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3 years ago

Add (13x – 4) and (–6x + 15)

Mathematics

1 answer:

kompoz [17]3 years ago

4 0

(13x – 4) + (–6x + 15) =

13x - 4 - 6x + 15 =

7x + 11

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Complete the equation of the line whose slope is -2 and y-intercept is (0, -8).

Nutka1998 [239]

Answer:

y = -2x-8

Step-by-step explanation:

The equation for a slope is y=mx+b.

m = Slope (-2 in this case)

b = y-intercept (-8 in this case)

3 0

3 years ago

Find dy/dx at (0,0) if x^2cosy-sin(y+4x)+ln(1+x)=0

Ksenya-84 [330]

$x^2\cos y-\sin(y+4x)+\ln(1+x)=0$

Differentiate both sides with respect to $x$ , treating $y$ as a function of $x$ :

$2x\cos y-x^2\sin y\dfrac{\mathrm dy}{\mathrm dx}-\cos(y+4x)\left(\dfrac{\mathrm dy}{\mathrm dx}+4\right)+\dfrac1{1+x}=0$

$2x\cos y-4\cos(y+4x)-\left(x^2\sin y+\cos(y+4x)\right)\dfrac{\mathrm dy}{\mathrm dx}+\dfrac1{1+x}=0$

$\left(x^2\sin y+\cos(y+4x)\right)\dfrac{\mathrm dy}{\mathrm dx}=2x\cos y-4\cos(y+4x)+\dfrac1{1+x}$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x\cos y-4\cos(y+4x)+\frac1{1+x}}{x^2\sin y+\cos(y+4x)}$

At the point (0, 0), the derivative is

$\dfrac{\mathrm dy}{\mathrm dx}(0,0)=\dfrac{0-4\cos0+1}{0+\cos0}=-3$

3 0

4 years ago

Find the volume 92/3*4 1/5*1 1/4=

Fudgin [204]

Answer:

161

Step-by-step explanation:

$\frac{92*21*5}{3*5*4} \\161$

4 0

3 years ago

Read 2 more answers

virgil is traveling around a circular island. if he travels a 1000 mile course keeping a constant distance of 200 miles from the

julsineya [31]

We know that
circumference of a circle=2*pi*r
for r=200 miles
circumference of a circle=2*pi*200-----> 1256 miles

if 360° (full circle) has a length of------------------> 1256 miles
X°----------------> 1000 miles
x=1000*360/1256------> x=286.62°

the answer is
286.62 degrees

4 0

4 years ago

The sum of the numbers 120. The third number is 4 times the second. The first number is 6 less than the second. What are the num

olga_2 [115]

Answer:

First number: 15

Second number: 21

Third number: 84

Step-by-step explanation:

5 0

4 years ago