MATHEMATICS HIGH SCHOOL

27/45=_/5?
2/6=_/3?jjjjjj

Answers

Answer 1

Answer:

Answer:

27/45=3/5

2/6=1/3

Step-by-step explanation:

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Find the equation of this line.
In Bear Creek Bay in July, high tide is at 1:00 pm. The water level at high tide is 7 feet at high tide and 1 foot at low tide. Assuming the next high tide is exactly 12 hours later and the height of the water can be modeled by a cosine curve, find an equation for Bear Creek Bay's water level in July as a function of time (t).
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What is the distance between points (4, -7) and (-5, 9)? Round to the nearest tenth of a unit |____|units

Answers

The correct answer is 18.4. We can use the distance formula to solve this problem.

(x - x)² + (y - y)² = d² Distance formula
(4 + 5)² + (-7 - 9)² = d² Substitute the given values; make sure to always subtract in the same direction (for example, if you had (1, 2) and (3, 4), if you start by subtracting 1 - 3, then subtract 2 - 4 again, not 4 - 2); also remember that when you subtract a negative, you add
9² - 16² = d² Add; remember that when you subtract a positive from a negative, the answer is negative (-7 - 9 = -16), but this doesn't really matter since we're about to square it anyway
81 + 256 = d² Square both numbers; you can use a calculator for this, if you want
337 + d² Add
d = √337 Take the square root of both sides to cancel out the exponent

So, the distance is √337. You can use a calculator to get the estimated answer, which is about 18.4

Hope this helps!

Your answer is -18.4

Hope this helped C;

Determine the area of the regular hexagon

Answers

Answer:To determine the area of a regular hexagon, we need to use the formula:

Area = (3√3 * s^2) / 2

Where:

- s represents the length of one side of the hexagon.

In the given question, the side length of the regular hexagon is not provided. Therefore, we cannot calculate the exact area without that information.

However, if we assume the side length is 7.79 meters, we can substitute it into the formula to find the area:

Area = (3√3 * (7.79)^2) / 2

Area = (3√3 * 60.6641) / 2

Area ≈ 104.434 square meters (rounded to three decimal places).

Again, please note that this answer assumes the side length of the hexagon is 7.79 meters. If the actual side length is different, the area will also be different.

Step-by-step explanation:sorry for this guys meanness he did it to me to

Point c is located at (5, 7) and is reflected in the x-axis. what are the coordinates of point c'? (-5, 7) (5, -7) (-5, -7) (5, 7)

Answers

Final Answer:

Point C's reflection across the x-axis yields coordinates (5, -7). The x-coordinate remains unchanged, while the y-coordinate changes sign, showcasing a fundamental concept in coordinate geometry.

Explanation:

This reflection can be understood as a transformation in which each point on the original figure is flipped over the x-axis to its corresponding point on the reflected figure.

The x-coordinate remains the same because it measures the horizontal distance from the y-axis, which does not change during a reflection across the x-axis. However, the y-coordinate changes sign, as it represents the vertical distance above or below the x-axis.

In summary, to find the coordinates of the reflected point, we change the sign of the y-coordinate of the original point while keeping the x-coordinate unchanged. Thus, the reflected coordinates of point C across the x-axis are (5, -7).

Answers

66x-3
You have to reorder the terms and then collect like terms and you will get ur answer which is 66x-3

63x-3 is the answer

A spin balancer rotates the wheel of a car at 500 revolutions per minute. If the diameter of the wheel is 26 inches, what road speed is being tested?a. 26 rad/s
b. 3.2 rad/s
c. 52 rad/s
d. 81 rad/s

Answers

Answer:

c. 52 rad/s

Step-by-step explanation:

Final question does not correspond with available option. The real question is: What is the angular speed in radians per second?

At first we assume that spin balance rotates at constant rate and convert given angular speed, measured in revolutions per minute, into radians per second:

$\omega = \left(500\,(rev)/(min) \right)\cdot \left(2\pi\,(rad)/(rev) \right)\cdot \left((1)/(60)\,(min)/(sec) \right)$

$\omega \approx 52.360\,(rad)/(s)$

Which corresponds to option C.

The wheel rotates at an angular speed of 52 rad/s and the equivalent road speed is about 39 mph.

To solve this, we need to consider the given spin speed which is 500 revolutions per minute and convert this to rev per second by dividing by 60.

This is because a minute has 60 seconds.

Hence, the wheel rotates at 500/60 = 8.33 rev/s.

Furthermore, we need to know that in physics, one full revolution equals 2π radians (this is the equivalent of going around a circle once).

So, to convert from revolution to radian, we multiply by 2π, so the wheels is spinning at 8.33 * 2π ≈ 52.36 rad/s, which most closely matches option c. 52 rad/s.

Lastly, the linear (or road) speed can be calculated by multiplying the Angular momentum by the radius of the wheel (which is half the diameter), so v = (52.36 rad/s) * (13 in) = 680.68 in/s.

To convert it to mph, note that 1 inch/s = 0.057 mph, hence the wheel is spinning at about 39 mph.

Learn more about Angular momentum here:

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A pair of equations is shown below. x + y = 5
y = one halfx + 2

If the two equations are graphed, at what point do the lines representing the two equations intersect?

(2, 5)
(5, 2)
(2, 3)
(3, 2)

Answers

The correct answer for the question that is being presented above is this one:

x + y = 5

y = one halfx + 2
y = 1/2 x + 2
-1/2 x + y = 2

Eliminate y by subtracting the two equations.
x + y = 5
-1/2 x + y = 2
----------------------
3/2 x = 3
3x = 6
x = 2

x + y = 5
2 + y = 5
y = 5-2
y = 3

So, the answer is (2,3).

Answer:

I am positive the answer is C: (2, 3)

Step-by-step explanation:

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