Answer:

Step-by-step explanation:
We can add the two equations to eliminate
and solve for
.



Now, we can find for
by using substitution:
(given)


Hope this helps :)
Answer:
Step-by-step explanation:
<h3>C=π×d=3.142×160=502.72
</h3><h3>502.72/4=125.68cm
</h3><h3>Because we can make from the rectangle two squares and then we would have 4 squares in total.</h3><h3>That is for 2 marks.If you have got any ideas for the other two marks,I would love to hear from you.I am doing the same question.Also,I see you have done question 7.Would you mind to help me with it?</h3>
Answer: all real number / infinity €
15x+23-5x=43+10x
10x+23=43+10x
23=43
€
Answer:
180°
Step-by-step explanation: We are given the co-ordinates of ΔDEF as D(-1,6), E(1,3) and F(6,3).
Now, after rotation the co-ordinates of the new triangle D'E'F' are D'(1,-6), E'(-1,-3) and F'(-6,-3).
As we see that, the co-ordinates of triangle DEF are multiplied by negative sign to obtain the co-ordinates of triangle D'E'F'.
This means that, the triangle DEF is rotated 180° to form triangle D'E'F' because rotating 180 changes (x,y) to (-x,-y).
So, the rotation applied is 180° to ΔDEF.
Answer:
so if you use a calculater the answer will be 1.455192×10
25 or if not simplify 5^36
Step-by-step explanation: