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xxTIMURxx [149]
3 years ago
15

Who is good at trigonometry?

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0
I Suppose anyone can be good at trigonometry, all it takes is a willing mind and a good teacher.
You might be interested in
Solve 5x2-2x-8=0 using the quadratic formula.
choli [55]

Answer:

x=\frac{1+\sqrt{41}}{5},\\x=\frac{1-\sqrt{41}}{5}

Step-by-step explanation:

The quadratic formula states that the solutions for a quadratic is standard form ax^2+bx+c are equal to x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}.

In 5x^2-2x-8=0, we can assign the values:

  • a of 5
  • b of -2
  • c of -8

Thus, we have:

x=\frac{-(-2)\pm \sqrt{(-2)^2-4(5)(-8)}}{2(5)},\\x=\frac{2\pm \sqrt{164}}{10},\\\begin{cases}x=\frac{2+ \sqrt{164}}{10}, x=\frac{1}{5}+\frac{\sqrt{41}}{5}=\frac{1+\sqrt{41}}{5}\\x=\frac{2- \sqrt{164}}{10}, x=\frac{1}{5}-\frac{\sqrt{41}}{5}=\frac{1-\sqrt{41}}{5}\end{cases}

6 0
3 years ago
Read 2 more answers
the height of a hat is shaped like a cone is 10 inches. the volume of thw hat is 30(pi) cubic inches. what is the diameter of th
mote1985 [20]

Answer:

3.38pi

Step-by-step explanation:

Using simple math and the equation for finding the volume of a sphere, we can see that by taking the height of 10, and the volume of 30, that with that information we can deduce that the radius of the cone would be 1.69pi. With this information, we know the radius is half of the diameter. Therefore, we multiply 1.69 by 2, to get our end result, 3.36pi

4 0
3 years ago
I have a diameter of 45 in, what is the radius ?
Svetlanka [38]

Answer:

r = 22.5in

Step-by-step explanation:

d = 2r \\ 45 = 2r \\  \frac{45}{2}  =  \frac{2r}{2}  \\ r = 22.5in

5 0
3 years ago
Read 2 more answers
Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of
miss Akunina [59]
So first. You need to convert to y = mx + b form, so to do that, subtract 5x from both sides, and you will have -6y = -5x + 9
Next, you need to divide by -6, and you get y = 5/6x + 1.5
Its good to note that for finding an equation that is perpendicular to that that equation, the slope is the opposite reciprocal. So, for the slope of your new line it is -6/5x.
So slope intercept form is y-y1 = m(x - x1) so to plug that in with the coordinates (-3, 5) you would have y - (-3) = -6/5(x - 5)
Then add the opposite and do the distributive property on the right side of the equation, so its y + 3 = -6/5x + 6
Then you would solve for y so subtract 3 and you end up with:
y = -6/5x + 3
5 0
3 years ago
a light bulb consumes 6300 watt hours in 3 days and 12 hours. how many watt hours does it consume per day
Oksana_A [137]

Answer:

1800 watt hours

Step-by-step explanation:

6300 watt hours in 3 days and 12 hours

3 x 24 = 72 3 days worthof hours

72 + 12 = 84 total hours

6300/84 = 75 watt hours per hour

75 x 24 = 1800 watt hours per day

6 0
3 years ago
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