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Len [333]
3 years ago
8

*please be serious* 3y = -x - 12 *solve for y

Mathematics
2 answers:
ELEN [110]3 years ago
6 0
Y = -x/3 - 4

Divide both sides by 3. 12/3 is 4 and since we don’t know what x is, it’s -x/3.
Anna [14]3 years ago
5 0

Answer: y=-\frac{1}{3}x-4

Step-by-step explanation:

To solve for y, we want to make sure y is isolated. SInce y is already isolated, all we need to do is divide both sides of the equation by 3.

3y=-x-12          [divide both sides by 3]

y=-\frac{x}{3} -4 or y=-\frac{1}{3}x-4

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Kevin is 3 years older than twice Jane's age. The sum of their ages is 39. How old is each person?
podryga [215]

Answer:

39 - 3 = 36

36/3 = 12

j = 12

Step-by-step explanation:

4 0
3 years ago
What is the multiplicity of each of the roots of the graph of f(x)=−-x^3+2x^2+3x?
DerKrebs [107]

Answer:

A. -1, multiplicity 1; 0, multiplicity 1; 3, multiplicity 1.

Step-by-step explanation:

Let f(x) = -x^{3}+2\cdot x^{2} + 3\cdot x, to determine its roots and multiplicities we proceed to factorize the polynomial:

1) -x^{3}+2\cdot x^{2} +3\cdot x Given

2) x\cdot (-x^{2}+2\cdot x + 3) Distributive property

3) x\cdot (x-3)\cdot (x+1) Quadratic formula/Result

The roots and multiplicities of f(x) = -x^{3}+2\cdot x^{2} + 3\cdot x are:

<em>0 (multiplicity 1)</em>

<em>3 (multiplicity 1)</em>

<em>-1 (multiplicity 1)</em>

Therefore, the correct answer is A.

4 0
3 years ago
Read 2 more answers
A person will eat 65apples in a year base on estimate how many apples do 3 family of 4eat each year?
bija089 [108]
3 times 4 is 12 and 12 times 65 is... 780 apples
6 0
3 years ago
The length of segment XY is 9 cm. Which statements
Pachacha [2.7K]

Answer: ↴

Length of Segment XY =>9 cm

Now We have to check options

YZ=>9 cm ( It can be true if XYZ is assumed to be isosceles triangle)

XZ=> 9 cm ( Same It also can be true if XYZ is assumed to be isosceles triangle)

XZ=>973 cm or 9.73 cm ( not clearly specified in question) But it is possible as Two sides can be taken of any length )

XZ= 2XY Again It is also possible

YZ is longest side In triangle There should be longest side if it is not equilateral.

So , XZ= 2XY and YZ is longest side are more accurately possibilities of triangle XYZ

3 0
4 years ago
Read 2 more answers
PLz DO it all I will give brainlest and thanks.
dolphi86 [110]
That’s the answers. Hope this helps

8 0
3 years ago
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