All categories

3 years ago

-3x(x + y) +5y if x=2 y= -5

Mathematics

2 answers:

Aleks [24]3 years ago

8 0

Answer:

squareroot x

Step-by-step explanation: y' = x + 5y xy' - 2y = x^2 x^2y' + 2xy = cos^2 x xy' + y = squareroot x

Anastaziya [24]3 years ago

3 0

buddy help me i need help quick go see my question i need YOU to answer it

You might be interested in

HELP WITH MATHEMATICS ALG 1 PLEASEfwe

stira [4]

The equation is y=-2x ^ 2 + 4 x + 30 that’s the equation thru the proabola but if you do point slope form then it is y=18x+54 so it depends what your working on in class

6 0

3 years ago

Read 2 more answers

Solve each equation. If exact roots cannot be found, state the consecutive integers between which the roots are located.

vodomira [7]

Answer:

x=2

Step-by-step explanation:

x^2+10x+24=0

12x=24=0

12x=24

x=2

My math is rusty so this may not be the right answer.

3 0

3 years ago

Ellie drives 22.5 miles in 45 minutes. If she drove three hours in total at the same rate, how far did she go?

Cloud [144]

Answer:

Step-by-step explanation:

3 hours = 180 mins

180 ÷ 45 = 4. so Ellie will drive 4x more miles in 3 hours.

22.5 × 4 = 90

8 0

3 years ago

How can you solve for x in the proportion StartFraction 7 over 8 EndFraction = StartFraction x over 24 EndFraction? Set the sum

dusya [7]

Answer: the last one

Step-by-step explanation: because 7 times 24 equals 168 and x would be 21 so 21 times 8 equals 168.

5 0

4 years ago

Read 2 more answers

Write a linear equation in Slope-Intercept Form for a line that goes through the

Kitty [74]

Answer:

y = -2x -9

Step-by-step explanation:

<h2><u>in order to solve this question you have to do the following : </u></h2>

1. find the midpoint of the coordinates given

2. find the gradient of the line

3. make the equation

<h3><em><u>STEP : The midpoint </u></em></h3>

formula of the midpoint is

$\frac{x2 + x1}{2} , \frac{y2 + y1}{2}$

now place the values in the equation :

$\frac{-4 +-2}{2} , \frac{-5 + -1 }{2}$

midpoint = ( -3 , -3)

<h3><em><u>STEP 2 : The gradient </u></em></h3>

formula of finding the gradient

$\frac{y2-y1}{x2-x1}$

insert the values in the equation:

$\frac{-5-(-1)}{-2-(-4)}$

= $\frac{-4}{2} = -2$

gradient = -2

<h3><em><u>STEP 3: Form the equation </u></em></h3>

use the formula of the equation :

$(Y - y1) = m( X - x1)$

now make use of the gradient(m) and the midpoints and insert into the equation

(y-(-3)) = -2(x -(-3))

hence

y+3 = -2 (x +3)

y= -2x -6 -3

5 0

3 years ago