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Crank
3 years ago
14

Chuck drops a rock from a height of 70 m. How long will it take the rock to hit the ground? Use the formula h(t)=−4.9 t 2 + v o

t+ h o , where v o is the initial velocity and h o is the initial height. Round to the nearest tenth of a second.

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
7 0
That's the best I could do. I hope it helped

storchak [24]3 years ago
7 0

Answer: 3.8

Step-by-step explanation:

your suppose to round (btw do u have the rest of this test answers yet because i need them too)

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A new experimental strain of pepper plants was being studied to estimate how much fruit one plant would produce in a typical gro
zmey [24]

Answer:

58.9% produced produced peppers weighing between 13 and 16 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 15

Standard Deviation, σ = 1.75

We are given that the distribution of weight of peppers is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(peppers weighing between 13 and 16 pounds)

P(13 \leq x \leq 16) = P(\displaystyle\frac{13 - 15}{1.75} \leq z \leq \displaystyle\frac{16-15}{1.75}) = P(-1.142\leq z \leq 0.571)\\\\= P(z \leq 0.571) - P(z < -1.142)\\= 0.716 - 0.127 = 0.589 = 58.9\%

P(13 \leq x \leq 16) = 58.9\%

58.9% produced produced peppers weighing between 13 and 16 pounds.

7 0
3 years ago
What is the value of |5 - 2x |- 13 /8when
ra1l [238]

Answer:

Use a calculator

Step-by-step explanation:

5 0
3 years ago
What's 6/7 written as a fraction with a denominator of 42
uysha [10]
So we are trying to find the numerator of 42 in relation of 6/7.

42 divided by 7= 6    So 6 x 6 from the numerator of 6/7 = 36.

So 6/7 written as a fraction with a denominator of 42 is 36/42.
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3 years ago
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Help me I give brainiest
AlladinOne [14]

Answer:

-4x^{2}y ∛3y

Step-by-step explanation:

6 0
3 years ago
Need help since I failed my exam.​
goldenfox [79]

Answer:

11.2 inches.

Step-by-step explanation:

Applying the tangent/secant theorem:

9^2 = 5(y + 5)

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5y = 56

y = 11.2 in.

6 0
3 years ago
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