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Airida [17]
4 years ago
15

Show me how to do the steps to solve this math problem: Tom has a can of paint that covers 37 1/2 square meters.Each board on th

e fence had an area of 3/16 meters . How many boards can he paint?
Mathematics
1 answer:
ki77a [65]4 years ago
8 0
He can paint 200 boards
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Vector upper a overscript right-arrow endscripts has a magnitude of 69 units and points due west, while vector upper b overscrip
Tom [10]
Refer to the figure below.

Define unit vectors as follows:
\hat{i} in the eastern direction
\hat{j} in the northern direction

Given:
Vectors a and b point due west and south respectively. Therefore
\vec{a} = -69 \ht{i} \\
\vec{b} = -69\hat{j}

Part (a)
\vec{a}+\vec{b}=-69\hat{i}-69\hat{j}=-69(\hat{i}+\hat{j})
The magnitude is
|-69(√[1² + 1²])| = 69√2 = 97.58.
The direction relative to west is
θ = tan⁻¹ (b/a) = tan⁻¹ 1 = 45°  south of west

Answer:
The magnitude of (a + b) is 97.58 or 69√2.
The direction is 45° south of west.

Part (b).
\vec{a} - \vec{b} = -69\hat{i}+69\hat{j}=-69(\hat{i} -\hat{j})
The magnitude is
|69(√(1+1)| = 69√2 = 97.58.
The direction relative to west is
tan⁻¹ (b/a) = 45° north of west.

Answer:
The magnitude of (a-b) is 97.58 or 69√2.
The direction is 45° north of west.

7 0
3 years ago
Which mapping diagram represents a relationship that is a function?
Georgia [21]
Mapping A would be the one
3 0
3 years ago
Heidi is designing a two-lane running track for an athletic club the track will go around a regtangle that will have an area of
solong [7]

Answer:

i was asking the same question srry ion know adyyy daddy

Step-by-step explanation:

7 0
3 years ago
If 7m-3=53, what is the value of 11m+2
Anarel [89]
If 7m-3=53, them 7m=53+3
7m = 56, so m = 8.

Plug this into the other equation, 11m+2.
11(8) + 2 = 88 + 2 = 90

3 0
4 years ago
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Last question for the day.. can anyone help wit #14 and either #10-13
masha68 [24]
10. (5,8)(-3,7)
      slope = (7 - 8) / (-3 - 5) = -1 / -8 = 1/8

11. (5,-2)(3,-2)...since both y values are the same, this line is a horizontal line with a 0 slope.

12. (-4,7)(8,-1)
      slope = (-1 - 7) / (8 - (-4) = -8 / (8 + 4) = -8/12 = - 2/3

13. (6,-3)(6,4)....since both x values are the same, this line is a vertical line with a slope that is undefined

14. -2/5
3 0
4 years ago
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