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Karo-lina-s [1.5K]
3 years ago
9

If x varies directly as y and x= 18 when y =3 find x when y=7

Mathematics
1 answer:
denpristay [2]3 years ago
5 0

Answer:

42

Step-by-step explanation:

x = Ky

18 = K(3)

K = 18/3 = 6

x = 6y

x = 6(7) = 42

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iragen [17]
The answer to your question is C.
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3 years ago
There are 4 jacks and 13 clubs in a standard, 52-card deck of playing cards. What is the probability that a card picked at rando
ale4655 [162]

Answer:

16/52, or 4/13.

Step-by-step explanation:

First, since we know that the question is asking for the probability of a club <u>or</u> a jack, we know that we have to add the two probabilities. The first probability is that of picking a club, which is 13/52. The probability of picking a jack (be sure not to overlap; don't double count the jack of clubs) is 3/52. Adding these two gives us 13/52+3/52=16/52, which simplifies to 4/13.

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3 years ago
HELP ME PLEASE !!!!!!! WILL GIVE 50 pts
Zielflug [23.3K]
Vertex formula = -b/2a
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However, this is just the x value, the vertex is (x,y)
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A) (18,576)
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4 0
3 years ago
Read 2 more answers
How to determine if the function has x-axis sym, y-axis sym, and origin sym<br><br> y^2 -xy =2
n200080 [17]

To check for symmetry on the x axis, replace y with –y

-y^2 –x(-y) =2

<span> Apply the product rule, since the equation is not identical tot eh original equation it is not symmetric about the x axis</span>

<span> Now do the same for y axis by replacing x with –x</span>

<span> Again using product rule the equations are not identical, so it is not symmetric about the y axis</span>

<span> To check the origin,</span>

<span> Replace both x & y with –x  & -y</span>

Again using product rule, the equations are not identical so it is not symmetric about the origin


8 0
2 years ago
How do I solve this?​
Neporo4naja [7]

Answer:

v = 22

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{BI}{MO} = \frac{BG}{MP} , substitute values

\frac{v}{33} = \frac{64}{96} ( cross- multiply )

96v = 2112 ( divide both sides by 96 )

v = 22

3 0
2 years ago
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