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Naddik [55]
2 years ago
9

A data set is normally distributed with a mean of 27 and a standard deviation of 3.5. Find the z-score for a value of 25, to the

nearest hundredth.
Mathematics
1 answer:
e-lub [12.9K]2 years ago
7 0

Answer:

z score = .2843

Step-by-step explanation:

25 is 2 below 27

   this is  2/3.5 = .5714  S.D. below mean

      z-score  . 2843

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Determine whether F(x)=4x^2-16x+6 has a maximum or a minimum value and find that value
Reil [10]

Answer:

f(x) has a minimum value of -10.

Step-by-step explanation:

It will have a minimum value because the coefficient of x^2 is positive.

To find its value we convert to vertex form:

f(x) = 4x^2 - 16x + 6

     = 4(x^2 - 4x) + 6

      = 4[(x - 2)^2 - 4] + 6

      = 4(x - 2)^2 - 16 + 6

      = 4(x - 2)^2 - 10.

So the minimum value is -10.

5 0
2 years ago
A pair of vertical angles has measures (3x+4)° and (7x-9)°<br> What is the value of x?
Andrei [34K]
Since they are vertical they are equal to each other.

3x + 4 = 7x - 9
4 = 4x - 9
13 = 4x 
3.25 = x

So the value of x is 3.25.

Hope this helps :)
5 0
2 years ago
First right equals brainliest, Pls dont answer for the points this is serious. I just need this and 3 more which I will ask late
Alex

I can't see the picture, can you please explain the problem in the comment bar below this so can edit my answer to help?

7 0
2 years ago
Read 2 more answers
W + 13.2 = 10.4 is what?
NNADVOKAT [17]
The answer would be-2.8
4 0
2 years ago
5)<br> 4 mm<br> 2 mm<br> 5 mm<br> 3 mm<br> Perimeter:<br> Area:
eduard

Answer:

perimeter - 4+2+3+2+5= 16mm

Area -5×4=20mm²

6 0
3 years ago
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