Answer:
-3.6x + 2.16
Step-by-step explanation:
Just multiply everything inside the paranthese by what is outside of the parenthesis.
-2.4(1.5x) + 2.4(.9) ---------> i did addition because it is a double negative, equaling a positive
Answer:
$40.50
Step-by-step explanation:
54 is what u get for ten% off sixty
fourty dollars and fifty cents
what u get from
twenty five% off
54
Which recursive formula can be used to generate the sequence
below, where f(1) = 3 and n ≥ 1?
3, –6, 12, –24, 48
The recursive formula for this sequence is
f (n + 1) = –2 f(n)
at n=1 f(n)= 3
at n = 2
f(2) = -2 (3) = -6
n = 3
f(3) = -2 (-6) = 12 and so on
Answer:
32, 28
Step-by-step explanation:
3x^2 + 5
= 3(3)^2 + 5
= 27 + 5
= 32
x + 25
= 3 + 25
= 28
Answer:
x=110, y=50
Step-by-step explanation:
Draw a line perpendicular to the base CD from point A. The point of intersection is E. Angle AED=90 degrees. This is a right angle triangle. A triangle has a total angle of 180 degrees. Angle DAE is then 180-(90+70) = 20. The bases of a trapezoid are parallel to each other, making angle EAB a right angle. Add 90 + 20, and you'll get 110 degrees. This is the value of x.
Draw another line perpendicular to the base CD, this time from point B. The point of intersection is F. Angle ABF is 90 degrees. Angle FBC is 130-90=40. Angle BFC is also 90 degrees. You once again find the difference of the numbers from 180. 180-(40+90)=180-130=50. y=50 degrees.
