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3 years ago

How do I explain the steps to the question involving the pie?

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

4 0

Answer:

Area = pi x radius squared

the radius is 2.39 so that's squared that is 5.7121pi

Step-by-step explanation:

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Solve. - 7x^2+ 7x+1= -8

mr Goodwill [35]

Answer:

i think it is 1.127

Step-by-step explanation:

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2 years ago

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Find x in this 45°-45°-90° triangle. x =

Leokris [45]

Answer:

x = 1.2√2

Step-by-step explanation:

Taking the cosine value of the angle :

cos 45° = 1.2/x
1/√2 = 1.2/x
x = 1.2√2

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1 year ago

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First right answer for both gets brain

kirza4 [7]

B 8:00 am

8:00+1:25=9:25
9:25+25=9:50
9:50+30=10:20

B $240

60×2=120×2=240

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2 years ago

Ed’s birthday is less than 16 days away. (NEED HELP!!!! WILL GIVE BRAINLY)

schepotkina [342]

Answer:

it is less than and equal to

Step-by-step explanation:

its > with a line under it

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3 years ago

In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who foll

maxonik [38]

Answer: 0.5

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_x\ p^x(q)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total trials and p is the probability of getting success in each trial.

Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

The number of adults surveyed : n= 15

Let X be represents the adults who follow more than one sport.

Then , the probability that fewer than 4 of them will say that football is their favorite sport,

$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

Hence, the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport =0.5

4 0

3 years ago