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ella [17]
3 years ago
7

What number must be added to the expression below to complete the square ? x2-7x

Mathematics
2 answers:
Ronch [10]3 years ago
4 0

Answer:49/4

Step-by-step explanation:

Sever21 [200]3 years ago
4 0

Answer: 49/4

Step-by-step explanation: Formula to find square is (b/2)^2

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As the Type II error, β,of a statistical test increases, the power of the test _____________.
shutvik [7]

Answer:

decreases.

Step-by-step explanation:

Type II error is one in which we fail to reject the null hypothesis that is actually false. Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. The power of Type II error is 1 - \beta. As the power increases the probability of Type II error decreases.

6 0
3 years ago
Perform indicated operations for function: f(x)=x^2+1 use in f(x+h)-f(x)/h
8090 [49]

For f(x+h) - \dfrac{f(x)}{h} reading the fraction like f(x)/h only (f(x+h) start fraction f(x) / h end fraction), the answer is -x^2/y + x^2 + 2x + y + y^2 - 1/y + 1

5 0
3 years ago
Evaluate f(x) =1/3x for x = 4.
slava [35]

Answer: 1 1/3 or 4/3

Step-by-step explanation: f(4) =1/3(4) = 4/3  = 1 1/3

7 0
3 years ago
Read 2 more answers
Hey Guys! I've forgot way to do. Can you help me, please?
expeople1 [14]
10 800 0 to the first problem
4 0
3 years ago
Which inequality is equivalent to x-6/x+5≥x+7/x+3?
yawa3891 [41]
To find equivalent inequalities you have to work the inequality given.

The first step is transpose on of sides to have an expression in one side and zero in the other side:

  x - 6        x + 7
--------- ≥  --------
  x + 5       x + 3

=>

  x - 6          x + 7
--------- -  --------   ≥ 0
  x + 5       x + 3

=>

 (x - 6) (x + 3) - (x + 7) (x + 5)
--------------------------------------- ≥ 0
          (x + 5) (x + 3)

=>

 x^2 - 3x - 18 - x^2 - 12x - 35
--------------------------------------- ≥ 0
         (x + 5) (x + 3)

           15x + 53
-     -------------------   ≥ 0
       (x + 5) (x + 3)

That is an equivalent inequality. Sure you can arrange it to find many other equivalent inequalities. That is why you should include the list of choices. Anyway from this point it should be pretty straigth to arrange the terms until making the equivalent as per the options.
4 0
3 years ago
Read 2 more answers
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