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ddd [48]
2 years ago
10

Please help. Algebra.

Mathematics
1 answer:
Tanya [424]2 years ago
6 0

Answer: The Answer is (A)

Step-by-step explanation: Have a brilliant day mate! - Lily ^-^

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Calculus A hard problem help please
dexar [7]
∑x = 1 + 2 + 3 + 4 + 5 + 6 = 21
∑y = 8 + 3 + 0 + 1 + 2 + 1 = 15
∑x^2 = 1 + 4 + 9 + 16 + 25 + 36 = 91
∑y^2 = 64 + 9 + 0 + 1 + 4 + 1 = 79
∑xy = 8 + 6 + 0 + 4 + 10 + 6 = 34

r = (n∑xy - ∑x∑y)/(sqrt(n∑x^2 - (∑x)^2)*sqrt(n∑y^2 - (∑y)^2)) = (6(34) - 21(15))/(sqrt(6(91) - (21)^2)*sqrt(6(79) - (15)^2)) = (204 - 315)/(sqrt(546 - 441)*sqrt(474 - 225)) = -111/(sqrt(105)*sqrt(249)) = -111/(10.25*15.78) = -111/161.7 = -0.68

3 0
3 years ago
Read 2 more answers
Help me! I have a retake on this and my last answer I put was A and D and I got it wrong!
IgorC [24]

9514 1404 393

Answer:

  A, E

Step-by-step explanation:

You are correct that the appropriate relationship is ...

  g = 0.4t . . . . choice A

You are also correct that an equivalent relationship is ...

  t = 2.5g . . . . choice D

However, when we say gallons are proportional to seconds, we usually expect that to be written ...

  g = kt . . . . for some value of k

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We note that another equivalent is ...

  g = 2/5t . . . . choice E

The appropriate choices are probably A and E. Choice D might be argued to be correct, but you could very well lose that argument to someone who prefers a "g = " form of the relationship.

6 0
3 years ago
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME!!!!!!!! I HAVE 2 QUESTIONS THATS ALL. I WILL GIVE POINTS, FAN, MEDAL. PLEASE I
Svetlanka [38]
The answer is c. mark me the brainlyest

7 0
3 years ago
An unopened bag of candy weighed 5 1/2 lb. After opening the bag and eating some of the candy, the bag weighed 2 1/4 lb. How man
sergij07 [2.7K]
There would have been 3.25 or 3 1/4 pounds of candy eaten.
you would do 5 1/2 - 2 1/4 and get 3 1/4 .
7 0
2 years ago
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About how much is 8/9 x 6/7
weqwewe [10]
8/9×6/7= 48/63. You multiply a cross the fraction. Your answer is 48/63.
3 0
3 years ago
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