All categories

3 years ago

If z=15, what would the expression z2 – 2z + 15 be equal to?

Mathematics

2 answers:

svet-max [94.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

z2 - 2z + 15

(15)2 - 2(15) + 15

30 - 30 + 15

0 + 15

kupik [55]3 years ago

4 0

Hey there!

z^2 - 2z + 15

= 15^2 - 2(15) + 15

= 225 - 30 + 15

= 195 + 15

= 210

Therefore, your answer is: 210

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

You might be interested in

Which of the following options have the same value as 25% of 64?

Lady bird [3.3K]

Answer : option b, and option c

Explanation: 25% of 64 is 16
And both options are equal to 16

4 0

3 years ago

How do I find lateral area

geniusboy [140]

Find the perimeter of the base and multiply it by the height.

8 0

3 years ago

What does b(c) means

Debora [2.8K]

Before the common era

4 0

4 years ago

Read 2 more answers

Find the x and y-intercepts of the line whose equation is 3x+ 5y=-15

xenn [34]

X - Intercept: 3x + 5y = -15
      3x + 5(0) = -15
          3x + 0 = -15
      3x = -15
   3    3
      x = -5
      (x, y) = (-5, 0)

Y - Intercept:    3x + 5y = -15
       3(0) + 5y = -15
   0 + 5y = -15
   5y = -15
      5    5
   y = -3
       (x, y) = (0, -3)

6 0

3 years ago

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.

Artist 52 [7]

Answer: 0.0250

Step-by-step explanation:

Given : A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.0 minutes.

We know that the uniform distribution is also known as rectangular distribution.

Density function for uniform distribution : $f(x)=\dfrac{1}{b-a}$

$=\dfrac{1}{60-50}=\dfrac{1}{10}$

Now, the probability that a given class period runs between 51.25 and 51.5 minutes :-

$\int^{51.5}_{51.25}f(x)\ d(x)\\\\ \int^{51.5}_{51.25}\dfrac{1}{10}\ dx\\\\=\dfrac{1}{10} [x]^{51.5}_{51.25}\\\\=\dfrac{1}{10}(51.5-51.25)=0.0250$

Hence, the probability that a given class period runs between 51.25 and 51.5 minutes = 0.0250

3 0

3 years ago