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2 years ago

Express 4x−7y=14 in slope-intercept form. Enter your answers in the boxes.

Mathematics

1 answer:

devlian [24]2 years ago

5 0

Y=2 7x2= 14
X= 7 4x7=28
28-14=14

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How do you solve 5x-2x+6x+40-9+1-x+3x-8+15+7

Aleonysh [2.5K]

5x-2x+6x+40-9+1-x+3x-8+15+7

First you would combine like terms:

5x - 2x + 6x - x + 3x = 11x and

40 - 9 + 1 - 8 + 15 + 7 = 46, so the simplified expression would be

11x + 46

3 0

2 years ago

Can someone pls pls help me?

vesna_86 [32]

Answer:

Hello! answer: 9

Step-by-step explanation:

Formula for triangle area: base × height ÷ 2 or base × height × 1/2

6 × 3 = 18 18 ÷ 2 = 9 therefore 9 is the area!

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2 years ago

Solve the given initial-value problem. the de is of the form dy dx = f(ax + by + c), which is given in (5) of section 2.5. dy dx

shutvik [7]

$\dfrac{\mathrm dy}{\mathrm dx}=\cos(x+y)$

Let $v=x+y$ , so that $\dfrac{\mathrm dv}{\mathrm dx}-1=\dfrac{\mathrm dy}{\mathrm dx}$ :

$\dfrac{\mathrm dv}{\mathrm dx}=\cos v+1$

Now the ODE is separable, and we have

$\dfrac{\mathrm dv}{1+\cos v}=\mathrm dx$

Integrating both sides gives

$\displaystyle\int\frac{\mathrm dv}{1+\cos v}=\int\mathrm dx$

For the integral on the left, rewrite the integrand as

$\dfrac1{1+\cos v}\cdot\dfrac{1-\cos v}{1-\cos v}=\dfrac{1-\cos v}{1-\cos^2v}=\csc^2v-\csc v\cot v$

Then

$\displaystyle\int\frac{\mathrm dv}{1+\cos v}=-\cot v+\csc v+C$

and so

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$\csc(x+y)-\cot(x+y)=x+C$

Given that $y(0)=\dfrac\pi2$ , we find

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so that the particular solution to this IVP is

$\csc(x+y)-\cot(x+y)=x+1$

5 0

2 years ago

Include step by step directions MAKE SURE ITS CORRECT

Yuliya22 [10]

Answer:56

Step-by-step explanation:do 180-68, then divide by 2(because the x angles are equal to each other.

7 0

2 years ago

50 POINTS AND BRAINIEST PLEASE HELP

exis [7]

Answer:

Step-by-step explanation:

If you notice very carefully then you will see that the line passes through the points :

( 1 , - 2 )

( - 1 , 2 )

Hence the value of x = 1 when the value of y = - 2 .

We know that - 2 × 1 = - 2

⇒ - 2 x = y

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Hence the first OPTION is correct .

Verification :

For points ( - 1 , 2 ) we can write :

y = - 2x

⇒ 2 = - 2 × - 1

⇒ 2 = 2

Hence the answer is verified .

Always try to use the converse of the graphical method .

( Nothing converse is there ... just saying the opposite steps of that method :P )

I mean in graphical method we plot points and then join , here identify the joined points and then make the equation .

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