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3 years ago

Type the correct answer in the box. Use numerals instead of words. If necessary, use for the fraction bar.

Mathematics

1 answer:

Zanzabum3 years ago

6 0

Answer:

x = -7/5

Step-by-step explanation:

Given the equation

(4-8x+5) - (-33x - 26) = 0

To get variable x, we will open the bracket first

9-8x + 33x + 26 = 0

35+25x = 0

35 = -25x

x = -35/25

x = -7/5

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3 years ago

Michael sold property for much more than he originally paid. The difference

Alexeev081 [22]

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Step-by-step explanation:

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3 years ago

Solve 8×+9y=-5<br> -8×-9y=5

Paul [167]

Hi there,

Question: Need to Solve for y.
8×+9y=-5
-8×-9y=5

Answer:

8 × +9y = -5

Solve your equation in steps:
(8)(9)y = -5

Step 1: Simplify both sides of the equation
72y = -5

Step 2: Divide both sides by 72
72y/72 = -5/72y

Then when your done, you get your answer y= -5/72

Answer:

-8 × -9y = 5

Solve your equation in steps:
((-8)(-9))(y) = 5

Step 1: Simplify both sides of the equation.
72y = 5

Step 2: Divide both sides by 72.
72y/72 = 5/72

Then when your done, you get your answer y= 5/72

So here is the answers for both math problems.
8 × +9y = -5 is y= -5/72
-8 × -9y = 5 is y= 5/72

Hope this helps!

6 0

3 years ago

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. 7x2 + xy + 7y2 = 15, (1, 1

riadik2000 [5.3K]

Assume $y=y(x)$ .

$7x^2+xy+7y^2=15$
$\dfrac{\mathrm d}{\mathrm dx}[7x^2+xy+7y^2]=\dfrac{\mathrm d}{\mathrm dx}[15]$
$14x+y+x\dfrac{\mathrm dy}{\mathrm dx}+14y\dfrac{\mathrm dy}{\mathrm dx}=0$
$\dfrac{\mathrm dy}{\mathrm dx}(x+14y)=-(14x+y)$
$\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac{14x+y}{x+14y}$

The slope of the tangent line to the curve at $(a,b)$ is then $-\dfrac{14a+b}{a+14b}$ , so the tangent to $(1,1)$ has slope

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=-\dfrac{15}{15}=-1$

The point-slope form of the tangent line is then

$y-1=-(x-1)\iff y=-x+2$

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3 years ago

Solve the equation X/-2=5

Ipatiy [6.2K]

Answer:

$\boxed {x = -10}$