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IrinaVladis [17]
2 years ago
6

A triangle has an area of 2400cm^2. The angle between two adjacent sides of the triangle is 150°. If the length of one of the ad

jacent sides is 65cm, calculate the length of the other side correct to 3 significant figures.​
Mathematics
1 answer:
GuDViN [60]2 years ago
7 0

Answer: 73.9

Step-by-step explanation:

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Bumek [7]
It would be 19/6 as an improper fraction and 3 & 1/6 as a mixed number fraction.
6 0
3 years ago
Read 2 more answers
At what points does the curve r(t) = ti (4t − t2)k intersect the paraboloid z = x2 y2? (if an answer does not exist, enter dne.)
Aleonysh [2.5K]
\mathbf r(t)=x(t)\,\mathbf i+y(t)\,\mathbf j+z(t)\,\mathbf k=t\,\mathbf i+(4t-t^2)\,\mathbf k
\implies \begin{cases}x(t)=t\\y(t)=0\\z(t)=4t-t^2\end{cases}

So the paraboloid is given by

z(t)=x(t)^2y(t)^2\iff 4t-t^2=0

which holds for t^2-4t=t(t-4)=0, i.e. when t=0 and t=4.

To make sure this is correct, plug in t=0 and t=4 to find out the value of \mathbf r(t), and see if these points are on the paraboloid.

\mathbf r(0)=0\,\mathbf i+0\,\mathbf j+0\,\mathbf k\implies (0,0,0)
0=0^2\times0^2

\mathbf r(4)=4\,\mathbf i+0\,\mathbf j+(4\times4-4^2)\,\mathbf k\implies (4,0,0)
0=4^2\times0^2

Both of these hold, so the answer is correct.
8 0
3 years ago
Please help with my straight lines!!
Mrrafil [7]
Where is the question
8 0
3 years ago
What are the ratio of 18 red button ; 12 red button?
Daniel [21]
The right answer is 3:2
7 0
3 years ago
A system of equations has infinitely many solutions. If 2y – 4x = 6 is one of the equations, which could be the other equation?
Molodets [167]

Hi there!

\large\boxed{y = 2x + 6}

For a system to have infinite solutions, the lines have to be the same. We can begin by rearranging the given equation into the format y = mx + b:

2y - 4x = 6

Move x to the opposite side:

2y = 4x + 6

Divide all terms by 2:

y = 2x + 6

The answer choice that matches this is the first one.

5 0
3 years ago
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