3 years ago

What is the simplified form of (2x10^2)^2 in standard notation?

Mathematics

1 answer:

klio [65]3 years ago

7 0

The answer is 200*<span>200.
The answer is 40000.</span>

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What is the x in 2/3×-10=-12 answer to 2/3×-10=-12

satela [25.4K]

X= -3

2/3x-10=12

Step 1: Add 10 to both sides.

2/3x=-2

Step 2: Multiply both sides by 3/2.

x= -3

3 0

2 years ago

M=2 and containing the point (7,6)

Law Incorporation [45]

Answer:

$the \: equation \: of \: the \: line \: is \to \\ \boxed{ \underline{y = 2x - 8 }}$

Step-by-step explanation:

$according \: to \: the \: provided \: info : \\ the \: equation \: of \: the \: line \: is \to \\ y - y_{1} = m(x - x_{1}) \\ y - 6 = 2(x -7) \\ y = 2x - 14 + 6 \\ \underline{y = 2x - 8 }$

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2 years ago

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In calm water, the motorboat of Jana is moving at the speed of 16.5km/h. On a river, because of the current, the boat moves fast

ki77a [65]

Answer: 707 km/h

Step-by-step explanation:

let c = speed of current

16.5 + c = speed of sailboat downstream

16.5 - c = speed of sailboat upstream

distance = travel time * speed

﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋

2(16.5 + c) = 5(16.5 - c)

33 + 2c = 82.5 - 5c

7c = 49.5

c = 7.07 km/h

4 0

1 year ago

Please help! A chemist has 100ml of 25% acid solution. How much of the solution does she need to drain and replace with 70% acid

ratelena [41]

Answer:

77.78

Step-by-step explanation:

7 0

3 years ago

The veloctiy of sound in air is given by the equation v=20 times the square root of 273+t where v is the velocity in meters per

Nikitich [7]

So we just need to plug in our values and solve
$v = 20 \sqrt{273 + t}$
we are given v is 369 so we have
$369 = 20 \sqrt{273 + x}$
now we solve for x.
divide both sides by 20
square both sides
subtract 273 from both sides
$369 = 20 \sqrt{273 + x} \\ 18.45 = \sqrt{273 + x} \\ 340.40 = 273 + x \\ x = 67.4$
so a temp of about 67 degrees C

5 0

3 years ago

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