All categories

3 years ago

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5

Mathematics

1 answer:

BigorU [14]3 years ago

7 0

Not for sure but maybe, -0.39285714285 if it’s correct hope it helps!

You might be interested in

Gertrude has a life insurance policy that will pay her family $97,000 per year if

schepotkina [342]

Answer:

90000 srry if im wrong

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Let L be a tangent line to the hyperbola x y = 2 at x = 9 . Find the area of the triangle bounded by L and the coordinate axes.

mafiozo [28]

Answer:

$A = 4$

Step-by-step explanation:

The equation of the slope of the tangent line L is obtained by deriving the equation of the hyperbola:

$y = \frac{2}{x}$

$y'=-2\cdot x^{-2}$

The numerical value of the slope is:

$y' = -2 \cdot (9)^{-2}\\y' = -\frac{2}{81}$

The component of the y-axis is:

$y = \frac{2}{9}$

Now, the tangent line has the following mathematical model:

$y = m \cdot x + b$

The value of the intercept is found by isolating it within the equation and replacing all known variables:

$b = y - m \cdot x$

$b = \frac{2}{9}-(-\frac{2}{81} )\cdot (9)\\b = \frac{4}{9}$

Thus, the tangent line is:

$y = -\frac{2}{81}\cdot x + \frac{4}{9}$

The vertical distance between a point of the tangent line and the origin is given by the intercept.

$d_{y} = \frac{4}{9}$

In order to find horizontal distance between a point of the tangent line and the origin, let equalize y to zero and clear x:

$-\frac{2}{81}\cdot x + \frac{4}{9}=0$

$-\frac{2}{9}\cdot x + 4 = 0$

$x = 18$

$d_{x} = 18$

The area of the triangle is computed by this formula:

$A = \frac{1}{2}\cdot d_{x}\cdot d_{y}$

$A = \frac{1}{2}\cdot (18)\cdot (\frac{4}{9} )$

$A = 4$

4 0

4 years ago

Simplify: 8^2 + 9(12 / 3*2) -7

Naily [24]

Answer:

357 / 2

Step-by-step explanation:

your answer would have been 178.5 but just a reminder always do whats in the exponets

5 0

3 years ago

I only need the step by step the answer is correct but I need step by step. Thx if u answer dis.

Rainbow [258]

I toltaly agree with you

4 0

3 years ago

Read 2 more answers

Math experts only please help me

katovenus [111]

The correct answer is A. 2cm
18 2cm
---- = ----
45 5cm

hope this helps

6 0

3 years ago

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5​

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5