F(x)=ax^2+4 thus
a=(f(x)-4)/x^2=(5-4)/(-1)^2=1
Answer: a=1.
Ok so it's a proportion so this fraction is to this fraction. the smaller rectangle has sides 4 and 12. the larger one has 8 and x. so u set it up 4/12=8/x. the 4 and 8 r both the short sides so u want those on top and 12 and x r long sides so those on bottom. since that is not an answer option u can set it up as 8/4=x/12 because u still keep the variables of the same rectangle from being multipled with each other. so answer #2 is correct
Answer:
what's the question??
Step-by-step explanation:
Answer:
Lengths of the sides in the given order
15 inches
15 inches
30 inches
Step-by-step explanation:
The total of the sides,
(2x + 5) + (2x + 5) + (5x + 5)...then add the variables with x together and those without x together.
; 9x + 15
Hence if the perimetre of the triangle is 60 in
then...; 9x + 15 = 60
; 9x = 45
;Hence the variable.., x = 5
Lengths of the sides,
Substitute the value of x into the given lengths of the sides,
2(5) + 5 = 15 inches
2(5) + 5 = 15 inches
5(5) + 5 = 30 inches