A restaurant tablecloth is 98 inches across. What is the approximate circumference?
1 answer:
<h3><u>Answer:</u></h3>
The circumference of a circle with diameter of 98 in. is about 308 in.
<h3><u>Step-by-step explanation:</u></h3><u>We know the diameter. Using the diameter, we can find the circumference.</u>
- => Diameter = 98 in.
- => Radius = 98/2
- => Radius = 49 in.
<u>Circumference = 2πr</u>
- => 2 x 22/7 x 49
- => 2 x 22 x 7
- => 308 in.
Therefore, the circumference of a circle with diameter of 98 in. is about 308 in.
Hoped this helped.
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Answer:
option 4 ⇒ 236 lb.
Step-by-step explanation:
Best explanation of the question is as shown in the attached figure.
we will use the parallelogram method to calculate resultant force.
to get the length of the resultant force ⇒ use the cosines law
The cosine law is a² = b² + c² - 2 * b * c * cos (∠A)
Applying at the question where b = F₁ , c = F₂ and ∠A = ∠x
Given that F₁ = 100 pounds , F₂ = 150 pounds and ∠x = 180° - 40° = 140°
∴ (Resultant force)² = 100² + 150² - 2 * 100 * 150 * cos (∠140) = 55481
∴ Resultant force = √55481 = 235.54 ≅ 236 pounds
The answer is option 4 ⇒ 236 lb.
Answer:
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