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Vanyuwa [196]
2 years ago
13

Pls help :) determine which function has a greater rate and explain how you know.

Mathematics
1 answer:
Nesterboy [21]2 years ago
4 0

Using exponential function concepts, it is found that the second function has a greater rate, as 0.8 > 0.2.

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value, that is, y when x = 0.
  • b is the rate of change, as a decimal.

Function 1 is given by:

y = 2(0.2)^x

Hence the rate is b = 0.2.

Considering the values on the table, function 2 is given by:

y = (0.8)^x

Hence the rate is b = 0.8.

Hence, the second function has a greater rate, as 0.8 > 0.2.

More can be learned about exponential function concepts at brainly.com/question/14398287

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Can somebody please help me with this question?
USPshnik [31]

Answer: 6x^2

Step-by-step explanation:

The area of a triangle is 1/2bh

Thus, simply multiply 2x*3x = 6x^2

Hope it helps <3

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3 years ago
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zmey [24]

Answer:

t=\frac{7.03-3.58}{\frac{9.42}{\sqrt{20}}}=1.638    

p_v =P(t_{(19)}>1.638)=0.0589    

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can conclude that the true mean is not significantly higher than 3.58 at 5% of signficance.    

Step-by-step explanation:

Data given and notation    

\bar X=7.03 represent the sample mean

s=9.42 represent the sample standard deviation    

n=20 sample size    

\mu_o =3.58 represent the value that we want to test  

\alpha=0.01 represent the significance level for the hypothesis test.    

z would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

State the null and alternative hypotheses.    

We need to conduct a hypothesis in order to check if the mean is higher than 3.58 :    

Null hypothesis:\mu \leq 3.58    

Alternative hypothesis:\mu > 3.58    

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:    

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".    

Calculate the statistic    

We can replace in formula (1) the info given like this:    

t=\frac{7.03-3.58}{\frac{9.42}{\sqrt{20}}}=1.638    

P-value    

First we need to calculate the degrees of freedom given by:

df=n-1=20-1=19

Since is a right tailed test the p value would be:    

p_v =P(t_{(19)}>1.638)=0.0589    

Conclusion    

If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can conclude that the true mean is not significantly higher than 3.58 at 5% of signficance.    

7 0
3 years ago
If i= V-1, then which expression is equal to 9i(13i)?<br>F -117<br>H 117<br>G 117i<br>I -117i​
DaniilM [7]

If i= V-1, then -117 expression is equal to 9i(13i)

Step-by-step explanation:

Original problem : 9i(13i)

=> 117i^{2} (Multiply)

=> 117 * -1

=> i^{2} = -1

=> -117

If i= V-1, then -117 expression is equal to 9i(13i)

3 0
3 years ago
How do I solve this question I don’t know how to do it at all
ICE Princess25 [194]

Answer:

x = 5.2

Step-by-step explanation:

See the diagram first.

We know that in a triangle if we draw a line parallel to the baseline then it will divide the other two lines of the triangle in the same ratio.

Therefore, from the given figure it is clear that \frac{x}{13-x} = \frac{2}{3}

⇒ 3x = 26 - 2x

⇒ 5x = 26

⇒ x = 5.2 (Answer)

4 0
2 years ago
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Alenkinab [10]
17.99 with 20% off 17.99*(1-20%)=14.392
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Have to bye 3 shirts to make it more than $40.
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Need to by 3 shirts to use the coupon. The purchase is $35.66.
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3 years ago
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