3 years ago

Is 8/24 greater or 8/20

Mathematics

1 answer:

Afina-wow [57]3 years ago

6 0

Answer:

8/20

Step-by-step explanation:

the 8s may be the same, but because the denominator 20 is smaller than 24, 8 takes up more of it. another way to check is that 8/24 as a decimal is .33 repeating, but 8/20 as a decimal is 0.4.

0.4 is more than .33 repeating. reaffirming that 8/20 is bigger

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A ball is thrown downward from the top of a 240-foot building with an initial velocity of 20 feet per second. The height of the

telo118 [61]

Answer:

3.29 s

Step-by-step explanation:

We are given that

Height of building=240

Initial velocity=20ft/s

The height of the ball after t seconds is given by

$h(t)=-16t^2-20t+240$

When the ball strike the ground then

h(t)=0

$-16t^2-20t+240=0$

$4t^2+5t-60=0$

Quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Using the quadratic formula

$t=\frac{-5\pm\sqrt{25+960}}{8}$

$t=\frac{-5\pm\sqrt{985}}{8}$

$t=\frac{-5+31.28}{8}=3.29 s$

$t=\frac{-5-31.38}{8}=-4.5$

Time cannot be negative .Therefore,

t=3.29 s

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4 years ago

If the diameter of a circle changes from 8 cm to 4 cm , how will the circumference change ?

jarptica [38.1K]

The circumference 1 = π*D=8π

if D=4, the circumference 2 =4π=1/2* the circumference 1

⇒ a is the answer

6 0

3 years ago

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Find the exact length of the third side

Kitty [74]

It would be 7.62

you would have to use pythagorean theorem and do 7 squared plus 3 squared. you would get 58. then you have to square root 58 which would give you 7.62

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3 years ago

If 2/6 means 2 / n what is the value of n

klemol [59]

Answer:

The value of n is 6.

hope it works

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3 years ago

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Subtract using a number line. 12−(−5) Select the point on the number line to plot the answer.

andreev551 [17]