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dmitriy555 [2]
2 years ago
8

3х + у — z = 2 2x – Зу – 2z = 1 4х – у — Зz =0

Mathematics
1 answer:
Arisa [49]2 years ago
7 0

Answer:

it is 3

Step-by-step explanation:

i got a 100 on the test

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The magnitude scale for earthquakes is based on powers of 10. A magnitude 8 earthquake represents 108, while a magnitude 3 earth
Dmitry_Shevchenko [17]

Answer:

1.049

Step-by-step explanation:

Divide 103 into 108

7 0
2 years ago
X^3+3x^2y+3xy^2+y^3<br> ————————————<br> X^3+y^3
Hoochie [10]
To factor this fraction, you have be be aware of two special factoring formula:
a^3<span> + </span>b^3<span> = (</span>a<span> + </span>b)(a^2<span> – </span>ab<span> + </span>b^2<span>)

</span><span>(a+b)³ = a³ + 3a²b + 3ab² + b³

You can see the top part in this case is (x+y)^3, and the bottom (denominator) can be factor into (x+y)(x^2-xy+y^2)
we can cancel (x+y), so what we have left is (x+y)^2/(x^2-xy+y^2)
or (x^2+2xy+y^2)/(x^2-xy+y^2)
</span>
7 0
3 years ago
what is the equation, in slope-intercept from, of the line that is perpendicular to the line y - 4 = -2/3 (x -6 ) and passes thr
Ne4ueva [31]

Turn y - 4 = -2/3(x - 6) into a linear equation.

y - 4 = -2/3(x - 6)

y - 4 = -2/3x + 4

 +4                +4

y = -2/3x + 8

The equation that is perpendicular to y = -2/3x + 8 is y = 3x + 4 as shown in the image below using a graph.


5 0
3 years ago
It is estimated that each guest at a party will eat 4/9 pounds of chocolates. How many guest can be served
Alex_Xolod [135]
7 out of 12 pounds of chocolate
5 0
2 years ago
Read 2 more answers
1. Use the Law of Levers to solve the problem, x1y1=x2y2.
Mademuasel [1]
1)  Never heard of someone referring to the Law of Levers before, must be showing my age.  A system as you describe is at equilibrium when the net torque is equal to zero. Since torque is Fr=mgr so for this system we have a sum of:

27g*10+30g*x=0  The sum must be zero to be at equilibrium, dividing both sides by g you have:

270+30x=0

270=-30x

x=-9

The negative just indicates that the magnitude of 9 is on the opposite side of the fulcrum, so x=9ft in magnitude.

2)  Inverse variation is of the form y=k/x, in this case we are given a point so we can solve for the constant, k, of variation...

y=k/x, and we are given y=-12 when x=5 so

-12=k/5

k=-60  so the equation is:

y=-60/x which can be expressed as

xy=-60


5 0
3 years ago
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