1.2 e⁻¹¹

Because you need a number between 1 and 10 for scientific notation. So you move the decimal over 11 places. Since you move it to the right, it becomes a negative exponent.

8 0

2 years ago

An 80-foot rope is attached to a boat

vfiekz [6]

An 80-foot rope is attached to a boat

7 feet above the water level as shown and a

boy jumps over the wake while

wakeboarding. What is the distance between

his hands and the water level?

80 ft

:[?] ft

Round to the nearest hundredth.

enter

Answer:2.81 feet

3 0

2 years ago

The edges of a cube increase at a rate of 2 cm divided by s. How fast is the volume changing when the length of each edge is 40

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Let the edge of the cube be a .

Given

$\frac{da}{dt} = 2 cm/s$

Volume V = a³

$\frac{dV}{dt} = 3a^ 2\frac{da}{dt}$

= 3a² x 2

= 6a²

If a = 40 cm

$\frac{dV}{dt} = 6 \times 40\times40$

= 9600 cm³/s .

5 0

2 years ago