Step-by-step explanation:
x+y=-12
x-y=-2
solve by simultaneous equations multiply the second equation by -1
-x-y=2
subtract both equations
y=10
x+10=-12
×=-22
Answer:
7.31 x 10^-2
Step-by-step explanation:
scientific notation multiplies a number between 1 and 10 by a power of ten
Answer:
2
Step-by-step explanation:
f(-2) = 2(-2)^2 +3(-2)
f(-2)=2
where ever you see x you put -2 there
i hope this helps
Answer:
43.75 miles
Step-by-step explanation:
You divide the 35 by 4 and then just add it to the original distance of 35 miles. 35/4=8.75
8.75+35=43.75