Answer:
r = 33 , s = 18
Step-by-step explanation:
Rationalise the denominator by multiplying both numerator and denominator by the conjugate of the denominator.
The conjugate of 4 - 
is 4 + , then
← expand numerator/denominator using FOIL
= 
= 
= 
= 
with r = 33 and s = 18
<span>1) Solve for x:
2x=12
divide both sides by 2
2x/2 = 12/2
x = 6
2) If x=10, what is x+2x+7?
</span>10 + 2(10) + 7 = 10 + 20 + 7 = 37
<span>3) A petting zoo always brings 5 goats to a birthday party. They also bring two chickens per guest. If there are 20 guests, how many animals in total will be brought?
</span>two chickens per guest and there are 20 guests
so 2 x 20 = 40 (40 chicken for 20 guests)
40 chicken + 5 goats = 45 animals
answer
45 animals in total
Answer:
Step-by-step explanation:
Look at the corners
