Use synthetic division to check -4 is a root of the polynomial expression: x^4+2x^3-9x^2-2x+8=f(x)
Answers
........|x^4|x^3|x^2|x^1|x^0
........| 1..|.2...|.-9.|.-2.|.8
x=-3.| ....|.-4..|.8..|.4..|.-8
........| 1..|.-2..|.-1.|..2.|.0
x^4+2x^3-9x^2-2x+8=(x+3)(x^3-2x^2-x+2)+0
-4 is a root of the polynomial expression.
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Log3 27=3x+6 solve this please
Answers
1/20 converted to a decimal is 1 divided by 20
you divide the numerator by the denominator
2. (5x^2 + 3x - 4) (x^2 - 6x )
please show work
Answers
3x^1 + 8 - 2x^2 - 1....now combine like terms
-2x^2 + 3x^1 + 7
2. 5x^2 + 3x - 4 - (x^2 - 6x)...same thing..distribute
5x^2 + 3x - 4 - x^2 + 6x...combine like terms
4x^2 + 9x - 4
Answers
The coordinate for the image of point H( -1, -5) under a 90° clockwise rotation about the origin is, (- 5, 1)
What is Coordinates?
A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
The coordinate of the point H( -1, -5)
Now, The rule for the 90° clockwise rotation about the origin is,
(x, y) = (y, - x)
Hence, The coordinate for the image of point H( -1, -5) under a 90° clockwise rotation about the origin is,
(- 1, - 5) = (- 5, 1)
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6 and y = 10?
10x - 5y
Answers
Answer: 10
Step-by-step explanation: Because 10times X when X=6 is 60 then 5 times Y when Y=10 makes it 50 then subtract the two numbers
60-50=10
Final answer:
The value of the expression 10x - 5y when x = 6 and y = 10 is 10.
Explanation:
The expression given is 10x - 5y. We are asked to determine the value of this expression when x = 6 and y = 10. To do this, we replace x and y in the expression with these given values:
10*6 - 5*10 = 60 - 50 = 10
So, when x = 6 and y = 10, the value of the expression 10x - 5y is 10.
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Answers
Step-by-step explanation:
Answer:
p(m - n) = x
Step-by-step explanation:
You want to "solve for x." To do this, subtract n from both sides (for the purpose of isolating the x/p term):
m - n + x/p
Next, multiply all terms by p:
p(m - n) = x
Answers
Width=W
Length=2W-1
The equation is as follows
W(2W-1)=21
Subtract 21 from each side
Group them/put them in parentheses..can't think of the right word right now
(2W-7)(W+3)
-7=I7I
You only do this for the first parenthese, 7÷2W=3.5
W=3.5
If W=3.5 then 2W-1⇒2×3.5-1⇒7-1⇒6
Length=6
If W=3.5 and L=6, then W(2W-1)=21
3.5(2×3.5-1)=21
Solve in parentheses first
3.5(7-1)=21
3.5(6)=21
3.5×6=21
The width is 3.5
The length is 6