if a man moves a large box by applying 10 Newtown for 20 meters in 40 seconds how much power was used

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

7 0

6.67 would be the answer and whatever sign you are using would be that like 6.67 meters or 6.67 newtons

balandron [24]3 years ago

4 0

Add 20 to 40 then subtract it by 10 to get 50

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HELP. It’s LOG form. Since were out of school I forgot how I did this and it’s due so it would be a life saver.

____ [38]

Answer:

see below

Step-by-step explanation:

exponent to log: $a^b$ = c ---> logₐc = b

ie. question 6

log ₁₀(3x+1) = 2 -----> $10^{2} = 3x+1$

that will get you through questions 1 to 3, 5 to 6, and 8

in question 4, all you have to do is know that 2^2 = 4 and 2^3 = 8, by setting the bases equal, you can manipulate the exponents to get 2x+8 = 3x-3

for questions 7 and 9,

remember that:

logₐc + logₐd = logₐ(cd)

logₐc - logₐd = logₐ( $\frac{c}{d}$ )

remember change of base is $log_{a} b = \frac{log_xb}{log_xa}$ , this will be useful if you need your calculator since calculators only have base 10 and maybe if your calculator is good enough natural base e

4 0

3 years ago

Which of the following is the surface area of the right cylinder below?

Snowcat [4.5K]

Answer: Option A.

Step-by-step explanation:

You need to use this formula for calculate the surface area of the right cylinder:

$SA=2\pi r^2+2\pi rh$

Where "r" is the radius and "h" is the height.

You can identify in the figure that:

$r=8units\\h=3units$

Knowing this, you can substitute these values into the formula $SA=2\pi r^2+2\pi rh$ , therefore you get that the surface area of this right cylinder is:

$SA=2\pi (8units)^2+2\pi (8units)(3units)$