3 years ago

The bridge problem how can the group cross the bridge in 17 minutes

1 answer:

3 0

Bridge crossing in 17 minutes with Torch. The bridge is weak and only able to carry the weight of two of them at a time. Because they are in a rush and the light is fading they must cross in the minimum time possible and must carry a torch (flashlight,) on each crossing.

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Solve the equation 2x^3-5x^2+x+2=0 given that 2 is a zero of f(x)= 2x^3-5x^2+x+2

zalisa [80]

The polynomial equation $2x^{3} - 5 x^{2} + x + 2 = 0$ given that 2 is zero of

f(x) = $2x^{3} - 5 x^{2} + x +2$

According to the question,

f(x) $=2x^{3} - 5 x^{2} + x + 2$

$f(2)= 2(2)^{3} - 5 (2)^{2} + 2 + 2 \\= 2(8) - 5(4) +4\\= 16 - 20 + 4\\= -4 + 4\\= 0.$

Hence, the polynomial equation $2x^{3} - 5 x^{2} + x + 2 = 0$ given that 2 is zero of f(x) $=2x^{3} - 5 x^{2} + x + 2$ .

Learn more about polynomial equation here

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2 years ago

What was the first step in Ghana’s independence? Kwame Nkrumah became the prime minister. A military coup seized power in the co

Anna35 [415]

Answer:

Step-by-step explanation:

The Africans gained a majority in the Parliament

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3 years ago

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Violet wants to find the best time to try to sell vacation plans in a kiosk near the food court. Which statement best describes

Svetlanka [38]

Summer because you normal have a vacation in the summer

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3 years ago

The wind is blowing N 35.0 degrees W at 1.60 * 10^2 mph. A plane has an engine speed of 3.20 * 10^2 mph. Where should the pilot

andreyandreev [35.5K]

Answer: 24.2° SouthWest

Step-by-step explanation:

First step: DRAW A PICTURE of the vectors from head to tail (see image)

I created a perpendicular from the resultant vector to the vertex of the given vectors so I could use Pythagorean Theorem to find the length of the perpendicular. Then I used that value to find the angle of the plane.

Perpendicular (x):

cos 35° = adjacent/hypotenuse

cos 35° = x/160

→ x = 160 cos 35°

Angle (θ):

sin θ = opposite/hypotenuse

sin θ = x/320

sin θ = 160 cos 35°/320

θ = arcsin (160 cos 35°/320)

θ = 24.2°

Direction is down (south) and left (west)

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3 years ago

What is the domain of the functionf(x)=x+1/x^2-6x+8 ? all real numbers all real numbers except –1 all real numbers except –4 and

Vaselesa [24]

I assume you mean f(x) = (x+1) / (x^2 - 6x + 8)

Then f(x) = (x+1)/ (x-2)(x-4)

So the domain will be all real numbers except 2 and 4

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