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3 years ago

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Drew hiked two trails Rocky Hill is 7 /8 miles long battle in Brook Trail is 4/5 mile long how much further did Drew hike on Roc

ky Hill Trail then I'll babbling Brook Trail write an equation

1 answer:

Nonamiya [84]3 years ago

3 0

3/3 or 1 whole hope this helps

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You paint 13 1 3 of a wall in 14 1 4 hour. At that rate, how long will it take you to paint one wall?

Lady bird [3.3K]

Find the rate at which you work, that is, the # of walls painted per hour:

13 1/3 walls 40/3

------------------ = ---------- wall per hour

14 1/4 hr 57/4

Keep 40/3 as it is; invert the divisor (57/4) and then multiply the result by 40/3:

40 4 160 wall

------ * ------ = --------------- = approx. 0.94 wall in one hour, or 160/171 wall / hr

3 57 171 hr

4 0

3 years ago

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16(-4/3)<br> Please help me!!!

baherus [9]

I got -64/3 for this problem.

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3 years ago

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nlexa [21]

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3 years ago

What is the P(T,H,T,H) on 4 flips of a coin?<br><br> i need help

Katen [24]

Answer:

1/16

Step-by-step explanation:

Each coin flip is an independent event so the probabilities are independent

P(T,H,T,H) = P(T) P(H) P(T) P(H)

= 1/2 * 1/2 * 1/2 * 1/2

= 1/16

5 0

3 years ago

What are all of the real roots of the following polynomial? f(x) = x4 - 13x2 + 36

GREYUIT [131]

ANSWER

A. -3, -2, 2, and 3

EXPLANATION

The given polynomial function is,

$f(x) = {x}^{4} - 13 {x}^{2} + 36$

To find the real roots, we equate the function to zero to obtain;

${x}^{4} - 13 {x}^{2} + 36 = 0$

We can solve this equation as a quadratic equation in
${x}^{2}.$

Thus we rewrite the equation as,

$({x}^{2})^{2} - 13 {x}^{2} + 36 = 0$

We split the middle term to get,

$({x}^{2})^{2} - 9 {x}^{2} - 4 {x}^{2} + 36 = 0.$

We factor to get,

${x}^{2} ( {x}^{2} - 9) - 4( {x}^{2} - 9) = 0$

We factor to get,

$( {x}^{2} - 9)( {x}^{2} - 4) = 0$

Either

${x}^{2} - 9 = 0$
or

${x}^{2} - 4 = 0$

$x = \pm \sqrt{9} \: or \: x = \pm \sqrt{4}$
$x = \pm3 \: or \: x = \pm2$

$x=-3,-2,2,3$

The correct answer is A

5 0

3 years ago

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