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disa [49]
3 years ago
15

HELPPPPPP DUE AT 5PM

Mathematics
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

1.B    2.B    3.B    4.B

Step-by-step explanation:

They are all B  0_0                

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Which represents a unit rate?
Vladimir [108]

Answer:

Orange juice costs $3 per jug

Step-by-step explanation:

You can multiply the number of jugs by $3 to find the total cost.

All the others will have to be divided to find the unit rate.

Ex: 36/3 =12

4 0
3 years ago
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Given that the line y=c-2x is tangent to the curve y^2=kx where c and k are non-zero constants,express k in terms of c
Viktor [21]

Answer:

k = -8c.

Step-by-step explanation:

y^2 = kx

Find the slope of the tangent by differentiating:

y' 2y = k

y' = k / 2y = the slope of the tangent.

The given equation of the tangent is y = -2x + c so the slope = -2.

Therefore  k/2y =  -2  so k = -4y and y = -k/4

y^2 = kx so k^2/16 = kx giving x = k/16.

Substituting for x and y in y = -2x + c:

-k/4 = -2 k/16 + c

-k/4 = -k/8  + c

c = -k/4 + k/8 = -k/8.

So -k = 8c

k = -8c.

3 0
4 years ago
What is the value of 2x + y2 − xy for x = 1 and y = 4? A. 14 B. 2 C. 6 D. 22
ratelena [41]
The correct answer is C.

8 0
4 years ago
PLEASE HELP ASAP !!! <br><br> compare and contrast how to graph x=2 and y=-4
baherus [9]

Answer:

I attached pictures of the two graphs, I hope they help!

Step-by-step explanation:

7 0
3 years ago
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An apple and a banana cost $1.10 in total. The apple costs $1.00 more than the banana. How much does the banana cost, in cents?
Elena L [17]
The answer is 10 cents 
8 0
3 years ago
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