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Lerok [7]
3 years ago
13

Please help with my math due soon

Mathematics
1 answer:
MaRussiya [10]3 years ago
4 0

Answer:

x=2 y=6

Step-by-step explanation:

Using the substitution method 3x=9x-12 then combine like -6x=-12 then divide by -6 and x=2 then plug x=2 into any equation for example the bottom one. y=3(2) which y equal 6

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Perform each indicated operation
MissTica

Answer: \frac{x+6}{x-4}

Step-by-step explanation:

First you need know some general formuals of factorization such as

x^3+y^3=(x+y)(x^2-xy+y^2) so you have x^3+64=X^3+4^3=(x+4)(x^2-4x+4^2)

And, x^2-y^2=(x-y)(x+y) so you have 2x^2-32=2(x^2-16)=2(x^2-4^2)=2(x+4)(x-4)

If you use them, then you can modify your equations such as

\frac{x^3+64}{2x^2-32} ÷ \frac{x^2-4x+16}{2x+12} = \frac{(x+4)(x^2-4x+4^2)}{2(x+4)(x-4)} ÷ \frac{x^2-4x+16}{2(x+6)}  =  \frac{(x+4)(x^2-4x+4^2)}{2(x+4)(x-4)} . \frac{2(x+6)}{{x^2-4x+16}} = \frac{1}{x-4}.\frac{x+6}{1}=\frac{x+6}{x-4}

4 0
3 years ago
I really need help with this!!!
natali 33 [55]
The correct answers are
1. 2c+b-c

2. 31
7 0
3 years ago
Solve the system <br><br><br> x - 2y = -6<br> 3x + y = -4
stepan [7]


{x-2y=-6

{3x+y=-4     /*2

{x-2y=-6

<u>{6x+2y=-8     </u> (+)

7x=-14    /:7

x=-2

3x+y=-4

3*(-2)+y=-4

-6+y=-4

y=2

Solution:  (-2; 2)

5 0
3 years ago
[98 POINTS]<br><br> Explain how you would calculate the volume of the figure shown.<br> Be detailed.
N76 [4]

Answer:

1282.81824016

Step-by-step explanation:

Find the volume of the cone (the formula is π×r²×h/3) and the volume is 359.19

Now find the volume of the cylinder which is 923.6282401554 and we just add them together which is 1282.81824016

8 0
3 years ago
Read 2 more answers
If you flip a coin 100 times and get 74 heads and 26 tails. What is the probability that the next flip results in a tail?
ollegr [7]
It will always be a 50 50 chance
4 0
3 years ago
Read 2 more answers
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