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3 years ago

13

Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability that

the second marble is blue when given that the first marble is red.

1 answer:

Likurg_2 [28]3 years ago

7 0

White 3/8
Green 2/8
Red 2/8
Blue 1/8

Blue 1/7

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Solve by graphing <br><br> u=v and 6u=2v-24

Vadim26 [7]

Answer:

$u=-6 \\ \\ v=-6$

Step-by-step explanation:

In this exercise, we have two equations, namely:

$u=v \ and \ 6u=2v-24$

And we are asked to solve this problem by graphing. In this way, we can write a system of linear equations in two variables, but first of all, let's rewrite:

$u=y \\ \\ v=x$

Then:

$\left\{ \begin{array}{c}y=x\\6y=2x-24\end{array}\right.$

So here we have two lines.

The first one is:

$\boxed{y=x}$

This line passes through the origin and has a slope $m=1$

The second one is:

$6y=2x-24 \\ \\ \therefore y=\frac{2x-24}{6} \\ \\ \therefore \boxed{y=\frac{1}{3}x-4}$

This line has a slope $m=\frac{1}{3}$ and cuts the y-axis at $b=-4$

By using graph tools, we get the graph shown below, then:

$x=-6 \\ \\ y=-6 \\ \\ \\ Since \ u=y \ and \ v=x, then: \\ \\ u=-6 \\ \\ v=-6$

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2 years ago

I need help I'm so confused

borishaifa [10]

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Is it possible to draw a quaderilateral that is not a trapezoid and not a parallelogram

Scrat [10]

Answer:

Yes

Step-by-step explanation:

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8 months ago

M angle 3= 31°. Find m angle 4 (complementary angle)

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Hi, there.

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$\boxed{\begin{minipage}{8cm} Complementary angles \\ Complementary angles are angles whose sum \\ is 90^\circ. \text{Using this info, let's consider this:} \\ \text{If an angle's measure is 31 degrees, what's} \\ \text{its \ complement?}\end{minipage}}$

$\text{Set up an equation, letting a be the unknown angle}$

$\bold{a+31=90}\\\text{Subtract 31 from both sides}\\\bold{a=59}$

Hope the answer - and explanation - made sense,

happy studying!!

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I will give brainliest to whoever answers this question. Also if you can please explain how you solved it I would appreciate it!

madreJ [45]

It would be 25 ft because the person is 5 feet tall but the shadows only 4 ft :)

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