Ask question

Ask question

All categories

Anastaziya [24]

3 years ago

10

A ball is thrown into the air with an initial upward velocity of 45 ft/s its height is(h) in feet after t seconds is given by th

e function h = -16t^2 + 45t + 6 after about how many seconds will the ball hit the ground ?
a. 3
b. 5
c. 6

1 answer:

Iteru [2.4K]3 years ago

7 0

Is it just a b c or is there a d or more

You might be interested in

Stacey is selling tickets to the school play. The tickets are $8 for adults and $3 for children. She sells twice as many adult t

Leona [35]

48 adult tickets and 24 children tickets were sold.

Step-by-step explanation:

Given,

Cost of one adult ticket = $8

Cost of one child ticket = $3

Total worth of sold tickets = $456

Let,

Number of adult tickets sold = x

Number of child ticket sold = y

According to given statement;

8x+3y=456 Eqn 1

x = 2y Eqn 2

Putting value of x from Eqn 1 in Eqn 2

$8(2y)+3y=456\\16y+3y=456\\19y=456$

Dividing both sides by 19

$\frac{19y}{19}=\frac{456}{19}\\y=24$

Putting y=24 in Eqn 2

$x=2(24)\\x=48$

48 adult tickets and 24 children tickets were sold.

Keywords: linear equation, substitution method

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Given f(x)= 2x^3+kx-1, and x+1 is a factor of f(x), then what is the value of k?

VMariaS [17]

Answer:

put x=-1, and the rest will be easy

5 0

2 years ago

Read 2 more answers

What is the formula to find the area of a rectangle.

prohojiy [21]

area of rectangle= length × width

here I think I have to draw a rectangle (using insert you can easily get a rectangle)

6 0

3 years ago

List all sets that apply for 0.6

uranmaximum [27]

Answer:

i know

Step-by-step explanation:0.6

3 0

3 years ago

Urgent ! <br>i can't seem to solve this :(

Archy [21]

Answer: 15 cm to the highest total ; amount of triangles: 25

Step-by-step explanation: for the height just add 3 cm until you reach the top, which will give you 15 cm

for the amount just count them and for the top top layer count up to 9, which will give you 25 triangles.

3 0

3 years ago