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3 years ago

6

Use a tree diagram or systematic list to determine the number of ways a nickel, a dime, and a quarter can be flipped to get exac

tly one tail. Remember outcomes can be described with strings of T's and H's.

1 answer:

Eva8 [605]3 years ago

8 0

Is there any options I can chose from

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One T-shirt is sold for every 5 people who attend a concert.

Tcecarenko [31]

Answer:

5:1

Step-by-step explanation:

That's just how ratios work.

5 0

2 years ago

What is the positive solution to 2x^2=72?

Yanka [14]

2x^2 = 72

Divide both sides by 2:

X^2 = 36

Take the square root of both sides

X = 6

8 0

2 years ago

The function y=-x^2+65x+256 models the number y of subscribers to a website, where x is the number of days since the website lau

Wittaler [7]

Answer:

$y = 30x+290$

Step-by-step explanation:

Given

$y=-x^2+65x+256$

Required

The linear function of a competitor's website

On day 1, both websites have the same subscribers.

This implies that:

$y=-x^2+65x+256$

Substitute: $x =1$

$y=-(1)^2+65*1+256$

$y=-1+65+256$

$y=320$

This implies:

$(x_1,y_1) = (1,320)$

On day 34, both websites have the same subscribers.

This implies that:

$y=-x^2+65x+256$

Substitute: $x =34$

$y=-(34)^2+65*34+256$

$y=-1156+2210+256$

$y=1310$

This implies:

$(x_2,y_2) = (34,1310)$

To calculate the linear function of the competitor, we have:

$(x_1,y_1) = (1,320)$

$(x_2,y_2) = (34,1310)$

Calculate slope (m)

$m = \frac{y_2 - y_1}{x_2 -x_1}$

$m = \frac{1310 - 320}{34-1}$

$m = \frac{990}{33}$

$m = 30$

The equation is then calculated as:

$y = m(x - x_1) + y_1$

This gives:

$y = 30 * (x - 1) + 320$

Open bracket

$y = 30x - 30 + 320$

<em></em> $y = 30x+290$ <em> --- This represents the linear function of the competitor's website</em>

5 0

2 years ago

Write declaration statements to declare and initialize two variables: one is an integer variable named age, initialized to 18, a

Alla [95]

Answer:

int age;

age=18;

float weight;

weight=114.5F;

Step-by-step explanation:

int age; \\ it is declared as integer because 18 is an integer value

age=18; \\ initialized as 18 is stored in the variable 'age'

float weight; \\ weight is declared as float because it's value is floating or decimal value which cannot be declared as integer value

weight=114.5F; \\ F shows that it's single floating type value of 32 bits, if F is not written then it means it double floating type value which is 64 bits long

7 0

3 years ago

The east room of the White House is 79 feet long by 36 feet wide what is the area and what is the perimeter of the east room

prisoha [69]

Assuming it is a rectangular room it would be a perimeter of 151ft.

And the area would be 2844ft

Hope this helps!

4 0

2 years ago

Read 2 more answers