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Yuki888 [10]
2 years ago
15

The polynomial below is a perfect square trinomial of the form A2 - 2AB + B2.

Mathematics
2 answers:
sertanlavr [38]2 years ago
8 0
Yes the statement is true.
irakobra [83]2 years ago
5 0

Answer:

True

Step-by-step explanation:

Given: 9x^2-30x+25

We have to write the given polynomial in perfect square nominal.

A^2-2AB+B^2

We can factor it like

A^2-2AB+B^2=(A-B)^2

It is perfect square trinomial.

9x^2-30x+25

We have to make perfect square first and last term.

9x^2\rightarrow (3x)^2\rightarrow A

25\rightarrow 5^2\rightarrow B

9x^2-30x+25\Rightarrow (3x)^2-2\cdot 3x\cdot 5+5^2

Hence, The given polynomial is in perfect square trinomial.

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Find the vector and parametric equations for the line through the point P(0, 0, 5) and orthogonal to the plane −1x+3y−3z=1. Vect
yulyashka [42]

Answer:

Note that orthogonal to the plane means perpendicular to the plane.

Step-by-step explanation:

-1x+3y-3z=1 can also be written as -1x+3y-3z=0

The direction vector of the plane -1x+3y-3z-1=0 is (-1,3,-3).

Let us find a point on this  line for which the vector from this point to (0,0,5) is perpendicular to the given line. The point is x-0,y-0 and z-0 respectively

Therefore, the vector equation is given as:

-1(x-0) + 3(y-0) + -3(z-5) = 0

-x + 3y + (-3z+15) = 0

-x + 3y -3z + 15 = 0

Multiply through by - to get a positive x coordinate to give

x - 3y + 3z - 15 = 0

4 0
2 years ago
Which of the following represents the general term for the sequence 1, 3, 5, 7, 9, . . .? n
zalisa [80]

Answer:

Step-by-step explanation:

In the given sequence, the terms are increasing in arithmetic progression. The common difference, d between successive terms is 2

The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + (n - 1)d

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = 1

d = 2

Therefore, the expression for the general term for the sequence is

Tn = 1 + 2(n - 1)

3 0
3 years ago
Please help! :) (Whoever answers first I'll give Brainlest!)
Irina-Kira [14]

Answer:

87

Step-by-step explanation:

Do what's inside the paranethesis first

2+(9*3)=2+27=29

29*3=87

7 0
3 years ago
1. Rachel has a fair pyramid with four faces and a spinner with three equal-sized colored sections. What is the probability that
Masja [62]

Answer:

29%

Step-by-step explanation:

33% - 25% =8%

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Which quadrant point is in (2,5)
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Answer:

Sweets are sold loose, or pre-packed in 120g bags.

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5 0
2 years ago
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