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Nutka1998 [239]
3 years ago
9

An algebraic expression for the sum of a number and 8

Mathematics
1 answer:
Monica [59]3 years ago
4 0

Answer:

x + 8

Step-by-step explanation:

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mylen [45]
What ??????? !.9:9..jdkKzksoq
3 0
2 years ago
A rectangular plot of land that contains 1500 square meters will be fenced and divided into two equal portions by an additional
photoshop1234 [79]
Let the length be x and the width be w

The perimeter will be:
2x+3w=1500

thus
3w=(1500-2x)
w=(1500-2x)/3
w=500-2/3x

The area will be:
A=x*w
A=x(500-2/3x)
A=500x-(2/3)x²

The above is a quadratic equation; thus finding the axis of symmetry we will evaluate for the value of x that will give us maximum area.

Axis of symmetry:
x=-b/(2a)
from our equation:
a=(-2/3) and b=500
thus
x=-500/[2(-2/3)]
x=375
the length will be 375 m

The width will be 250 m

4 0
3 years ago
What is (4x-3)(7x+6)?
professor190 [17]

Answer:

28x^2+3x-18

Step-by-step explanation:

Formula: (a+b)(a+b) = a^2 + a*b + a*b + b*b

Following this: 28x^2 -21x +24x -18

Then you combine like terms: 28^2 +3x-18

hope this helped!! :)

4 0
2 years ago
Read 2 more answers
Help me on this question
lora16 [44]
It's simple, just subtract 3 from 6 because the have the same terms and variables then keep your answer as it should be. you should get 4b³c²+3b²c³
6 0
3 years ago
Does the graph of <br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20-%20x2%20%2B%202x%20%2B%203" id="TexFormula1" title=
ch4aika [34]

Answer:

it can have both depending if it goes up or down

Step-by-step explanation:

6 0
3 years ago
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