I think that the correct answer is C
Answer:
B
Step-by-step explanation:
B shows a parabola, which is a quadratic equation, not a linear one.
Answer: 7.5kg
Step-by-step explanation:
Since Bill made mortar mix and he used 24kg of sand and 5kg of cement. This means that for 1 kg of cement, (24/5) = 4.8 kg of sand is used.
Therefore, when he uses 36kg of sand, the kg of cement used will be:
= 36 / 4.8
= 7.5 kg
Therefore, he'll use 7.5kg of cement and 36kg of sand.
Answer:
x = -1.59
Step-by-step explanation:
We are here given a equation and we need to solve out for x. The given equation is ,
Take log to the base " e " on both sides , so that we can remove the variable from the exponent .
Simplify using the property of log , 
, we have ,
Distribute by opening the brackets ,
This can be written as ,
Divide both sides by ln 4 ,
Simplify ,
On simplifying , we will get ,
<span>The solution would
be like this for this specific problem:
</span>
(2x+5)/7 = 1/x
(2x+5) x = 7
2x² + 5x - 7 = 0
( x -1) ( 2x + 7) = 0
x = 1 ( Omit x = -7/2)
<span>I am hoping that
this answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.</span>
