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natta225 [31]
3 years ago
15

A giant pie is created in an attempt to break a world record for baking. The pie is shown below: A circle is shown with a centra

l angle marked 45 degrees and the diameter marked 15 feet.
Mathematics
2 answers:
seraphim [82]3 years ago
5 0

Answer:

22.08 FT SQUARED is the correct answer for this question.

22.08 ft2

24.45 ft2

26.32 ft2

28.97 ft2

Points earned : 1

Step-by-step explanation:

lisabon 2012 [21]3 years ago
4 0

Answer:

a. 22.08 ft^{2

Step-by-step explanation:

d = diameter = 15ft; r = (1/2)d = 7.5ft; A=area

So, A = (π) × r^{2}

A = (π) × (7.5ft)^{2}

A = (π) × (56.25ft^{2})

The entire circle is 360°, so 45 is \frac{1}{8}.

A(slice) = (\frac{56.25}{8}) × ft^{2} π

A(slice) = 7.03 × (π) × ft^{2}

(Please vote me Brainliest if this helped!)

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A wheel with a radius of 19 meters is moving forward at 164.95 meters per second. How fast is the wheel rotating in radians per
yan [13]

Answer:

8.68 radians per second.

Step-by-step explanation:

The circumference of the wheel is 2 π r

= 38π meters.

So that is 164.95 / 38π of full turns of the wheel.

1 turn of the wheel = 2π radians , so the answer is

(164.95 / 38π)  * 2π  

= 164.95 / 19

= 8.68 radians per second.

5 0
2 years ago
A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. The
lina2011 [118]

Answer:

x is the number of large boxes shipped

y is the number of small boxes shipped

7 large boxes were shipped

14 small boxes were shipped

Step-by-step explanation:

The volume of each small box is 6 cubic feet and the volume of each large box is 12 cubic feet.

There were twice as many small boxes shipped as large boxes shipped : so if x large boxes , and y small boxes were shipped, then ,y =  2x small boxes were also shipped.

the total volume of all boxes was 168 cubic feet, which means:

y = 2x ...................(1)

6y + 12x = 168 .......(2),

then, replace y to 2x in the second equation

6(2x) + 12(x) = 168,

12x + 12x = 168,

24x = 168,

x = \frac{168}{24} = 7,

since the small boxes = 2x,

2(7) = 14 boxes, so there are 14 small boxes being shipped,

and x = 7, so there are 7 large boxes being shipped, since x is the number of large boxes being shipped.

5 0
3 years ago
Triangle ABC was transformed to be triangle DBP using one
Luba_88 [7]

Answer:

reflection

Step-by-step explanation:

this is a reflection off y=-x

5 0
3 years ago
What do two equivalent expressions ALWAYS have in common?
Nadya [2.5K]
It’s c the same constant. Have a nice day!
6 0
3 years ago
cam hits the bullseye in 8 darts out of 15 throws. what is the experimental probability that came next throws will hit the bulls
Zigmanuir [339]

Answer:

A darts player practices throwing a dart at the bull’s eye on a dart board. Her probability of hitting the bull’s eye for each throw is 0.2.

(a) Find the probability that she is successful for the first time on the third throw:

The number F of unsuccessful throws till the first bull’s eye follows a geometric

distribution with probability of success q = 0.2 and probability of failure p = 0.8.

If the first bull’s eye is on the third throw, there must be two failures:

P(F = 2) = p

2

q = (0.8)2

(0.2) = 0.128.

(b) Find the probability that she will have at least three failures before her first

success.

We want the probability of F ≥ 3. This can be found in two ways:

P(F ≥ 3) = P(F = 3) + P(F = 4) + P(F = 5) + P(F = 6) + . . .

= p

3

q + p

4

q + p

5

q + p

6

q + . . . (geometric series with ratio p)

=

p

3

q

1 − p

=

(0.8)3

(0.2)

1 − 0.8

= (0.8)3 = 0.512.

Alternatively,

P(F ≥ 3) = 1 − (P(F = 0) + P(F = 1) + P(F = 2))

= 1 − (q + pq + p

2

q)

= 1 − (0.2)(1 + 0.8 + (0.8)2

)

= 1 − 0.488 = 0.512.

(c) How many throws on average will fail before she hits bull’s eye?

Since p = 0.8 and q = 0.2, the expected number of failures before the first success

is

E[F] = p

q

=

0.8

0.2

= 4.

7 0
2 years ago
Read 2 more answers
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