All categories

2 years ago

16 PONITS!!!! The expression x−2y1/2 x1/3y−1 , where x > 1 and y > 1, is equivalent to which choice?

Mathematics

1 answer:

Rashid [163]2 years ago

7 0

Answer:

your answer is b

Step-by-step explanation:

You might be interested in

A large pizza at angelo's pizzeria has a diameter of 14 inches. what is the area of the pizza? use 3.14 for π.round to the neare

Korolek [52]

The answer is 153.9 inches squared

7 0

2 years ago

a spherical balloon is deflated at a rate of 256pi/3 cm^3/sec. at what rate is the radius of the balloon changing when the radiu

Hunter-Best [27]

What you need to look for is $\frac { dr }{ dt }$ when r=8.

Now:

$Volume\quad of\quad a\quad sphere:\\ \\ V=\frac { 4 }{ 3 } \pi { r }^{ 3 }$

$\therefore \quad \frac { dV }{ dr } =\frac { 4 }{ 3 } \pi \cdot 3{ r }^{ 2 }=4\pi { r }^{ 2 }\\ \\ \therefore \quad \frac { dr }{ dV } =\frac { 1 }{ \frac { dV }{ dr } } =\frac { 1 }{ 4\pi { r }^{ 2 } }$

$And:\\ \\ \frac { dV }{ dt } =-\frac { 256\pi }{ 3 } \\ \\ Therefore:\\ \\ \frac { dr }{ dt } =\frac { dr }{ dV } \cdot \frac { dV }{ dt }$

$\\ \\ =\frac { 1 }{ 4\pi { r }^{ 2 } } \cdot -\frac { 256\pi }{ 3 } \\ \\ =-\frac { 256 }{ 12 } \cdot \frac { \pi }{ \pi } \cdot \frac { 1 }{ { r }^{ 2 } }$

$\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec$

3 0

3 years ago

In a canoe race, team a is traveling 6 miles per hour and is 2 miles ahead of team

malfutka [58]

Given that In a canoe race, team a is traveling 6 miles per hour and is 2 miles ahead of team b.

Team b is also traveling 6 miles per hour. The teams continue traveling at their current rates for the remainder of the race.

The system of linear equations that represents this situation is given by

d = 6t + 2
d = 6t

4 0

3 years ago

Read 2 more answers

Write each mixed as a decimal. a) 1 3/4 b) 2 13/20

kakasveta [241]

Answer:

a. 1.75

b. 2.65

those are as a decimal

6 0

3 years ago

What is the slope of the line that is parallel to the line y = -2x + 5? slope =

11111nata11111 [884]

Answer:

-2

Step-by-step explanation:

Slope intercept form is

y = mx + b

Where m is the slope

Parallel lines have the same slope

----------------------------

y = -2x + 5

is in slope intercept form

the slope, m = -2

The slope of the parallel ine will be the same

m = -2

4 0

3 years ago