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Illusion [34]
3 years ago
8

A bag contains 3 red marbles, 4 blue marbles and 5 yellow marbles. In this experiment you reach in the bag, select a marble, rec

ord it and replace it. You then select a second marble. What is the probability that you draw 2 blue marbles?
Mathematics
1 answer:
yanalaym [24]3 years ago
3 0

Answer:

1/9

Step-by-step explanation:

the probability of one blue marble is 1/3 so to find the probability of 2 marbles you multiply it by itself.

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Ok for this one im really stuck and i need help.just want to make sure i understand this one.
tangare [24]

Answer:

70 - 5√10 ft²

Explanation:

Perimeter is the distance around a two-dimensional shape.

                       area of rectangle: length x width

Here given:

length: (3√2 + 4√5) ft

width: (-5√2 + 5√5) ft

Solve for perimeter:

length x width

(3√2 + 4√5) x (-5√2 + 5√5)

<u>apply distributive method</u>

(3√2)(-5√2) + (3√2)(5√5) + (4√5)(-5√2) + (4√5)(5√5)

<u>multiply</u>

-15(2) + 15√10 -20√10 + 20(5)

<u>combine</u>

-30 -5√10 + 100

<u>simplify</u>

70 - 5√10

4 0
2 years ago
what do i write for this " Write a problem that requires adding 1 to the quotient when interpreting the remainder."
Mariana [72]
You should write a ( real world situation ) question that can only have whole numbers as a solution because you would divide and then you can not have a fraction left over so instead you add one. For instance there are 132 students going on a field trip. 20 students can fit on each bus. how many buses are needed? 7 because when you divide 132 by 20 you get 6 remainder 12. You can not just make 12 students walk to the location so you would add an extra bus.
6 0
3 years ago
A line passes through the points (0, 9) and (9, 19). What is its equation in slope-intercept form?
STatiana [176]

Answer:

y = 10/9x + 9

Step-by-step explanation:

To write the equation in its slope-intercept form, y = mx + b, we need to find the slope (m) of the line and its y-intercept (b).

Given the points (0, 9) and (9, 19), we can solve for the slope of the line using the following formula:

m = \frac{y2 - y1}{x2 - x1}

Let (x1, y1) = (0, 9)

and (x2, y2) = (9, 19)

Substitute these values on the formula:

m = \frac{y2 - y1}{x2 - x1} = \frac{19 - 9}{9 - 0} = \frac{10}{9}

Therefore, the slope (<em>m </em>) = 10/9.

Next, the <u>y-intercept</u> is the point on the graph where it crosses the y-axis, and has the coordinates, (0, <em>b </em>). It is also the value of the y when x = 0.

One of the given points is the y-intercept of the line, given by (0, 9). The y-coordinate, 9, is the value of b.

Therefore, the linear equation in slope-intercept form is: y = 10/9x + 9

3 0
2 years ago
A well pump pumps at a rate of 40 gallons per minute. you want to fill a 1,000-gallon tank. the tank already has 80 gallons. you
Vlad [161]
Possibly 230 minutes?? dont quote me on that lol
6 0
3 years ago
What is 38 x 4 = ? <br> i will give away 100 points for next question IF RIGHT
grandymaker [24]

Answer:

152

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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