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postnew [5]
3 years ago
12

Which of the following illustrates the truth value of the given conditional statement?

Mathematics
1 answer:
Sati [7]3 years ago
7 0

Answer:

FT➪T

Step-by-step explanation:

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Express 9-y^2 as the product of two binomial factors.
matrenka [14]
3^2-y^2

then apply formula (a-b)(a+b)=a^2-b^2

so,,
(3-y)(3+y)
4 0
3 years ago
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Prove that the diagonals of a rhombus are perpendicular using coordinate geometry
lozanna [386]

If we draw a rhombus OABC on a coordinate grid with one vertex at the point O (0,0)

and let its height be 1 then (using the Pythagoras theorem) the coordinates of the 4 points will be as follows:-

O = (0,0) , A = (1, 1), B = (sqrt2+ 1 , 1) , C = (sqrt2, 0)

Slope of the diagonal OB = 1 / (sqrt2 + 1)

Slope of the other diagonal AC = - 1 / (sqrt2 - 1)

Product of the slopes = - 1 / ( sqrt2 + 1)(sqrt2 - 1) = -1 / 1 = -1

This proves that the diagonals are perpendicular.

5 0
3 years ago
1. Which of the following belongs in the first column of a formal proof?
navik [9.2K]

Answer:

i believe the answer would be c)theorems

Step-by-step explanation:

sorry if im wrong

8 0
2 years ago
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How long is the coastline of canada
netineya [11]
All you need to do is add 12383 and 113211 to get 125594
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3 years ago
Explain why the sum or product of rational numbers is rational; why the sum of a rational number and an irrational number is irr
Colt1911 [192]

Answer:

Rational numbers are fractional numbers, whose numerator and denominator are integers and the denominator is ever zero.

Step-by-step explanation:

The sum of rational numbers gives a rational number;

   \frac{1}{3}  + \frac{1}{3} = \frac{2}{3} , because the evaluation of the denominator always results to a non-zero integer.

The product of  \frac{1}{3} x \frac{1}{3} = \frac{1}{9}, which multiply both numerator and denominator to give integer numbers.

The sum and product of rational and irrational numbers are always irrational numbers, for instance,

           \frac{1}{3} x 7 = 2.3 , which is a number which decimal points that can only be represented by the product irrational number and rational number , where 7 is an irrational number.

       \frac{1}{3} + 7 =  7\frac{1}{3} , which is a whole number and fractional number combined.

4 0
3 years ago
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