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3 years ago

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Need help................

1 answer:

Triss [41]3 years ago

6 0

827537517172763 kahvxjx

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A boy had 4 marbles and lost one. How many marbles does he have now?

AVprozaik [17]

Answer:

3

Step-by-step explanation:

4-1

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3 years ago

A schools principal wants to determine which type of speaker the students prefer to invite to an assembly for the entire student

frosja888 [35]

For a survey like this, you want to take a random sample. It would be a good idea to use an alphabetical list of the students. Then, you could randomly select students from the list.

The principal would want to avoid surveying all the same type of students. For example, don't just ask the athletes.

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3 years ago

A basketball player stands near the middle of the court and throws the ball toward the basket.

kompoz [17]

Answer:

A function to represent the height of the ball in terms of its distance from the player's hands is $y=\frac{-1}{54}(x-18)^2+12$

Step-by-step explanation:

General equation of parabola in vertex form $y= a(x-h)^2+k$

y represents the height

x represents horizontal distance

(h,k) is the coordinates of vertex of parabola

We are given that The ball travels to a maximum height of 12 feet when it is a horizontal distance of 18 feet from the player's hands.

So,(h,k)=(18,12)

Substitute the value in equation

$y=a(x-18)^2+12$ ---1

The ball leaves the player's hands at a height of 6 feet above the ground and the distance at this time is 0

So, y = 6

So, $6=a(0-18)^2+12$

6=324a+12

-6=324a

$\frac{-6}{324}=a$

$\frac{-1}{54}=a$

Substitute the value in 1

So, $y=\frac{-1}{54}(x-18)^2+12$

Hence a function to represent the height of the ball in terms of its distance from the player's hands is $y=\frac{-1}{54}(x-18)^2+12$

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3 years ago

Which number is irrational, an integer, and a real number?

Montano1993 [528]

name me some numbers plz

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3 years ago

1. Janessa is playing a board game with two friends. Using a single die, one friend rolled a four, and the other friend rolled a

SOVA2 [1]

Answer:

1) 3, 4

2) . 1, 2, 3, 4, 5, 6

3) 5, 6

4) . 1, 2, 5, 6

Step-by-step explanation:

7 0

2 years ago

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