Find m if the line y=mx−2 intersects y=x^2 in just one point. (WILL GIVE BRANLIEST)

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

8 0

Answer:

anything over ten

Step-by-step explanation:

Try to get a line that is completely vertical.

10 will work, as well as many other numbers, unless i misunderstood the question

MrMuchimi3 years ago

5 0

Answer:

m = 2root2 or -2root2

Step-by-step explanation:

See the attached graph. We know that it can't be greater than 3, otherwise there are two solutions, and it can't be less than 2, otherwise there are no solutions. The only thing that works is either 2root2 or -2root2. (Root stands for square root.)

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Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) Without doing an

stepladder [879]

Answer:

Step-by-step explanation:

Given are 3 data sets with values as:

(i) 8 9 10 11 12 ... Mean =10

(ii) 7 9 10 11 13 ... Mean =10

(iii) 7 8 10 12 13 ... Mean =10

We see that data set shows mean deviations as

(i) -2 -1 0 1 2

(ii) -3 -1 0 1 3

(iii) -3 -2 0 2 3

Since variance is the square of std deviation, we find that std deviation is larger when variance is larger.

Variance is the sum of squares of (x-mean). Whenever x-mean increases variance increases and also std deviation.

Hence we find that without calculations also (i) has least std dev followed by (ii) and then (iii)

(i) (ii) (iii) is the order.

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Musya8 [376]

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