First, recall that
So if 
, then 
.
Second,
We know that 
and 
, which means we should also have 
.
Third,
but as we've already shown, we need to have , so we pick the negative root.
Finally,
Unfortunately, none of the given answers match, so perhaps I've misunderstood one of the given conditions... In any case, this answer should tell you everything you need to know to find the right solution from the given options.
Answer:
C. 360 cm²
Step-by-step explanation:
scale factor: 1:3
area = 3² times
40 x 9 = 360
5)
A. (30°) acute angle
B. (140°) obtuse angle
C. (90°) right angle
6)
A. The hypotenuse is side RT
B. Legs are sides RS and ST
Remember to do the same thing to both sides
use distributive prpoerty which is
a(b+c)=ab+ac so
pemdas
multiplication
8(x+1/4)=8x+8/4=8x+2
3(6x-9)=18x-27
now we have7x+8x+2=18x-27-8
add like terms
15x+2=18x-35
subtract 15x from both sides
2=3x-35
add 35 to both sides
37=3x
divide both sides by 3
37/3=x
12 and 1/3=x
24) $6.85*3 meals=$20.55. No, $20.55 does not equal to $25.42.
25) $92.70/18 working hours=$5.15
No offense, but my 8 year old sister can do this, how are you in high school?
