Answer:
A and C
Step-by-step explanation:
solving the equations
A
x² - 4 = 0 ( add 4 to both sides )
x² = 4 ( take square root of both sides )
x = ± 
= ± 2 ← required solution
B
x² = - 4 ← has no real solutions
C
4x² = 16 ( divide both sides by 4 )
x² = 4 ( take square root of both sides )
x = ± = ± 2 ← required solution
D
2(x - 2)² = 0 , then
x- 2 = 0 ( add 2 to both sides )
x = 2 ← not the required solution
Answer: 988/1
Step-by-step explanation:
1000 minus 12=988 approximately 109.8 *9
First, you need how many miles in one hour. That means 18/9, which is two. So when Bob works five hours on Saturday, he would be able to paint 10 miles of lines.
Answer:
h=5in
Step-by-step explanation:
The following areas are equal:
1. Front and Back.
2. Left and right.
3. Top and Bottom.
Therefore, we calculate 3 areas and
multiply each by 2 to get the 6 areas:
As=2(3*h) + 2(10*h) + 2(10*3)=1901n^2.
6h + 20h + 60 = 190,
26h = 190 - 60 = 130,
h = 5in.
a) C
b) F
c) A
d) D
e) B
f) E
Step-by-step explanation:
To find the correct algebraic expression for each table.
For table a)
The values of T is 2 more than the values of n
So, T ⇒ n+2
For table b)
The values of T is 3 less than the values of n
So, T ⇒ n-3
For table c)
The values of T is thrice of the values of n
So, T ⇒ 3n
For table d)
The values of T is 2 more than from the thrice of the values of n
So, T ⇒ 3n+2
For table e)
The values of T is square of the values of n
So, T ⇒ n²
For table f)
The values of T is 1 less than from the twice of the values of n
So, T ⇒ 2n-1
