Expression equivalent to (-3x + 6.3y)

Multiply. Write your answer in simplest form. 2 1/2 x 3 2/3

oksian1 [2.3K]

$2 \frac{1}{2} * 3 \frac{2}{3} = \frac{5}{2} * \frac{11}{3}$
= $\frac{55}{6}$
= $9 \frac{1}{6}$

7 0

4 years ago

Read 2 more answers

If you find this, it was an accident

Anna007 [38]

Alright, lols yes yes

6 0

3 years ago

Determine the critical value or values for a one-mean z-test at the 1% significance level if the hypothesis test is right-tailed

kifflom [539]

Answer:

We need to conduct a hypothesis in order to determine if the mean is greater than specified value, the system of hypothesis would be:

Null hypothesis: $\mu \leq \mu_o$

Alternative hypothesis: $\mu > \mu_o$

For this case the significance is 1%. So we need to find a critical value in the normal standard distribution who accumulates 0.99 of the area in the left and 0.01 in the right and for this case this critical value is:

$z_{crit}= 2.326$

Step-by-step explanation:

Notation

$\bar X$ represent the sample mean

$\sigma$ represent the standard deviation for the population

$n=$ sample size

$\mu_o$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to determine if the mean is greater than specified value, the system of hypothesis would be:

Null hypothesis: $\mu \leq \mu_o$

Alternative hypothesis: $\mu > \mu_o$

For this case the significance is 1%. So we need to find a critical value in the normal standard distribution who accumulates 0.99 of the area in the left and 0.01 in the right and for this case this critical value is:

$z_{crit}= 2.326$

3 0

3 years ago

Help me with these questions please.

statuscvo [17]

Answer:

What to chat

Step-by-step explanation:

y r u working so late

5 0

3 years ago

2x + y = -4 5x - 3y = 1 Solve with elimination method