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Inga [223]
3 years ago
13

Problems of the Week (P.O.W.)

Mathematics
1 answer:
ladessa [460]3 years ago
4 0

Answer:

Each pencil cost $0.51

Step-by-step explanation:

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Choose the best definition for the following phrase: combining like terms
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I'm assuming you are talking about polynomials.

For example, I have x^2 + 2x + 1, and I want to add 2x^2 + x + 2

Then the like terms here are:

x^2 and 2x^2,  2x and x, 1 and 2, they are quadratic, linear and constant, respectively.
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3 years ago
please check my answer. the perimeter of the triangle shown is 18 cm. what is the measure of the third side? i need help asap!!
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The answer is 3 cm. You just have to add the sides you know (6 and 8) and subtract that from the perimeter (18)
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3 years ago
What is the range of the function on the graph?
STALIN [3.7K]

Answer:

the answer is D. all real numbers greater than or equal to 2.

Step-by-step explanation:

looking at the graph, half of a parabola is curved upwards, and will never stop going up. looking at (1, 2), the dot (instead of circle) indicates the range is greater than or equal to itself, which is 2.

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3 years ago
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Which ordered pair is a solution of the equations y=-5/4x-2
sashaice [31]
The answer is C. That would be ur answer
5 0
2 years ago
Let T:R²->R² be a linear transformation ,and assume that T (1,2)=(-1,1) and T(1,-1)=(2,3)
zavuch27 [327]

Answer:

(-4,-1)

Step-by-step explanation:

We are given T(1,2)=(-1,1) and T(1,-1)=(2,3) and T is a linear transformation.

This implies for scalars a and b that

T(a(1,2)+b(-1,1))=aT(1,2)+bT(-1,1)

T((a,2a)+(-b,b))=a(-1,1)+b(2,3)

T((a-b,2a+b))=(-a,a)+(2b,3b)

T((a-b,2a+b))=(-a+2b,a+3b)

This means we should be able to solve the system below to find a and b for T(3,3):

a-b=3 and 2a+b=3

Add equations to eliminate b and solve for a:

3a=6

Divide 3 on both sides:

a=2

If a-b=3 and a=2, then b=-1.

Plug in a=2, b=-1:

T((a-b,2a+b))=(-a+2b,a+3b)

T((2--1,2×2+-1)=(-2+2×-1,2+3×-1)

T(3,3)=(-4,-1).

4 0
2 years ago
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