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Lera25 [3.4K]
3 years ago
9

Please help: Find the volume of the solid. Use 3.14 for π.

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0

Answer:

3391.2

Step-by-step explanation:

The formula for the volume of a cylinder is

pi * r^2 * h

Plugging the values in we get

3.14 * 6^2 * 30

= 3.14 * 36 * 30

= 3391.2

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A machine made 3 1/2 pencils in 1/6 of a minute. It made at a rate of how many per minute?
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Answer:

21 per min

Step-by-step explanation:

8 0
3 years ago
Together, Tim and Tom have $2.40. Tim has three times as much as Tom. How much does each have?
Phoenix [80]
X = how much Tim has
y = how much Tom has
x + y = 2.40
x = 3y
Substitute 3y for x
3y + y = 2.40
4y = 2.40
y = 0.60
Plug in y value into previous equation
x = 3(0.60)
x = 1.80
ANSWERS: Tim has $1.80 and Tom has $0.60
8 0
3 years ago
Find the missing side of this right<br> triangle.<br> Х<br> 6<br> 10
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X² = 10² + 6²
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8 0
3 years ago
Easy Sample Ap graphing 50pts! (Easy points!!) (ASAP) (URGENT) (Please check my other questions)​ Please
snow_lady [41]

Answer:

a)  See attachment 1.

b)  t² and D

c)  See attachment 2.

d)  g = 9.8 m/s² (1 d.p.)

Step-by-step explanation:

<h3><u>Part (a)</u></h3>

See attachment 1.  The line of best fit is shown in red.

<h3><u>Part (b)</u></h3>

The quantities the student should graph in order to produce a <u>linear relationship</u> between the two quantities are t² and D.

<h3><u>Part (c)</u></h3>

Make a table of values of t² and D:

\begin{array}{|l|l|l|l|l|l|}\cline{1-6} \rm t^2& 0.0196& 0.1024& 0.2116 & 0.3481& 0.3969\\\cline{1-6} \rm D & 0.10 & 0.50& 1.00 & 1.70 & 2.00\\\cline{1-6}\end{array}

<u>Plot</u> a graph of D against t² and draw a line of best fit (see attachment 2).

<h3><u>Part (d)</u></h3>

From inspection of the graph, the line of best fit passes through the origin (0, 0) and (0.1024, 5.0).  Therefore, use these two points to find the slope of the line:

\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{0.5-0}{0.1024-0}=4.8828125...\:\rm m/s^2

Therefore:

\rm \implies \dfrac{1}{2}g=4.8828125...\:\rm m/s^2

\rm \implies g=2 \cdot 4.8828125...\:\rm m/s^2

\rm \implies g=9.8\:\rm m/s^2\:(1\:d.p.)

5 0
2 years ago
How many solutions does 6-2(3-2x)=-4(3-x) have ?
aliina [53]

Answer:

Step-by-step explanation:

The easiest way to determine the answer to your question is to evaluate the

discriminant

For a quadratic in the form:

y

=

a

x

2

+

b

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+

c

the

discriminant

) is equal to

b

2

−

4

a

c

For your example

4

x

2

+

8

x

+

3

=

0

The

discriminant

is

Δ

=

8

2

−

4

(

4

)

(

3

)

2

(

4

)

3 0
3 years ago
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