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Rom4ik [11]
3 years ago
15

Clear selection11. The mean of 2,5, (x+1),(x+2), 7 and 9 1 pointis 6. Find the median.​

Mathematics
1 answer:
nadezda [96]3 years ago
4 0

Answer:

median= 6.5

Step-by-step explanation:

6= 2+5+x+1+x+2+7+9/6

summing up the values

26+2x=36

collecting like terms,

2x=10

divide both sides by 2

x= 5

5+1=6

5+2=7

so the numbers are 2 5 6 7 7 and 9

the median = 6+7/2

= 6.5

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Tell whether each function is linear or non-linear.
MrMuchimi

Answer:

Function A is non-linear and Function B is linear.

Step-by-step explanation:

Linear function:

Has the following format:

y = mx + b

In which m is the slope and b is the y-intercept.

In a linear function, when x changes by 1, y will always changes by the same amount.

Function A:

When x changes by 1, y can change by various amounts. So function A is non-linear.

Function B:

y = -x + 5

In the format of a linear function, so linear

3 0
3 years ago
Please help how do I get this answer ?
miss Akunina [59]
Multiply $20 by 20% good luck
8 0
3 years ago
Read 2 more answers
Growth or decay: 1/2(10)^x
suter [353]

Answer:

Growth

Step-by-step explanation:

If the base (the number in the parentheses) is less then 1 then it is a decay, and if it's larger than 1 it is a growth.

4 0
3 years ago
45.50 is 30% of what number
m_a_m_a [10]

Answer:

31.85

Step-by-step explanation:

to subtract 30 percent from 45.50 just divide the percentage (30) by 100 subtract this value form 1 then multiply it by the initial value (45.50) so

final value = 45.50 x ( 1 - \frac{30}{100} )

final value = 45.50 x ( 1 - 0.3)

final value = 45.50 x (0.7)

final value = 31.85  

subtract 30% is the same as discount 30% this operation could be for example a 30% discount on 45.50

note: 0.3 can be found just by moving the decimal point 2 places to the left \frac{30}{100} = 0.3 as a decimal

3 0
2 years ago
A hardware store rents vacuum cleaners that customers may use for part or all of a day, up to 12 hours, before returning. The st
jek_recluse [69]

The flat fee that the store charges is $14 and the cost for 7 hours is $56

A linear equation is on the form:

y = mx + b

where y, x are variables, m is the rate of change and b is the initial value of y.

let f for the total rental cost of a vacuum cleaner for x hours

Using the points (1, 20) and (3, 32) from the table:

f-f_1=\frac{f_2-f_1}{x_2-x_1} (x-x_1)\\\\f-20=\frac{32-20}{3-1} (x-1)\\\\f(x)=6x+14

The flat fee that the store charges is $14

The reasonable domain is 1 ≤ x ≤ 12

The cost for 7 hours is:

f(7) = 6(7) + 14 = 46

Find out more on linear equation at: brainly.com/question/14323743

4 0
2 years ago
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