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Marianna [84]
2 years ago
6

When is a quadrilateral a parallelogram?

Mathematics
1 answer:
brilliants [131]2 years ago
6 0
C. when opposite sides are congruent and parallel
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A researcher computes r = 0.45 using a sample of 18 participants. Is this Pearson correlation coefficient significant for a two-
Eduardwww [97]

Answer with explanation:

Given : The computed r -value = 0.45

Sample size : n=18

Degree of freedom : df=n-2=18-2=16

Now, the critical value for Pearson correlation coefficient  for a two-tailed test at a .05 level of significance will be :

r_c=0.468   ( by critical correlation coefficient table)

Since , r>r_c i.e. 0.45>0.468 , then we say that his Pearson correlation coefficient is not significant for a two-tailed test at a .05 level of significance.

3 0
2 years ago
What is the value of g(3) when g(2) = 21–2?
Evgen [1.6K]

Answer:

g(3)=31.5-3

Step-by-step explanation:

first you want to find g(1) or g(x). all you have to do for this is divide every number by two, since 2/2 is 1.

g(1)=10.5-1

now to find g(30 you just multiply it all by 3.

g(3)=(10.5-1)*3

g(3)=31.5-3.

5 0
2 years ago
Does anyone have remind ill give u a code
NeTakaya

Answer:

no                        

Step-by-step explanation:

no

6 0
2 years ago
Read 2 more answers
you want to buy a new phone. The sales prise is $149.The sign says that this is $35 less than the original cost. What is the ori
Nina [5.8K]
The awnser is 148 You just need to add the two to get the original price
3 0
3 years ago
Read 2 more answers
If you were to round off the measurement 2.33501 grams to three digits, you would get ____. a. 2.33 g b. 2.35 g c. 2.34 g d. 2.3
antoniya [11.8K]
The answer is <span>c. 2.34 g.

Some rules of rounding are:
</span>1. If the number that you rounding is followed by 0, 1, 2, 3, and 4, the number will be rounded down (eg. 0.22 is rounded to 0.2). <span>
2. If the number that you rounding is followed by 6, 7, 8, and 9, the number will be rounded up (eg. 0.27 is rounded to 0.3).
</span>3. If the number that you rounding is even and followed by 5, the number will remain even (eg. 0.25 is rounded to 0.2).
4. If the number that you rounding is odd and followed by 5, the number will be rounded up to an even number (eg. 0.15 is rounded to 0.2).

So, let's start rounding:
2.33501 is rounded to 2.3350 (rule 1).
2.3350 is rounded to 2.335 (rule 1).
2.335 is rounded to 2.34 (rule 4).
Thus 2.33501 is rounded to 2.34.

6 0
2 years ago
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