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inn [45]
3 years ago
15

4/5(2x+5)−4=1 what is the value of x? A. 5/8 B.1 1/4 C.1 3/5 D. 3 1/5

Mathematics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer:

B.1 1/4

Step-by-step explanation:

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Given the exponential growth function f ( x ) = 75 ( 1.02 ) x f ( x ) = 75 ( 1.02 ) x What is the initial value of the function?
Anni [7]

Answer:

Step-by-step explanation:

The initial vale is when x = 0

-  That is 75,

The growth factor is 2%.

4 0
1 year ago
AB = BC, BC = CD, so AB = CD. Which property allows us to make this conclusion?
a_sh-v [17]

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Step-by-step explanation:

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3 years ago
A 95% confidence interval for a population proportion was constructed using a sample proportion from a random sample. Which of t
liraira [26]

Answer:

All but last statement are correct.

Step-by-step explanation:

  • <em>If we were to use a 90% confidence level, the confidence interval from the same data would produce an interval wider than the 95% confidence interval.</em>

True. Confidence interval gets wider as the confidence level decreases.  

  • <em>The sample proportion must lie in the 95% confidence interval. </em>

True. Confidence interval is constructed around sample mean.

  • <em>There is a 95% chance that the 95% confidence interval actually contains the population proportion.</em>

True. Constructing 95%. confidence interval for a population proportion using a sample proportion from a random sample means the same as the above statement.

  • <em>We don't know if the 95% confidence interval actually does or doesn't contain the population proportion</em>

True. There is 95% chance that confidence interval contains population proportion and 5% chance that it does not.

  • <em>The population proportion must lie in the 95% confidence interval</em>

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5 0
3 years ago
How do I solve this equation -3.9÷1.3
yaroslaw [1]

- 3.9 / 1.3 = - 3/1 = - 3



Calculation Steps:


Conversion:


3.9 = 39/10



Unary Minus:


- 3.9 = - 39/10



Conversion:


1.3 = 13/10




Divide:


- 39/10 : 1.3


= - 39/10 * 10/13


= - 39 * 10/ 10 * 13



= - 390/130



= - 3





Answer: - 3





Hope that helps!!!! Answer: - 3



8 0
3 years ago
John runs the 400 meter dash in 50.1 seconds, what is his average speed in meters per second?
STatiana [176]

Answer:7.98403194 m / s

and i dont know how to work it out because I did it in my head

Step-by-step explanation:

3 0
2 years ago
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