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Luda [366]
2 years ago
8

The ratio of the number of red marbles to the number of green marbles in a bag is 2:3 the ratio of the number of green marbles t

o the number of blue marbles is 9:4 there are 76 marbles in a bag
Mathematics
1 answer:
disa [49]2 years ago
7 0

Answer:

There are 36 green marbles, 24 red marbles and 16 blue marbles.

Step-by-step explanation:

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Find the standard form of the equation of the parabola with a focus at (-2, 0) and a directrix at x = 2.
Leokris [45]
Standard form is, hold a sec

x=2 is directix
that means it opens left or right
so we must use
(y-k)²=4p(x-h)
where vertex is (h,k) and p is distance from focus to vertex
also shortest distance from vertex to directix
the shortest distance from focus to directix is 2p
if p>0 then the parabola opens right
if p<0 then pareabola opens left

so
(-2,0) and x=2
the distance is 4
4/2=2
p=2
wait, positive or negative
focus is to the left of the directix so p is negative
p=-2

vertex is 2 to the right of the focus and 2 to the left of directix
vertex is (0,0)

so
(y-0)²=4(-2)(x-0) or
y²=-8x is da equation
not sure what form is standard tho
4 0
2 years ago
PLEASE HELP ASAPPP!!!!
Mashutka [201]

Answer:

\sqrt{(\frac{9c^{16} }{d^{4} })^{3}   }=\frac{9c^{16} }{d^{4} } \sqrt{\frac{9c^{16}}{d^{4}} } \\\\=  \frac{9c^{16} }{d^{4} }.\frac{3c^{8} }{d^{2} }=\frac{27c^{24} }{d^{6} }

=> Amelia's answer is incorrect

Step-by-step explanation:

8 0
2 years ago
The current i in ameperes at time t in a particular circuit is given by i=12 sin 5 cos t find the maximum current​
Mariulka [41]

Answer:

fart

Step-by-step explanation:

6 0
3 years ago
Find (f×g)(x) when f(x)=x^2+8x+15 and g(x)=5 over x^2-9
Kipish [7]
Look at the picture......

5 0
3 years ago
A quadrilateral has its interior angles X, 47, 95, 82. Find<br>the value of x​
Oksana_A [137]

Answer:

x=136

Step-by-step explanation:

To find the measure of the sum of the interior angles use the formula (n-2) times 180 where n is the number of sides.

A quadrilateral has 4 sides. (4-2) times 180. 2 times 180=360

The sum of the interior angles of a quadrilateral is 360.

x+47+95+82=360

x+ 224 = 360

x= 136

5 0
2 years ago
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