3 years ago

Which of the following are always classified as a trapezoid? Select all that apply.

Mathematics

2 answers:

8090 [49]3 years ago

7 0

Answer:

everything except for a quadrilateral

Step-by-step explanation:

Zarrin [17]3 years ago

6 0

C d e anything with 4 sides

You might be interested in

0 ÷ 0 = 1

TEA [102]

Answer:

0/0 = undefined not 1

Step-by-step explanation: Undefined means there are no solutions possible for the operations in view. The example in question is itself wrong. n/0 is infinite but not undefined. 0/0 is undefined

7 0

2 years ago

An employee at a factory is paid $9.25 per hour plus an $8.00 bonus for every 20 transformers assembled. Last week an employee w

stellarik [79]

Answer:

2664

Step-by-step explanation:

9.25×36+(380÷20)×8

3 0

3 years ago

Which expression converts 100 inches per minute to feet per minute?

Travka [436]

The answer is (inches/min)* (1ft/12in)

7 0

3 years ago

Read 2 more answers

Please me the shapes are confusing me please help quickly

nikdorinn [45]

Can you show the full screen ?

8 0

3 years ago

Solve for x in the equation x squared minus 4 x minus 9 = 29. x = 2 plus-or-minus StartRoot 42 EndRoot x = 2 plus-or-minus Start

Furkat [3]

Answer:

$x=2$\pm$\sqrt{42}$

Step-by-step explanation:

The given equation is:

$x^{2} -4x-9=29\\\Rightarrow x^{2} -4x-9-29=0\\\Rightarrow x^{2} -4x-38=0$

<u>Formula:</u>

A quadratic equation $ax^{2} +bx+c=0$ has the following roots:

$x=\dfrac{-b+\sqrt D}{2a}\ and\\x=\dfrac{-b-\sqrt D}{2a}$

Where $D= b^{2} -4ac$

Comparing the equation with $ax^{2} +bx+c=0$

a = 1

b = -4

c= -38

Calculating D,

$D= (-4)^{2} -4(1)(-38)\\\Rightarrow D = 16+152 = 168$

Now, finding the roots:

$x=\dfrac{-(-4)+\sqrt {168}}{2\times 1}\\\Rightarrow x=\dfrac{4+2\sqrt {42}}{2}\\\Rightarrow x=2+\sqrt {42}\\and\\x=\dfrac{-(-4)-\sqrt {168}}{2\times 1}\\\Rightarrow x=\dfrac{4-2\sqrt {42}}{2}\\\Rightarrow x=2-\sqrt {42}$

So, the solution is:

$x=2$\pm$\sqrt{42}$

5 0

3 years ago