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Rus_ich [418]
4 years ago
15

PLEASE HELP!!! WILL GIVE BRAINLIEST!!

Mathematics
2 answers:
kondor19780726 [428]4 years ago
7 0

Answer:

11 rocks on each shelf x(x+4)-77

Step-by-step explanation:

11*7=77

7 shelves 11 rocks per shelf

taurus [48]4 years ago
3 0
11 rocks on each shelf
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Eloise is investing in a retirement account. She plans on adding an additional $50 at the end of every year and the expected mon
Veronika [31]
Well, because it is two years, 50x2 is 100 so 1000+100=1100

Then, you would do .25x1000 which is 2.5. That would mean you get 2.5 dollars back every month. 

Therefore, your answer is...

C. $1161.76
4 0
4 years ago
A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank?
fredd [130]
There are 12 dimes in there
 and 17 quaters
5 0
3 years ago
Read 2 more answers
Express 29.5 as a rational number
adelina 88 [10]

Answer:

Step-by-step explanation:

29.5 ÷ 5 = 5.9

Therefor its an irrational number

or

29.5 ÷ 100 = 0.295

7 0
3 years ago
An automobile manufacturer wants to assess a new style of visual display to see if it changes the amount of reported eye-strain
finlep [7]

Answer:

Standard error = 0.34

t-statistic = 11.18

Step-by-step explanation:

Given Data:

Mean difference d = 3.8

Standard deviation S.D = 1.36

Number of people = 16

The appropriate test are:

1. Standard error

2. T- statistic

1. Calculating the standard error using the formula;

Standard error = S.D/√n

                         = 1.36/√16

                          = 1.36/4

                           = 0.34

2. Calculating the t-statistic using the formula;

t-statistic = d/(S.D/√n)

              = 3.8/(1.36/√16)

              = 3.8/(1.36/4)

              = 3.8/0.34

               = 11.18

7 0
4 years ago
Solve the absolute value equation |x| − 2 = 5 to find the distance Mary can walk forward, x, in 5 seconds.
Alisiya [41]

Answer:

x = 7 m and x = −7 m

Step-by-step explanation:

Its a modulus problem

concept

|x|  = x when x>=0

|x| = -x when x < 0

____________________________________

Now given

|x| − 2 = 5

adding 2 both sides

|x| − 2  + 2 = 5 + 2

|x|  = 7

now

x = 7  when x >= 0

x = -7 when x<0

Thus, correct answer is x = 7 m and x = −7 m

7 0
4 years ago
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