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bixtya [17]
3 years ago
9

Which steps will verify that a parallelogram is a rectangle? Check all that apply.

Mathematics
2 answers:
avanturin [10]3 years ago
8 0

Answer;

-Calculate the lengths of the diagonals, and show that they are equal.

-Calculate the slopes of every side, and show that adjacent sides are perpendicular.

Explanation;

-A parallelogram is a quadrilateral with 2 pairs of opposite, equal and parallel sides. If the diagonals of a parallelogram are congruent, then it’s a rectangle and also if a parallelogram contains a right angle, then it’s a rectangle.

UkoKoshka [18]3 years ago
5 0

Answer:

1st and last

Step-by-step explanation:

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4x^2-2x-4=0 solve using quadratic formula
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Answer:

Step-by-step explanation:

Although you can start with 4x^2-2x-4=0, it's just slightly easier to reduce the coefficients.  4x^2-2x-4=0 becomes 2x^2 - x - 2 = 0.

The discriminant (part of the quadratic formula) is b^2 - 4ac.  Using b = -1. a = 1 and c = -2, we get (-1)^2 - 4(2)(-2), or 17.

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Then the quadratic formula   x = ---------------------------

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takes on the values  x = -----------------  =  ---------------

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4 0
3 years ago
F(x)=3x+5 and g(x)=2x+1<br><br>value of x​
AlekseyPX

You can treat x and 2x+1 just as though they are real numbers.

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Please help with these problems.
DiKsa [7]
13 should be b and
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What is 52,000,000 × 706,000? A) 36712 × 10 13 B) 36712 × 10 12 C) 3.6712 × 10 13 D) 3.6712 × 10 14
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