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3 years ago

10

Jeremy sees an analog clock that reads 3:32. which of the following are true. a. in 18 minutes it will be 3:14. b. 27 minutes ha

ve elapsed since 3:59. c. the hour hand is between the 2 and 3. d. the minute hand is between the 6 and the 7

1 answer:

Nastasia [14]3 years ago

7 0

The answer is D. The minute hand is in between 6 and 7.

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If a projectile is launched vertically upward from 800 ft above the ground with an initial velocity of 80 ft per second, its hei

tiny-mole [99]

Hello!

10 seconds to return to the ground.

7 seconds to reach 576 feet above the ground.

Find the amount of time taken to reach the ground by setting the equation equal to 0:

0 = -16t² + 80t + 800

Factor out -16 from the equation:

0 = -16(t² - 5t - 50)

Factor the terms inside of the parenthesis:

0 = -16(t - 10)(t + 5)

Find the zeros:

t - 10 = 0

t = 10

t + 5 = 0

t = -5

Time can only be positive in this instance, so the correct answer is 10 sec.

Find the time by substituting in 576 for the height:

576 = -16t² + 80t + 800

Subtract 800 from both sides:

-224 = -16t² + 80t

Rearrange:

0 = -16t² + 80t + 224

Simplify:

0 = -16(t² - 5t - 14)

0 = -16(t - 7)(t + 2)

t = 7 seconds.

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3 years ago

I need help please (geometry)

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Answer:

Step-by-step explanation:

It is easy just: step 1: connect all dots then add your numbers up

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2 years ago

4X to the 3rd power + 6x to the second power minus x minus 12 minus x to the 4th power + 3x to the third power + 2 x to the seco

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3 years ago

Will ran the diagonal distance across a square field measuring 40 yards on each side. James Ran the diagonal distance across A r

ozzi

Answer:

<u>Will</u> ran the longer distance.

He run <u>56.40 yards</u> longer distance.

Step-by-step explanation:

<u><em>The question is incorrect so the correct question is below.</em></u>

Will ran the diagonal distance across a square field measuring 40 yards on each side. James ran the distance across a rectangular field with a length of 25 yards and a width of 35 yards. Who ran a longer distance,and how much longer did he run?

Now, to find the person who ran longer distance and the distance he run.

Will ran the diagonal distance across a square field.

The length of square field = 40 yards.

So, we put formula to get the diagonal of square:

$Diagonal=length\sqrt{2}$

$Diagonal=40\times \sqrt{2}$

$Diagonal=40\times 1.41$

$Diagonal=56.40\ yards.$

Thus, Will ran 56.40 yards diagonal distance of the square field.

Now, James ran the distance across a rectangular field with a length of 25 yards and a width of 35 yards.

So, to get the diagonal of rectangular field we use pythagorean theorem:

$Diagonal^2=length^2+width^2$

$Diagonal^2=25^2+35^2$

$Diagonal^2=625+1225$

$Diagonal^2=1850$

<em>Using square root on both sides we get:</em>

$Diagonal=43.01\ yards.$

Hence, James ran the diagonal distance 43.01 yards across the rectangular field.

<em>Now, we see the diagonal distance of both Will and James.</em>

<em>As, Will ran 56.40 yards and James ran 43.01 yards.</em>

<em>So, Will ran longer distance than James. And he run 56.40 yards</em>.

Therefore, Will ran the longer distance.

He run 56.40 yards longer distance.

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3 years ago

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Answer:

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Step-by-step explanation:

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