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Mice21 [21]
3 years ago
5

how much gravity is done by a workman carrying a 8kg sheet plywood up a 3m ramp inclined at an angle of 20 degrees to the horizo

ntal?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0
Work is force times distance. Note that the only work done here is in the direction opposed to gravity, or if you prefer the change in height times the weight...

W=3sin20(8*9.8)

W≈80.44 J
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What is the value of p?
Misha Larkins [42]

Answer:

D. 43°

Step-by-step explanation:

interior angle to 90°=90°

interior angle to 133°=47°

p=180°-47°-90°=43°

please mark as brainliest

7 0
3 years ago
Kevin is 3 years older than brendon two years ago Kevin was 4 times as old as brendon . How old is Kevin now
Tpy6a [65]

Answer:

  Kevin is 6

Step-by-step explanation:

Let k represent Kevin's age now. Then Brendon's age now is (k-3). Two years ago the relationship of their ages was ...

  k-2 = 4((k-3) -2)

  k -2 = 4k -20 . . . . . eliminate parentheses, collect terms

  3k = 18 . . . . . . . . . . add 20-k

  k = 6 . . . . . . . . . . . . divide by 3

Kevin is 6 now.

4 0
3 years ago
5) Naomi is sewing some clothing. She has 53 yards of fabric to use. She
EleoNora [17]

The inequality that represents the number of each type of fabric that Naomi has is:

9x+16y \leq 53

Let the number of short-sleeved shirts she made be x

Let the number of long-sleeved shirts she made be y

Length of clothes used to make a short-sleeved shirt = 9 yards

Length of clothes used to make a long-sleeved shirt = 16 yards

Length of short-sleeved shirts made = 9x

Length of long-sleeved shirts made = 16y

Total length of fabric used = 53 yards

The inequality that represents the number of each type of fabric that Naomi has is:

9x+16y \leq 53

Learn more on inequality here: brainly.com/question/15269537

6 0
2 years ago
Write the equation of the line that has the indicated slope and contains the indicated point. Express the final equation in stan
OlgaM077 [116]

Answer:

y = 1/2x + 5

Step-by-step explanation:

Given :

Slope, m = 1/2

(x1, y1) = (6, 8)

y - y1 = m(x - x1)

y - 8 = 1/2(x - 6)

y - 8 = 1/2x - 3

y - 8 + 8 = 1/2x - 3 + 8

y = 1/2x + 5

Stamdard form of equation :

y = mx + c

Hence, equation is :

y = 1/2x + 5

7 0
3 years ago
Can someone help me with this math homework please!
statuscvo [17]

Answer:

1 = Input G

2 = Input F

3 = Input H

Step-by-step explanation:

5 0
3 years ago
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