What is the definition of a two-column proof

Answers

Answer 1

Answer: Definition of Two-Column Proof. A proof is a logical argument presented with factual statements in order to arrive at a conclusion. Writing a proof is like solving a puzzle or using legos to create a model of something. Everything needs to fit in an appropriate place.

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2. Given the following functions f(x) and g(x), solve (f + g)(5) and select the correct answer below:f(x) = 8x − 13 g(x) = x − 9 23 27 31 40
Quick Algebra questions please :) 1). Which values best approximate the solutions of -4x^2+11x+2=0?A). 1.5 and 2.9B). -0.2 and 2.9C). 2 and 2.9D). -0.2 and 22). What is the solution set of 4x^2-3=11x?A). {-3/4,1}B). {1/4,-3}C). {-1/4,3}D). {3/4,-1}3). What would the graph of g(x)=-(x+2)^2+5 look like?
If y varies directly as x, and y is 180 when x is n and y is n when x is 5, what is the value of n?
Write 5.1 x 10^-3 as an ordinary number.
A line segment is drawn from (1, 9) to (4, 9) on a coordinate grid. Which answer explains one way that the length of this line segment can be determined? A. Add 9 + 4. B. Add 4 + 1. C. Subtract 9 – 4. D. Subtract 4 – 1.

A triangle with two congruent sides is always a(n)_______________ triangle.a. right
b. scalene
c. isosceles
d. equilateral

Answers

Scalene triangle → Different length, therefore no congurent sides.
Isosceles triangle → Same length, therefore it has two congurent sides.
Equilateral triangle → All length are comparable, it has three congurent sides.
Right triangle → Measures 90°, in some cases, it has two congurent sides.

Congurent defination → Same shape and same size.

Answer → C) Isosceles triangle.

The most commonly used form of markup is based on?

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Best Answer is : Changing more than the cost that it took you to produce .

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What does it mean if the probability is 20% that a spinner will stop in a red section? A.
There is one chance in 5 that the spinner will stop in a red section.

B.
It is 20 times more likely that the spinner will stop in a red section than any other section.

C.
If the spinner is spun 100 times it is certain that it will stop in the red section exactly 20 times.

D.
There is one chance in 20 that the spinner will stop in a red section.

Answers

20% = 20/100 = 1/5

Hence, there is one chance in five that the spinner will stop in a red section.

Simplify the expression

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10/2
5/1
the answer is 5 because the two 12P's cancel each other out.

Billy stacked six pieces of wood on top of one another. If each piecewas three-quarters of a foot tall, how tall was his pile?

Answers

$6*0.75=6* (3)/(4) = (6*3)/(4) = (18)/(4) = (16+2)/(4) = (16)/(4) + (2)/(4) =4.5$

A basketball court is in the shape of a rectangle. It has a length of (x − 7) meters and a width of (x + 3) meters. The expression below represents the area of the court in square meters:(x − 7)(x + 3)

Which of the following simplified expressions represents the area of the basketball court in square meters?

− 6x + 3
x^2 − 21
x^2 − 4x − 21
x^2 − 7x + 3

Answers

x^2 -3x+7x-21

so simplified is:

x^2 - 4x - 21

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The area of the garden is 13.92 square meters. A fence is planned around the perimeter of the garden. How many meters of fencing are needed?

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you are lying 120 feet away from a tree that is 50 feet tall you look up at the top of the tree apart a proximately how far is your head from the top of the tree in a straight line