Answer:
c. x=3
Step-by-step explanation:
4^x = 8^(x − 1)
4 = 2^2
8 = 2^3
2^2^x = 2^3^(x-1)
We know that a^b^c = a^(b*c)
2^(2x) = 2^(3*(x-1))
2^(2x) = 2^(3x-3)
The bases are the same so the exponents are the same
2x = 3x-3
Subtract 3x from each side
2x-3x = 3x-3-3x
-x = -3
x =3
Answer:
x=-3, y=1. (-3, 1).
Step-by-step explanation:
-x+5y=8
3x+7y=-2
----------------
3(-x+5y)=3(8)
3x+7y=-2
--------------------
-3x+15y=24
3x+7y=-2
------------------
22y=22
y=22/22
y=1
-x+5(1)=8
-x+5=8
-x=8-5
-x=3
x=-3
Answer: B
Step-by-step explanation:
Perimeter = 2(length+width)
'CD' = 20×cos(30) = 17.3205
width 'AD' = 20×cos(60) = 10
Perimeter = 2(17.3205+10)
= 2(27.3205)
= 54.641 =54.6
Answer:
Option C is correct.
Environmental regulation has led to dramatic improvements in air and water quality.
Step-by-step explanation:
- The national forests are protected from the exploitive ""dual use policy.
The dual use policy on any idea, technology, breakthrough etc. means such concept can be used for its intended purpose and for military use.
Natural forests are not excluded from this dual use policy & plenty forest exploiters hide under this policy to literally exploit natural forests.
- The Environmental Protection Agency was elevated to cabinet status in 1998 by President Clinton and the Republican Congress
This is not true as the EPA is still not a Cabinet department, but the Administrator is normally given cabinet rank.
- Environmental regulation has led to dramatic improvements in air and water quality.
Regulations have led plenty industries at the forefront of pollution to sit up and fix up. Strict laws and hefty fines have discouraged various water and air pollution means since those regulations came into place. This is the only correct statement about environmental policy amongst the options.
- Policymakers always give more consideration to environmental protection than to economic development when the two conflict.
This is true sometimes, but 'always'!? No, policymakers do not always give more consideration to environmental protection than to economic development when the two conflict.
Answer:
la persona que comió cinco sextos comió más pizza
Step-by-step explanation:
