Answer: 23¹/₄
23 and 1 over 4
Explanation: Use PEMDAS OR BODMAS to calculate
(3/6)² + 7 × 4 -5 Parentheses first. 3/6 is 1/2 Then Exponents
(1/2)² is ¹/₄
Then calculate Multiplication and Division
7 × 4= 28
Now we have
¹/₄ + 28 - 5 Do the Addition and Subtraction, left to right.
28 ¹/₄ - 5
23 ¹/₄
<em>It looks as if the same question is posted twice here, and a bit confusing to sort out. I am assuming the parentheses around the fraction, and that the "power of 2" is the exponent. If the "2 + 7 × 4 -5" is all in parentheses as an exponent to calculate, that would result in a different answer. </em>
<em> I hope this helps.</em>
It depends on what type of plastics we're dealing with.
Let's take plastic bags for instance:
The advantages of plastics: It is durable, low cost, water resistant, lesser energy and heavy chemicals requirements in manufacture and are light weight. Many studies comparing plastic versus paper for shopping bags show that plastic bags have less net environmental effect than paper bags, requiring less energy to produce, transport and recycle; however these studies also note that recycling rates for plastic are significantly lower than for paper.Plastic carrier bags can be reused as trash bags or bin bags. Also, plastic bags are complimentary in many locations but are charged or "taxed" in others.
The disadvantages of plastics: Plastics bags are make of a non-renewable resource, which gives us more reasons to use recyclable shopping bags. Plastic bags are also flimsy and do not sit as well as either paper or cloth. They are a hazard to wildlife animals, if they are not disposed properly. Lastly, plastic bags clogs roadside drains, which could cause the flooding of the street at heavy rainfalls.
Answer:
1783, The hot air balloon paved the way for other inventors to explore and experience the sky, Montgolfier Brothers
Answer: i hope u like it
Explanation: Cell phones are needed for school children because when they are in trouble and there is no one to help they can call their parents or the police. Yes children should be allowed to use smartphone because forgetting knowledge about the world,, and also for some learning also children are allowed to use smartphone and using smartphone by children they should come to know about technology used in making the smartphone, by this children will have more knowledge.
