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3 years ago

7

What is the answer to the following equation?-x • 3x=?

1 answer:

Darina [25.2K]3 years ago

8 0

The answer is -3 because:
A negative times a postive stays negative and also:
the variable "x" has an invisible one in front of it, so,
-1 x 3 = -3

Hope this helps :)

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Y = 3x do this fast plz

mash [69]

Answer:

Step-by-step explanation:

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2 years ago

Find the indicated probability.

natka813 [3]

Answer:

C) 0.179

Step-by-step explanation:

Since the trials are independent, this is a binomial distribution:

<u>Recall:</u>

Binomial Distribution --> $P(k)={n\choose k}p^kq^{n-k}$
$P(k)$ denotes the probability of $k$ successes in $n$ independent trials
$p^k$ denotes the probability of success on each of $k$ trials
$q^{n-k}$ denotes the probability of failure on the remaining $n-k$ trials
${n\choose k}=\frac{n!}{(n-k)!k!}$ denotes all possible ways to choose $k$ things out of $n$ things

<u>Given:</u>

$n=10$
$k=4$
$p^k=0.53^4$
$q^{n-k}=(1-0.53)^{10-4}=0.47^6$
${n\choose k}={10\choose 4}=\frac{10!}{(10-4)!4!}=210$

<u>Calculate:</u>

$P(4)=(210)(0.53^4)(0.47^6)=0.1786117069\approx0.179$

Therefore, the probability that the archer will get exactly 4 bull's-eyes with 10 arrows in any order is 0.179

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2 years ago

What is bigger 2.75 gallons or 12 liters

emmasim [6.3K]

It is 12 liters. 2.75 gallons is approximately 10.41 liters and 12 liters is more than 10.41 liters.

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3 years ago

Read 2 more answers

WILL CHOOSE BRAINLIEST

algol [13]

Answer:

This is the answer if any problem just ask me

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2 years ago

please help, i will give BRAINLIEST. Write an expression in the simplest form to model the perimeter of the following triangle:

HACTEHA [7]

Answer: Original expression: 2x - 11 + 4x + 7 + 3(x-4)

Simplified: 9x - 16

Step-by-step explanation:

2x - 11 + 4x + 7 + 3(x-4) becomes 2x - 11 + 4x + 7 + 3x -12

Group like terms, then combine to simplify:

2x + 4x + 3x -11 + 7 - 12

2x + 4x + 3x = 9x

-11 -12 + 7 = =23+7= -16

Simplified expression: 9x - 16

5 0

2 years ago