Answer:
C
Step-by-step explanation:
Okay! Time to use the Pythagoras theorem.
a^2 + b^2 = c^2
4^2 + 7^2 = x^2
16 + 49 = c^2
65 = c^2
Let's take the square root of both sides to get
c ~ 8.06
C
:)
Answer:

Step-by-step explanation:
We can use substitution to find the value of
:




Hope this helps :)
Answer: b) f(m)
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
Expand brackets
2x + 16 - 4x = 10x + 4
Rearrange so that x's are on one side and whole numbers are on the other
2x - 4x - 10x = 4 - 16
Simplify
-12x = -12
Make x on its own
x = 1
<h2>
Answer:</h2>
-1/3x
<h2>
Step-by-step explanation:</h2><h3>Known :</h3>
- x1 = -3
- x2 = 0
- y1 = 1
- y2 = 0
<h3>Asked :</h3>
<h3>Solution :</h3>
We can find the straight line equation using this formula,

Insert all we know inside the formula,

Use cross multiplication,
3(y - 1) = -1(x + 3)\
3y - 3 = -x - 3
3y = -x - 3 + 3
3y = -x
y = -1/3x
<h3>Conclusion :</h3>
The correct equation is y = -1/3x