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solniwko [45]
3 years ago
8

2(x+3)=x-4 what is x?

Mathematics
1 answer:
KIM [24]3 years ago
4 0

Answer:

x=-10

Step-by-step explanation:

2(x+3)=x-4

2x+6=x-4, subtract x from both sides

x+6=-4, subtract 6 from both sides

x=-10

Plug it back in to check

2(-10+3)=-10-4

2(-7)=-14

-14=-14

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Translate the sentence into an equation.<br> Twice the difference of a number and 6 is equal to 5.
Nookie1986 [14]

Answer:

2(x-6)=5

I believe this is the answer

4 0
3 years ago
Which of the following are roots of the polynomial function? Check all that apply. F(x) = x3 - 5x2 - 13x-7
tigry1 [53]

Answer:

Step-by-step explanation:

4 0
3 years ago
Use Lagrange multipliers to find the maximum and minimum values of f(x,y)=x+4y subject to the constraint x2+y2=9, if such values
Vesnalui [34]

The Lagrangian is

L(x,y,\lambda)=x+4y+\lambda(x^2+y^2-9)

with critical points where the partial derivatives vanish.

L_x=1+2\lambda x=0\implies x=-\dfrac1{2\lambda}

L_y=4+2\lambda y=0\implies y=-\dfrac2\lambda

L_\lambda=x^2+y^2-9=0

Substitute x,y into the last equation and solve for \lambda:

\left(-\dfrac1{2\lambda}\right)^2+\left(-\dfrac2\lambda\right)^2=9\implies\lambda=\pm\dfrac{\sqrt{17}}6

Then we get two critical points,

(x,y)=\left(-\dfrac3{\sqrt{17}},-\dfrac{12}{\sqrt{17}}\right)\text{ and }(x,y)=\left(\dfrac3{\sqrt{17}},\dfrac{12}{\sqrt{17}}\right)

We get an absolute maximum of 3\sqrt{17}\approx12.369 at the second point, and an absolute minimum of -3\sqrt{17}\approx-12.369 at the first point.

4 0
3 years ago
Find the missing probability.
Westkost [7]

The value of the missing probability is:

P(A) = 1/5

So the correct option is D.

<h3>How to find the missing probability?</h3>

First, we know that:

P(A∩B) = probability that events A and B are true = 3/100

And we also know that:

P(B|A) = probability that event B is true given that event A is true = 3/20

Here we have the rule:

P(A∩B) = P(B|A)*P(A)

Replacing the first two:

3/100 = (3/20)*P(A)

Solving for P(A), we get:

(3/100)*(20/3) = 1/5 = P(A).

So we conclude that the correct option for the missing probability is the one in option D.

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

4 0
2 years ago
If the price of an object dropped 75% down to $85.99 what was the original price?
Serggg [28]
If the price of an object drastically dropped 75%, then the dropped price is equal to 25% of the original price. That means that to find the original price, we have to multiply by the reciprocal of 25% (4). The original price would be $85.99 * 4 which is $343.96.
6 0
3 years ago
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