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3 years ago

9.310^4 over -310^11 in scientific notation

Mathematics

1 answer:

trasher [3.6K]3 years ago

4 0

=9.3*10^4 / -3 * 10^11

= -3.1 * 10^-7

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The distance between the two points (4,1) and (9,1) is

Rzqust [24]

Answer:

5 units. Since they have the same y coordinate the x coordinate determines the distance from each other. In the case 9-4=5.

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3 years ago

Deprina buys a large cup of coffee for $4.70 on her way to work everyday. If there are 24 workdays in the month, how much does D

Allisa [31]

She will spend 112.8
24 times 4.70 equals 112.8

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3 years ago

What is the answer = 8w- 8 - 6w = 4w - 7 w= ??

ololo11 [35]

Answer:

- 1/2 (or - 0.5)

Step-by-step explanation:

so first, simplify by combining like terms.

so 8w-6w = 2w

so now we have

2w - 8 = 4w - 7

now we have to get the w's to one side of the equation so we can solve for it. so that mean we have to subtract 2w from both sides. 2w - 2w is 0. and then 4w - 2w = 2w. so now we have

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then to slowly start isolating w, add 7 to both sides of th equation. so now its

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and the answer is

- $\frac{1}{2}$ = w

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3 years ago

A rubber ball is dropped from the top of a hole. Exactly 20 seconds later, the sound of the rubber ball hitting bottom is heard.

gayaneshka [121]

9514 1404 393

Answer:

4192.9 ft

Step-by-step explanation:

We assume your falling-distance formula is supposed to be ...

s = 16t²

So, the time required to fall distance s is ...

t = √(s/16) = (1/4)√s

The time required for sound to travel distance s is ...

s = 1100t

t = s/1100

Then the sum of the time for the ball to fall and the time for the sound to travel back is ...

(1/4)√s + s/1100 = 20

275√s = 22000 -s . . . . . multiply by 1100 and subtract s

75625s = s^2 -44000s +484,000,000 . . . square both sides

s^2 -119,625s +484,000,000 = 0 . . . . put in standard form

s ≈ (1/2)(119,625 ±√12,374,140,625) = {4192.943, 115432.057}

Only the smaller of these two solutions makes any sense in this problem.

The hole is about 4192.9 feet deep.

_____

Additional comment

The distance equation for the falling object presumes a vacuum. The sound transmission presumes the presence of air, so the question setup is self-contradictory.

7 0

3 years ago

Use the properties of rational exponents to simplify 6/6 1/4

Alexeev081 [22]

Answer:

one

Step-by-step explanation:

Use the properties of rational exponents

6 0

3 years ago

9.3*10^4 over -3*10^11 in scientific notation

9.310^4 over -310^11 in scientific notation