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lord [1]
3 years ago
6

Each year, Paul's aunt gives him a birthday gift of $100 in cash. Paul deposits the money into an account that earns simple inte

rest at a rate of 4%. Paul makes no withdrawals. How much interest has his account earned after 7 years?​
Mathematics
1 answer:
sattari [20]3 years ago
4 0

Answer:

100 *4% then divided 7 the number you got

Step-by-step explanation:

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Factor completly x^8- 1/81. please help:)
Leno4ka [110]

Answer:

{x}^{8}  -  \frac{1}{81}  = ( {x}^{4}  +  \frac{1}{9} )(  {x}^{2}  +  \frac{1}{3} )(x +  \frac{1}{ \sqrt{3} } )(x -  \frac{1}{ \sqrt{3} } )

Step-by-step explanation:

see the picture attached for further explanation.

5 0
3 years ago
Read 2 more answers
write a function to model the volume of a rectangular prism if the length is 10cm and the sum of the width and height is 18cm.
Musya8 [376]
Let the length be l, width w and height h, then
Volume = length x width x height
l = 10cm, w + h = 18cm

V(h) = 10(18 - h)h = 180h - h^2
V(h) = 180h - h^2
8 0
3 years ago
Determine the median modles IQR and range for the data<br> 3,8,6,6,4,6,9,9,12
Nataly_w [17]

The median of the data is 6 and the IQR will be 4.

<h3>What are median and IQR?</h3>

The median is the number separating the greater half from the lower half of a sample data in probability theory and statistics. The interquartile range is a measure of statistical dispersion, or the spread of the data, in descriptive statistics.

To calculate the median first arrange the data in the increasing order and then find the mid value.

3,4,6,6,6,8,9,9,12

The middlemost value will be the median.

Median = 6

To calculate the IQR convert the data into lower limits and the upper limits from the median and then calculate the IQR.

3,4,6,6,   |6|     ,8,9,9,12

Lower               Upper

Q1 = (4 + 6)/2 = 5

Q2 = ( 9+9)/2 = 9

IQR = 9 - 5 = 4

Therefore, the median of the data is 6 and the IQR will be 4.

To know more about IQR follow

brainly.com/question/17083142

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7 0
2 years ago
Predict the exam grade for a student who studies 10 hours per week.
user100 [1]

Answer:

100

Step-by-step explanation:

100

7 0
2 years ago
Which equation has a solution of x = 9? A. 5x=45 B. 2x=20 C. 4+x=12 D. x+7=26
sergeinik [125]

Answer:

A. 5x = 45

Step-by-step explanation:

To check, substitute 9 for x in each equation.

A. 5*9 = 45

B. 2*9 ≠ 20

C. 4 + 9 ≠ 12

D. 9 +7 ≠ 26

4 0
3 years ago
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