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3 years ago

All the info is in the pictures

Mathematics

1 answer:

Hunter-Best [27]3 years ago

6 0

Bearing in mind that an absolute value expression is in effect a piece-wise function with two cases, thus

$\bf |-n|=
\begin{cases}
+(-n)\\
-(-n)
\end{cases}\implies 
\begin{cases}
-n\\
n
\end{cases}
\\\\\\
n|-n|=2n\implies 
\begin{cases}
n-n=2n\implies 0=2n\implies &0=n\\
n+n=2n\implies 2n=2n\impliedby &inconsistent
\end{cases}$

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tekilochka [14]

Answer:

A and B

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4 years ago

Which graph shows a function whose inverse is also a function?

-BARSIC- [3]

Answer:

Option C.

Step-by-step explanation:

See the attached figure which represents the graph of the given options.

To determine if a line represents a valid function, we may use the vertical line test.

If it is touching more than one point on the line at a time, the line is not a valid function.

So, according to the previous rule, the function of figure C is a function and its inverse is also a function.

The answer is option C.

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3 years ago

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Which equation represents the larger number that is 2 more than 4 times a smaller number?

Setler79 [48]

X = 2 + 4y....with x being the larger number and y being the smaller number
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4 years ago

A mexican restaurant sells quesadillas in two sizes: a “large” 12 inch-round quesadilla and a “small” 6 inch-round quesadilla. W

Mumz [18]

Answer:

"half of the 12-inch quesadilla" is larger

Step-by-step explanation:

The "inch size" is the diameter of the circular quesadilla.

The area of circle is given by $\pi r^2$

We also know radius is half of diameter.

HALF OF 12-INCH QUESADILLA:

12in diameter = 6 inch radius, the area is:

$\pi(6)^2=36\pi$

Half of this is:

$\frac{36\pi}{2}=18\pi$

ENTIRE 6-INCH QUESADILLA:

6 inch diameter means 6/2 = 3 inch radius

The area of this is:

$\pi(3)^2 = 9\pi$

So, we can say that "half of the 12-inch quesadilla" is larger.

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4 years ago

If a given area of a square is 24cm2, estimate the length of one side of the square?

Pavlova-9 [17]

Answer:

2√6cm

Step-by-step explanation:

Area = L×L

A=L2

24 =L2

√24 =√L2

2√6= L

:.L =2√6.cm.

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3 years ago