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Archy [21]
3 years ago
9

What’s is the value of the expression -9 1/2(2.2)

Mathematics
1 answer:
Dvinal [7]3 years ago
3 0

Answer: -20.9

Step-by-step explanation:

-9 1/2 (2 1/5)

convert into improper

-19/9(11/5)

-209/10

-20.9

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Complete each trinomial such that it can be rewritten in the form a(x+b)^2 or a(x-b)^2
scoundrel [369]

The value of the expression  in the form a(x+b)^2 is 1.5(x+2)^2 - 4

<h3>Vertex Form of a quadratic expression</h3>

Given the quadratic expressions

1.5x^2+6x+......

1.5(x^2 + 4x)

Using the completing the square method

The coefficient of x = 4

Half of the coefficient = 4/2 = 2

The square of the result = 2^2 = 4

The equation is expressed as:

f(x) = 1.5(x^2+4x+ 4) - 4

f(x) = 1.5(x+2)^2 - 4

Hence the value of the expression  in the form a(x+b)^2 is 1.5(x+2)^2 - 4

Learn more on completing the square method here: brainly.com/question/1596209

6 0
2 years ago
What is the value of x in this diagram?<br><br><br> Please help
marshall27 [118]
Answer: x=75

Explanation:
x+10+x+20=180
combine like terms
2x+30=180
subtract 30 from each side
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7 0
3 years ago
Calculate the distance between the points K = (1, -1) and P=(9.-6) in the coordinate plane.
GarryVolchara [31]

Answer:

√89

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(9 - 1)² + [-6 - (-1)]²

√(8)² + (-5)²

√64 + 25

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6 0
3 years ago
Which of the following is a solution of y - x &lt; -3?
azamat

Answer:

<h2>x > 3+y</h2>

Step-by-step explanation:

Subtract- y- from- both -sides.\\-x (less than)-3-y\\2 Multiply both sides by -1.\\x (greater than ) 3+y

5 0
4 years ago
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What is the area of a rectangle with length 8 1/2 and width 6 inches
likoan [24]
A = 1/2 (l × w)
A = 1/2 (8 1/2 × 6)
A = 1/2 (17/2 ×12/2)
A = 1/2 (204/4)
A = 1/2 (51)
A = 25 1/2  OR  25.5 in
5 0
3 years ago
Read 2 more answers
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