1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
podryga [215]
3 years ago
10

What number is equal to 16?

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
4 0

Answer:

32/2 is also equal to 16

Step-by-step explanation:

You might be interested in
normally distributed with mean 24.6 seconds and standard deviation 0.64 seconds;the lower finishing time, the better. If the qua
marshall27 [118]

Answer:

z=1.04

And if we solve for a we got

a=24.6 +1.04*0.64=25.27

So the value of height that separates the bottom 85% of data from the top 15% is 25.27.  

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the finishing time of a population, and for this case we know the distribution for X is given by:

X \sim N(24.6,0.64)  

Where \mu=24.6 and \sigma=0.64

Solution to the problem

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.15   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.85 of the area on the left and 0.15 of the area on the right it's z=1.04. On this case P(Z<1.04)=0.85 and P(z>1.04)=0.15

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=1.04

And if we solve for a we got

a=24.6 +1.04*0.64=25.27

So the value of height that separates the bottom 85% of data from the top 15% is 25.27.  

3 0
3 years ago
What is the area of this quadrilateral?<br> 2 ft<br> 3 ft<br> 8 ft 8 ft<br> 3 ft<br> 2 ft
Alekssandra [29.7K]

Check the picture below.

3 0
2 years ago
What is the simplified expression for –3cd – d(2c – 4) – 4d?
kompoz [17]
<span>–3cd – d(2c – 4) – 4d
= </span><span>–3cd – 2cd + 4d – 4d
= -5cd

answer
</span><span>A:–5cd </span>
3 0
3 years ago
Rewrite the expression 4+<img src="https://tex.z-dn.net/?f=%5Csqrt%7B16-%284%29%285%29%7D" id="TexFormula1" title="\sqrt{16-(4)(
Inessa05 [86]

Answer:

2+i

Step-by-step explanation:

Given the expression:

\dfrac{4+\sqrt{16-(4)(5)}}{2}

To find:

The expression of above complex number in standard form a+bi.

Solution:

First of all, learn the concept of i (pronounced as <em>iota</em>) which is used to represent the complex numbers. Especially the imaginary part of the complex number is represented by i.

Value of i =\sqrt{-1}.

Now, let us consider the given expression:

\dfrac{4+\sqrt{16-(4)(5)}}{2}\\\Rightarrow \dfrac{4+\sqrt{16-(4\times 5)}}{2}\\\Rightarrow \dfrac{4+\sqrt{16-20}}{2}\\\Rightarrow \dfrac{4+\sqrt{-4}}{2}\\\Rightarrow \dfrac{4+\sqrt{(-1)(4)}}{2}\\\Rightarrow \dfrac{4+\sqrt{(-1)}\sqrt4}{2}\\\Rightarrow \dfrac{4+\sqrt4i}{2} \ \ \ \ \ (\because \sqrt{-1} =i) \\\Rightarrow \dfrac{4+2i}{2}\\\Rightarrow 2+i

So, the given expression in standard form is 2+i.

Let us compare with standard form a+bi so we get a =2, b =1.

\therefore The standard form of

\dfrac{4+\sqrt{16-(4)(5)}}{2}

is: \bold{2+i}

8 0
3 years ago
The angle bisector of
klemol [59]
A is correct. Hope my answer helped u :)
6 0
3 years ago
Other questions:
  • A merry-go-round has a radius of 18 feet. If a passenger gets on a
    7·1 answer
  • I need to know the answer for 19,20,21
    10·1 answer
  • Which expression is equivalent to the given expression?<br>(12g^2h^7)(3g^-2h^-4)<br>​
    14·1 answer
  • Run a multiple regression where the dependent variable is ratings and the independent variables are star and fact. Use data from
    15·1 answer
  • Question 1(Multiple Choice Worth 1 points)
    6·2 answers
  • The ratio of the numerator to the denominator of a certain fraction is three to five. If two is added to the numerator and
    6·1 answer
  • Triangle ABC was translated to form A’B’C’.
    10·2 answers
  • Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to buy
    7·1 answer
  • Two supplementary angles are in a ration of 3 7 find the measure of each angle
    9·2 answers
  • What is true about discrete and continuous random variables?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!