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jarptica [38.1K]
2 years ago
11

Mark the focus of the parabola you are going to create at F(6, 4). Draw a horizontal line that is 6 units below the focus. This

line will be the directrix of your parabola. What is the equation of the line?​
Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
8 0

Answer: y=-2

Step-by-step explanation:

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Solve to find side C please
Alex73 [517]

Answer:

c= 18.4

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos theta = a/c

cos 57 = 10/c

Multiply each side by c

c cos 57 =10

Divide each side by cos 57

c = 10/cos 57

c=18.36078459

Rounding to the nearest tenth

c= 18.4

6 0
3 years ago
a triangle pyramid with an equilateral base has a side length of 10 centimeters and a surface area of 214.5 square meters. find
sweet [91]
Area of the base = 1/2 * 10 *  5sqrt3 =  25 sqrt3

Total surface area = 25 sqrt3 + 3 *  1/2 * 10 * slant height = 214.5

25 sqrt3 + 15h = 214.5
15h = 214.5 - 25 sqrt3

h =   (214.5 - 25sqrt3() / 15

=  11.41 cm to nearest hundredth
6 0
3 years ago
Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest
dangina [55]

Answer:

{x}^{2}  - 18x - 21

Step-by-step explanation:

{x}^{2}  + 3 - 6(3x + 4)

{x}^{2}  + 3 - 18x - 24

{x}^{2}  - 21 - 18x

\boxed{\green{=  {x}^{2}  - 18x - 21}}

8 0
2 years ago
Sin pi/12 cos y - sin y cos pi/12
enyata [817]

Answer:

=0.56184

Step-by-step explanation:

5 0
2 years ago
What is the equation of the line passing through the points (2, -1) and (5.-10) in slope-intercept form
vagabundo [1.1K]

Answer:

y = -3x + 5

Step-by-step explanation:

Usually by drawing a simple graph, you can tell what the equation is, even if the graph isn't 100% accurate. From the points alone, you can tell that the slope is negative, since as you increase in x you decrease in y (which is a negative relationship). You can tell that it's +5 rather than -5 because the graph sketched shows that the line goes above 0 (indicating a positive number), rather than below (a negative number).

7 0
3 years ago
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