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Sloan [31]
3 years ago
6

Can you tell me the answers and how you got them??thx

Mathematics
1 answer:
MAXImum [283]3 years ago
8 0
Use the distance and midpoint formula. Distance formula is: square root of (x2-x1)^2 + (y2-y1)^2. Midpoint formula is: (x1 +x2)/2 , (y2+y1)/2.
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A 20% acid solution is mixed with 20 liters of a 45% acid solution. How much of a 30% acid solution will result?
vaieri [72.5K]

Answer:

50 liters

Step-by-step explanation:

If x is the volume of 20% acid, then:

x (0.20) + 20 (0.45) = (x + 20) (0.30)

0.2x + 9 = 0.3x + 6

3 = 0.1x

x = 30

30 liters of 20% acid are needed, so there will be a total of 50 liters of 30% acid.

6 0
3 years ago
In November, the Sport Shop sold
Neko [114]

Answer:

March is the first month

Step-by-step explanation:

If we make a graph. We can see that the quantity of sold water skis overpasses the quantity of snow skis in the month of March.

5 0
3 years ago
I really need help with this, my teacher doesn't really teach and I'm stumped again.​
yarga [219]

Answer:

JMK = 54

JKH = 126

HLK = 90

HJL = 27

LHK = 63

JLK = 27

Step-by-step explanation:

Just use 180 for total angles in each triangle. Vertical angles mean the opposite to 126 is 126 and the other two that make up the inner vertices are (360- 126*2)/2 = 54

So, 126, `16, 54 , 54 are the inner angles in the circle. Just go from there.

5 0
3 years ago
What is the same ration of 2/3
frez [133]

Answer:

4/6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which of the objects shown below could be sliced to create square cross-sections?
maw [93]
A cube because it’s already square n can be cut in square cross sections
7 0
3 years ago
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