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4 years ago

What operation is used to make a prediction using a probability

Mathematics

2 answers:

Dmitry_Shevchenko [17]4 years ago

8 0

Answer:

Division

Step-by-step explanation:

Certain Outcomes/Total Outcomes = Probability

The operation used is division

borishaifa [10]4 years ago

6 0

The answer is division.

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Express 30 minutes as a percentage of 3 hours 20 minutes

liberstina [14]

Answer:

15%

Step-by-step explanation:

The quantities must be in the same units

Using the conversion

I hour = 60 minutes, then

3 hours 20 minutes = ( 3 × 60) + 20 = 180 + 20 = 200 minutes.

Thus

$\frac{30}{200}$ × 100% = $\frac{30}{2}$ = 15%

7 0

4 years ago

The point (5,4) lies on a circle. What is the length of the radius of

Flura [38]

Answer:

$\large\boxed{r=2\sqrt2}$

Step-by-step explanation:

The radius (r) length is equal to the distance between the center of the circle and the point on the circle.

The formula of a distance:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points (5, 4) and (3, 2):

$r=\sqrt{(3-5)^2+(2-4)^2}\\\\r=\sqrt{(-2)^2+(-2)^2}\\\\r=\sqrt{4+4}\\\\r=\sqrt{(4)(2)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\r=\sqrt4\cdot\sqrt2\\\\\boxed{r=2\sqrt2}$

8 0

3 years ago

Solve 5x + 7 > 17. {x | x < 2} {x | x > 2} {x | x < -2} {x | x > -2}

Artyom0805 [142]

<span>5x + 7 > 17 can be simplified by subtracting 7 from both sides:

5x > 10 Now solve for x. Div. both sides by 5.

Then x>2, or {x | x > 2} in set notation.</span>

7 0

3 years ago

Read 2 more answers

Pedro has a square practice net in his backyard. The diagonal of the net is 6 feet. Find the length of one side of the net.

olasank [31]

Answer:

3sqrt2

Step-by-step explanation:

If a side length is a, then a^2 + a^2 = 36

2a^2 = 36

a^2 = 18

a = 3sqrt2

Or, you can remember that in a square, if you cut it in half diagonally, you get a 45-45-90 triangle, so the sidenglth is diagonal/sqrt2

5 0

3 years ago

What is 2 2/3 equivalent to?

son4ous [18]

It’s equivalent to 8/3, also known as 2.66667 (Rounded to fifth decimal place)

3 0

4 years ago