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yanalaym [24]
4 years ago
13

Write the number -0.000000000000384 in scientific notation.

Mathematics
1 answer:
dsp734 years ago
8 0

Answer:

Step-by-step explanation:

-0.000000000000384 = -3.84 * 10⁻¹³

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Which of the following is a sine of a in the right triangle below
seraphim [82]

Answer:

\frac{5}{13}

Step-by-step explanation:

sine of A = \frac{opposite}{hypotenuse}

opposite = 5

adjacent = 12

hypotenuse = 13

6 0
3 years ago
The track at Bronwyn’s school is ¼ mile around. If she can do 3 laps in 4 ½ minutes,
Mashutka [201]
You start by figuring out how fast a lap is so you do
4.5 (4 1/2 miles)/3
=1.5 minutes

Which means it takes her 1.5 minutes to do 1/4 mile so you times that by four to get how long it takes her to run a mile
4x1.5
=6

This means it takes her 6 minutes to run a mile
To get this into miles per hour you divide 60 (because there’s 60 minutes in an hour) by 6 (her mile time)
60/6
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Therefore she is running 10 miles per hour
6 0
3 years ago
If an object is dropped from a height of 144 feet, the function h(t) = -16t2 + 144 gives the height of the object after t second
ra1l [238]

Answer:

The ball will hit the ground after 3 seconds.

7 0
3 years ago
Read 2 more answers
What is the solution set for square root of 3y+4=5<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B3y%20%7D%20%20%2B%204%20%3D
Maksim231197 [3]
We can solve it algebraically:
\sqrt{3y} +4-4=5-4 (subtract 4 from both sides to isolate \sqrt{3y}
( \sqrt{3y})^{2}  = (1)^{2} (square both sides to get rid of square root on left side
3y/3=1/3 (divide both sides by 3 to isolate y)
y= \frac{1}{3}
3 0
3 years ago
5
frutty [35]

Answer:

she started with 50 marbles

Step-by-step explanation:

The total is 100 than you just subtract 20 and 30 becasue that is what is added later on. After you subtract 20 and 30 from 100 you will get 50. Therefore Sara had started out with 50 marbles.

Hope that helps :)

6 0
3 years ago
Read 2 more answers
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