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spin [16.1K]
2 years ago
12

Determine whether each quadrilateral is a parallelogram. Justify your answer.

Mathematics
1 answer:
Lina20 [59]2 years ago
4 0

Answer:

4. Parallelogram

5. Parallelogram

6. Parallelogram

Step-by-step explanation:

  • 4. This is a parallelogram because the longer sides are parallel to each other and the shorter sides are also parallel to each other. Hence, this is a parallelogram.
  • 5. This is a parallelogram because it's angles are the same to the opposite angles. Hence, this is a parallelogram.
  • 6. This is a parallelogram because the longer sides are parallel to each other and the shorter sides are also parallel to each other. Hence, this is a parallelogram.

Hoped this helped.

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Question 9 of 10
Liula [17]

Answer:

D

Step-by-step explanation:

20x + 12 x =14x +30

20x - 14x = 30-12

6x= 18

6x/6 = 18/6

x = 3

so xs =3

7 0
3 years ago
Factor this x^3 + 27
masya89 [10]
(x+3)(x^2-3x+9)

this gets the x^3 while the 3x cancels out and 3*9=27

hope this helps although i didn't explain very well :)
8 0
3 years ago
How can 33/9 be expressed as a decimal 40 point for the best answer
GaryK [48]
33/9=11/3 or 3.666666667
hope this helps!
3 0
3 years ago
Read 2 more answers
I don’t understand the polynomials
Serhud [2]
Polynomial comes from poly- (meaning "many") and -nomial (in this case meaning "term") ... so it says "many terms"

A polynomial can have:

constants (like 3, −20, or ½)
variables (like x and y)
exponents (like the 2 in y2), but only 0, 1, 2, 3, ... etc are allowed
that can be combined using addition, subtraction, multiplication and division ...

... except ...

... not division by a variable (so something like 2/x is right out)

So:

A polynomial can have constants, variables and exponents,
but never division by a variable.

Also they can have one or more terms, but not an infinite number of terms.

These are polynomials:

3x
x − 2
−6y2 − ( 79 )x
3xyz + 3xy2z − 0.1xz − 200y + 0.5
512v5 + 99w5
5
(Yes, "5" is a polynomial, one term is allowed, and it can be just a constant!)



These are not polynomials

3xy-2 is not, because the exponent is "-2" (exponents can only be 0,1,2,...)
2/(x+2) is not, because dividing by a variable is not allowed
1/x is not either
√x is not, because the exponent is "½" (see fractional exponents)


But these are allowed:

x/2 is allowed, because you can divide by a constant
also 3x/8 for the same reason
√2 is allowed, because it is a constant (= 1.4142...etc)
7 0
3 years ago
1Jada made 6 cups of blueberry jam and divided the jam equally among 4 containers. How much jam went in each container? ​I pick
creativ13 [48]

Answer:

That would be 1.5

Step-by-step explanation:

Here it is.

3 0
3 years ago
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