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mojhsa [17]
3 years ago
7

What does the variable k represent in the following equation : k/2 +1/2=3

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
The variable k equals 5
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The garden has 20 rows of crops and one half of the rows are planted with corn. How many rows are planted with corn?
max2010maxim [7]
20 x 1/2 = 10

There are 10 rows that are planted with corn.
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Aight ok so if i got two ducks and and i take one how munch is left
vichka [17]

Answer:

1

Step-by-step explanation:

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The amount of time, in minutes, that a woman must wait for a cab is uniformly distributed between zero and 12 minutes, inclusive
murzikaleks [220]

Answer:

P(X\leq x) =\frac{x-a}{b-a}, a \leq x \leq b

And using this formula we have this:

P(X

Then we can conclude that the probability that that a person waits fewer than 11 minutes is approximately 0.917

Step-by-step explanation:

Let X the random variable of interest that a woman must wait for a cab"the amount of time in minutes " and we know that the distribution for this random variable is given by:

X \sim Unif (a=0, b =12)

And we want to find the following probability:

P(X

And for this case we can use the cumulative distribution function given by:

P(X\leq x) =\frac{x-a}{b-a}, a \leq x \leq b

And using this formula we have this:

P(X

Then we can conclude that the probability that that a person waits fewer than 11 minutes is approximately 0.917

7 0
3 years ago
Which ordered pair could not be the coordinates for a clockwise rotation of the point W (-3, 4)?
madam [21]

Answer:

(-4, -3)

(-4,3)

(4,3)

The clock wise rotation of the coordinate will be

(3,4)

(3,-4)

(-3,-4)

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8 0
2 years ago
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What does Descartes's Rule of Signs tell you about the real roots of the polynomial? –2x3 + 3x2 – 5x – 2 = 0 a. There is one pos
Over [174]
The count the number of times the sign changes
that is how many positive roots there are
if you get a number that is ≥2, then count down by 2's ending at 0

sub -x for x and evaluate
count change in sign again
that is how many negative roots there are
if you get a number that is ≥2, then count down by 2's ending at 0


so

-2x^3+3x^2-5x-2=0
-,+,-,-
 1  2 
2 or 0 positive roots


x to -x
2x^3+3x^2+5x-2=0
+,+,+,-
       1
1 negative root



2 or 0 positive roots and 1 negative root


D is answer
7 0
3 years ago
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