Solve 9x2 + 12x + 4 = 0. By using the quadratic formula
Answers
so the quadratic formulat is (-b+/-(squrt(b^2-4ac)))/(2a)=x
subsitute
ax^2+bx+c=
9=a
12=b
4=c
(-12+/-(squrt(12^2-4(9)(4))))/(2(9))=x
(-12+/-(squrt(144^2-144)))/18)=x
(-12+/-0)/18)=x
-12/18=x
-2/3=x
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Field had shape of rectangle since has difference in length and width. The perimeter of rectangle can be expressed as:
P = 2 × (a + b)
If:
a = 100 m
b = 70 m
Then
P = 2 × (100 m + 70 m)
P = 2 × 170 m
P = 340 m.
If posts are on every 5 m, the number of needed posts is:
340 m ÷ 5 m = 68.
Thus, 68 posts are needed for the fence.
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speed * time = distance
speed = distance divided by time
His speed = 1.3/10 = 0.13 km/h
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Answer:
HI,
Answer A
Step-by-step explanation:
Final answer:
The rectangle has a length s - 6 and width s + 8 in terms of the side length s of the square.
Explanation:
The length of the sides of a square is s inches. The rectangle is six inches shorter and eight inches wider than the square. To express the length and width of the rectangle as a function of the side of the square:
Length of the rectangle = Length of the square - 6 = s - 6
Width of the rectangle = Width of the square + 8 = s + 8
Therefore, the correct expression for the length and width of the rectangle is: a) Rectangle width is s + 8 and length is s - 6
Learn more about Expressing rectangle dimensions as a function of square side length here:
#SPJ11
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Answer:
x² + x + 5
Step-by-step explanation:
Using Synthetic division
- 5 | 1 6 10 25
↓ - 5 - 5 - 25
-----------------------
1 1 5 0 ← remainder
Since the remainder is zero then (x + 5) is a factor of the polynomial
The Quotient = x² + x + 5
Thus
x³ + 6x² + 10x + 25 = (x + 5)(x² + x + 5)
Answers
x*1.11=21386, solve for x