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3 years ago

Waldo has saved $14.55 in Nichols in quarters he has 21 more quarters and nickels how many quarters does Waldo have

Mathematics

1 answer:

Korolek [52]3 years ago

6 0

Answer: Waldo has 52 quarters

Step-by-step explanation:

He has 31 Nichols and 21 more quarters than Nichols so 31+21=52

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In a production process, the probability of manufacturing a defective rear view mirror for a car is 0.075. Assume that the quali

Leviafan [203]

Answer:

The probability that the 3rd defective mirror is the 10th mirror examined = 0.0088

Step-by-step explanation:

Given that:

Probability of manufacturing a defective mirror = 0.075

To find the probability that the 3rd defective mirror is the 10th mirror examined:

Let X be the random variable that follows a negative Binomial expression.

Then;

$X \sim -ve \ Bin (k = 3 , p = 0.075)\\ \\ P(X=x)= \bigg (^{x-1}_{k-1}\bigg)\times P^k\times (1-P)^{x-k}$

$= \bigg (^{10-1}_{3-1}\bigg)\times 0.075^3\times (1-0.075)^{10-3}$

$= \bigg (^9_2\bigg)\times 0.075^3\times (1-0.075)^{7}$

$= \dfrac{9!}{2!(9-2)!}\times 0.075^3\times (0.925)^{7}$

$= \dfrac{9*8*7!}{2!(7)!}\times 0.075^3\times (0.925)^{7}$

= 0.0087999

≅ 0.0088

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2 years ago

Find the distance between the two points in simplest radical form. (3,9)and (0,2)

Aleks04 [339]

Answer:

7.62

Step-by-step explanation:

use distance formula

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2 years ago

Which are the ways to finance your college education?

scZoUnD [109]

Answer:

All of the above

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Grants. Colleges, states, and the federal government give out grants, which don't need to be repaid.

Ask the college for more money.

Work-study jobs.

Apply for private scholarships.

Take out loans.

Claim a $2,500 tax credit.

Live off campus or enroll in community college.

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3 years ago

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