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ollegr [7]
3 years ago
11

Find the area of a rectangle whose length is 5x + 7 and whose width is 2x, in terms of x

Mathematics
1 answer:
NikAS [45]3 years ago
7 0

Answer:

A=10x^2+14x

Step-by-step explanation:

A=wL

w=2x

L=5x+7

A=2x(5x+7)

A=10x^2+14x

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Solve (x-3) (x+2) = 0 and x² - 25​
Nookie1986 [14]

Answer:

its 2 x I think u can defirantate

7 0
4 years ago
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Complete the work to simplify the expression (-2d^5)^4
klio [65]

Answer:

16d^20

Step-by-step explanation:

to raise a product to a power, raise each factor to that power. (-2)^4x(d^5)^4

evaluate the power (-2)^4 x (d^5)^4

                                   16 x (d^5)^4

3 0
3 years ago
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Is (0,0) a solution to this system? y ≤ x^2 + x - 4 y < x^2 + 2x + 1
yaroslaw [1]

( 0,0 ) is not the solution of the first inequality y≤x² +x-4 but ( 0,0) is the solution for the second inequality y <x²+2x+1.

<h3>What is inequality?</h3>

The relation between two expressions that are not equal, employing a sign such as ≠ ‘not equal to’, > ‘greater than, or < ‘less than’

Finding the solution for the inequality is as follows:-

y ≤  x² +x-4 by putting x and y equal to 0.

0 ≤ 0 + 0 -4

0 ≤ - 4

This is incorrect so (0,0) can not be the solution for this inequality.

y < x²+2x+1.

0 < 0 + 0 + 1

0 < 1

This inequality is showing the solution for (0,0)

Therefore ( 0,0 ) is not the solution of the first inequality y≤x² +x-4 but ( 0,0) is the solution for the second inequality y <x²+2x+1.

To know more about inequality follow

brainly.com/question/24372553

#SPJ1

5 0
2 years ago
State the range of the numbers displayed in column x and column y. <br>xy <br> 15<br> 27<br>39
Masja [62]

We can not really tell in this question as you dont know the equation that is being used for the domain and range relationship but overall one should know that:

The set of values of the independent variable(s) for which a function or relation is defined as the domain of a function. Typically, this is the set of x-values that give rise to real y-values.

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.

6 0
3 years ago
Simplify 9 - {x-(7 + x)}<br> 16<br> -2x + 16<br> 2x+2<br> 0 - 22+2
zlopas [31]

answer :

<em>16</em>

explanation :

<em>9 - (x - (7 + x))</em>

<em>9 - (x - 7 - x)</em>

<em>9 - (-7)</em>

<em>9 + 7</em>

<em>= 16</em>

8 0
4 years ago
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