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3 years ago

How many solutions does 4(x-5)+2=4x—18 have??

Mathematics

1 answer:

baherus [9]3 years ago

4 0

Only one. These problems always have one solution unless something has changed.

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I got in a big fight with my mom recently, I'm really lost and Idk what to do, My parents take my phone away all the time and th

lidiya [134]

Answer:

Gain their trust back. As someone who struggled with gaining trust I know that you just have to listen to them and gain it back. Its going to be hard but I am also going into highschool next year. For now tell them about your day and school work. try and keep good grades because that will help you to slowly gain it back. But if you do keep doing this bad stuff you went EVER get it back so for now just listen. Having fun in highschool and having trust is so much better than fighting with your parents and not being allowed to do stuff. And its going to take and long time so dont think that it will happen overnight.

3 0

3 years ago

Find the coordinates of the point in the first quadrant at which the tangent line to the curve (x)^3-xy+(y)^3 =0 is parallel to

Oksanka [162]

Differentiate implicitly:
 $3x^2-y-xy'+3y^2y'=0$

Solve for y
 $y'(3y^2-x)=y-3x^2
\\
\\y'={y-3x^2\over3y^2-x}$

When the tangent is parallel to the x-axis we have y'=0, so we must solve
 $y'={y-3x^2\over3y^2-x}=0\implies y=3x^2$

To find the actual value of x we plug this expression for y into the original equation
 $x^3-3x^3+27x^6=0
\\
\\x^3(27x^3-2)=0\implies x=\{0,{\sqrt[3]2\over3}\}$

Plugging this into the formula for y above gives the points
 $(0,0)\text{ and }({\sqrt[3]2\over3},{\sqrt[3]4\over3})$

which is where our tangent will be parallel to the x-axis.

8 0

2 years ago

Please tell me the anwer please asap

CaHeK987 [17]

Answer:

The equation is:

y = -15*x + 1200

and:

a = 120

b = 70

c = -1500

Step-by-step explanation:

This seems to be a linear relationship.

A linear relationship can be written as:

y = a*x + b

where a is the slope and b is the y-axis intercept.

For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:

a = (y2 - y1)/(x2 - x1).

Here we know that our line passes through the points (60, 300) and (20, 900)

Then the slope of this line is:

a = (900 - 300)/(20 - 60) = 600/(-40) = -15

Then this line is something like:

y = -15*x + b

To find the value of b, we know that this line passes through the point (60, 300) then when x = 60, we have y = 300.

Replacing these values in the above equation we get:

300 = -15*60 + b

300 + 15*60 = b = 1200

Then:

y = -15*x + 1200.

Now that we have this equation, we can complete the table.

a is the value for y, when x = 72

Then we can replace x by 72 in the above equation:

a = -15*72 + 1200 = 120

a = 120

b is the value of x when y = 150, then we need to replace y by 150

150 = -15*b + 1200

150 - 1200 = -15*b

(150 - 1200)/-15 = b = 70

then:

b = 70

c is the value of y when x = 180, then we need to replace x by 180.

c = -15*180 + 1200

c = -1500

5 0

2 years ago

Spend $1.85 & pay with a

svlad2 [7]

Maybe ..................

7 0

2 years ago

Marcel collects soccer cards. He has 24 cards in his collection. Four-sixths of his cards have been canceled. How many of the ca

Salsk061 [2.6K]

24 cards × 4/6 canceled

24 × 4/6 = 96/6 = 16 canceled

7 0

3 years ago