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Solve system equation

1/2m+3/4n=13 5/6m-2/9n=4

Answers

Answer 1
Answer:

Answer:

.

21

Step-by-step explanation:

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Determine which of the sets of vectors is linearly independent. A: The set where p 1(t) = 1, p 2(t) = t 2, p 3(t) = 1 + 5t B: The set where p 1(t) = t, p 2(t) = t 2, p 3(t) = 2t + 5t 2 C: The set where p 1(t) = 1, p 2(t) = t 2, p 3(t) = 1 + 5t + t 2 A and C C only B only A only all of them

Answers

Answer:

(A)A and C

Step-by-step explanation:

In each case, represent each of the p_i as a column vector where  each row corresponds to the constant term, coefficient of t and t^2 respectively.

A= The set where p_1(t)=1p_2(t)=t^2p_3(t)=1+5t

A=\left[\begin{array}{ccc}1&0&1\n0&0&5\n0&1&0\end{array}\right]

|A|=\left|\begin{array}{ccc}1&0&1\n0&0&5\n0&1&0\end{array}\right|=-5

B: The set where p_1(t)=t, p_2(t)=t^2, p_3(t)=2t+5t^2

B=\left[\begin{array}{ccc}0&0&0\n1&0&2\n0&1&5\end{array}\right]\n|B|=0

C: The set where p_1(t)=1, p_2(t)=t^2, p_3(t)=1+5t+t^2

C=\left[\begin{array}{ccc}1&0&1\n0&0&5\n0&1&1\end{array}\right]\n|C|=-5

Since the determinants of A and C are not 0, the set of vectors in A and C are linearly independent.



Please Help

Greatly appreciated!!​

Answers

Answer:

D

Step-by-step explanation:

(x_(1), y_(1)) \ = (-2, 1)  ;  m = 4/5

y - y1 = m(x - x1)

y - 1 = (4)/(5)(x- [-2])\n\ny - 1 =(4)/(5)(x + 2 )

Boris buys candy that costs $7 per pound. He will spend at least $63 on candy. What are the possible numbers of pounds he will buy?

Answers

Answer:

Anything above 9

Step-by-step explanation:

63/7=9

Can you Explain how to do this plz

Answers

it is -18 because -18 divided by 6 is -3. then -5+-3 is -8

For a particular event, 845 tickets were sold for a total of $4162. If students paid $4 per ticket and non students paid $6 per ticket, how many student tickets were sold?

Answers

For a particular event, 812 tickets were sold for a total of $1912. If students paid $2 per ticket and nonstudents paid $3 per ticket

How do I solve this?

Answers

Answer:

Step-by-step explanation:

Just so that we have something to work with, the length of the longest day (June 22) in Acron Ohio is 15 hours 8 minutes and 9 seconds on the 20th of June of this year. The number we get won't be this accurate, but it will tell us if we have done it correctly. The tricky part is when to use the radians.

cos(0.1309 H) = -0.4336 tan (40o 46 minutes)  I have assumed this is in radians. It won't work any other way. The measurement cannot be in degrees which will give a negative tan from the minus sign out in front. The cos being minus will make things even worse.

cos(0.1309 H) = -0.4336 tan (40 46/60  )

cos(0.1309 H) = -0.4336 tan (40.766666667)

cos(0.1309 H) = -0.4336 * -0.074173405

cos(0.1309 H) = 0.032161588

0.1309 H = cos-1(0.032161588)

0.1309 H =  1.538629191

H = 1.538629191 / 0.1309

H = 11.754 which is no where near 15 hours, but it is what the numbers give.

I would suggest that you go to your instructor for the other two. Work this one out until you get somewhere near 11.7 hours.

The other two cities should come to something near  this answer.  

Answer:

Step-by-step explanation:

Slope= -3/1

plot from point  (-2,4)
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