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aleksley [76]
2 years ago
14

Find the value of x.

Mathematics
2 answers:
boyakko [2]2 years ago
6 0

Answer:

70.86 degrees

Step-by-step explanation:

cos x = adjacent side / hypotenuse

= 2/6.1 = 0.32787

x = 70.86.

DedPeter [7]2 years ago
6 0

Answer:

x ≈ 70.9°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos x = \frac{adjacent}{hypotenuse} = \frac{2}{6.1} , then

x = cos^{-1} (\frac{2}{6.1} ) ≈ 70.9° ( to 1 dec. place )

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First, we need to get the slope of the equation of the train tracks. We can transform the given equation into the slope-intercept form.
4x +2y = 16
y = -2x +8

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So, the slope of the line of the train crossing is 2. Since, it will pass through the point (8,15), the slope-intercept form can also be used to solve for the equation.
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The slope is 2, so m=2. We solve b by substituting the coordinates.
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b = -11

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7 0
3 years ago
A bag contains 7 red, 3 green, 4 blue, and 6 yellow marbles. Find the probability of randomly selecting a red marble three times
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B

Step-by-step explanation:

8 0
3 years ago
Zucchini weights are approximately normally distributed with mean 0.8 pound and standard deviation 0.25 pound. Which of the foll
Charra [1.4K]

Answer:

0.81859

Step-by-step explanation:

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where

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For x = 0.55 pound

z = 0.55 - 0.8/0.25

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Probability -value from Z-Table:

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For x = 1.3 pounds

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Probability value from Z-Table:

P(x = 1.3) = 0.97725

The probability that a randomly selected zucchini will weigh between 0.55 pound and 1.3 pounds is

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6 0
3 years ago
Consider a solid spherical ball made of wood. Suppose a hole is bored (drilled) vertically through the center of the ball and th
lbvjy [14]

Answer:

The volume of solid is 268.08 inches cube.

Step-by-step explanation:

The solid spherical ball has height 8 inches that means the diameter of the sphere is 8 inches. So, the radius will be the half of diameter. Thus, radius is 4 inches.

Now use below formula to find the volume of solid sphere.

Volume = \frac{4}{3}\pi r^{2} \\Volume = \frac{4}{3}\pi (4)^{2} \\Volume = 268.08 \ in^{3}

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5 0
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Algebra help pls <3
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B is right:
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