Answer:
5/16
Step-by-step explanation:
f(x) = 5 * (1/2) ^x
Let x=4
f(4) = 5 * (1/2) ^4
= 5 * (1/16)
= 5/16
Can’t you just substitute.
-x+4=2x-8
12=3x
4=x
Answer:
Step-by-step explanation:
we are given that
since m is greater than or equal to 0 it's a positive number therefore, the square root of m is defined and recall that √x²=|x| thus
remember that,|a|•|x|=|ax| hence,
and we're done!
The answer is 80. This is because we can find the area of one of the triangles by (4*8)/2 = 16. We multiply this by 4 since there are 4 triangles. 16*4 = 64. Now finally, we add the area of the base to this value. 4*4+64=80. Therefore the answer is 80 cm^2
Answer:
a and b.
Step-by-step explanation:
I’ll explain by giving an example.
Let’s say that: a=3;b=4;c=5; => they all are consecutive -> their sum is 12.
=> if we use a) n=3 => 3*n+3=3*3+3=12 => correct.
b) n+(n+1)+(n+2)= 3+4+5=12=> correct.
c)n+2n+3n=3+6+9=18=>incorrect.
d)3n=3*3=9=>incorrect.
