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2 years ago

A bicycle tire has a radius of 15 inches. What is the circumference of the tire? Round to the nearest tenth

2 answers:

5 0

$C = 2\pi\ r$ where C = circumfrence, r = radius, and $\pi\approx\ 3.14$ .

Plug in 15 for r (our radius).
$C = 2\pi\times15$

2 × 15 = 30
$C = 30\pi$

Use 3.14 for $\pi$ .
$C \approx 30\times3.14$
$C \approx 94.2$

Scorpion4ik [409]2 years ago

3 0

To find the circumference of a circle, we use the formula
C = πd
The diameter is always double the radius
15 x 2 = 30 inches
C = 30 x π
30π = 94.277796...

To round to the nearest 10th, we look at the number after the tenth decimal place
94.2477796
If it is 5 or above, we round up
If it is 4 or less, we round down
4 < 5 therefore we round down

94.2 inches

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A right triangle is displayed.

Mazyrski [523]

Answer:

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2 years ago

What is the quotient of -3/8and-1/3?

hodyreva [135]

Answer:

9/8

Step-by-step explanation:

the quotient of -3/8 and -1/3

= (-3/8) / (-1/3)

= (-3/8) x (-3/1)

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2 years ago

A stone which is dropped into a dry well hits the bottom in 2.2s how deep is the well. take g=10m/s

Papessa [141]

Answer:

23.7m

Step-by-step explanation:

Given parameters:

Time taken = 2.2s

Acceleration due to gravity = 10m/s

Unknown:

Depth of the well = ?

Solution:

To solve this problem, we simply apply one of the motion equations;

S = ut + $\frac{1}{2}$ gt²

where S = depth of the well

u = initial velocity

t = time taken

g = acceleration due to gravity

Input the parameters and solve for S;

Note initial velocity = 0;

S = $\frac{1}{2}$ x 9.8 x 2.2²

S = 23.7m

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3 years ago

Jack is packing snacks for him and his three brothers. He bought 10 1/2 ounces of pretzels. He wants to put the pretzels into ba

Llana [10]

Answer:

3.5

Step-by-step explanation:

total pretzel=10 1/2 or10.5

no. of brother = 3

now,

10.5 pretzel for each borther= 10.5/3

=3.5 <u>ans</u>

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2 years ago

The hypotenuse of a 30- 60- 90 triangle has length 17. what is the length of the side opposite the 60 angle? if necessary, round

oksano4ka [1.4K]

Side opposite 30 = 1/2(hypotenuse) ⇒ 1/2(17) = 8.5
Side opposite 60 = $\sqrt{3}$ (side opposite 30) ⇒ $8.5 \sqrt{3}$ = 14.72 when rounded 2 decimal places

8 0

3 years ago