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3 years ago

A quadrilateral is shown below. What is the slope of line segment R¯¯S¯¯? (Type numerical answer only)

Mathematics

1 answer:

frutty [35]3 years ago

3 0

Slope, m, is $\frac{rise}{run}$

rise = y2-y1 = 5
run = x2-x1 = 1

so m = 5/1 or just 5

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( I know the answers I just don't get why)

Over [174]

1)

neverminding how many grams or liters...or whatever unit for now
we know one bag of grass covered 1/6 of the lawn, "a whole" or 1, is 6/6
if 1 bag covers 1/6, to cover 6/6 is just 1/6 +1/6 +1/6 +1/6 +1/6 +1/6 , or 6 bags

2)

one can was enough for 1/4 of the sprayer, a full sprayer is 1 whole or 4/4, so 1/4 + 1/4 + 1/4 + 1/4 or 4 cans

3)

one potato gives enough for 1/3 for a lighbulb, again, 1 whole is 3/3, so 1/3 +1/3 +1/3 , so 3 potatoes

8 0

4 years ago

Naomi has 45 minutes to get ready for school she spends x minutes getting dressed write an expression that respetents the number

andriy [413]

ANSWER

$(45 - x) \: minutes$

EXPLANATION

Total minutes Naomi has at her disposal is 45 minutes.

The number of minutes she spends getting dressed is

$x$

To find the number of minutes she still has to get ready, we subtract the minutes spent from the total minutes.

The number of minutes she still have to get ready is

$(45 - x) \: minutes$

5 0

3 years ago

The U.S. Bureau of Labor Statistics reports that of persons who usually work full-time, the average number of hours worked per w

alukav5142 [94]

Answer:

The standard deviation of number of hours worked per week for these workers is 3.91.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by

$Z = \frac{X - \mu}{\sigma}$

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem we have that:

The average number of hours worked per week is 43.4, so $\mu = 43.4$ .

Suppose 12% of these workers work more than 48 hours. Based on this percentage, what is the standard deviation of number of hours worked per week for these workers.

This means that the Z score of $X = 48$ has a pvalue of 0.88. This is Z between 1.17 and 1.18. So we use $Z = 1.175$ .

$Z = \frac{X - \mu}{\sigma}$

$1.175 = \frac{48 - 43.4}{\sigma}$

$1.175\sigma = 4.6$

$\sigma = \frac{4.6}{1.175}$

$\sigma = 3.91$

The standard deviation of number of hours worked per week for these workers is 3.91.

6 0

3 years ago

9) True or False: Great Britain officially recognized the Confederate States of America

SpyIntel [72]

It legally recognised the belligerent status of the Confederate States of America (CSA) but never recognised it as a nation and neither signed a treaty with it nor ever exchanged ambassadors.

And i could tell that its not math... :)

Its False

6 0

4 years ago

Solve the inequality for x: -3(2x+5) < -45

balandron [24]

Answer:

x>5

Step-by-step explanation:

-3(2x+5)<-45

2x+5<-45/-3

2x+5<15

2x<15-5

2x<10

x<10/2

x<5

x>5

7 0

4 years ago