3 years ago

Absolute value of −4.5

Mathematics

1 answer:

ddd [48]3 years ago

4 0

Answer:

Step-by-step explanation:

|a| = a for a ≥ 0

|a| = -a for a < 0

therefore

|-4.5| = -(-4.5) = 4.5

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Ariel left her home at 9 a.m., driving at 45 mph. At 11 a.m. her brother left the home and started after her at 60 mph. At what

Vlada [557]

Answer:

5:00 pm

Step-by-step explanation:

Let

x -----> the umber of hours

y ----> the total distance in miles

we know that

The distance is equal to the speed multiplied by the time

Find out the distance traveled by Ariel at 11:00 am

11:00 am-09:00 am=2 hours

45(2)=90 miles

<em>Ariel's linear equation is</em>

$y=45x+90$ ----> equation A

<em>Ariel's brother linear equation is</em>

$y=60x$ ----> equation B

Equate equation A and equation B

$60x=45x+90$

Solve for x

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valentinak56 [21]

Answer: A

Step-by-step explanation:

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Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?

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Answer:

Length: meter

Mass: Kilogram

Volume of a solid: Cubic meter

Volume of a liquid: Liters

Temperature: Degree Celsius

Time: second

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