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2 years ago

14

True or false? A figure that has opposite sides with equal lengths and equal slopes and diagonals with slopes that are negative

reciprocals must be a square.

1 answer:

Alex787 [66]2 years ago

3 0

Answer:

False.

Step-by-step explanation:

The diagonals are at right angles ( because of the negative reciprocal slopes)

so it could be a square or a rhombus.

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Pls help my with one and two asap

Dafna11 [192]

Answer:

Step-by-step explanation:

for nr. 1

sum of angles in a triangle=180

x=180-(81+84)=15

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for nr.2

x=180-(24+36)=120

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Find an explicit rule for the nth term of the sequence.

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Answer: -4 . 2ⁿ⁻¹

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the nth term is given by arⁿ⁻¹

a = the first term of the sequence

r = common ratio

n= number of terms

for this sequence

a = -4

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Answer:

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Step-by-step explanation:

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Which expression is equivalent to 4(2w + 3) + 2(3 + w)?

Semmy [17]

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Explain how the distance formula can prove Pythagoras' Theorem. In your

Paul [167]

Answer:

Given a triangle ABC, Pythagoras' Theorem shows that:

$c^2=a^2+b^2$

Thus,

$c = \sqrt{a^2+b^2}$

The distance formula, gives an equivalent expression based on two points at the end of the hypotenuse for a triangle.

$d^2 = (x_{2} -x_{1})^2 + (y_{2} -y_{1})^2$

$d = \sqrt{(x_{2}-x_{1})^2 + (y_{2} -y_{1})^2 }$

Therefore when given the hypotenuse with endpoints at

$(x_{1}, y_{1}) and {(x_{2}, y_{2})$

We know that the third point of the right triangle will be at

$(x_{2}, y_{1})$

and that the two side lengths will be defined by the absolute values of:

$(x_{2} - x_{1}) = a$

$(y_{2} - y_{1}) = b$

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2 years ago