Four

Mathematics

1 answer:

damaskus [11]3 years ago

4 0

The probability is 50% for heads, so you should expect 2 heads results

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Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations

Y_Kistochka [10]

Answer:

On 5th day and 13th day Attendance was equal for both plays and it was

231 for each .

Step-by-step explanation:

In order to find same attendance ,we need plug both equation equal

-x^2+26x+126 = 8x+191

-x^2+26x-8x+126-191 = 0

-x^2 +18x-65 =0

multiplying both sides by -1 ,we get

x^2 -18x+ 65 =0

(x-5) (x-13) =0

x =5 and x =13

On 5th day and 13th day attendance was same.

And attendance can be obtained by plugging x =5 in either of equation

y = 8(5)+191

= 40 +191

= 231

8 0

3 years ago

For the given table of values for a polynomial function, where must the zeros of the function lie?

Jet001 [13]

Answer:

A. Between 3.0 and 3.5 and between 4.0 and 4.5

Step-by-step explanation:

The zeroes of a function occur whenever a value of x returns zero. To predict where the zeroes lie, determine the interval(s) where the function crosses the x-axis. This occurs when either $f(x)$ goes from a negative value to a positive value or vice versa.

From $x=3.0$ and $x=3.5$ , the y-values go from 4.0 (positive) to -0.2 (negative), respectively. Therefore, there must be a zero in this interval.

From $x=4.0$ and $x=4.5$ , the y-values go from -0.8 (negative) to 0.1 (positive), respectively. Therefore, there must also be a zero in this interval.