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Marrrta [24]
2 years ago
7

Choose the correct way to write a comparison of seven-twelfths and ten-twelfths.

Mathematics
1 answer:
ra1l [238]2 years ago
3 0

Answer:

ok so lets work this out

Step-by-step : 10/12 is closer to 12 than 7/12  soooo its not any of the ones that have these (:) and 10 is bigger than 7 so its

7/12 < 10/12

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A rectangular piece of cardboard is 16y cm long and 23 cm wide. Four square pieces of cardboard whose sides are 6y cm each are c
Anna11 [10]

Answer:

Area of remaining cardboard is 224y^2 cm^2

a + b = 226

Step-by-step explanation:

The complete and correct question is;

A rectangular piece of cardboard is 16y cm long and 23y cm wide. Four square pieces of cardboard whose sides are 6y cm each are cut away from the corners. Find the area of the remaining cardboard. Express your answer in terms of y. If your answer is ay^b, then what is a+b?

Solution;

Mathematically, at any point in time

Area of the cardboard is length * width

Here, area of the total cardboard is 16y * 23y = 368y^2 cm^2

Area of the cuts;

= 4 * (6y)^2 = 4 * 36y^2 = 144y^2

The area of the remaining cardboard will be :

368y^2-144y^2

= 224y^2

Compare this with;

ay^b

a = 224, and b = 2

a + b = 224 + 2 = 226

3 0
2 years ago
Whos bored rn? i am!!!
JulijaS [17]
I am very bored in class
6 0
3 years ago
Read 2 more answers
Which of the following is equivalent to 5 to the power of 3 + 1 to the power of 3
larisa [96]
While if u mean 5^3+1^3 then it’s 5^4 but if you mean 5^3+1^3 then it is 126
8 0
3 years ago
A) show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$.
goldenfox [79]
Hi,

A)
\dfrac{n(2n+1)(7n+1)}{6} \\&#10;&#10;= \dfrac{14n^3+9n^2+n}{6} \\&#10;&#10;= \dfrac{12n^3+6n^2}{6} + \dfrac{2n^3+3n^2+n}{6} \\&#10;&#10;=2n^3+n^2+ \dfrac{n(2n^2+3n+1)}{6} \\&#10;&#10;= 2n^3+n^2+ \dfrac{n(n+1)(2n+1)}{6} \\&#10;&#10;= 2n^3+n^2+ 1^2+2^2+3^2+...+n^2\ is\ an\ integer.&#10;

B)
Only if n=4*k or n=4*k+1 , k beeing an integer.

8 0
3 years ago
How do you solve 4 [ 5 ( 12 + 3 ) - 2 ] - 7
laila [671]
4 [ 5 (12 + 3) - 2 ] - 7

4 [ 5 (15) - 2 ] - 7

4 [ 75 - 2 ] - 7

4 [ 73 ] - 7

292 - 7

285
3 0
3 years ago
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