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NikAS [45]
3 years ago
11

Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?

Mathematics
1 answer:
Alecsey [184]3 years ago
4 0
I believe it's +16, if you complete the square you'd have (x+4)^2 - 16 + a = 0 where a is the value you're looking for, so to make this correct you need a = 16
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the equation 7x - 3y = 42 relates to x and y. find three pairs of points (x,y) that make the equation true.
Sloan [31]
If it doesn't matter whether the points are integers or not you can just pick a number for either y or x and solve for the other variable. For example, if you pick 3 to be your x, plug it in and then solve for y. Start out with: 7x-3y=42 Plug in 3 for x: 7(3)-3y=42. Then, 21-3y=42. Subtract 21 from both sides and then divide by -3 on both sides. You end up with y=-7 so one of your points is (3, -7)
3 0
3 years ago
I need help please don't know this
SashulF [63]

Answer:

9 is the right answer

Step-by-step explanation:

I. If c = - 4 and d = 10

      then \frac{1}{4}(-4^{3} + 10^{2}  )

           = \frac{1}{4}(-64 + 100)

          = \frac{1}{4}(36)

          = 9

Hope that help :D

6 0
3 years ago
Reiki has 3/4 of a gallon of milk. She drinks one-third of the milk. How much milk does she drink?
hammer [34]
It should be 1/4 because one third of three fourths is one fourth. I hope this helps!
4 0
3 years ago
Read 2 more answers
Please help rn thanks
Mama L [17]

9514 1404 393

Answer:

  (b)  (1, 1/6)

Step-by-step explanation:

The "unit rate" is always the y-value for x=1 when the relationship is proportional (as it is here).

That point is not specifically shown on the graph. It would be (1, 1/6).

8 0
2 years ago
Fine the two consecutive whole numbers the square root is between: √(26) & √(60)
blondinia [14]
The consecutive number = 1,2 or 7,8 not 5,8 etc

whole number = 1,6,100 

square root of 60 = 7.746

so, if you want to know two consecutive whole numbers b/w swrt of 60
that would be

7 less than 7.6 less than 8

 
3 0
3 years ago
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