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3 years ago

Please help!!

Mathematics

1 answer:

Elan Coil [88]3 years ago

5 0

Your answer would be the time in takes for carbon-14 to elapse 3 half-lives.
5730 • 3 = 17190

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How can i solve the equation 4(2x+7)

myrzilka [38]

Distribute so times what's outside by what's inside so 4×2x=8x and 4×7=28 then get x by itself by dividing on both sides 28÷8=3.5 your answer is x=3.5

3 0

3 years ago

Read 2 more answers

Joe earns $4,100 per month and pays $870 each month in rent. Approximately what percent of his money is spent on rent?

Scorpion4ik [409]

if we take 4100 to be the 100%, what is 870 off of it in percentage?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 4100&100\\ 870&x \end{array}\implies \cfrac{4100}{870}=\cfrac{100}{x} \\\\\\ 4100x=87000\implies x=\cfrac{87000}{4100}\implies x=\cfrac{870}{41}\implies x\approx 21.22$

8 0

3 years ago

3. Water flows through a pipe at a rate of 10 gallons per minute. How many gallons

diamong [38]

1 minute = 10gal

60minutes = 10×60 gal.

1 hour = 600 gallons

Happy to help!Please tell me if you understand!

3 0

3 years ago

Read 2 more answers

A ball is launched straight up in the air from a height of 6 feet. Its velocity (feet/second) t seconds after launch is given by

german

Step-by-step explanation:

A ball is launched straight up in the air from a height of 6 feet. The velocity as a function of time t is given by :

f(t) = -32 t+285

Height of the ball is :

$h(t)=\int\limits{f(t){\cdot} dt}\\\\h(t)=\int\limits{(-32t+285){\cdot} dt}\\\\h(t)=-16t^2+285t+C$

C is constant. Here the ball is launched from a height of 6 feet. So,

$h(t)=-16t^2+285t+6$

At t = 2 s, $h(t)=-16(2)^2+285(2)+6=512\ m$

At t = 9 s, $h(t)=-16(9)^2+285(9)+6=1275\ m$

Between 2 s and 9 s, the ball's height changed is : 1275 - 512 = 763 m.

6 0

3 years ago

Help me out ?<<<<<<<<<<<

Advocard [28]

It would be J because the radius is 6 inches and the radius is only starting from the edge to the middle not fully across it can be confusing. Hope that helped!

7 0

4 years ago