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3 years ago

Does a parallelogram have to have equal sides

Mathematics

2 answers:

Rudik [331]3 years ago

7 0

Answer:

The two shorter sides have to be equal and the two longer sides have to be equal.

Step-by-step explanation:

lbvjy [14]3 years ago

5 0

Answer:

Yes

Step-by-step explanation:

A Parallelogram is a flat shape with opposite sides parallel and equal in length. NOTE: Squares, Rectangles and Rhombuses are all Parallelograms

Hope this helps (:

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How many items must she sell to break even?

nikklg [1K]

Answer:

Step-by-step explanation:

We have two simultaneous equations.

(1) y = 2x + 50

(2) y = 4.5x

1. Subtract (1) from (2)

0 = 2.5x - 50

2. Add 50 to each side

2.5x = 50

3. Divide each side by 2.5

x = 20

Pilar must sell 20 items to break even.

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3 years ago

Find the sum of the arithmetic sequence. 5, 7, 9, 11, ..., 23

katen-ka-za [31]

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3 years ago

Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat

Salsk061 [2.6K]

Answer: In June 2097

Step-by-step explanation:

According to the model, to find how many years t should take for $P(t)=21100$ we must solve the equation $0.9t^2+6t+14000=21100$ . Substracting 21100 from both sides, this equation is equivalent to $0.9t^2+6t-7100=0$ .

Using the quadratic formula, the solutions are $t_1= \frac{-6-\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=-92.21$ and $t_2=\frac{-6+\sqrt{6^2 -4*0.9*(-7100)}}{2*0.9}=85.54$ . The solution $t_1=-92.21$ can be neglected as the time t is a nonnegative number, therefore $t=t_2=85.54$ .

The value of t is approximately 85 and a half years and the initial time of this model is the January 1, 2012. Adding 85 years to the initial time gives the date January 2097, and finally adding the remaining half year (six months) we conclude that the date is June 2097.

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3 years ago

Which function has real zeros at x = –8 and x = 5?

Tcecarenko [31]

Answer:

option B is the answer . thank me later , you guys are lame

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3 years ago

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