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3 years ago

20 POINTS Circle each number below which is greater than its square. (i) 1 (ii) 2/3 (iii) -3 (iv) -1/2 (v) 5/4

Mathematics

1 answer:

ladessa [460]3 years ago

3 0

Answer:

(ii) (iii)

Step-by-step explanation:

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PLEASE HELP ANSWER THESE QUESTIONS!

Sliva [168]

Answer:

Step-by-step explanation:

a² - b² = (a+ b)(a - b)

1) (2n-4/2n) ÷ (n^2-4/n)

$=\frac{2n-4}{2n}*\frac{n}{n^{2}-4}\\\\=\frac{2n-2*2}{2n}*\frac{n}{n^{2}-2^{2}}\\\\=\frac{2*(n-2)}{2n}*\frac{n}{(n+2)*(n-2)}\\\\=\frac{1}{n+2}$

2) [y^2-36/y^2-49] ÷[ y+6/y-7]

$=\frac{y^{2}-36}{y^{2}-49}*\frac{y-7}{y+6}\\\\=\frac{y^{2}-6^{2}}{y^{2}-7^{2}}*\frac{y-7}{y+6}\\\\=\frac{(y+6)*(y-6)}{(y+7)*(y-7)}*\frac{y-7}{y+6}\\\\=\frac{y-6}{y+7}\\$

3) [m^2-1/ m^2-m] ÷ [m^2-7m-8/3m ]

$=\frac{m^{2}-1}{m^{2}-m}*\frac{3m}{m^{2}-7m-8}\\\\=\frac{(m+1)*(m-1)}{m*(m-1)}*\frac{3m}{(m-8)*(m+1)}\\\\=\frac{3}{m-8}$

Hint : m² - 7m - 8

sum = -7

Product = -8

Factor = (-8), 1

m² - 7m - 8 =m² - 8m + m - 8

= m*(m - 8) + (m-8)

= (m - 8)(m +1)

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3 years ago

Which of the following is an inscribed angle in the diagram below?

shutvik [7]

Answer:

Step-by-step explanation:

8 0

2 years ago

Which equation represents the function shown in the input-output table?

stepladder [879]

Answer:

Equation B

Step-by-step explanation:

Equation B because:

it is 7x + 3

so for the first one, it's 7 + 3

the second one is 14 + 3

the third one is 21 + 3

the fourth one is 28 + 3

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2 years ago

How to write an algebraic expression for (r+1) /14

Fittoniya [83]

I'm not so good but I think thatmeans r is a different number and its half of 14 so figure out an equation

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2 years ago

Please Help, Thank You!

irina [24]

Answer:

e=9

sorry thats all i know:(

Step-by-step explanation:

7 0

2 years ago

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