Hey there! :)
Answer:
1124.8 J.
Step-by-step explanation:
Given:
Distance: 25 meters.
Force: 70 N.
Direction: 50° with the horizontal.
Start by calculating the magnitude of the vector:
cos (50) = |x| / 70
70 · cos (50) = |x|
Solve:
44.99 ≈ |x|
This is the magnitude. To calculate the amount of work done, simply multiply by the distance she pushed the wheelbarrow:
44.99 × 25 ≈ 1124.8 J.
Answer:
(-2, -8)
x = -2
y = -8
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define systems</u>
13x - 6y = 22
x = y + 6
<u>Step 2: Solve for </u><em><u>y</u></em>
<em>Substitution</em>
- Substitute in <em>x</em>: 13(y + 6) - 6y = 22
- Distribute 13: 13y + 78 - 6y = 22
- Combine like terms: 7y + 78 = 22
- Isolate <em>y</em> term: 7y = -56
- Isolate <em>y</em>: y = -8
<u>Step 3: Solve for </u><em><u>x</u></em>
- Define original equation: x = y + 6
- Substitute in <em>y</em>: x = -8 + 6
- Add: x = -2
Answer:
DO NOT CHEAT
Step-by-step explanation:
IT'S HARAM >:(
-0.66666666 is the answer
Answer:
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Step-by-step explanation:
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