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2 years ago

Inequality word problems

Mathematics

1 answer:

Hoochie [10]2 years ago

4 0

Look at the word usage. “At least” means at a minimum or greater. He has $15 currently and needs at least $60. Therefore:

15+x ≥ 60

x ≥60-15

x ≥45

Therefore, he will need at least $45 added to his $15 to make the inequality true.

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How many hours and minutes elapsed from 8:00 a.m to 2:30 p.m?

seraphim [82]

Answer:

6 hours and 30 mins

Step-by-step explanation:

This is right answer because from 8:00 to 9:00 is 1 hour and each hour is 60 mins and each minute is 60 secs. I hope this helps and please give me the crown

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3 years ago

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Delicious77 [7]

Hey there!!

How do we find inverses?

In versing is the just the flip-flop of the x and y.

Given equation :

...f(x) = √(2x-6)

... y = √(2x-6)

... x = √(2y-6)

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f(x) = ( x² + 6 ) / 2

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... y = ( x - 2 )³ + 8

... x = ( y - 2 )³ + 8

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... cube root on both sides

... ∛( x - 8 ) = y - 2

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3 years ago

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A standardized variable always has a mean of _______ and a standard deviation of _______. b. The z-score corresponding to an

Feliz [49]

Answer:

Step-by-step explanation:

We know that normal distribution as special characteristics such as symmetry, unimodal, no skewness, mean =median=mode, etc

A standardized variable for normal variable X is

$Z = \frac{x-\mu}{\sigma}$ will be normal with mean =0 and sigma =1

The probability will be divided equally on either side of the mean =0 i.e. y axis

Hence the answers would be

A standardized variable always has a mean of __0_____ and a standard deviation of ___1____. b. The z-score corresponding to an observed value of a variable tells you ____the std normal score.___. c. A positive z-score indicates that the observation is __to the right ____ the mean, whereas a negative z-score indicates that the observation is __to the left_____ the mean

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3 years ago

Inequality word problems ​

Inequality word problems