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3 years ago

Given:y=x/2 if x=20 y=?

Mathematics

1 answer:

AlexFokin [52]3 years ago

7 0

the answer is 10

;);););)

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Olivia has 1 1/5 yards of fabric. she uses 5/8 of the fabric to make a shirt. How much fabric did she use?

Ierofanga [76]

Make 1 1/5 into improper fraction which is 6/5 and then find the common denominator 6/5 and 5/8.
Common denominator is 40. Multiply 8 by 6 and 8 by 5 so it would become 48/40. Do the same with 5/8 except multiply by 5 which would be 25/40. Subtract 48/40 and 25/40 which is.....

23/40

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3 years ago

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Corinna is taking a test in which short-answer questions are worth 10 points each and essay questions are worth 15 points each.

romanna [79]

Can smart people answer.??????? Corinna is taking a test in which short-answer questions are worth 10 points each and essay questions are worth 15 points each. She estimates that it takes 3 min to answer each short- answer question and 6 min to answer each essay question. The total time allowed is 60 min, and no more than 16 questions can be answered. Assuming that all her answers are correct, how many questions of each type should Corinna answer in order to get the best score?

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3 years ago

The Graduate Record Examination (GRE) is a test required for admission to many US graduate schools. Student’s scores on the quan

Dmitry_Shevchenko [17]

Answer with Step-by-step explanation:

Since we have given that

Mean = 150

Standard deviation = 8.8

An admissions officer at a large graduate school believes the mean is less than 150.

a)Determine the null and alternative hypotheses.

So, hypothesis :

$H_0:\mu =150\\\\H_a:\mu\neq 150$

b)Explain what it would mean to make a Type I Error.

As we know that Type 1 error are those errors in which null hypothesis is supposed to be rejected but not get rejected.

So, here, mean is not less than 150 but in actual it is less than 150.

c)Explain what it would mean to make a Type II Error.

As we know that Type II error are those errors in which null hypothesis is not supposed to be rejected but it gets rejected.

So, mean is less than 150 but actually it is not less than 150.

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3 years ago

The bacteria in a certain culture double every 6.3 hours. The culture has 5,500 bacteria at the start. How many bacteria will cu

Naddika [18.5K]

5500(2)^5/6.3

5500*1.7

The answer is 9534

this answer has been rounded.
If you need this to be unrounded, go to https://www.symbolab.com/solver/algebra-calculator

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3 years ago

What is this expression in simplest form 1/2x^2-4x-2/x

Papessa [141]

Answer:

Step-by-step explanation:

Combine 12and x2.x22−4x−2x

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3 years ago