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Molodets [167]
3 years ago
7

What is the vertex of the graph of y = –x2?

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
6 0
The answer to this question is (0,0).

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If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
Ludmilka [50]

Answer:

Step-by-step explanation:

y = k*x                    This is the formula for a direct variation.

  • y = 20
  • x = 4                        Substitute these values into the direct variation

20 = 4 * k                        Divide by 4

20/4 = 4k/4

k = 5

Answer: the constant of variation is 5

7 0
2 years ago
Dave is selling hand made masks for $8 per mask. He has already earned $120. Dave wants to make a total profit of more than $400
andrey2020 [161]

Answer:

I dont no

Step-by-step explanation:

4 0
3 years ago
Priscilla can make 4 bracelets in 19 minutes. At this rate, how many bracelets can she make in 76 minutes?
irakobra [83]
19 min = 4 bracelet
4 x 19 min = 76 min
If 19 min is 4 bracelets then 4 x 4 = 16 bracelets
6 0
3 years ago
Please help I don't know how to explain
spin [16.1K]
Well, 1/4 = 2x.
1/4 / x = 2

cause 2x is multiplication
and the other side shows divison for the right side of the and

also, solution
x = .125
7 0
3 years ago
Add <br><br> 3 1/4. And 1 3/4
Sav [38]

Answer:

the sum is 5

Step-by-step explanation:


3 0
3 years ago
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