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3 years ago

The probability of picking two black marbles from a box at random without replacement is 10/91 .

2 answers:

8 0

The probability of the 2 events are multiplied to get the result 10/91

so we have the relation 5/14 * x = 10/91

where x is the probability of drawing the second black

so x = 10/91 * 14/5 = 4/13 answer

Scorpion4ik [409]3 years ago

7 0

Answer:

4/13

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<em>This is the correct answer! I just took the test! Good luck!!</em>

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write an equation for the line that is perpendicular to the given line and passes through the given point y-3=8/3(x+2);(-2,3)

Stolb23 [73]

Answer:

$y-3=-\frac{3}{8} (x+2)$

Step-by-step explanation:

We can write the equation of a line in 3 different forms including slope intercept, point-slope, and standard depending on the information we have. We have a point (8,1) and a slope from the equation. We will chose point-slope since we have a point and slope.

Point slope: $y-y_1=m(x-x_1)$

$m\neq \frac{8}{3}$ in our new equation because it is perpendicular to it. This means we will need to change it into its negative reciprocal which is $m=-\frac{3}{8}$ .

We will substitute $m=-\frac{3}{8}$ and $x_1=-2\\y_1=3$ .

$y-3=-\frac{3}{8} (x-(-2))$

$y-3=-\frac{3}{8} (x+2)$

This is the equation of the line perpendicular to the equation given that crosses through (-2,3).

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4 years ago

Tonya prepared 4 different letters to be sent to 4 different addresses. for each letter, she prepared an envelop with its correc

nikitadnepr [17]

There are 4! = 24 poosible permutations of the four letters. Let the letters be A, B, C and D. Two permutations will have only letter A in the correct envelope, two more permutations will have only letter B in the correct envelope, two more will have only letter C in the correct envelope and two more will have only letter D in the correct envelope. Therefore 8 out of the 24 possible permutations will have only one letter with the correct address. The required probability is 8/24 = 1/3.

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3 years ago

Someone help me with this question please it would help me a lot !!!

motikmotik

Answer:

x intercept ( -40,0)

y intercept ( 0,15)

Step-by-step explanation:

The x intercept is where it crosses the x axis. The y value is zero

(-40,0)

The y intercept is where it crosses the y axis. The x value is zero

(0,15)

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4 years ago

7. A car rental company rents a car for $52 per day and $0.15 per mile. What's the rental fee for a car that's rented for 3 days

Vlad [161]

The rental fee would be $186 rental fee

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3 years ago

What is 927 divided by 9 step by step

myrzilka [38]

Answer:

103

Step-by-step explanation:

$\frac{927}{9} = 103$

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3 years ago