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trapecia [35]
3 years ago
7

Helppppppp plssssssssss, I'll brainlist !!!

Mathematics
1 answer:
NeX [460]3 years ago
4 0

Step-by-step explanation:

Variable x = songs Will originally had downloaded

Variable y = songs Will has after downloading more songs

x + 18 = y

Since Will downloaded 18 more songs, we add 18 to the original amount of songs he had (x). The total will be how many songs he has now (y).

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Really need help finding the slope intercept form of the line that contains points e and f
Sedaia [141]
Point e(4,4)
Point f(2.-4)

Slope = \frac{change in y}{change in x} 
Slope = \frac{4-(-4)}{4-2} = 8/2 = 4
4 0
3 years ago
Read 2 more answers
What is -4 x 2 + 3x = -2​
Brrunno [24]

Answer:

lets goooo

-4×2+3x=-2

you multiply -4 by 2 as shown in the question

so -4×2+3x=-2

-8+3x=-2

3x = -2+8

3x =6

you divide both sides by the x variable

3x =6

3x/3=6/3

x=3

5 0
3 years ago
6 high school seniors choose from among 20 quotes for their yearbook. What is the probability that at least 2 of them choose the
shusha [124]

Using the binomial distribution, it is found that there is a 0.0328 = 3.28% probability that at least 2 of them choose the same quote.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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

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

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem, we have that:

  • There are 6 students, hence n = 6.
  • There are 20 quotes, hence the probability of each being chosen is p = 1/20 = 0.05.

The probability of one quote being chosen at least two times is given by:

P(X \geq 2) = 1 - P(X < 2)

In which:

P(X < 2) = P(X = 0) + P(X = 1).

Then:

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

P(X = 0) = C_{6,0}.(0.05)^{0}.(0.95)^{6} = 0.7351

P(X = 1) = C_{6,1}.(0.05)^{1}.(0.95)^{5} = 0.2321

Then:

P(X < 2) = P(X = 0) + P(X = 1) = 0.7351 + 0.2321 = 0.9672.

P(X \geq 2) = 1 - P(X < 2) = 1 - 0.9672 = 0.0328

0.0328 = 3.28% probability that at least 2 of them choose the same quote.

More can be learned about the binomial distribution at brainly.com/question/24863377

6 0
2 years ago
What is the circumference of the circle in terms of pi radius is 20 in.
MariettaO [177]
Circumference is given by
C=2πr
From the information:
r=20 in
thus
C=2×π×20
C=40π inches
3 0
3 years ago
Read 2 more answers
a decorative pillow is in the shape of a parallelogram. it's base is 28 centimeters, and it's height is 24.5 centimeters. what i
erica [24]
24.5•28=686 centimeters
7 0
3 years ago
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