Answer:
432 ft^2
Step-by-step explanation:
Answer:
432
Step-by-step explanation:
Lets plug it into the formula
b1 should be the horizontal line on the bottom horizontal line and b2 should be the top horizontal line
so we get b1 = 28 and b2 = 20
according to the formula we should add b1 and b2, getting us 48.
divide 48 by 2: we get 24
24 times h, or the hieght, or 18 is 432
so the answer is 432
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() 4x + 1
() 4x2
() 4x + 2
() 4% = 1
first answer: -4x-1
.............
Answer:
-4×-1
Step-by-step explanation:
and the point P(-3,6) and then answer the following questions:
a. How would you find the line (B) that passes through point P and is perpendicular to line A? What is the equation of that line?
b. How would you find the length of the segment of line B from point P to line A?
c. How would you find the midpoint between point P and the intersection of line A and line B ?
Answer:
Step-by-step explanation:
a. The slope of the perpendicular line is the negative reciprocal of the slope of the given line, so is ...
m = -1/(5/6) = -6/5
Then the point-slope form of the desired line through (-3, 6) can be written as ...
y = m(x -h) +k . . . . . line with slope m through (h, k)
y = (-6/5)(x +3) +6
y = -6/5x +12/5 . . . equation of line B
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b. The distance from point P to the intersection point (X) can be found from the formula for the distance from a point to a line.
When the line's equation is written in general form, ax+by+c=0, the distance from point (x, y) to the line is ...
d = |ax +by +c|/√(a² +b²)
The equation of line A can be written in general form as ...
y = 5/6x -5/2
6y = 5x -15
5x -6y -15 = 0
Then the distance from P to the line is ...
d = |5(-3) -6(6) -15|/√(5² +(-6)²) = 66/√61
The length of segment PX is (66√61)/61.
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c. To find the midpoint, we need to know the point of intersection, X. We find that by solving the simultaneous equations ...
y = 5/6x -5/2
y = -6/5x +12/5
Equating y-values gives ...
5/6x -5/2 = -6/5x +12/5
Adding 6/5x +5/2 gives ...
x(5/6+6/5) = 12/5 +5/2
x(61/30) = 49/10
x = (49/10)(30/61) = 147/61
y = 5/6(147/61) -5/2 = -30/61
Then the point of intersection of the lines is X = (147/61, -30/61).
So, the midpoint of PX is ...
M = (P +X)/2
M = ((-3, 6) +(147/61, -30/61))/2
M = (-18/61, 168/61)
To find line B perpendicular to line A and pass through point P, calculate the negative reciprocal of line A's slope and use it in the line equation along with point P coordinates to find c. The segment length from point P to line A is calculated using the distance formula and involves finding the intersection point between lines A and B. The midpoint is calculated using the midpoint formula.
To answer this question, we need to understand that two lines are perpendicular if the product of their slopes is -1. Line A has a slope of 5/6. Therefore, the slope of line B, perpendicular to line A, is -6/5 (the negative reciprocal). The equation of a line is y = mx + c where m is the slope and c is the y-intercept. As line B passes through point P(-3,6), we can substitute these values into the line equation y = -6/5x + c to solve for c. This will give us the equation of line B.
To find the length of the segment from point P to Line A, we would first need to find the intersection point of Line A and B. Then use the distance formula, which is sqrt[(x2-x1)^2 + (y2-y1)^2].
The midpoint of two points, (x1,y1) and (x2,y2) is given by ((x1+x2)/2, (y1+y2)/2). This formula can be used to find the midpoint between point P and the intersection of line A and line B.
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Answer:
x = 11 or x = -4
Step-by-step explanation:
x² - 7x - 34 = 10
Subtract 10 from both sides.
x² - 7x - 44 = 10
Factor the trinominal. We need 2 numbers whose product is -44 and whose sum is -7. They are -11 and 4.
(x - 11)(x + 4) = 0
x - 11 = 0 or x + 4 = 9
x = 11 or x = -4
5x – 8
6x – 1
8x + 5
Answer: The answer is (B) and (C) .
Step-by-step explanation: The given polynomial is
We are to select the correct option that could be a factor of the polynomial f(x) according to the Rational Root Theorem.
The Rational Root Theorem states that:
If the polynomial has any rational roots, then they must be of the form
Factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 and factors of 8 are 1, 2, 4 and 8.
Out of the given options, only and can be written in the form , because
Thus, (B) and (C) are the correct options.
The figures in each pair are similar. Find the missing length.
Answer:y=3 1/8
Step-by-step explanation: