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WINSTONCH [101]
3 years ago
15

Which coefficient matrix represents a system of linear equations that has a unique solution?

Mathematics
2 answers:
Westkost [7]3 years ago
7 0
<span>the system has a unique solution if and only if the determinant of the coefficient matrix does not equal zero. </span>
Aloiza [94]3 years ago
7 0
It only works when the coefficient it's not 0
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Make b the subject of the formula a = Vb + 6​
zhuklara [117]

Answer:

b = (a - 6)/V

Step-by-step explanation:

a = Vb + 6​

Subtract 6 from both sides:

a - 6 = Vb

b = (a - 6)/V

3 0
2 years ago
Use order of operations to solve: 4(12*6-4^2)+9
Dominik [7]

Answer: =233

Step-by-step explanation: 4((12)(6)−4^2)+9

Hope this help

8 0
3 years ago
A weather station in a major city in the Northwest kept data about the weather conditions over the past year. The probabilities
Black_prince [1.1K]
It is important to note that all the information's required are already given in the question

Probability that a day will be hot = 0.15 + 0.10
                                                   = 0.25
Probability that a day will be sunny = 0.15 + 0.30 + 0.10
                                                        = 0.55
Adding the above two probabilities, we get = 0.25 + 0.55
                                                                     = 0.80
Now
Probability that a day will be both hot and sunny = 0.15
So
Probability that a day was hot or sunny = 0.80 - 0.15
                                                               = 0.65
I hope the procedure is clear enough for you to understand.
3 0
3 years ago
Read 2 more answers
I am completely lost.
Lesechka [4]
The surface area of a solid is just the total area of all its faces. We know a cube has 6 identical faces with area s^2 where s is the side length.

So 6s^2 is the surface area. We can use this to find s.

6s^2 = 600

s^2 = 100

s = 10 cm










6 0
3 years ago
The point slope equation for this slope is 2
maw [93]
The point slope form is
y-y1=m(x-x1)
where
m=slope
and you are given a point (x1,y1)

we are iven that slope=2
and a poin is (3,10)
3=x1
10=y1
y-10=2(x-3)

the answer is
y-10=2(x-3)

4 0
3 years ago
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