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2 years ago

Step 3: Displaying numerical data in dot plots, and describing and analyzing the data.

1 answer:

3 0

Answer:The mode if 5, because 5 occurs 8 times, which is more than any other numbers occurring more than once. The median is 6, and this is because when you line up the numbers in order and cross them off to find the middle number, it is 6. I rounded to the mean to about 6.4. I got this by adding all of the numbers up, or by doing 12 + 40 +18 +7, etc, and got the total of 165. Because there is a total of 26 data points, I divided those numbers and got 6.3461, which ends up rounding to 6.4.

Step-by-step explanation:

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1/2x+5=10 what is the number of the variable

ki77a [65]

I think what your asking for is that x=10

7 0

2 years ago

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Given that f(x) = x + 3<br> a) Find f(2)

Nataly_w [17]

${ \qquad\qquad\huge\underline{{\sf Answer}}}$

Here we go ~

In the above question, it is given that :

$\qquad \sf \boxed{ \sf f(x) = \frac{x + 3}{2} }$

A.) Find f(2) :

$\qquad \sf \dashrightarrow \: f(2) = \dfrac{2 + 3}{2}$

$\qquad \sf \dashrightarrow \: f(2) = \dfrac{5}{2}$

$\qquad \sf \dashrightarrow \: f(2) = 0.5$

B.) Find ${ \sf {f}^{-1}(x) }$ :

$\qquad \sf \dashrightarrow \: let \: y = f (x)$

so, we can write it as :

$\qquad \sf \dashrightarrow \: y = \dfrac{x + 3}{2}$

$\qquad \sf \dashrightarrow \: 2y = x + 3$

$\qquad \sf \dashrightarrow \: x = 2y - 3$

Now, put x = ${ \sf {f}^{-1}(x) }$ , and y = x and we will get our required inverse function ~

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(x) = 2x- 3$

C.) Find ${ \sf {f}^{-1}(12) }$ :

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 2(12)- 3$

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 36- 3$

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 33$

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9 months ago

Use the formula B = p(1.08)n to find the balance B (in dollars and cents) for a principal p invested at a compound interest rate

aalyn [17]

Answer:

Option D. $\$73.47$

Step-by-step explanation:

In this problem

we have

$B=P(1+r)^{t}$

where

B is the Final Investment Value or a Balance

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

in this problem we have

$t=5\ years\\ P=\$50\\ r=0.08$

substitute in the formula above

$B=\$50(1+0.08)^{5}=\$73.47$

8 0

3 years ago

The stem-and-leaf plot lists the number of signatures collected by different volunteers. How many volunteers collected fewer tha

myrzilka [38]

6 people collected fewwer than 30 signautures

4 0

3 years ago

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Someone give me the answer to this problem please ☺️☺️

Softa [21]

SA = 2 * pi * r^2 + 2 * pi * r * h
r = 1
h = 4
pi = 3.14
now sub
SA = 2(3.14)(1^2) + 2(3.14)(1)(4)
SA = 6.28(1) + 6.28(4)
SA = 6.28 + 25.12
SA = 31.4 sq ft

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3 years ago