The answer is the option A, which is: A. x-7=x²+2x-4
The explanation is shown below:
To solve this problem you must apply the proccedure shown below:
1. You have the following system equations given in the problem above:
<span>y=x-7
y=x²+2x-4
2. Therefore, when you substitute for y in the bottom equation, you obtain:
</span>x-7=x²+2x-4
Answer:
Therefore, total number of Kilometers Melek covered =3.3 + 3.32 = 6.62 kilometers.
Step-by-step explanation:
Distance covered by motorcycle = 3.8 kilometers.
Distance covered by horse = 3.32 kilometers.
Total time taken to complete the journey = 50.54 minutes.
We need to find the total number of kilometers Melek took the journey.
We are given time. But we need not to do anything with given time.
We just need to add the journey took by motorcycle and journey took by horse.
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Answer:
The product is the difference of squares is 
Step-by-step explanation:
Explanation
- The given expression is (x y-9)(x y+9).
- We have to multiply the given expression.
- Square the first term xy. Square the last term 9 .
3 (4x + 6) = 21
4x + 6 = 21/3
4x + 6 = 7
4x = 7 - 6
4x = 1
x = 1/4
