Using a tape measure Becky Jo found that the circumference of the great redwood was 900cm. She estimated that its diameter was 300cm. Was her estimate a little too large or a little too small? Why?

Answers

Answer 1

Answer: The length of the circle - the product of the diameter and the number Pi
l = dπ
l = 900cm
π ≈ 3,1415 przyjmiemy wartość 3
900cm = d* 3 [:3
d = 300cm
Becky rounded value of Pi , hence the difference in result

More accurate calculation

l = d*π
900cm = d*3,1415
d = 900cm : 3,1415 = 286,49cm

Becky overestimated the outcome

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25 pts! Who wants brainliest? answer this question

Answers

Answer:

The answer is 7root 5

Step-by-step explanation:

Tea from Britain costs $2.50 to produce. It is sold in America at a price of $3.50 (to make a profit of $1.00) Tea in America costs $3.00 to produce. It is sold at a price of $4.00 (to make a profit of $1.00) If there is a 50% Tariff on tea, who would you buy your tea from?

Answers

Answer:

I would buy my tea from Britain.

The volume of a cylinder is 32.25 cubic inches. If a cone has the same height and radius as the cylinder, what is its volume?8.06 cu. in.

10.75 cu. in.

21.5 cu. in.

32.25 cu. in.

Answers

10.75 cu.in., as volume of a cylinder is 3 times bigger than volume of a cone, according to their equations:
$V_(cylinder) = \pi^(2) rh V_(cone) = (1)/(3) \pi^(2) rh$

Answer:

option 2nd is correct

volume of a cone is, 10.75 cubic inches

Step-by-step explanation:

Volume of a cone (V) is given by:

$V = (1)/(3) \pi r^2h$ ......[1]

where,

r is the radius of the cone and h is the height of the cone respectively.

As per the statement:

The volume of a cylinder is 32.25 cubic inches.

Volume of a cylinder is given by:

$\text{Volume of a cylinder} = \pi r^2h$

⇒ $32.25 = 3.14 \cdot r^2h$

Divide both side by 3.14 we have;

$10.27 =(r')^2(h')$

$r</p><p>o(r')^2(h)= 10.27$

It is also given that a cone has the same height and radius as the cylinder.

⇒ $r' = r$ and $h' = h$

⇒ $r^2h = 10.27$

Using formula [1] we have;

$V = (1)/(3) \cdot 3.14 \cdot 10.27$

Simplify:

$V = 10.75$ cubic inches

therefore, volume of a cone is, 10.75 cubic inches

Help me bruhTwo waves with amplitudes of 75 units and 74 units arrive at a point in a medium simultaneously. If the two waves are out of phase with each other, what
is the resultant amplitude of the wave?

a. 74 units

b. 1 unit

c. 75 units

d. m149 units

Answers

I'm pretty sure the answer is B, cuz they'd crash together and become 1unit instead of two

If IJ = 15 and JK = 8, what is IK?

Answers

l -> j = 15
j -> k = 8

i - > k = ?

lj + ik = 15 +8
= 23

-3(4x+2)=18 WHAT IS IT????

Answers

Answer:

x = -2

Step-by-step explanation:

-3(4x + 2) = 18

Divide by -3:

-3(4x + 2) / -3 = 18 / -3

4x + 2 = -6

Subtract 2:

4x + 2 - 2 = -6 - 2

4x = -8

Divide by 4:

4x / 4 = -8 / 4

x = -2

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