1. analyze data presented
It is not d because it is not greater than 80 degrees
it is not a because it is clearly not 10 degrees
making system of equations
8x+(4x+60)=180
addition
12x+60=180
move sixty to the other side
12x=120
division
x=10
Angle BEC=*x, so 8x=80
Answer: 80 degrees
Answer:
Option A
Step-by-step explanation:
Let's denote:
x is the number of albums Teresa downloads.
y is the number of individual songs Teresa downloads.
=> 9x + y = 25
Let's check:
Option A: x = 2 and y = 7 => 9 x (2) + 7 = 18 + 7 = 25 => valid
Option B: x = 1 and y = 8 => 9 x (1) + 8 = 9 + 8 = 17 => invalid
Option C: x = 4 and y = 5 => 9 x (4) + 5 = 36 + 5 = 41 => invalid
Option D: x = 3 and y = 6 => 9 x (3) + 6 = 27 + 6 = 33 => invalid
Answer:
4. F(x) = (x -8)^2 -6
Step-by-step explanation:
The function ...
f(x) = (x -h)^2 +k
shifts the parent function h units to the right and k units up. Here, the parent function is shifted right and down, so h > 0, k < 0. This matches choice 4.
F(x) = (x -8)^2 -6
Answer:
8
Step-by-step explanation:
let the ratio constant be 'x'
=> 2x:3x
sum = 2x + 3x = 5x
Total number of boys
=>(2x/5x)20 = 8
Answer:
81/16
Step-by-step explanation:
We have [(3^2 * 5^0) / 4]^2
= [ ( 9 * 1) / 4]^2
= (9/4)^2
= 81/16