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Alenkasestr [34]
3 years ago
15

A rectangle has a length of 8 and a width of x. Write a variable expression for the perimeter of the rectangle

Mathematics
1 answer:
natta225 [31]3 years ago
7 0
Hi,

Since the perimeter of a rectangle is equal to twice the length plus twice the width, what you want to do here is P = 2(8) + 2(x) = 16 + 2x

Hope this helps! If my answer was not clear enough or you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.
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Is -8 - 2(3+2n)+7n equivalent to -30 - 13n​
soldi70 [24.7K]

Answer:

The terms are not equivalent

Step-by-step explanation:

-8 - 2(3+2n)+7n

Distribute the 2

-8 -6-4n+7n

Combine like terms

-14 +3n

That is not equal to -30 -13n

The terms are not equivalent

4 0
3 years ago
HELP NOW! 20 POINTS!
ELEN [110]
I believe the answer is D.

No, it is not a proportional relationship because the graph does not go through the origin.

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3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description. 2m2 + 3 = m.
Tpy6a [65]

The roots of the equation , 2m^{2}+3=m, are non real roots.

<h3>Discriminants are what?</h3>

The quadratic formula's discriminant is represented by the square root symbol b^{2}-4ac. If there are two solutions, one solution, or none at all, the discriminant informs us.

As of now, 2m²+3=m we need to find the kind of roots they have.

2m²+3=m

2m²-m+3=0

Here, we can derive the following values from the equation:

a = 2, b = -1, c = 3

An equation's discriminant is stated as:

D = b²-4ac

D = (-1)(-1) - 4(2)(3)

D = 1 - 24

D = -23

Discriminant can determine the kind of roots that the equation contains.

In this instance, the discriminant is below 0.

The equation's roots are complex conjugates when D < 0.

Hence the roots for the equation are non real roots.

To get more information about discriminant follow the link:

https://brainly.in/question/27214502

#SPJ4

4 0
1 year ago
Read 2 more answers
Solve for p. i = prt
Andrew [12]

Answer:

p=i/rt

Step-by-step explanation:

its p= i over rt

4 0
3 years ago
Solve the quadratic equation -x^2=4
Alex_Xolod [135]
<span>-x^2=4
x = -2i and x = 2i
-------------------------------</span>
7 0
3 years ago
Read 2 more answers
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