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luda_lava [24]
3 years ago
13

E varies directly with the square root of C. If E=40 when C=25 find: E when C= 49

Mathematics
2 answers:
Lesechka [4]3 years ago
8 0

Answer:

Step-by-step explanation:

tiny-mole [99]3 years ago
6 0

Answer: E = 56

Step-by-step explanation:

E is proportional to √C

To remove proportionality, introduce a constant (k).

E = k × √C

From question,

E = 40 and C = 25

So,

40 = k ×√25

40 = k × 5

k = 8

Now,

C = 49

k = 8

E = ?

E = k√C

E = 8 × √49

E = 8 × 7

E = 56

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7 0
3 years ago
T m = the number of minutes it will take Beck to finish his homework. Choose the equation that can be used to find the solution
kramer

Answer:

0.3 m = 12

Step-by-step explanation:

<em>See comment for complete question</em>

Given

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3 0
2 years ago
Calib received $50 for his birthday and put it in his piggy bank. Each week, he puts 2 more dollars in his bank. The amount of m
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Answer:

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8 0
3 years ago
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vazorg [7]

Step-by-step explanation:

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6 0
2 years ago
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Bumek [7]

The step function is characteristic of the floor or ceiling functions, which map a real number to an integer.  There's clearly a factor of 2, indicated by two units of y for every one unit of x.

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8 0
3 years ago
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