Which real number is not both a whole number and an integer? A. 18 B. 43 C. 0 D. −229

Mathematics

2 answers:

Paraphin [41]4 years ago

6 0

Negative numbers are not considered whole numbers, your answer is -229

mart [117]4 years ago

5 0

Your answer should be -229

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GarryVolchara [31]

Answer:

First blanks: 36 and 36

Second blanks: -7 or 7

Step-by-step explanation:

Simplify (x+6)^2 and you get x^2+12x+36. 36 is what’s missing in that blank, and it needs to be added to both sides. Next, the second set of blanks is what you get when you take the square root of both sides of the equation. Sqrt((x+6)^2)=x+6. Sqrt(49)= -7 or 7. So you have to put 7 and -7 in the second set of blanks.

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3 years ago

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Kevin is an auto mechanic. He spends 2 hours when he replaces the shocks on a car and 2 hours when he replaces the brakes. He wo

nata0808 [166]

Answer:

Kevin should do 15 shock replacements and 6 brake replacements every week to maximize his weekly income.

Step-by-step explanation:

Both jobs take the same amount of time to complete (2 hours), therefore, in order to maximize his income, Kevin should prioritize the job that gives him the greatest income, which is replacing shocks.

If each job takes 2 hours and he works at most 42 hours per week, Kevin can complete 21 jobs per week. He should aim to do as little break replacements as possible and as many shock replacements as possible to maximize income.

If he completes at least 6 break replacements, the remaining jobs should all be shock replacements:

$S=21-6\\S=15$