Answer: Country A - 10machines
Country A - 1,000machines
Country A - 10,000machine
step-by-step explanation:
Since 10℅ of all machines becomes worthless every year, let's look at each country.
If 100 machines are all the machines in country A, then 10% of all the machines in country A (i.e 100 machines) will be 10% of 100 = 10 machines.
Similarly for country B, it will be equivalent to 10% of 10000, which is equal to 1,000machines.
Same goes for country C i.e 10% of 1000000 = 10,000machines are worthless.
Answer:
Isolate the angle 2x, by following the reverse "order of operations".
Step-by-step explanation:
Explanation:
Step 1: Add 1 to both sides:
2
cos
2
(
2
x
)
=
1
Step 2: Divide both sides by 2:
cos
2
(
2
x
)
=
1
2
Step 3: Take the square root of both sides:
cos
(
2
x
)
=
√
2
2
or
cos
(
2
x
)
=
−
√
2
2
(don't forget the positive and negative solutions!)
Step 4: Use inverse of cosine to find the angles:
2
x
=
cos
−
1
(
√
2
2
)
or
2
x
=
cos
−
1
(
−
√
2
2
)
Step 5: Find angles that work:
2
x
=
π
4
or
2
x
=
7
π
4
or
2
x
=
3
π
4
or
2
x
=
5
π
4
Step 6: Solve for x:
x
=
π
8
,
7
π
8
,
3
π
8
,
5
π
8
or .785, 5.5, 2.36, 3.93
(decimal approximations are seen on the graph below)
Answer:
x^2-5x + 6
Step-by-step explanation:
Here, we want to expand the given expressions
To do this, we multiply each term in the first bracket with each term in the second
We then proceed to collect like terms
We have this as;
x(x-3) - 2(x-3)
= x^2 - 3x -2x + 6
= x^2 -5x + 6
Answer:
b
Step-by-step explanation:
Answer:
<u>153 1/4 feet</u>
Step-by-step explanation:
Remaining
- 200 - 46 3/4
- <u>153 1/4 feet</u>
