\\ \quad \\
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\end{cases}\qquad f(x)+g(x)\implies \cfrac{x}{x-9}+\cfrac{-x}{x-3}$

get their LCD, like you'd with any other fractions, and add them up

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3 years ago

yasmine wants to swim 50 miles . She plans to swim 1/4 mile each day. How many days will it take her to swim 50 miles?

Sav [38]

50 divide by .25 = 200 days

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3 years ago