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3 years ago

Is 75 divided by 5=15 an equation or expression?

Mathematics

2 answers:

tiny-mole [99]3 years ago

7 0

Answer:

Equation because there is an answer.

Step-by-step explanation:

Brainiest?

Maru [420]3 years ago

6 0

Answer:

Equation

Step-by-step explanation:

This would be an equation because there is a solution to the problem.

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a race car drivers time in seconds to complete 12 laps is plotted on a graph, what is the dependent variable?

Ipatiy [6.2K]

The time it took to complete 12 laps.
The independent, however, would be the car's speed or something like that.

6 0

3 years ago

The temperature at noon on Monday

Effectus [21]

Answer:

There was a 5% change

Step-by-step explanation:

On Monday, the temperature was 80.

On Tuesday, the temp was 77

On Wednesday, the temp was 84

there was a difference of 4

4 is 5% of 80

3 0

2 years ago

nventing is a difficult way to make money. Only 5% of new patents earn a substantial profit. A certain city has just had30 indep

Arlecino [84]

Answer:

$P(X \geq 2) = 1-P(X$

And we can find the individual probabilities using the probability mass function and we got:

$P(X=0) = (30C0) (0.05)^0 (1-0.05)^{30-0} =0.2146$

$P(X=1) = (30C1) (0.05)^1 (1-0.05)^{30-1} = 0.3389$

And replacing we got:

$P(X \geq 2) = 1-P(X$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=30, p=0.05)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

Solution to the problem

For this case we want this probability:

$P(X \geq 2)$

And we can use the complement rule and we got:

$P(X \geq 2) = 1-P(X$

And we can find the individual probabilities using the probability mass function and we got:

$P(X=0) = (30C0) (0.05)^0 (1-0.05)^{30-0} =0.2146$

$P(X=1) = (30C1) (0.05)^1 (1-0.05)^{30-1} = 0.3389$

And replacing we got:

$P(X \geq 2) = 1-P(X$

3 0

3 years ago

PLEASE ANSWER FAST DUE IN 20 MINS PLEASE ANSWER FAST FAST FAST

BabaBlast [244]

Answer:

1 C

2 D and B

3 46

Step-by-step explanation:

hope that helps if not sorry<3

6 0

3 years ago

A store has a 25% off sale on coats. Marcy saved $18.75 on the coat she bought. What was the original price of the coat?

Tcecarenko [31]

Answer:

$25

Step-by-step explanation:

18.75 is 75% of a value. You can easily find the answer by dividing 18.75 and 0.75.

When you have a problem like x*5=30, you divide 30/5 to get 6. Same here, x*0.75=18.75. Divide 18.75/0.75 to get the answer.

8 0

3 years ago

Read 2 more answers