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Anit [1.1K]
3 years ago
15

If A=5,6,7,8,9 and B=prime numbers what is A n B?

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0
A n B are all prime numbers in the set A.
So, the answer is:
A n B = 5,7
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Which ordered pair is the best estimate of the solution of the system 3x+y=4 x-3y=4?
vovangra [49]
3x+y=4\ \ \ \ \ \ ..............equation(1)\\x-3y=4\ \ \ \ \ \ ..............equation(2)\\\\ Using~equation~(2), \\\\
x-3y=4\\x=4+3y\\\\Now,\ using\ the\ value\ of\ x\ in\ equation\ (1),\ we\ get,\\\\(4+3y)-3y=4\\\\4=4

Since all the variables cancel out and the coefficient equal to eachother, this system of equation has <u>infinitely many solutions!</u>
6 0
3 years ago
Lucy borrowed $425 from Colleen. Colleen charges Lucy 5.3% interest if Lucy pays Colleen back in 3 years how much does she pay C
Sonja [21]

Answer: Lucy pays $ 492.58  back altogether.

Step-by-step explanation:

Formula : Interest = Principal x Rate x Time

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Interest = 425 x 0.053 x 3 ≈ $ 67.58

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7 0
3 years ago
The slope of a line that passes through points (-1, -3) and (-2,5) is:
sweet [91]

Answer:

m = -8

Step-by-step explanation:

Use the slope formula: m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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m = -8

6 0
3 years ago
What is an equation of the line in slope intercept form? M=2/3 and y intercept is (0,-3)
lana66690 [7]

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y= (2/3)x -3

Step-by-step explanation:

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6 0
3 years ago
Given that P = (-5, 5) and Q = (-13, 10), find the component form and magnitude of 2 vector PQ.
Brut [27]
Define unit vectors along the x-axis and the y-axis as \hat{i} , \, \hat{j} respectively.

Then the vector from P to Q is
\vec{PQ} = (-13+5)\hat{i} + (10-5)\hat{j} = -8\hat{i} + 5\hat{j}
In component form, the vector PQ is (-8,5).

The magnitude of vector PQ is
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Answer:
The vector PQ is (-8, 5) and its magnitude is √89  (or 9.434).
4 0
4 years ago
Read 2 more answers
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