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Vika [28.1K]
3 years ago
12

ava picks a number greater than 3 tens 6 ones. the number is less than 52. it has more than 6 ones. what could the. number be?

Mathematics
1 answer:
Svetlanka [38]3 years ago
6 0
Any where between 37 and 51
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1/27^-x=81^2x+2 find x​
Umnica [9.8K]

Answer:

Step-by-step explanation:

81

=

3

4

and

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, so this equation can also be written as

3

4

x

=

3

3

(

x

+

2

)

=

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3

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Since the bases are now the same, we can equate exponents to get

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6

(technically this equating of exponents requires the fact that exponential functions (with base not equal to 1) are one-to-one functions).

(do u understand?)

7 0
3 years ago
Consider a total of 1,000 people. If it was said that within 1 deviation (of the mean) of all people like MATH 123, how many of
Lesechka [4]

Answer:

680 students

Step-by-step explanation:

The 68 - 95 - 99.7  rule (empirical rule) states that 68% of the population lies within one standard deviation of the mean,  95% of the population lies within two standard deviations and 95% of the population lies within three standard deviations.

Hence since it was said that within 1 deviation (of the mean) of all people like MATH 123, therefore the number of people that like MATH 123 is:

number of people that like MATH 123 = 68% of the population

number of people that like MATH 123 = 0.68 * 1000

number of people that like MATH 123 = 680 students

3 0
2 years ago
You want to have $25,000 for a down payment on a house 6 years from now. if you can earn 6.5 percent, compounded annually, on yo
STatiana [176]
Use compound interest formula:
Future value, F 
25000=P(1+i)^n
where
P=present value to be found
i=annual interest rate = 0.065
n=number of years = 6
so
25000=P(1.065)^6
=>
P=(25000/1.065^6)=$17133.353
6 0
3 years ago
Ruth decides to test the method of proportions and similar
olga nikolaevna [1]

Answer:

B.

Step-by-step explanation:

7 0
2 years ago
Assume all the variables are nonnegative.
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Use photo math it’s a great tool
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2 years ago
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