Ask question

Ask question

All categories

3 years ago

14

Explain why when dividing fractions with the same denominator, you can find the quotient by dividing the numerators. Support you

r answer with an example using one or more mixed numbers.

1 answer:

astraxan [27]3 years ago

3 0

Answer:

Why not

Step-by-step explanation:

You might be interested in

Implicit differentiation in terms of x and y

Volgvan

For implicit differentiation, you are using the chain rule
$f'(x) = g'(u(x))* \frac{du}{dx}$
Except u(x) = y, So after every "y" term is differentiated it will be multiplied by dy/dx.

17) $y^3 +4 = 3x \\ 3y^2 \frac{dy}{dx} +0 = 3$
Then you solve for dy/dx as if its a variable.
$\frac{dy}{dx} = \frac{3}{3y^2} = \frac{1}{y^2}$

18) Here lets review product rule:
$(fg)' = f'g + fg'$
Take derivative of each term
$2x^2 = -3y^3 +3x^2y^3 \\ 4x = -9y^2 \frac{dy}{dx} + (6x)(y^3) + (3x^2)(3y^2 \frac{dy}{dx}) \\ 4x = -9y^2 \frac{dy}{dx} +6xy^3 +9x^2y^2 \frac{dy}{dx}$
Solve for dy/dx using factoring:
$4x - 6xy^3 = -9y^2 \frac{dy}{dx}+9x^2 y^2 \frac{dy}{dx} \\ 4x - 6xy^3 = \frac{dy}{dx}(-9y^2 +9x^2 y^2) \\ \frac{dy}{dx} = \frac{4x - 6xy^3}{-9y^2 +9x^2 y^2}$

8 0

3 years ago

There are 100 teachers in a school. 60 teach science, 25 teach humanities, 15 teach both science and humanities. Find the number

UkoKoshka [18]

Answer:

15

Step-by-step explanation:

The total number of teachers in the school is 100.

The number who teach Science is 60

The who teach humanities is 25.

The number that teach both humanities and Science is 15.

We want to find the number who teach Science but not Humanities.

We obtain this by subtracting the number of teachers who teach both subjects from the number that teach Science.

$= 60 - 15 = 45$

Therefore 25 teaches science but not Humanities

8 0

3 years ago

twenty seven out of forty dentists recommended a certain whitener for teeth. if 1080 dentists recommended the whitener in the su

Anestetic [448]

Answer:

1,600 dentists were surveyed in total.

Step-by-step explanation:

We can set up a proportion for this problem:

$\frac{27}{40} = \frac{1080}{x}\\\\\\$

Now we can cross multiply:

$27*x = 1080*40\\\\27x = 43,200\\\\27x/27 = 43,200/27\\\\x = 1,600$

1,600 dentists were surveyed in total.

3 0

3 years ago

Solve for X, and show the equation you would use to solve.

Lady_Fox [76]

Opposite interior angles are equal, so

4x - 10 = 2x + 20

2x - 10 = 20

2x = 30

x = 15

6 0

3 years ago

Read 2 more answers

PLEASE HELP ME 16 POINTS PLEASE HELP

xenn [34]

Answer:

3/1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers