3 years ago

If a circle has a diameter of two what would the area be

Mathematics

1 answer:

Feliz [49]3 years ago

4 0

Answer:

3.14

Step-by-step explanation:

d=2

A= pi*r^2 = pi*(d/2)^2 = pi*(2/2)^2= pi*1 =pi =3.14

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A cone has a height of 2.5 in. and a radius of 5 in. What is the volume of the cone? (Use 3.14 for Pi. Round the answer to two d

Stells [14]

Answer:

$V =\frac{1}{3} \pi r^2 h$

And replacing we got:

$V = \frac{1}{3} (3.14) (5in)^2 (2.5in) = 65.42 in^3$

And the best option would be:

65.42 Inches cubed

Step-by-step explanation:

For this case we have the following info given:

$h =2.5 in$ represent the height of the cone

$r = 5 in$ represent the radius

And the volume of the cone is given by;

$V =\frac{1}{3} \pi r^2 h$

And replacing we got:

$V = \frac{1}{3} (3.14) (5in)^2 (2.5in) = 65.42 in^3$

And the best option would be:

65.42 Inches cubed

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3 years ago

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What is the midpoint of a line segment with the endpoints (8 -3) and (-5 -9)

Nadya [2.5K]

Answer:

(1.5, -6)

Step-by-step explanation:

To find the x coordinate of the midpoint

(x1+x2)/2 = (8+-5)/2 = 3/2 = 1.5

To find the y coordinate of the midpoint

(y1+y2)/2 = (-3+-9)/2 = -12/2 = -6

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3 years ago

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How many numbers between 1 and 100 are divisible by 3 or 2

Zielflug [23.3K]

Answer:

By 3: 33 numbers

By 2: 49 numbers

Both: 66 numbers

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4 years ago

Which expression is equivalent to 3a2 + 6a + 5a2?

Vaselesa [24]

$\begin{gathered} 3a^2+6a+5a^2 \\ \text{collect like terms} \\ 3a^2+5a^2+6a \\ 8a^2+6a \end{gathered}$

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1 year ago

Domain and range of -3x^2+16x+3

Zarrin [17]

Answer:

＜=16

Step-by-step explanation:

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3 years ago