3 years ago

L= 9.25 cm; A = 55.5 cm square

Mathematics

1 answer:

miv72 [106K]3 years ago

4 0

Answer:

shhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Step-by-step explanation:

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

A theater wants to build movable steps that they can use to go on and off the stage. They want the steps to have enough space in

GrogVix [38]

Answer:

fdwef

Step-by-step explanation:

4 0

3 years ago

A door has an area of 21 square feet. It is 7 feet tall. How wide is the door?

Sati [7]

Answer:

3 feet wide

Step-by-step explanation:

21/7= 3

8 0

3 years ago

Which expression is a difference of squares with a factor of 2x+5

Masteriza [31]

Answer:

4x^2 – 25

Step-by-step explanation:

i'vegot your back :))

4 0

2 years ago

What is 5/7-(-1/7) as a fraction?

Tanzania [10]

$\frac{5}{7} - \frac{1}{7}$

8 0

3 years ago

Read 2 more answers