Answer: a = -2/3
Step-by-step explanation:
Let's start by multiplying both sides by 
to simplify:
Looking only at the exponents, it seems like 
, so 
.
Answer:
21) 12 cm
22) 5.9 cm
Step-by-step explanation:
21) The base is 10, and if the other two sides are congruent and the perimeter is 36, we can figure out with simple algebra that the sides are 13 cm long.
Half of 10 is 5, so we can use the pythagorean theorem.
5^2+x^2=13^2
Rearranging the variables we have 169-25=x^2
144=x^2
x can be plus or minus 12, but since negative length is impossible we find that x is positive 12 cm.
22) We want to use sine, because we have opposite and hypotenuse. A simple and easy way to memorize this is the SohCahToa method. If we have opposite (O) and hypotenuse (H) we have OH. Soh has the letters O and H, and the S means we should use sine.
sine 36=a/10
Plug this into a calculator or desmos scientific calculator to get a=5.9
Y-y1= m(x1-x2)
using this formula
the answer is d
because slope has to remain the same if its parallel
It’s not 3 or 4 so I think 2
Answer:
none
Step-by-step explanation:
There is not a given angle side angle or a side angle side (no two angles and no two sides) so no to the first two.
HL includes two given side, which one must be the hypotenuse, and a right angle so no to that one.
