What does it mean if the probability is 20% that a spinner will stop in a red section? A.
There is one chance in 5 that the spinner will stop in a red section.

B.
It is 20 times more likely that the spinner will stop in a red section than any other section.

C.
If the spinner is spun 100 times it is certain that it will stop in the red section exactly 20 times.

D.
There is one chance in 20 that the spinner will stop in a red section.

Answers

Answer 1

Answer: 20% = 20/100 = 1/5

Hence, there is one chance in five that the spinner will stop in a red section.

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Which expression(s) represent a total gain of $70? Select all that apply100 + (-30)
-20 + (-50)
20 + (50)
50 - (-20)
-30 - (-100)
-70
70

Which ones apply please help!

Answers

The answer :
20 + (50) = 70
50-(-20) = 70
70 = 70

What are the approximate solutions of 2x2 − 7x = 3, rounded to the nearest hundredth?A: No real solutions
B: x ≈ −0.77 and x ≈ 7.77
C: x ≈ −0.39 and x ≈ 3.89
D: x ≈ −3.89 and x ≈ 0.39

Answers

Answer:

Option C is the correct option.

Step-by-step explanation:

The given equation is 2x² - 7x - 3 = 0

In this quadratic equation we will use quadratic formula to get the roots of x.

$x=\frac{-b\pm \sqrt{b^(2)-4ac}}{2a}$

By putting values of a = 2, b = -7 and c = -3 in the quadratic formula

$x=\frac{7\pm \sqrt{(-7)^(2)-4* 2* (-3)}}{2* 2}$

$=(7\pm √(49+24))/(4)$

$=(7\pm √(73))/(4)$

Now we get two values for x

$x=(7+√(73))/(4)$

$=(7+8.54)/(4)=3.89$

and $x=(7-√(73))/(4)$

$=(7-8.54)/(4)$

$=-(1.54)/(4)=-0.39$

Therefore option C. is the answer.

The approximate solutions of equation 2x² - 7x = 3 are,

C: x ≈ −0.39 and x ≈ 3.89

We have to given that,

An expression is,

⇒ 2x² - 7x = 3

Now, We can find the approximate solutions of equation as,

⇒ 2x² - 7x = 3

⇒ 2x² - 7x - 3 = 0

By using quadratic formula, we get;

⇒ x = - (- 7) ± √(- 7)² - 4×2×- 3 / (2×2)

⇒ x = (7 ± √49 + 24) / 4

⇒ x = (7 ± √73) / 4

⇒ x = (7 ± 8.5) / 4

This give two solutions,

⇒ x = (7 - 8.5) / 4

⇒ x = - 1.5 / 4

⇒ x = - 0.39

⇒ x = (7 + 8.5) / 4

⇒ x = 15.5 / 4

⇒ x = 3.89

Therefore, The approximate solutions of equation 2x² - 7x = 3 are,

C: x ≈ −0.39 and x ≈ 3.89

Learn more about the quadratic equation visit:

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Three years ago,Joe brought $750 worth of stock in the software company. Since then the value of his purchase has been increasing at the average rate of 12 1/5 % per year. How much is the stock worth now?

Answers

I think the answer is 1,059.43

Whats 58788188 to the nearest million

Answers

Answer:

588,000,000.

Step-by-step explanation:

Inserting commas every 3 digits from the right, we have:

587,881,188 so that is 587 million and 881,000.

As 8 is the next digit after the 587 we add 1 to 587 to make 588 million.

Just look at the picture

Answers

Answer:

80 and 9 in that order.

Step-by-step explanation:

Assuming that there are 10 digits used as telephone number and the area code is a fixed 3 digit number. How many different telephone numbers could be created?

Answers

9,999,999,999,987 Of course, if 'numbers' with leading digits e.g. 0 000 087 654 321, and all zeros, are not counted as valid 'numbers' then there are 13 less possibilities. i.e. There are only 9,999,999,999,987 possibilities.

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