Mathematics, 22.03.2021 19:30 Rubendelarosa1529
8. A town launches fireworks from a boat on the river to celebrate
New Year's Day. The height of the fireworks above ground in
meters can be represented by the function
f(t) = -4.9t^2 + 39.2t + 1.6. If t represents the time in seconds,
what is the maximum height the fireworks will reach?
Record your answer and fill in the bubbles on your
answer document.
Answers: 1
Mathematics, 21.06.2019 16:40, lauramount
According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units
Answers: 1
Mathematics, 21.06.2019 22:00, makenziehook8
Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4
Answers: 2
Mathematics, 22.06.2019 00:20, ashtonviceoxd21i
Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8×10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8×10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?
Answers: 1
8. A town launches fireworks from a boat on the river to celebrate
New Year's Day. The height of th...
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