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3 years ago

Explain when it is better to use a 20% off coupon and when it is better to use a $20 off coupon.

Mathematics

1 answer:

VladimirAG [237]3 years ago

4 0

Answer:

It's better to use 20% when the total is over $100. It's better to use $20 off coupon when the total is less than $100.

Step-by-step explanation:

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HELP ME PLEASE!!!!!!

AlexFokin [52]

Answer:

There ya go

Step-by-step explanation:

4 0

3 years ago

Fine the surface of one yard. please help .-.

ale4655 [162]

Answer:

1) 34 square meters

2) 21 square yards

Step-by-step explanation:

1) 7x4=28

1/2x3x2x2=6

28+6= 34 square meters

2)3x3=9

1/2x3x2x4=12

9+12= 21 square yards

6 0

2 years ago

The step function f(x) is graphed. What is the value of f(0)? -2 -1 0 1

yarga [219]

Answer:

The value of f(0) is Option (A) : - 2

5 0

3 years ago

Maggie is practicing her penalty kicks for her upcoming soccer game. During the practice, she attempts 10 penalty kicks. If each

arlik [135]

Answer:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)$

And we can find the individual probabilities like this:

$P(X=8)=(10C8)(0.65)^0 (1-0.65)^{10-8}=0.176$

$P(X=9)=(10C9)(0.65)^1 (1-0.65)^{10-9}=0.072$

$P(X=10)=(10C10)(0.65)^2 (1-0.65)^{10-10}=0.013$

And adding we got:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)= 0.176+0.072+0.013=0.262$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.65)$