Videos:1,3 price:5,15 proportional or not proportional?

how many 5 letter combinations can be created from the letters in the world “friendly” assume that the order of the letters does

Artyom0805 [142]

Answer:

Number of combinations = 56

Step-by-step explanation:

Points to remember

nCₐ = n!/(r!(n - r)!)

The given word is "FRIENDLY"

F R I E N D L Y is a 8 letter word.

<u>To find the number of combinations</u>

5 letters can be selected from 8 letter = 8C₅

8C₅ = 8!/(8 - 5)!5!

= 8!/3!5!

= (8 * 7 * 6* 5!)/(1 * 2 * 3 * 5!)

= 8 * 7

= 56

5 letter combinations can be created from the letters in the world “friendly = 56

4 0

3 years ago

What is f(-3) for the function f(a). =-2ax2-5a+4

Nataly_w [17]

The value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

<h3>What is a function?</h3>

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

For example y = sinx , y = x + 3 ets.

Given,

f(x) = - 2ax² -5a + 4

x = -3

f(-3) = - 2a(-3)² -5a + 4

f(-3) = -18a - 5a + 4

f(-3) = 23a + 2

Hence the value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

For more about the function

brainly.com/question/23712366

#SPJ1

7 0

2 years ago

Read 2 more answers

The frequency table shows the results asking people how many hours they spend online per week

igomit [66]

The histogram is attached with the answer.

<h3>What is a Histogram ?</h3>

It is a mathematical representation of data in a bar shaped graph , the range is user defined.

The histogram is drawn and the shape of the histogram is left skewed as the peak of the graph lies to the left of the centre.

The histogram is attached with the answer.

The complete question is

the frequency table shows the results of a survey that asked people how many hours they spend working in the yard per month. display the data in a histogram. describe the shape of the distribution

The data is attached with the answer.

To know more about Histogram

brainly.com/question/16819077

#SPJ1

5 0

2 years ago

Please help me!! algebra 1!!

Aleks04 [339]

Answer:

Step-by-step explanation:

3 0

2 years ago

Indicate the equation of the given line in standard form. The line through (2, -1) and parallel to a line with slope of 3/4

Ket [755]

Well, for a line with a slope of 3/4, any other parallel line to it, will also have the same slope of 3/4

so if the line through (2, -1) is parallel to it, it has a slope of 3/4 as well

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 

\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{4}
\\\\\\
% point-slope intercept
y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=-1\\
x_1=2\\
m=\frac{3}{4}
\end{cases}\\
\textit{and move everything}\\
\textit{to the left-hand-side}
\end{array}\\

\left. \qquad \right. \uparrow\\
\textit{point-slope form}$

7 0

3 years ago