Write the number that completes the analogy. X^2 is to 121 as x^3 is to ____

HELP ALOT of Points (50 Points) GIVING BRANILIEST

butalik [34]

Answer:

its very easy dude like come on this is like 4rth grade stuff

8 0

2 years ago

Read 2 more answers

Your EZ Pass account begins with $80. It costs you $4/day. Write an equation

vivado [14]

Answer:

The equation is $A(d) = 80 - 4d$

Step-by-step explanation:

Linear function:

A linear function for the amount of money in an account after t days is given by:

$A(d) = A(0) - md$

In which A(0) is the initial value and m is the daily cost.

Your EZ Pass account begins with $80. It costs you $4/day.

This means that $A(0) = 80, m = 4$

So

$A(d) = A(0) - md$

$A(d) = 80 - 4d$

7 0

3 years ago

How do I put 8 and one half into fraction form?

LuckyWell [14K]

Answer:

Step-by-step explanation:

8 + 1/2

How many halves are in 8?

First of all, how many wholes are in 8? 8, obviously, right?

How many halves are in each whole? Two.

How many halves are in 8? 16.

One half is just one half, simple as that.

16 + 1 = 17

So it's 17/2.

6 0

4 years ago

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192 fl oz = how many pt

castortr0y [4]

12, <span>12 pints1 pint = 16 ounces 1 ounce = 0.06 pin</span>

8 0

3 years ago

A student at a four-year college claims that average enrollment at four-year colleges is higher than at two-year colleges in the

Kitty [74]

Answer:

a) Since we have sample data and we don't know the population deviation we can use the t distribution in order to test the hypothesis

t would represent the statistic

b) $t=\frac{(\bar X_{2}-\bar X_{1})-\Delta}{\sqrt{\frac{s^2_{1}}{n_{1}}+\frac{s^2_{2}}{n_{2}}}}$ (1)

The degrees of freedom are given by $df=n_1 +n_2 -2=35+35-2=68$ Replacing the info given we got:

$t=\frac{(5216-5069)-0}{\sqrt{\frac{4773^2}{35}+\frac{8141^2}{35}}}}=0.0921$

c) $p_v =P(t_{68}>0.0921)=0.463$

Since the p value is higher than the significance level we don't have enough evidence to conclude that the true mean of enrollment is significantly higher for four year college than for two year college

Step-by-step explanation:

Information given

$\bar X_{1}=5069$ represent the mean for two year colleges

$\bar X_{2}=5216$ represent the mean for four year college

$s_{1}=4773$ represent the sample standard deviation for 1

$s_{2}=8141$ represent the sample standard deviation for 2

$n_{1}=35$ sample size for the group 2

$n_{2}=35$ sample size for the group 2

$\alpha=0.05$ Significance level provided

Part a

Since we have sample data and we don't know the population deviation we can use the t distribution in order to test the hypothesis

t would represent the statistic

Part b

We want to test if the mean of enrollment for four year college is higher than for two year college, the system of hypothesis would be:

Null hypothesis: $\mu_{2}-\mu_{1} \leq 0$

Alternative hypothesis: $\mu_{2} - \mu_{1} > 0$

The statistic is given by:

$t=\frac{(\bar X_{2}-\bar X_{1})-\Delta}{\sqrt{\frac{s^2_{1}}{n_{1}}+\frac{s^2_{2}}{n_{2}}}}$ (1)

The degrees of freedom are given by $df=n_1 +n_2 -2=35+35-2=68$ Replacing the info given we got:

$t=\frac{(5216-5069)-0}{\sqrt{\frac{4773^2}{35}+\frac{8141^2}{35}}}}=0.0921$

Part c

The p value would be given by:

$p_v =P(t_{68}>0.0921)=0.463$

Since the p value is higher than the significance level we don't have enough evidence to conclude that the true mean of enrollment is significantly higher for four year college than for two year college

6 0

4 years ago

Write the number that completes the analogy. X^2 is to 121 as x^3 is to _____​

Write the number that completes the analogy. X^2 is to 121 as x^3 is to _____