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2 years ago

12

a marble bag contains three red marbles and four gray marbles six white marbles and five black marbles what is the probability o

f randomly drawing a red marble and then a gray marble if the first marbel is replaced

1 answer:

Andrews [41]2 years ago

3 0

Answer:

1/27

Step-by-step explanation:

do good!

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2 years ago

Does anyone know how to do this?

sineoko [7]

Answer:

$\boxed{\tt x=\sqrt{85} }$

Step-by-step explanation:

When making a right triangle with 2 points, the distance is the hypotenuse which can be represent as "x"

To find the distance we can use the Pythagorean theorem.

$\boxed{{\tt a^2+b^2=c^2}}$

→ $\tt a=9$

→ $\tt b=2$

→ $\tt c=x$

<u>Let's Plug in the side lengths:</u>

$\tt 9^2+2^2=x^2$

<u>Evaluate 9²= </u><u>81</u><u> and 2²= </u><u>4</u><u>:</u>

$\tt 81+4=x^2$

<u>Now, add 81+4= 85</u>

$\tt 85=x^2$

<u>Take the square root of both sides:</u>

$\tt x=\sqrt{85}$

_____________________________

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2 years ago

10bf + 25bg – 21p – 14pq<br> Quadratic factorisation

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The problem 10bf + 25bg – 21p – 14pq cannot be factored because it cannot be simplifed further. This is because there are no common factors between in any of the terms.

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3 years ago

The price of a smartphone increased from $25 to $40. Find the percent<br> increase

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Answer:60% increase

Source:trust me bro

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What is the point slope of the line when slope is -4 and the given coordinates are (4,-9)

Lina20 [59]

The point-slope form of the equation of a straight line is:

$y-y_1=m(x-x_1)$

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Substitute:

$y-(-9)=-4(x-4)\\\\\boxed{y+9=-4(x-4)}$

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3 years ago