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alexandr1967 [171]
3 years ago
6

I need help please it’s due today I forgot how to do this :(

Mathematics
1 answer:
choli [55]3 years ago
8 0

Answer:

Samantha payed 12.71$ for her purchase.

Step-by-step explanation:

I may have misunderstood the question, but it looks like you can use a calculator for this!

6.19 + 2.85 + 2.29 + 1.38 =

12.71

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A recent survey found that 70% of all adults over 50 wear
lubasha [3.4K]

Answer:

There is an 84.97% probability that at least six wear glasses.

Step-by-step explanation:

For each adult over 50, there are only two possible outcomes. Either they wear glasses, or they do not. This means that we use the binomial probability distribution to solve this problem.

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 combinatios 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.

In this problem we have that:

n = 10, p = 0.7

What is the probability that at least six wear glasses?

P(X \geq 6) = P(X = 6) + `P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.8497

There is an 84.97% probability that at least six wear glasses.

5 0
3 years ago
A cylinder is sliced horizontally, parallel to its base, and vertically. Which of the following could represent cross sections o
Misha Larkins [42]

C- CIRCLE AND RECTANGLE!

(~ ̄³ ̄)~( ˘ ³˘)♥

5 0
3 years ago
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You start out with $20 and then spend money in a store where every item is $3. Y = -3x + 20.
hodyreva [135]

D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Use the number line to solve (-1)-(-2)=
Alex787 [66]

Answer:

-1 is the answer , your welcome haha

4 0
3 years ago
Point N is located at (-2, 4) on the coordinate plane. Point N is reflected over the y
Alona [7]

Answer:

(2,4)

Step-by-step explanation:

It's reflected over the y axis so it would still have the same y value but the x value will be positive instead of negative

The point is (2,4)

8 0
3 years ago
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