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olga2289 [7]
2 years ago
15

Whats his mistake and the correct awnser

Mathematics
1 answer:
HACTEHA [7]2 years ago
8 0

Answer:

θ ≈ 35.7°

Step-by-step explanation:

His mistake was in using the wrong trig. ratio

Instead of using cosine he should have used the sine ratio

sinθ = \frac{opposite}{hypotenuse} = \frac{7}{12} , then

θ = sin^{-1} (\frac{7}{12} ) ≈ 35.7° ( to the nearest tenth )

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Find the equation of the line with a slope of 3/4 and passes through (4-2)
Ira Lisetskai [31]

Answer:

y = 3/4x - 5

Step-by-step explanation:

An equation of a line can be written in slope-intercept form:

y = mx + b

where m is the slope and b is the y-intercept.

Let's plug in what we know.

The slope is 3/4.

y = 3/4x + b

To find b, we want to plug in a value that we know is on this line: in this case, I will use the point (4, -2). Plug in the x and y values into the x and y of the standard equation.

-2 = 3/4(4) + b

To find b, multiply the slope and the input of x(4)

-2 = 3 + b

Now, subtract 3 from both sides to isolate b.

-5 = b

Plug this into your standard equation.

y = 3/4x - 5

This is your equation. It has a slope of 3/4, and passes through (4, -2)

Hope this helps!

5 0
2 years ago
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faust18 [17]
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6 0
3 years ago
PLEASE HELP QUICK
taurus [48]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
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if a chocolate cake is divided into six equal and each has 280 calories, how many calories are in the whole cake
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Answer:

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Step-by-step explanation:

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