All categories

4 years ago

PLZ HELP FAST WILL GIVE BRAINLIEST!!!

2 answers:

7 0

Height = {16, 17, 14, 18, 20, 16, 18, 17}
= {14, 16, 16, 17, 17, 18, 18, 20}

Mean height = (14+16+16+17+17+18+18+20)/8 = 136/8 = 17 inches

Median height = (17+17)/2 = 17 inches

Hope it helps!

defon4 years ago

3 0

The answer is going to be 12.9 and the median height will be 16.5 hope that helped

You might be interested in

Determine the scale factor of the function f(x)=1/4x^2

S_A_V [24]

$\bf \stackrel{\textit{parent function}}{f(x)=x^2}\qquad \quad f(x)=\cfrac{1}{4}x^2\impliedby \frac{1}{4},\textit{ 4 times as wide as its parent}$

7 0

3 years ago

(10 POINTS AND BRAINLIEST FOR BEST)

elena-s [515]

Answer:

Oil - Nigeria

Rich Soils - Kenya

Mineral wealth - South Africa

Step-by-step explanation:

Hope this helps.

6 0

3 years ago

Read 2 more answers

Prove that if $w,z$ are complex numbers such that $|w|=|z|=1$ and $wz\ne -1$, then $\frac{w+z}{1+wz}$ is a real number.

mr_godi [17]

Answer:

See proof below

Step-by-step explanation:

Let $r=\frac{w+z}{1+wz}$ . If w=-z, then r=0 and r is real. Suppose that w≠-z, that is, r≠0.

Remember this useful identity: if x is a complex number then $x\bar{x}=|x|^2$ where $\bar{x}$ is the conjugate of x.

Now, using the properties of the conjugate (the conjugate of the sum(product) of two numbers is the sum(product) of the conjugates):

$\frac{r}{\bar{r}}=\frac{w+z}{1+wz} \left(\frac{1+\bar{w}\bar{z}}{\bar{w}+\bar{z}}{\right)$

= $\frac{(w+z)(1+\bar{w}\bar{z})}{(1+wz)(\bar{w}+\bar{z})}=\frac{w+z+w\bar{w}\bar{z}+z\bar{z}\bar{w}}{\bar{w}+\bar{z}+\bar{w}wz+\bar{z}zw}=\frac{w+z+w+|w|^2\bar{z}+|z|^2\bar{w}}{\bar{w}+\bar{z}+|w|^2z+|z|^2w}=\frac{w+z+\bar{z}+\bar{w}}{\bar{w}+\bar{z}+z+w}=1$

Thus $\frac{r}{\bar{r}}=1$ . From this, $r=\bar{r}$ . A complex number is real if and only if it is equal to its conjugate, therefore r is real.

3 0

3 years ago

How many minutes will it take to make and pack an order for 36 parts? Show your work. pls help 25 points

stepan [7]

Answer:

Step-by-step explanation:

Can you post a photo please?

8 0

3 years ago

Solve the system of equations:

PolarNik [594]

Answer:

D.(-1,-5) and (5,7)

Step-by-step explanation:

I used a graphing tool to graph the two equations together. When graphed, the equations intercept (5,7) and (-1,-5). Therefore, they are the solutions to the system.

Option D should be the correct answer.

4 0

4 years ago