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2 years ago

Helppppp pleaseeee!!!!!!

Mathematics

1 answer:

maks197457 [2]2 years ago

5 0

I got 3.825

your equation would be
(2x-1)(x+7)=72

when you distribute youd get
2x^2 +13x -7 =72

move the 72 over giving you
2x^2 +13x -79=0

i used the quadratic formula and the answer would be 3.825 because a negative answer wouldn’t make sense in this situation

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3 years ago

The Niagara Falls ferris wheel has a diameter of 48 meters, and one revolution takes 2.25 minutes to complete. Riders can see Ni

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<h3>How to interpret Cycle Graphs?</h3>

From the diagram attached, we can say that;

Period = 2π/k

where;

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Thus;

h(t) = -(48/2) cos (8π/9)t + ((48/2) + 0.5)

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Riders can see Niagara falls if they are higher than 41 meters above the ground. Thus;

41 = -24cos (8π/9)t + 24.5

41 - 24.5 = -24cos (8π/9)t

16.5 = -24cos (8π/9)t

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cos⁻¹0.6875 = (8π/9)t

t = 0.834 min

Thus, time interval is between;

0.834 < t < (2.25 - 0.834)

⇒ 0.834 < t < 1.416 and

(2.25 + 0.834) < t < (2.25 + 1.416)

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Read more about Cycle Graphs at; brainly.com/question/24461724

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2 years ago

Consider a continuous random variable x, which is uniformly distributed between 65 and 85. The probability of x taking on a valu

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1/20 = P(y).

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P(75 to 85) = (1/20)*(85 - 75) = 10/20 = 0.5

And the probability between 85 and 90 is zero (because the maximum value that x can take is 85, so this part does not affect).

Then we conclude that the probability of x taking a value between 75 to 90 is:

P(75 to 90) = P(75 to 85) + P(85 to 90) = 0.5 + 0 = 0.5

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1 year ago

Simplify the expression 11x − (2x2 + 8x).

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3 years ago

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we get the all equation of given condition $M = 2P+1$ & $P=2M+1$ Step-by-step explanation:

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we have to check all the apply.

According to question,

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So, Relation formed by given statement is $M =2P$

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3 years ago