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Sever21 [200]
4 years ago
14

The focus of a parabola is located at (4,0), and the directrix is located at x = –4.

Mathematics
2 answers:
guapka [62]4 years ago
4 0

Answer: D. y2=16x

Step-by-step explanation:

Tanzania [10]4 years ago
3 0
The distance between the focus and directrix is, in this case, 8. Since the directrix is at x= something, the parabola opens sideways, and since the directrix is on the left, to the right. In which case, y^2=p(x), where p is 4 times distance of half of distance between directrix and focus, so the answer is y^2=16x
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Gavin rolls a fair dice 48 times.<br> How many times would Gavin expect to roll an even number?
pantera1 [17]

Answer: The number of times Gavin expect to roll an even number =24

Step-by-step explanation:

Given: Numbers of a fair dice = 1, 2, 3, 4, 5, 6

even numbers = 2, 4, 6

odd numbers = 1, 3, 5

Probability of getting an even number = \dfrac{3}{6}=\dfrac12

If Gavin rolls a fair dice 48 times.

Then, the number of times Gavin expect to roll an even number = 48\times\dfrac12=24

Hence, the number of times Gavin expect to roll an even number =24

6 0
3 years ago
How do you solve the following problem: is (3,4) a solution to 2x+3y=10?
ale4655 [162]
The answer is C. plug 3 and 4 into the equation and see if it's true.
3 0
3 years ago
Find (fog)(x) when f(x)=x^2-7x+12 and g(x)=3/x^2-16
Kazeer [188]

Answer:

f( \frac{3}{ {x}^{2} - 16 } ) =  ({\frac{3}{ {x}^{2} - 16 }})^{2}  - 7(\frac{3}{ {x}^{2} - 16 }) + 12 \\  =  \frac{9}{ {x}^{4} - 32 {x}^{2}  + 256 }  -  \frac{21}{ {x}^{2}  - 16}  + 12

4 0
3 years ago
Please help with all nor one otherwise you will be reported . Show and explain all your work
Vitek1552 [10]
37. Volume: l×w×h
38. Volume: (pi)r^2×h
39. Volume: (1/2b×h)×l

37. l=4
w=4
h=6

4×4×6
16×6= 96ft^3

38. (pi)=3.14
r=5
h=12

(3.14×5^2)×12
(3.14×25)×12
78.5×12= 942in^3

38. b=4
h=3
l=8

(1/2×3×4)×8
(1/2×12)×8
6×8= 48
7 0
3 years ago
PLZ ONLY TYPE IN SSS , ASA, SAS, AAS, HL) IF<br> the triangles are not congruent, type in NEI
hichkok12 [17]

Answer:

Step-by-step explanation:

the first picture shows that two sides are the same and one angle so you know it's a SAS,    the one tick mark and that the two trialge share one common side is how you know 2 sides are the same,  and the 90 °  corner symbol shows you know an angle in each , that is also the same.

the second picture shows 3 sides the same  so SSS,  the triangles share one side, and have the tick marks, showing that each of the respective sides are the same.  

:)

6 0
3 years ago
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