4(8m - 7n) + 6(3n -4m)
2 answers:
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Answer:
Step-by-step explanation:
The equation which can convert the temperature from degree Celsius into degree Fahrenheit is given as under
We can solve it further for F as
Dividing both sides by 5 we get
Now substituting values of C in this equation will give us the corresponding values of F
Ex : C=1
Hence 1 degree Celsius is degree Fahrenheit
The solution to the quadratic equation are option C) x= -5 and option E) x=3.
<u>Step-by-step explanation</u>:
The given quadratic equation is x²+2x-15 = 0.
Using the factorization method,
- product of the roots should be -15.
- Sum of the roots should be 2.
⇒ -15 = 5 -3
⇒ 2 = 5+(-3)
(x+5)(x-3) = 0
Therefore, x = -5 and x = 3