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astraxan [27]
3 years ago
9

Explain how 2 plus 2 Equals 4

Mathematics
2 answers:
adelina 88 [10]3 years ago
5 0
The definition of 2 is 1+1 and the definition of 4 is 1+1+1+1.
Now "+" is transitive such that the addition 1+1+1+1 can be broken down as 1+(1+1+1) or as (1+1)+(1+1) indifferently, which is 2+2 =4<span>
</span>
aivan3 [116]3 years ago
3 0
You have 2+2 in each 2 there are 1's so

2=(1+1) 2=(1+1) =4
4=1+1+1+1
2+2=4
think of 2's as 1's when adding did you know 2x2= 4 as well.
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A paper plate has a diameter of 35 yards. What is the circumference of the plate?
mihalych1998 [28]
Pi is multiplied by diameter so,
35 x pi= 109.995
tell me how many decimal places should the finals should be so that I can round off
6 0
3 years ago
If the largest angle of a triangle is 120° and it is included between sides of 1.5 and 0.5, then (to the nearest tenth) the larg
12345 [234]

Answer:

1.8 units.

Step-by-step explanation:

The questions which involve calculating the angles and the sides of a triangle either require the sine rule or the cosine rule. In this question, the two sides that are given are adjacent to each other and the given angle is the included angle. This means that the angle is formed by the intersection of the two lines. Therefore, cosine rule will be used to calculate the length of the largest side of the triangle. The cosine rule is:

b^2 = a^2 + c^2 - 2*a*c*cos(B).

The question specifies that a=0.5, B=120°, and c=1.5. Plugging in the values:

b^2 = 0.5^2 + 1.5^2 - 2(0.5)(1.5)*cos(120°).

Simplifying gives:

b^2 = 3.25.

Taking square root on the both sides gives b = 1.8 (rounded to the nearest tenth).

This means that the length of the third side is 1.8 units!!!

3 0
3 years ago
ANSWER PLSSS!! Brian puts $2000 in the bank. He leaves it there for 2 years. The bank uses an interest rate of 4%. How much mone
irinina [24]

Answer:

the answer is $1920

Step-by-step explanation:

4% of $2000 is $80 so if they take 4% its just $2000 - $80 = $1920

Hope this helped! <3

3 0
3 years ago
Mrs. Byrne's class went raspberry picking. The data show the weights of the cartoons of raspberries the students picked. Make a
Licemer1 [7]
Here is what you tally chart/table would look like:

Weight     Tallies

1/4            lll
2/4            ll
3/4            lll
4/4            l


Here is what your line plot would look like:

X                     X
X          X         X 
<u>X          X         X         X
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4 0
3 years ago
Pete has an old playstation that he bought for $400.
katrin2010 [14]

Answer:

1 year= $280

Step-by-step explanation:

30% of 400= 0.3 * 400= 120

400-120= 280

after one year the playstation cost 280

30% of 280= 0.3 * 280= 84

280-84= 196

after 2 years it cost $196

multiply the number by 0.3 to get 30% of the total

 

7 0
2 years ago
Read 2 more answers
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