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3 years ago

How can you tell if a linear equation is proportional?

Mathematics

1 answer:

Snezhnost [94]3 years ago

5 0

Answer:

If the line goes through the origin, (0,0), that means the linear equation is proportional, if it doesn't go through the origin, the equation isn't proportional.

You can also tell if a linear equation is proportional if the equation has an constant after the x (for example y=2x+6)

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What is the correct classification for ∠QPS?

rewona [7]

∠QPS is part of the right angle, and it takes 90 - 21 degrees of it.
90 - 21 = 69°

Now take 69 and add 22, the rest of ∠QPS.
69 + 22 = 91

∠QPS is 91°, which is larger than a right angle, 90°, so that means it is an obtuse angle.

3 0

3 years ago

Read 2 more answers

Juan rides his bike 30 miles in 8 hours. At this rate how many miles does he ride his bike

irinina [24]

Answer:

answer is 7.5 miles

Step-by-step explanation:

30/8=3.75 mi in one hour

3.75*2=7.5 miles in 2 hours

hope it helps

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3 years ago

Plss help if can!! Thanks!

Novosadov [1.4K]

The first one is 2 the second one is 3

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3 years ago

For each of the following binomial random variables, specify n and p. (a) A fair die is rolled 50 times. X = number of times a 5

Keith_Richards [23]

Answer:

a) $n = 50, p = \frac{1}{6}$

b) $n = 16, p = \frac{1}{100}$

c) $n = 26, p = 0.25, \mu = 6.5$

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

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

And $p$ is the probability of X happening.

(a) A fair die is rolled 50 times. X = number of times a 5 is rolled

The die is rolled 50 times, so $n = 50$ .

Each roll can have 6 outcomes. So the probability that 5 is rolled is $p = \frac{1}{6}$

(b) A company puts a game card in each box of cereal and 1/100 of them are winners. You buy sixteen boxes of cereal, and X = number of times you win.

You buy 16 boxes of cereal, so $n = 16$ .