Answer:
x=1
Step-by-step explanation:
distribute
-4x+16=12
subtract 16 to get x by itself
-4x=-4
divide -4 by -4
x=1
Answer:
30-21x
Step-by-step explanation:
Multiply parentheses by -7, then add the numbers.
From question given
Radius r = 5.5 ml
Volume = ?
We know that
Volume = The formula is 4/3 × π × radius3.
= 4/3 × 3.14× 5.5^3
= 696.557 ml^3 answer
1. 30% decrease
2. 33 1/3% increase
Step by step explanation:
Question 1.
$50 to $35 is a decrease, because 35 is smaller than 50.
(50-35)/50 * 100%
= 15/50 * 100%
= 30%
Ans: 30% decrease
Question 2.
150 days to 200 days is an increase because 200 is large than 150.
(200-150)/150 * 100%
= 50/150 * 100%
= 1/3 * 100%
= 33 1/3% or 100/3%
Ans: 33 1/3% increase
Answer:
∠ XYZ ≈ 66.4°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosY = = = , then
∠ Y = ( ) ≈ 66.4° ( to 1 dec. place )