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suter [353]
3 years ago
7

Which of these phrases contain a variable? Check all that apply.

Mathematics
2 answers:
Alenkinab [10]3 years ago
6 0
The length of the hallway

The weight of the wombat
kaheart [24]3 years ago
4 0

Answer:

The length of the hall way

the weight of the wombat

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if 3/5 of the wall is made from brick how do you determine the height of the brick portion of the wall
photoshop1234 [79]
Try dividing the surface area of the wall by 6.
6 0
3 years ago
Which value of c will make the equation true?
sweet-ann [11.9K]

Answer:

A

Step-by-step explanation:

44 - 15 =29

3 0
3 years ago
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
How long have the nashville predators been a team?
olganol [36]
This is the Internet. It's really easy to look up.

3 0
3 years ago
Using the equation x squared minus c equals 0 , what value of c has 9 and -9 as solutions.
Svetach [21]

9514 1404 393

Answer:

  c = 81

Step-by-step explanation:

The equation x² -c = 0 can be factored as ...

  (x -√c)(x +√c) = 0

which has roots ±√c.

The roots are given as ±9, so we have ...

  ±9 = ±√c

  c = (±9)² = 81

The value c = 81 makes the equation have ±9 as solutions.

3 0
2 years ago
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