Find the value of x y and z

Find the value of a.the angle measures are 127 degrees 71 degrees and 102 degrees

harkovskaia [24]

Answer:

11 degrees

Step-by-step explanation:

hope it helps

3 0

3 years ago

PLEASE HELP 11 points

iogann1982 [59]

$7(3e - 2f + 4) + 6e - 2 \\ 21e - 14f + 28 + 6e - 2 \\ 27e - 14f + 26$
Correct answer is 27e-14f+26

5 0

3 years ago

Chocolate Bliss sells their box of chocolate candy for $2.00 per candy plus a $12 packaging fee. Expressions in Sweets

dusya [7]

Answer:

8 box

Step-by-step explanation:

Chocolate Bliss : 3.5x + 4

Expressions : 3.5x

where x is the number of chocolates the relationship would be:

3x + 4 < 3.5x

4 < 0.5x

8 < x

it will be cheaper to buy from CB when you purchase less than 8 candies

5 0

3 years ago

Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

bixtya [17]

Answer:

For this case we can find the critical value with the significance level $\alpha=0.05$ and if we find in the right tail of the z distribution we got:

$z_{\alpha}= 1.64$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.344 -0.27}{\sqrt{\frac{0.27(1-0.27)}{125}}}=1.86$

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis and we can conclude that the true proportion of households with one person is significantly higher than 0.27

Step-by-step explanation:

We have the following dataset given:

$X= 43$ represent the households consisted of one person

$n= 125$ represent the sample size

$\hat p= \frac{43}{125}= 0.344$ estimated proportion of households consisted of one person

We want to test the following hypothesis:

Null hypothesis: $p \leq 0.27$

Alternative hypothesis: $p>0.27$

And for this case we can find the critical value with the significance level $\alpha=0.05$ and if we find in the right tail of the z distribution we got:

$z_{\alpha}= 1.64$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.344 -0.27}{\sqrt{\frac{0.27(1-0.27)}{125}}}=1.86$

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis and we can conclude that the true proportion of households with one person is significantly higher than 0.27

5 0

3 years ago

What is the slope of the equation y= 5/4x - 7/4?<br> –7<br> -7/4<br> 5/4<br> 5

Scilla [17]

Answer:

5/4

Step-by-step explanation:

5 0

4 years ago

Find the value of x y and z​

Find the value of x y and z