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3 years ago

Help PlSss there’s people not helping I really need to bring my grades up

Mathematics

1 answer:

USPshnik [31]3 years ago

3 0

Answer:

center: P

Radius: 12cm

# of radii: 5

Diameter: 24cm

# of diameters: 2

Circumference: 75.36cm

Step-by-step explanation:

the center is labeled with the point p

radius is the distance from the center to the circumference of a circle

diameter is the distance from one point on a circle through the center to another point on the circle. (and twice the radius)

circumference is 2(pi)r

pi can be rounded to 3.14

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devin is making a candle by pouring melted wax into a mold in the shape of a square pyramid. Each side of the base of the pyrami

likoan [24]

Answer:

(1/3)(9*9*10)=270cm^3 pyramid volume

270/(4*4*4)=4.22cubes

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5 wax cubes

4 0

3 years ago

Meeting at least one person with the flu in thirteen random encounters on campus when the infection rate is 2% (2 in 100 people

s344n2d4d5 [400]

Answer:

23.1% probability of meeting at least one person with the flu

Step-by-step explanation:

For each encounter, there are only two possible outcomes. Either the person has the flu, or the person does not. The probability of a person having the flu is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Infection rate of 2%

This means that $p = 0.02$

Thirteen random encounters

This means that $n = 13$

Probability of meeting at least one person with the flu

Either you meet none, or you meet at least one. The sum of the probabilities of these outcomes is 1. So

$P(X = 0) + P(X \geq 1) = 1$

We want $P(X \geq 1)$ . Then

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{13,0}.(0.02)^{0}.(0.98)^{13} = 0.7690$

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.769 = 0.231$

23.1% probability of meeting at least one person with the flu

6 0

3 years ago

PLEASE ANSWER!!!! AND DONT STEAL THE POINTS IF YOU DONT KNOW THE ANSWER THEN DON'T ANSWER THE QUESTION >:(

Tasya [4]

Heyy
3(y+1)=3y+3
2(a+2)=2a+4
1/2(2+2x)=1+x
6(x+y)=6x+6y

5 0

3 years ago

Read 2 more answers

WILL GIVE BRAINIEST THANKS AND 5 STAR RATING TO ANYONE WHO ANSWERS PROPERLY PLEASE ONLY UNIQUE LEGITIMATE ANSWERS ONLY NOTHING F

Gala2k [10]

I think you have to make a frequency table. Is it correct? so I can think the answer and tell u

7 0

3 years ago

Pls Solve<br><br> find a. ga+q=r

prohojiy [21]

The value of a for the given equation is a=(r-q)/g.

The given equation is ga+q=r.

We need to find the value of a from the given equation.

<h3>What is an equation?</h3>

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now, ga+q=r can be solved for a as follows:

⇒ga=r-q

⇒a=(r-q)/g

Therefore, the value of a for the given equation is a=(r-q)/g.

To learn more about an equation visit:

brainly.com/question/14686792.

#SPJ1

5 0

1 year ago