All categories

3 years ago

PLS help..............

Mathematics

2 answers:

garik1379 [7]3 years ago

8 0

Answer:

-189/10

Step-by-step explanation:

Reil [10]3 years ago

6 0

Answer:

The answer is -18.9 or -189/10

You might be interested in

Houa is ordering a taxi from an online taxi service. The taxi charges $3.50 just for the pickup and then an additional $1.25 per

statuscvo [17]

Answer:

Cost for 6 Miles: 7.50$

Cost in General: 11$

Step-by-step explanation:

1.25x6=7.50

7.50+3.50=11

8 0

3 years ago

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

10) xc = rd , for x Help plz

ExtremeBDS [4]

Answer:

x = rd/c

Step-by-step explanation:

xc = rd

xc/c = rd/c

x = rd/c

8 0

3 years ago

Which of the following lists all of the positive factors of 18?

babymother [125]

The square root of 18 is 4.2426, rounded down to the closest whole number is 4. Testing the integer values 1 through 4 for division into 18 with a 0 remainder we get these factor pairs: (1 and 18), (2 and 9), (3 and 6). The factors of 18 are 1, 2, 3, 6, 9, 18.

Step-by-step explanation:

4 0

3 years ago

Name the quadrant in which sinθ < 0 and cosθ > 0. I II III IV

qaws [65]

Quadrant IV
at quadrant IV, sinA is negative value while cosA is positive value

6 0

3 years ago