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3 years ago

Which of the following is true about the graph of f(x)=7^x

Mathematics

1 answer:

mote1985 [20]3 years ago

7 0

In the negatives the y starts at 0 but when x goes to zero, the y reaches to 1 and then increase exponentially by 7

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magazine provided results from a poll of adults who were asked to identify their favorite pie. Among the respondents, % chose

Alex73 [517]

Complete Question

A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 respondents, 12 % chose chocolate pie, and the margin of error was given as plus or minus 5 percentage points.What values do $\r p , \ \r q$ , n, E, and p represent? If the confidence level is 90%, what is the value of $\alpha$ ?

Answer:

$\r p$ is the sample proportion $\r p = 0.12$

$n$ is the sample size is $n = 500$

$E$ is the margin of error is $E = 0.05$

$\r q$ represents the proportion of those that did not chose chocolate pie i.e $\r q = 1- \r p$

$\alpha = 10\%$

Step-by-step explanation:

Here

$\r p$ is the sample proportion $\r p = 0.12$

$n$ is the sample size is $n = 500$

$\r q$ represents the proportion of those that did not chose chocolate pie i.e

$\r q = 1- \r p$

$\r q = 1- 0.12$

$\r q = 0.88$

$E$ is the margin of error is $E = 0.05$

Generally $\alpha$ is the level of significance and it value is mathematically evaluated as

$\alpha = ( 100 - C )\%$

Where $C$ is the confidence level which is given in this question as $C = 90 \%$

$\alpha = ( 100 - 90 )\%$

$\alpha = 10\%$

5 0

3 years ago

Mike had thirty seven dollars to spend on eight books. After buying them

lubasha [3.4K]

Answer:4.265

Step-by-step explanation:

Can it be decimal?

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3 years ago

benny has a total of 64 quarters and pennies in his pocket. these coins total $4.00 how many pennies are in Benny's pocket

levacccp [35]

I think its 14 quarters and 50 pennies

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3 years ago

I need help with this one please..

KiRa [710]

I think it's 60 I'm NOT sure. I just multiplied those three numbers

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3 years ago

What is the measure of ∠RST ?

Marysya12 [62]

Remember that all the interior angles of a triangle add up to 180°.

The picture tells us two of the angles, $\angle R$ which is 40° and $\angle T$ which is also 40°.

Subtract the measurement of these two angles from 180° to find the measure of the third angle, $\angle RST$ :
180° - 40° - 40° = 100°.

The measure of angle RST is 100°.

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Answer: 100°

3 0

3 years ago

Read 2 more answers