Answer:
$3
Step-by-step explanation:
let the cost of apple pie be and the cost of chocolate pie be
.
We then express the situation as:
#Make y the subject of the formula in equation 1 then substitute in 2:
Hence, the cost of a chocolate pie is $3
Answer:
12 cm
Step-by-step explanation:
Well first we can cut the triangle in half and use the Pythagorean theorm
a^2+b^2=c^2
In this case we are going to be doing c^2-a^2=b^2
10^2-8^2=b^2
(10*10)-(8*8)=b^2
100-64=b^2
36=b^2
Now we just square root 36 (what number times itself is 36)
b=6
Since half of the one side equals 6 (DC) then the length of AC is 12!
Answer:
90°
Step-by-step explanation:
note that simplifies to
There are 360° in one turn of the circle , then
× 360° = 360° ÷ 4 = 90°