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3 years ago

Find the domain and range. state whether each set of ordered pairs is a function or not.

Mathematics

1 answer:

Gre4nikov [31]3 years ago

3 0

Answer:

Set A is a function

set B is not a function

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Express (2 + 6)2 as a trinomial in standard form.

ElenaW [278]

The answer is 16 it’s simple just use your way

7 0

3 years ago

Anyone can help me with this ??

mr_godi [17]

3=1 the statement is false

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3 years ago

The length of a rectangle is twice its width. Find its area, if its perimeter is 7 1/3 cm The area of the rectangle is _sq. cm.

Harman [31]

Answer:

The area of rectangle is $2\frac{80}{81}\ cm^2$

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

$P=2(L+W)$

we have

$P=7\frac{1}{3}\ cm=7+\frac{1}{3}=\frac{22}{3}\ cm$

$\frac{22}{3}=2(L+W)$

$\frac{11}{3}=(L+W)$ ----> equation A

Remember that

The length of a rectangle is twice its width.

$L=2W$ ----> equation B

substitute equation B in equation A

$\frac{11}{3}=(2W+W)$

solve for W

$W=\frac{11}{9}\ cm$

Find the value of L

$L=2(\frac{11}{9})$

$L=\frac{22}{9}\ cm$

<em>Find the area of rectangle</em>

$A=LW$

substitute the values

$A=(\frac{22}{9})(\frac{11}{9})$

$A=\frac{242}{81}\ cm^2$

Convert to mixed number

$\frac{242}{81}\ cm^2=\frac{162}{81}+\frac{80}{81}=2\frac{80}{81}\ cm^2$

7 0

3 years ago

What is the area of a rectangle that is 3 1/2" tall & 6 1/2" long?

klemol [59]

Answer:

The answer is 22 3/4

Step-by-step explanation:

So what i did was multiply 3 1/2 and 6 1/2.

And got 22 3/4!

7 0

2 years ago

Find the height of when's, 14,494. Round the height to the nearest thousand feet

8_murik_8 [283]

14,494
To round off the height value to the nearest thousand we can use the expanded from to clarity the position of numbers which is:
10, 000 = ten thousand
4, 000 = thousands
400 = hundreds
90 = tens
4 = ones
Here we can notice than four thousand is the value where the nearest thousands is placed. Hence we can round off the number of 14, 494 into 14, 000. Notice 0-4 rounding off rules.

8 0

3 years ago