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3 years ago

Find the distance traveled in 35 seconds by an object traveling at a velocity of v(t) = 20 + 5cos(t) feet per second

1 answer:

8 0

$s(t)= \int\limits^{35}_0 {v(t)} \, dt \\ =\int\limits^{35}_0 {(20+5cos(t))} \, dt \\ =[20t+5sin(t)]^{35}_0 \\ =(20(35)+5sin(35))-(20(0)+5sin(0)) \\ =700+2.868=702.868 \, feet$

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I need help with #2 and 4 please help me T^T

pav-90 [236]

Answer:

2. w = -90

4. b = 8

Step-by-step explanation:

Multiply both sides by the reciprocal of the number multiplying the variable.

$-\dfrac{2}{3}w = 60$

$-\dfrac{3}{2} \times (-\dfrac{2}{3}w) = -\dfrac{3}{2} \times 60$

$w = -\dfrac{180}{2}$

$w = -90$

$9.6 = 1.2b$

$\dfrac{1}{1.2} \times 9.6 = \dfrac{1}{1.2} \times 1.2b$

$8 = b$

$b = 8$

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antiseptic1488 [7]

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2 years ago

There are 20 people in a room. If every person shakes hands with every other person, how many handshakes will there be altogethe

just olya [345]

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Tanya [424]

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