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Goryan [66]
3 years ago
7

50 points

Mathematics
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:

b. w= 8x^2-2y / y

Step-by-step explanation:

Given:

(2*x^2)/y = (w+2)/4

Isolating w, we get:

w = (8*x^2)/y - 2  

Multiplying and dividing the second term in the right-side of the equality by y, we get:

w = (8*x^2)/y - 2*y/y  

Subtracting the fractions:

w = (8*x^2 - 2y)/y

Sergeeva-Olga [200]3 years ago
5 0

Answer:

b

Step-by-step explanation:

got it on edge

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HELP!!!!! PLEASE!!!!!
emmainna [20.7K]

Answer:

4

Step-by-step explanation:

It's a pythagorean triple

8 0
2 years ago
Read 2 more answers
Greatest to least 1.202, 1.29, 1.02
Lady bird [3.3K]
If you were to list these numbers in order from greatest to least, it would be 1.29, 1.202, 1.02.
Hope this helps!!
7 0
2 years ago
Please help! A-level maths.
astra-53 [7]

x+y=k\implies y=k-x

Substitute this into the parabolic equation,

k-x=6-(x-3)^2\implies x^2-7x+(k+3)=0

We're told the line x+y=k intersects C twice, which means the quadratic above has two distinct real solutions. Its discriminant must then be positive, so we know

(-7)^2-4(k+3)=49-4(k+3)>0\implies k

We can tell from the quadratic equation that C has its vertex at the point (3, 6). Also, note that

-1\le\sin t\le1\implies3\le3+2\sin t\le5\implies3\le x\le5

and

-1\le\cos2t\le1\implies2\le4+2\cos2t\le6\implies2\le y\le6

so the furthest to the right that C extends is the point (5, 2). The line x+y=k passes through this point for 2+5=k\implies k=7. For any value of k, the line x+y=k passes through C either only once, or not at all.

So 7\le k; in set notation,

\{k\mid 7\le k

4 0
3 years ago
Which is the completely factored form of 12x^3-60x^2+4x-20​
Shkiper50 [21]

Answer:

(12x²+4)(x-5)

Step-by-step explanation:

To factor the expression factor by grouping.

(12x³ - 60x²) + (4x - 20)

12x²(x - 5) 4(x-5)

(12x²+4)(x-5)

6 0
3 years ago
=4−13. Please. I need help
Tatiana [17]

Answer:

4-13=-9

Step-by-step explanation:

6 0
2 years ago
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