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Irina18 [472]
3 years ago
7

Kevin is trying to find a white sock in his drawer. He has 16 white socks, 4 brown socks, and 6 black socks. What is the probabi

lity
that he pull out either a black or brown sock, puts it back, and then pulls out a white sock?
Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0
The probability of the black sock is 6/26 for the white is 16/26 and for the brown is 4/26
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Solve 27 and 29, will give BRAINLIST!!
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Answer:

see below

Step-by-step explanation:

27.

We can use ratios to solve

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Using cross products

152x = 4*532

152x =2128

Divide each side by 152

152x/152 = 2128/152

x =14

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1 inch        2/3 inches

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Using cross products

1x = 2/3 * 6.5

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Step-by-step explanation:

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If a certain cannon is fired from a height of 8.8 meters above the​ ground, at a certain​ angle, the height of the cannonball ab
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Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

h(t)=-4.9t^2+30.5t+8.8

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Substitute h(t) = 0 in above function.

-4.9t^2+30.5t+8.8=0

Multiply both sides by 10.

-49t^2+305t+88=0

For a quadratic equation of the form ax^2+bx+c=0 the solutions are: x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Substitute a = -49, b = 305 and c=88

t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}

Ignore the negative value of t as time can't be a negative number.

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t=\frac{305+\sqrt{110273}}{98}\approx6.50

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