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galben [10]
3 years ago
6

Simplify. (-8√2)(1/2√32) A .-64 B. -32 C. -16

Mathematics
1 answer:
xeze [42]3 years ago
8 0
This = - 8 * 1/2 * sqrt2*sqrt32
=  -4 * sqrt64
= -4 * 8
= -32 (answer)   Its B
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3. Solve y = 2(x - 3) when:<br>a. X = 4<br>b. y = 8​
eimsori [14]

Answer:

Hello!

Ok so first you plug in y as 8 and x as 4. You first do the math in the parentheses so 4-3 is 1, then 1 times 2 is 2. It should be like this 8=2. Then you do 8 divided by 2 which is 4.

Step-by-step explanation:

8 0
2 years ago
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NEED HELP ASAP<br> find the volume of the solid
blondinia [14]

Answer: you can always use

but  30 cubic units

Step-by-step explanation:

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3 years ago
Never get any closer then _____ feet when a train is passing through a railroad crossing. 25 30 15 20
nekit [7.7K]

It totally depends on speed at which train is moving.

If the speed of train is below 100 miles per hour the minimum distance maintained should be 4 feet.

If the speed of train is above 100 miles per hour and less than 125 miles per hour the minimum distance maintained should be  6.6 feet.(Approx)

As , when a train is moving with velocity more than this i.e above 125 miles per hour the minimum distance should be 15 feet.(Approximately)

Option (C) 15



3 0
3 years ago
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Find the area of the circle if the square has an area of 900 in2. Give your answer in terms of pi
shusha [124]
There is no attached picture, but I guess it is like the one I attached.
If so, the first thing is finding the side measure:
A_{square}=l^2 \\ l= \sqrt{A} = \sqrt{900} \;\;\Rightarrow l=30\;in
Now, radius is half this measure: 15 in.
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8 0
3 years ago
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katrin [286]

Answer: x=4\\y=3

Step-by-step explanation:

y=4x-13\\2x+3y=17

Since our ''y'' is already isolated, you can simply plug ''y'' information into the second equation.

2x+3y=17\\2x+3(4x-13)=17\\2x+12x-39=17\\14x=17+39\\14x=56\\x=\frac{56}{14} \\x=4

Now we can use the first equation and replace ''x'' to find ''y''

y=4x-13\\y=4(4)-13\\y=16-13\\y=3

To prove that your values are correct, take any of the equations and replace their values.

y=4x-13\\3=4(4)-13\\3=16-13\\3=3

4 0
3 years ago
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