Answer:
D.
x and y are the terms think about the letters in the expression and those are the terms.
Answer:
14 headphones
Step-by-step explanation:
Use algebraic manipulation. Let x be the number of headphones sold this week:
89 = x + (3x + 5)
Combine like terms:
89 = 4x + 5
Get the x's on one side:
84 = 6x
Divide:
14 = x
So, Veronica sold 14 headphones this week.
Answer:
Surface area: 384in
Step-by-step explanation:
To find the surface area, you calculate the area of one side of the cube.
8 x 8 = 64
Once you get the area of one side of the cube, you multiply your new number by the number of sides in the cube. A cube has 6 sides, so you would multiply the area by 6.
64 x 6 = 384
Therefore, your surface area is 384in
The answer is D because my dad said so and my dad knows everything
Answer: 90% confidence interval would be (0.448, 0.552).
Step-by-step explanation:
Since we have given that
x = 125
n = 250
So, 
We need to find the 90% confidence interval.
so, z = 1.64
So, interval would be
Hence, 90% confidence interval would be (0.448, 0.552)
