All categories

3 years ago

Can you give me the answers to this

Mathematics

1 answer:

Virty [35]3 years ago

3 0

This is the site i use for textbooks and worksheets
http://www.slader.com/subject/math/algebra/textbooks/

You might be interested in

The height h in feet of a ball thrown vertically upward from the top of a 288-foot tall building is given by h=288+48t-16t^2 whe

mr Goodwill [35]

6 sec can take penny to strike the ground.

Solution:

Given data:

$H_0=288$ feet

$V_0=48$ feet

$h(t)=288+48t-16t^2$

Re-arrange the terms from greatest degree to smallest degree.

$h(t)=-16t^2+48t+288$

We can solve it by applying quadratic formula,

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

Here a = –16, b = 48, c = 288

$$t=\frac{-48\pm \sqrt{48^2-4(-16)(288)}}{2(-16)}$

$$t=\frac{-48\pm \sqrt{2304+18432}}{-32}$

$$t=\frac{-48\pm \sqrt{20736}}{-32}$

$$t=\frac{-48\pm144}{-32}$

Now, write find two t's using plus and minus operation.

$$t=\frac{-48+144}{-32},\ \ t=\frac{-48-144}{-32}$

$$t=\frac{96}{-32},\ \ t=\frac{-192}{-32}$

t = –3 (or) t = 6

We cannot write time is negative. so neglect t = –3.

Therefore t = 6.

Hence 6 sec can take penny to strike the ground.

8 0

2 years ago

PLEASE HELP!!!

GalinKa [24]

Answer:

14-5i

Step-by-step explanation:

Distribute using FOIL

12+3i-8i-2i^2

i^2 = -1

12+3i-8i-2(-1)

12+3i-8i+2

Combine like terms

14-5i

4 0

2 years ago

30 POINTS!!!!!

Tomtit [17]

Teh answer is 4 cm^2

5 0

3 years ago

Read 2 more answers

Using polynomial identities, multiply the expression (2x+8y)(2x-8y)

igomit [66]

(2x)sqrt 2- 64y2 is the answer

3 0

3 years ago

4 + x = 12 solve equation ///ASAP /// WILL MARK BRAINLIEST

Bess [88]

Answer:

Answer is 8.

Step-by-step explanation: 12-4=8 so 4+8=12

hoped this helped you

4 0

3 years ago