3 years ago

Marco missed 4 questions on the test but answered 75% of the questions correctly.How many questions were on the test?

Mathematics

1 answer:

Nutka1998 [239]3 years ago

4 0

Answer:10

Step-by-step explanation:

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Amy ate 2 1/2 cookies after lunch ,and 1 2/5 cookies after dinner.How many cookies did she eat altogether

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2 1/2 + 1 2/5 = 3 9/10...Please give brainliest....

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3 years ago

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What is the quadratic term for f(x) = 2x(x - 1) - 2x?

erica [24]

I believe it would be 6. the first number and exponent are usually your quadratic terms

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3 years ago

A device contains two circuits. The second circuit is a backup for the first, so the second is used only when the first has fail

Wittaler [7]

Answer:

Step-by-step explanation:

The pdf of X is given by 3e^x(1-e^-2y). Please check the screenshot for the workings.

The pdf of Y is given by 6e^-2y. Please check the screenshot for the workings.

The expected time the device fails is the expected time Y fails, so we are going to find the expected time of Y which equals to 0.83.

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2 years ago

If the 6th term of an arithmetic progres- sion is 11 and the first term is 1, find the common difference.

Darina [25.2K]

Answer:

Step-by-step explanation:

An arithmetic progression with first term a and common difference d has the following first 6 terms:

a, a + d, a + 2d, a + 3d, a + 4d, a + 5d

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1 + 5d = 11

5d = 10

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1 year ago

You buy 21 lbs of cucumbers which are 92% water. A few days later they’re 85% water. How much do they weigh then?

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To solve this, you must find the initial weight of the cucumber. To do this, you must divide the weight by the percentage of water and multiply it by 100.

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2 years ago