Sn = n/2 (a1+an)
= 8/2 (3-38)
= 4 (-35)
= -140
Since x=x, this is an isosceles right triangle. By the Pythagorean Theorem:
h^2=a^2+b^2 (the hypotenuse squared is equal to the sum of the squared sides)
5^2=x^2+x^2
25=2x^2
2x^2=25
x^2=25/2
x=√(25/2)
x=5/√2 now if we rationalize the denominator...
x=(5√2)/(√2√2)
x=(5√2)/2
Answer: 17.92
Step-by-step explanation:
32% of 56
Change to fraction
32 /100 x 56
Change to decimal
0.32 x 56
= 17.92
Answer:
7
Step-by-step explanation:
12b -b = 11b
11b = 77
Divide both sides by 11
b = 7
