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Paraphin [41]
3 years ago
9

of 13 possible books, you plan on taking 7 with you on a vacation. How many different collections of 7 books can you take?

Mathematics
1 answer:
ella [17]3 years ago
5 0
1 i think is the answer.
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Solve this equation. 6>x+7
sveticcg [70]

Answer:

Step-by-step explanation:

6>x+7

or -x>7-6

or -x>1

x<-1

3 0
3 years ago
Which is heavier: 500 pounds of feathers or 500 pounds of lead?
spayn [35]
They weigh the same
5 0
3 years ago
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Which points are on the perpendicular bisector of the given segment? Check all that apply. Please explain how you got your answe
ser-zykov [4K]
First, you have to find the equation of the perpendicular bisector of this given line. 
to do that, you need the slope of the perpendicular line and one point.
Step 1: find the slope of the given line segment. We have the two end points (10, 15) and (-20, 5), so the slope is m=(15-5)/(10-(-20))=1/3
the slope of the perpendicular line is the negative reciprocal of the slope of the given line, m=-3/1=-3 
step 2: find the middle point: x=(-20+10)/2=-5, y=(15+5)/2=10      (-5, 10)
so the equation of the perpendicular line in point-slope form is (y-10)=-3(x+5)

now plug in all the given coordinates to the equation to see which pair fits:
(-8, 19): 19-10=9, -3(-8+5)=9, so yes, (-8, 19) is on the perpendicular line. 

try the other pairs, you will find that (1,-8) and (-5, 10) fit the equation too. (-5,10) happens to be the midpoint. 

4 0
2 years ago
Read 2 more answers
a water faucet leaked 2 1/6 liters of water every 1/3. hour it leaked at a rate of how many liter per hour?
ladessa [460]
2 1/18. Hope this will help you
4 0
2 years ago
Read 2 more answers
Mary is the manager of a new clothing shop. The shop located in a new shopping mall and Mary wants to estimate the average daily
sergeinik [125]

<u>Explanation:</u>

a) First, note that the Type I error refers to a situation where the null hypothesis is rejected when it is actually true. Hence, her null hypothesis would be H0: mean daily demand of her clothes in this region should be greater than or equal to 100.

The implication of Type I error in this case is that Mary <u>rejects</u> that the mean daily demand of her clothes in this region is greater than or equal to 100 when it is actually true.

b) While, the Type II error, in this case, is a situation where Mary accepts the null hypothesis when it is actually false. That is, Mary <u>accepts</u> that the mean daily demand of her clothes in this region is greater than or equal to 100 when it is actually false.

c) The Type I error would be important to Mary because it shows that she'll be having a greater demand (which = more sales) for her products despite erroneously thinking otherwise.

5 0
3 years ago
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