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2 years ago

-2.8k=7 how do I solve for k?

Mathematics

2 answers:

baherus [9]2 years ago

4 0

Answer:

k= -2.5

Step-by-step explanation:

larisa [96]2 years ago

4 0

7/-2.8. We have to get k to one side and we can do that by diving 7 by -2.8 so k is equal to -2.5 .

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Please help me. I don’t understand at all.

erastovalidia [21]

Answer:

Option 2

Step-by-step explanation:

Evaluating the options :

Option 1

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Option 2 is the right answer.

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1 year ago

A chemist weighed an object and found its mass to be 250 grams. The objects actual mass is 360 grams. What was the chemists perc

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3 years ago

Q5: The probability that event A occurs is 5/7 and the probability that event B occurs is 2/3 . If A and B are independent event

bekas [8.4K]

Answer:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

Step-by-step explanation:

We define two events for this case A and B. And we know the probability for each individual event given by the problem:

$p(A) = \frac{5}{7}$

$p(B) = \frac{2}{3}$

And we want to find the probability that A and B both occurs if A and B are independent events, who menas the following conditions:

$P(A|B) = P(A)$

$P(B|A) = P(B)$

And for this special case we want to find this probability:

$P(A \cap B)$

And we can use the following formula:

$P(A \cap B)= P(A)* P(B)$

And replacing the info we got:

$P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476$

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2 years ago

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Vlad [161]

Answer: $P=5y+11x$

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

- By definition, the perimeter of the figure is the sum of the lenght of each side. Then, you must make the addition as following:

$P=2.8y+2x+2.2y+5x+4x$

Where $P$ is the perimeter of the figure.

- Add the like terms, then, you obtain the following expression in simplest form:

$P=5y+11x$

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3 years ago

Right answer gets brainlist

nadezda [96]

Answer:

Step-by-step explanation:

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3 years ago

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