2 years ago

Okay here's the first few questions

Mathematics

1 answer:

Marina86 [1]2 years ago

6 0

Answer:

1,yes

2,no

3,x=√117

4,x=12 y=6

5,x=12, y=15.75

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A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep

daser333 [38]

Answer:

$Probability = \frac{7}{253}$

Step-by-step explanation:

Given

$Orange = 7$

$Green = 6$

$White = 1$

$Black = 7$

$Yellow = 2$

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

$P(Yellow) = \frac{n(Yellow)}{Total}$

$P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}$

$P(Yellow) = \frac{2}{23}$

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

$P(Orange) = \frac{n(Orange)}{Total - 1}$

$P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}$

$P(Orange) = \frac{7}{22}$

The required probability is calculated as thus:

$Probability = P(Yellow) * P(Orange)$

$Probability = \frac{2}{23} * \frac{7}{22}$

$Probability = \frac{14}{506}$

$Probability = \frac{7}{253}$

4 0

3 years ago

Midpoints <br> B is the midpoint of AC , find x.

PolarNik [594]

B is the midpoint which means both sides are equal to each other:

5x = 3x + 4

Subtract 3x from both sides

2x = 4

Divide both sides by 2

X = 2

4 0

2 years ago

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You have 10 marbles (5 blue, 3 white, 2 yellow) what is the probability of choosing yellow?

melisa1 [442]

1/5 (one fifth) or 20 percent

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3 years ago

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What are the steps for solving, 7,542÷3

valina [46]

Answer:

2514

Step-by-step explanation:

Do the long division and you'll find the answer.

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2 years ago

Find the slope of the line that passes through the points (0,7) and (-4,7)

aev [14]

Slope: (y2-y1)/(x2-x1)
(0,7) and (-4,7)
(7-7)/(-4-0) = 0/ -4
The slope is 0

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2 years ago

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Okay here's the first few questions​

Okay here's the first few questions