First, we calculate the common ratio.
an = arⁿ⁻¹
64 = -4096r³
r = -1/4
a(7) = -4096r⁷⁻¹
a(7) = -1
Answer:
Step-by-step explanation:
{y = 5x - 2
{x + 4y = 8
Use the Substitution Method:
x + 4[5x - 2] = 8
x + 20x - 8 = 8
21x - 8 = 8
+ 8 + 8
__________
21x = 16
____ __
21 21
x = 16⁄21 [Plug this back into both equations above to get the y-coordinate of 1 17⁄21]; 1 17⁄21 = y
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Answer:
100°
Step-by-step explanation:
Given
Quadrilateral PQMN and Quadrilateral WXYZ are similar so the corresponding angles are also similar.
so
< Z = <N = 100°
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Answer:
A) 5 units
Step-by-step explanation:
ABC is a 30-69-90 degree triangle whose sides, respectively, are in the ratio of 1 : : 2
so if the hypotenuse is 10, the side opposite the 30° angle is half of that, or 5