What is the measure of angle U?<br> A. 35°<br> B. 45°<br> C. 100°<br> D. 180°

2950 - 125 - 50 =<br> I dont resly understand

Masja [62]

Answer:

$2950 - 125 - 50 \\ = 2950 - (125 + 50) \\ = 2950 - 175 \\ = \boxed{2775}$

<h3><u>2775</u> is the right answer.</h3>

7 0

2 years ago

Solving linear equations

AlexFokin [52]

Answer:

(x, y ) = ( $\frac{1}{2}$ , $\frac{5}{2}$ )

Step-by-step explanation:

given the 2 equations

4x + 2y = 7 → (1)

y = 5x → (2)

Substitute y = 5x into equation (1)

4x + 2(5x) = 7

4x + 10x = 7

14x = 7 ( divide both sides by 14 )

x = $\frac{7}{14}$ = $\frac{1}{2}$

substitute this value into equation (2)

y = 5 × $\frac{1}{2}$ = $\frac{5}{2}$

4 0

2 years ago

A recipe of pasta makes enough for eight servings. How many servings can be made using 4/8 of each ingredient in the recipe?

Sedaia [141]

You could only make 4, as that is half of the amount of materials needed to make 8.

4 0

3 years ago

Read 2 more answers

A psychologist is interested in knowing whether adults who were bullied as children differ from the general population in terms

MissTica

Answer:

$t = \frac{39.5-30.6}{\frac{6.6}{\sqrt{25}}}= 6.74$

The degrees of freedom are given by:

$df =n-1= 25-1=24$

Now we can calculate the p value with the following probability:

$p_v = 2*P(t_{24}>6.74)= 5.69x10^{-7}$

And for this case since the p value is lower compared to the significance level $\alpha=0.05$ we can reject the null hypothesis and we can conclude that the true mean for this case is different from 30.6 at the significance level of 0.05

Step-by-step explanation:

For this case we have the following info given:

$\bar X = 39.5$ represent the sample mean

$s =6.6$ represent the sample deviation

$\mu = 30.6$ represent the reference value to test.

$n = 25$ represent the sample size selected

The statistic for this case is given by:

$t =\frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}$

And replacing we got:

$t = \frac{39.5-30.6}{\frac{6.6}{\sqrt{25}}}= 6.74$

The degrees of freedom are given by:

$df =n-1= 25-1=24$

Now we can calculate the p value with the following probability:

$p_v = 2*P(t_{24}>6.74)= 5.69x10^{-7}$

And for this case since the p value is lower compared to the significance level $\alpha=0.05$ we can reject the null hypothesis and we can conclude that the true mean for this case is different from 30.6 at the significance level of 0.05

3 0

3 years ago

2.8t+5.7t= answer plsss

Arte-miy333 [17]

Answer:7.15t

Step-by-step explanation:

You have to add 2.8t plus 5.7t together

6 0

2 years ago

Read 2 more answers

What is the measure of angle U? A. 35° B. 45° C. 100° D. 180°