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saul85 [17]
3 years ago
14

Do these basic math problems please

Mathematics
2 answers:
Brut [27]3 years ago
8 0

Answer:

.

Step-by-step explanation:

a.) 72 ÷ 8 × 9 = 81 (we divide 72 by 8 first then multiply the result with 9)

b.) -72 ÷ 8 × 9 = -81 (it's same with a only differ by negative sign)

c.) 72 ÷ (-8) × 9 = -81 (dividing 72 by -8 will give us -9 and multiplying -9 by -9 will give the result of -81)

d.) 72 ÷ 8 × (-9) = -81 (divide 72 by 8 and it will be 9, mutliply it by -9 and again it will give -81)

e.) -72 ÷ 8 × (-9) = 81 (divide -72 by 8 and it will be -9 multiplying it by -9 will give a positive 81 since two negative signed numbers multiplied or divided gives positive result)

Pepsi [2]3 years ago
8 0

Answer:

A)81

B)-81

C)-81

D)-81

E)81

Step-by-step explanation:

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LuckyWell [14K]

Answer:

After 2 hours: -6°C.

After 5 hours: -15°C.

After \frac{1}{2} hours: -1.5°C

1 hour ago: 3°C.

3 hours ago: 9°C.

4.5 hours ago: 13.5°C.

To find these values, you simply need to multiply the hours elapsed by 3°C. Subtract from 0°C for future temperatures, and ADD to 0°C for the past.

Let's say you are solving for the temperature in 5 hours. All you need to do is:

3°C× 5= 15°C. 0°C-15°C= -15°C

For the temperature 3 hours AGO, what you will need to do instead is:

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8 0
3 years ago
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max2010maxim [7]

Answer:

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Step-by-step explanation:

since each variable has a given value, just plug the numbers into the equation.

3(6)5=90

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4 0
3 years ago
Δ HFM- Δ PST What is the perimeter of triangle PST? Enter your answer in the box.
fgiga [73]

Step-by-step explanation:

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3 years ago
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hram777 [196]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Please help I don’t know this question .
serg [7]

x = 6

AB = 11

BC = 22

Hope that helps :)

6 0
3 years ago
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