Use the formula
a_n = a_1•r^(n-1)
a_23 = 25•(1.8)^(23 - 1)
Can you finish?
Answer:
x = 1, y = 1
Step-by-step explanation:
3x - 4y = -1
5x + 2y = 7
If we multiply the whole second equation by 2, we get:
10x + 4y = 14
Adding this to the first equation:
10x + 4y + 3x - 4y = 14 - 1
13x = 13
x = 1
Applying this to the second equation:
5 (1) + 2y = 7
2y = 2
y = 1
Answer:
-1.9
Step-by-step explanation:
The opposite of the opposite is the original number, -1.9.
It is located at -1.9 on the number line.
It is 12 since 1/6=6^-1=6
implies 2*6=12
Answer:
30 degrees
Step-by-step explanation:
This is an isosceles triangle having 2 equal sides and 2 equal base angles.
since the measurement of all the internal angles of the triangle is 180 degrees and we know that each base angle is 75 degrees
solving for x:
75 + 75 + x = 180 degrees
150 + x = 180
x = 180 - 150
x = 30 degrees
