Solve:

We need to isolate k, so multiply both sides by the denominator, which is 64. When we do that, the fraction will cancel and we get:

If you want to check, plug in your answer to the original equation and see if it is true:


This statement is true, so
.
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
d is true
Step-by-step explanation:
The "Property<span> of </span>Zero" of Multiplication <span>shows that the product of </span>zero<span> and any number is </span>zero<span>.
</span>
Here is one example:
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5 x 0 = 0 .
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{"Five times zero equals zero."}.
{"Five multiplied by zero equals zero".}.
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Answer:
C
Step-by-step explanation: