Express the area of the entire rectangle.

Mathematics

1 answer:

svet-max [94.6K]3 years ago

4 0

Answer:

$12n^4-15n^3-3n^2$

Step-by-step explanation:

The first step is to distribute the $3n^2$ to $(4n^2-5n-1)$ , like so:

$(4n^2-5n-1)$ $(3n^2)$

$12n^4-15n^3-3n^2$

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Answer:

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2 years ago

The length of the top of a table is 55 m greater than the width. the area is 8484 msquared2. find the dimensions of the table.

Oksana_A [137]

You have to do similar calculations you use in algebra. This is how I get the answer;
First I draw out the algebraic formula 55m • X = 8,484 m (meters) 2 (squared). Then I switch the sign from multiplication to division and switch put numbers 55 and 8,484 in different places and change it to your new formula 8,484/(divided) 55 =X. Then you do the math of 8,484 divided by 55 and get an answer of 154.254545. But you can just leave it at the first 2 digits on the right side of the decimal by rounding 4 down and leaving it at an answer of ~~(<This is your answer after being put together with these tips (you always right your final answer using your formula and plugging in the number that we got from dividing 8,484 by 55;

Final answer ( if they wanted it included in a formula); 8,484/55=X let X=~~154.25

Final answer (if they wanted it as one final number as you answer); ~~154.25

*Hope these tips helped you with this mathematical problem :)

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3 years ago

A square sheet of paper measures 25 centimeters on each side. What is the length of the diagonal of this paper?

Varvara68 [4.7K]

Answer:

35.36 cm

Step-by-step explanation:

The diagonal of a square will be given by

$D=\sqrt {a^{2}+b^{2}}$

Where a is the length of one side and b is the length of another side. For a square, botj sides are equal hence the diagonal calculations will be as follows

Given that a is 25 then

$D=\sqrt {25^{2}+25^{2}}$