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3 years ago

15

a spinner has 3 equal sections labeled red, purple ,and yellow how many times would you expect to land on red if you doin it 24

times

1 answer:

torisob [31]3 years ago

6 0

Answer:

8 times

Step-by-step explanation:

we have a 1/3 chance per spin to land on red

so we would expect it to land 33.3% of the time

1/3*24=8

another easy way is to divide by 3

24/3=8

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The sum of a number y and 6.2 is at least -4.7<br> inequality:

xeze [42]

We are required to write an inequality for the expression and also solve it

The number y is at least 10.9

let

the unknown number = y

The sum of a number y and 6.2 = y + 6.2

y + 6.2 ≤ -4.7

y ≤ -4.7 - 6.2

y ≤ 10.9

Therefore,

The expression is represented by the inequality y + 6.2 ≤ -4.7 and y ≤ 10.9

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3 years ago

Simplify 22 – 5(2x + 4).

Georgia [21]

Answer:

-10x+2

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22-5(2x+4)

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3 years ago

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Step-by-step explanation:

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2 years ago

X²+y²-6x+14y-1=0<br> and please show your work so I can learn

Eva8 [605]

Hello there,

I hope you and your family are staying safe and healthy during this winter season.

$x^2 + y^2 -6x+14y-1=0$

We need to use the Quadratic Formula*

$x =\frac{-b+\sqrt{b^2}-4ac }{2a}$ , $\frac{-b-\sqrt{b^2} -4ac }{2a}$

Thus, given the problem:

$a = 1, b=-6, c=y^2+14y-1$

So now we just need to plug them in the Quadratic Formula*

$x=\frac{6+2\sqrt{(-6)^2-4(y^2+14y-1)} }{2}$ , $x=\frac{6-\sqrt{(-6)^2-4(y^2+14y-1)} }{2}$

As you can see, it is a mess right now. Therefore, we need to simplify it

$x=\frac{6+2\sqrt{10-y^2-14y} }{2}$ , $x = \frac{6-2\sqrt{10-y^2-14y} }{2}$

Now that's get us to the final solution:

$x=3+\sqrt{10-y^2-14y}$ , $x=3-\sqrt{10-y^2-14y}$

It is my pleasure to help students like you! If you have additional questions, please let me know.

Take care!

~Garebear

3 0

2 years ago

Need help please 50 minutes

Karolina [17]

I believe it's 3.75 x 10^5 (Sorry if I'm wrong)

6 0

3 years ago