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4 years ago

All rectangles are quadrilaterals true or false Hurry

Mathematics

2 answers:

Inessa [10]4 years ago

8 0

It is true they both have 4 sides

Lorico [155]4 years ago

7 0

Answer:

Yes.

Step-by-step explanation:

A quadrilateral is any polygon with four sides. A rectangle, by definition, is a polygon with four sides and four right angles. Thus, every rectangle is a quadrilateral.

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A computer program contains one error. In order to find the error, we split the program into 6 blocks and test two of them, sele

Aleksandr-060686 [28]

There are $\dbinom62$ ways of selecting two of the six blocks at random. The probability that one of them contains an error is

$\dfrac{\dbinom11\dbinom51}{\dbinom62}=\dfrac5{15}=\dfrac13$

So $X$ has probability mass function

$f_X(x)=\begin{cases}\dfrac13&\text{for }x=1\\\\\dfrac23&\text{for }x=0\end{cases}$

These are the only two cases since there is only one error known to exist in the code; any two blocks of code chosen at random must either contain the error or not.

The expected value of finding an error is then

$\displaystyle\sum_{x=0}^1xf_X(x)=0\times\dfrac23+1\times\dfrac13=\dfrac13$

7 0

3 years ago

The plane that contains points C and T can also be named plane...

Mnenie [13.5K]

Answer:

A) CUB

Step-by-step explanation:

Of the suggested planes, only CUB contains both points C and T.

___

<em>Comments on the other answer choices</em>

BED contains point T, but not C

ACE contains point C, but not T

ABE contains neither C nor T

6 0

3 years ago

PLZ HELP!! Algebra is not my thing, 30 points!!<br><br> 5x + 2 = 3x + 4(2x - 1)

ira [324]

Answer:

$5x + 2 = 3x + 4(2x - 1) \\ 5x + 2 = 3x + 8x - 4 \\ 3x + 8x - 5x = 2 + 4 \\ 6x = 6 \\ \boxed{x = 1}$

8 0

3 years ago

A farmer harvests 15 cucumbers for every 45 carrots. Which of the following ratios represents the ratio of cucumbers to carrots,

Sever21 [200]

15 cucumbers to 45 carrots...

so the ratio of cucumbers to carrots is : 15/45 which reduces to 1/3 <==

5 0

4 years ago

Read 2 more answers

Help pls. i rlly need help

exis [7]

Answer: the Stamp Act imposed a direct tax on the colonists. Specifically, the act required that, starting in the fall of 1765, legal documents and printed materials must bear a tax stamp provided by commissioned distributors who would collect the tax in exchange for the stamp.Jul

Step-by-step explanation:

No explanation

8 0

3 years ago