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Ahat [919]
3 years ago
6

Calculate S (sub) 4 for the sequence defined by {a(sub)n}={19-4n}

Mathematics
1 answer:
Fudgin [204]3 years ago
7 0
Yup, you  are correct 
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Solve the equation for x.<br><br> 32(x − 8) = 14x + 3
Mademuasel [1]
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2 years ago
Let r3 have the euclidean inner product. let u = (-1, 1, 1) and v = (-7, 6, 15). if ||ku + v||= 7, what is k? give the exact ans
amm1812
Mak\mathbf u+\mathbf v=k(-1,1,1)+(-7,6,15)=(-k-7,k+6,k+15)

Recall that for a vector \mathbf x\in\mathbb R^n, we have \|\mathbf x\|=\sqrt{\mathbf x\cdot\mathbf x}. So we have

\|k\mathbf u+\mathbf v\|=\sqrt{(k\mathbf u+\mathbf v)(k\mathbf u+\mathbf v)}=7
\implies k^2\mathbf u\cdot\mathbf u+2k\mathbf u\cdot\mathbf v+\mathbf v\cdot\mathbf v=49
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2 years ago
Help I can’t figure it out.
polet [3.4K]
The discount price would be $21.98

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yw, mwah
7 0
2 years ago
What is the slope and y-intercept of the line 2x + 3y = 12
sdas [7]

Answer:

2/3 is the slope and 4 is the 4 intersept

Step-by-step explanation:

7 0
3 years ago
The revenue for a company producing widgets is given by y = -20x2 - 50x + 200, where x is the price in dollars for each widget.
lisov135 [29]

Answer:

The  price is   x =  $2.779

Step-by-step explanation:

From the question we are told that

  The  revenue is  y = - 20x^2  - 50 x + 200

   The cost of production is  y = 30 x - 10

Generally at break even point the cost of production is equal to the  revenue

So

      -20x^2 -50x + 200 =  30x-10

=>   20x^2 +20 -210 = 0

Using the quadratic formula to solve this equation we have that

       x =  $2.779

     

6 0
3 years ago
Read 2 more answers
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