The first thing you should know is that you have a system of two equations with two unknowns.
Clearing we have:
y-x = 9
2y + 2x = -10
Step1: multiply equation 1 by -2
-2y + 2x = -18
2y + 2x = -10
Step2: add both equations:
4x = -28
x = -28 / 4 = -7
answer
The x-coordinate of the solution for the system of equations is x = -7
Answer:
Your answer is 539.93
Step-by-step explanation:
A = pi*r²
A = pi* 13²
A = pi*169
A = 539.93
I don’t know I just need the 4th thing blood
Area of a circle is pi x r x r
then you substitute the numbers in
therefore you would get 3.14 x 11 x 11 = 379.994
to the nearest hundredth degree would to 379 cm squared because you are finding the area so you put a small 2 above the cm
the person above has done it wrong as they have halved the radius but you only have the diameter to get the radius and they have used the wrong equation <span />
Answer:
a10 = 25
Step-by-step explanation:
I'm not certain that I have interpreted the question in the way it was intended; however, if I have:
a
10 = 3
(10
) − 5 =
30 − 5 = 25
