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4 years ago

Which of the following reasons completes the proof in line 2?

Mathematics

2 answers:

olga55 [171]4 years ago

8 0

Is there a picture? I don't know how to answer without the actual problem. Sorry,

Brums [2.3K]4 years ago

7 0

Answer with explanation:

A Quadrilateral is a Parallelogram, if any of this is possible in a Quadrilateral

1. One Pair of Opposite Sides are equal and Parallel.

2.Opposite sides are equal.

3. Diagonals Bisect each other.

4. One Pair of Opposite sides are parallel and Opposite angles are equal.

5. Opposite sides are Parallel.

Definition of parallelogram.

⇒⇒All quadrilaterals are parallelograms.

If both pairs of opposite sides are equal.

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Round to the nearest whole number.

faltersainse [42]

Answer:

Step-by-step explanation:

3 0

3 years ago

Drag the tiles to the boxes to form correct pairs

Brums [2.3K]

Answer:

1) $sin^{-1}(\frac{1}{\sqrt{2} })=45$

2) $cos^{-1}(\frac{\sqrt{3} }{2})=30$

3) $tan^{-1}(\sqrt{3})=60$

4) $sin^{-1}(1)=90$

Step-by-step explanation:

1) Value of $sin^{-1}(\frac{\sqrt{2} }{2}) =sin^{-1}(\frac{1}{\sqrt{2} })$

since sin45° = 1/√2

Therefore $sin^{-1}(\frac{1}{\sqrt{2} })=45$

2).Value of $cos^{-1}(\frac{\sqrt{3} }{2})$

Since cos 30° = √3/2

Therefore $cos^{-1}(\frac{\sqrt{3} }{2})=30$

3). Value of $tan^{-1}(\frac{3}{\sqrt{3} }) = tan^{-1}(\sqrt{3})=60$

since tan 60° = √3

therefore $tan^{-1}(\sqrt{3})=60$

4). Value of $sin^{-1}(1)$

Since sin90°=1

Therefore $sin^{-1}(1)=90$

3 0

3 years ago

Read 2 more answers

Find one value of xxx that is a solution to the equation:

alisha [4.7K]

Answer:

-3/2

Step-by-step explanation:

Given the funtion

(2x+3)² - 6x+9 = 0

(2x+3)² = 6x + 9

Expand

4x²+12x+9 = 6x + 9

4x²+12x - 6x = 0

4x²+6x = 0

4x² = -6x

4x = -6

x = -6/4

x = -3/2

Hence the value of x is -3/2

4 0

3 years ago

A garage door is 15 feet wide and 6 feet high. It is painted white, except for a rectangular panel 1 foot high an 9 feet wide th

Sloan [31]

First: find area of the entire door

15*6=90

then find area of the brown spot:

9*1=9

finally: subtract

90-9=81

3 0

3 years ago

Stephen kicked a ball inside. The equation that represents the height h in feet of the ball after being kicked and elapsed amoun

kodGreya [7K]

Answer:

The maximum height of the ball is: 14.0625ft

Step-by-step explanation:

The missing information is:

$h(t) = 30t - 16t^2$

Required

The maximum height the ball attained

First, we calculate the time to reach the maximum height.

For a function: $h(t) = at^2 + bt + c$

The maximum is: $t = \frac{-b}{2a}$

So, the maximum of $h(t) = 30t - 16t^2$ is:

$t = \frac{-b}{2a}$

Where

$a = -16; b = 30$

So:

$t = -\frac{30}{2*-16}$

$t = -\frac{30}{-32}$

$t = \frac{30}{32}$

$t = 0.9375$

The maximum height is then calculated as:

$h(t) = 30t - 16t^2$

$h(0.9375) = 30 * 0.9375- 16 * 0.9375^2$

$h(0.9375) = 28.125- 14.0625$

$h(0.9375) = 14.0625$

8 0

3 years ago