All categories

3 years ago

A spinner consists of 10 equal-

Mathematics

1 answer:

White raven [17]3 years ago

4 0

Answer:

6 times

Step-by-step explanation:

The chance of spinning it once is 1/5 because 2/10 of the spaces are red and simplify it to 1/5. So it is simple from here, you just multiply how many times your are spinning it (which is 30) by 1/5 cause that's the chance of it landing on red.

You might be interested in

Jeremiah works 5 days a week. If he earns $225 a dat how much does he earn per week

Strike441 [17]

Answer: $1125

Step-by-step explanation:

He works five days a week so it would be 225 times 5 which equals 1125

8 0

4 years ago

Read 2 more answers

What is the geometric mean of 5 and 10?

nlexa [21]

Answer:

5 $\sqrt{2}$

Step-by-step explanation:

The geometric mean of 2 numbers a and b is

$\sqrt{ab}$

Hence

The geometric mean of 5 and 10 is

$\sqrt{5(10)}$

= $\sqrt{50}$

= $\sqrt{25(2)}$ = $\sqrt{25}$ × $\sqrt{2}$ = 5 $\sqrt{2}$

4 0

4 years ago

Read 2 more answers

Jorge wants to draw a conclusion about the possible expected values of rolling a 2 on a standard die for different numbers of ro

spin [16.1K]

<span>may result in an expected value that is even, odd, or a decimal.</span> The expected value is equal to the product of the theoretical probability of rolling a 2 on 1 die roll, or <span>1/6</span>, and the number of die rolls. A total of 300 rolls gives an expected value of 50, which is even. A total of 200 rolls gives an expected value of 33.3, which is a repeating decimal. A total of 30 rolls gives an expected value of 5, which is odd.

6 0

3 years ago

Finding the interpolating polynomial for the function

zhenek [66]

Answer:

f(x) = x^3 -2x^2 -3x +7

Step-by-step explanation:

Cubic polynomial regression using your favorite tool (graphing calculator, spreadsheet, or web site) will tell you the interpolating polynomial is ...

f(x) = x^3 -2x^2 -3x +7

_____

You can use Lagrange polynomial interpolation. It gives the function as the sum of four factored cubics:

$f(x)=3\cdot\dfrac{(x-2)(x-3)(x-4)}{(1-2)(1-3)(1-4)}+1\cdot\dfrac{(x-1)(x-3)(x-4)}{(2-1)(2-3)(2-4)}+\\\\\text{ }\qquad7\cdot\dfrac{(x-1)(x-2)(x-4)}{(3-1)(3-2)(3-4)}+27\cdot\dfrac{(x-1)(x-2)(x-3)}{(4-1)(4-2)(4-3)}$

Or, you can write equations for the coefficients a, b, c, d of ...

ax^3 +bx^2 +cx +d = f(x)

These would be ...

a + b + c + d = 3

8a +4b +2c +d = 1

27a +9b +3c +d = 7

64a +16b +4c +d = 27

Your friendly linear equation solver will tell you ...

(a, b, c, d) = (1, -2, -3, 7) . . . matches the equation shown above

6 0

3 years ago

13. Here is one way Maleka proved that 2(5 + 2) + 2s is equivalent to

Kaylis [27]

Malaria proved that the equation you need to add the parenthesis first

3 0

3 years ago