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shepuryov [24]
3 years ago
8

Is number 8 true or false

Mathematics
2 answers:
ElenaW [278]3 years ago
5 0
Hello :3

In general, any quadrilateral with perpendicular diagonals, one of which is a line of symmetry, is a kite. Every rhombus is a kite, and any quadrilateral that is both a kite and parallelogram is a rhombus. A rhombus is a <span>tangential quadrilateral</span>
Evgesh-ka [11]3 years ago
3 0
ALL RECTANGLES ARE QUADERTIALS IS TRUE, NOT FALSE BUT......

TRUEEEE

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we need to check to see if 27 to the second power + 45 to the second power equals 36 to the second power is a true statement the
Yuri [45]

Answer:

Thx for the points

Step-by-step explanation:

3 0
2 years ago
Given: cos θ=-4/5, sin x = -12/13, θ is in the third quadrant, 
USPshnik [31]

By definition of tangent,

tan(2<em>θ</em>) = sin(2<em>θ</em>) / cos(2<em>θ</em>)

Recall the double angle identities:

sin(2<em>θ</em>) = 2 sin(<em>θ</em>) cos(<em>θ</em>)

cos(2<em>θ</em>) = cos²(<em>θ</em>) - sin²(<em>θ</em>) = 2 cos²(<em>θ</em>) - 1

where the latter equality follows from the Pythagorean identity, cos²(<em>θ</em>) + sin²(<em>θ</em>) = 1. From this identity we can solve for the unknown value of sin(<em>θ</em>):

sin(<em>θ</em>) = ± √(1 - cos²(<em>θ</em>))

and the sign of sin(<em>θ</em>) is determined by the quadrant in which the angle terminates.

<em />

We're given that <em>θ</em> belongs to the third quadrant, for which both sin(<em>θ</em>) and cos(<em>θ</em>) are negative. So if cos(<em>θ</em>) = -4/5, we get

sin(<em>θ</em>) = - √(1 - (-4/5)²) = -3/5

Then

tan(2<em>θ</em>) = sin(2<em>θ</em>) / cos(2<em>θ</em>)

tan(2<em>θ</em>) = (2 sin(<em>θ</em>) cos(<em>θ</em>)) / (2 cos²(<em>θ</em>) - 1)

tan(2<em>θ</em>) = (2 (-3/5) (-4/5)) / (2 (-4/5)² - 1)

tan(2<em>θ</em>) = 24/7

4 0
3 years ago
What is the solution set?
DochEvi [55]

Answer:

option D(5,3)

Step-by-step explanation:

the correct answer is the last option

8 0
3 years ago
A rectangular prism made of inch cubes is shown.
emmasim [6.3K]

Answer:

you multpy 15 x 18 to get 270

Step-by-step explanation:

Hope this helps

8 0
2 years ago
20 POINTS!!! HELP ASAP!!!
Artemon [7]

Answer:

one solution

d=-2

Step-by-step explanation:

4(3d - 7) = -52

There is one solution to this equation

Distribute

12d -28 = -52

Add 28 to each side

12d-28+28 = -52+28

12d =-24

Divide each side by 12

12d/12 = -24/12

d = -2

3 0
3 years ago
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