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3 years ago

I’m trying to solve radical equations and am confused Radical x - 2 = 2

Mathematics

2 answers:

yawa3891 [41]3 years ago

7 0

Answer:X=4

Step-by-step explanation:

The X is a variable and the variables worth is 4 so 4-2=2

dybincka [34]3 years ago

5 0

Answer: x-2=2

x=2+2

x= 4

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The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 15 minute

madam [21]

Answer:

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

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

For this problem, we have that:

Uniformly distributed between 3 minutes and 15 minutes:

So $a = 3, b = 15$

What is the probability that it takes Isabella more than 11 minutes to wait for the bus?

Either she has to wait 11 or less minutes for the bus, or she has to wait more than 11 minutes. The sum of these probabilities is 1. So

$P(X \leq 11) + P(X > 11) = 1$

We want P(X > 11). So

$P(X > 11) = 1 - P(X \leq 11) = 1 - \frac{11 - 3}{15 - 3} = 0.3333$

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

4 0

3 years ago

Terrence made a scale drawing of an American football field on a large piece of cardboard. An actual field is

iogann1982 [59]

Answer:

Step-by-step explanation:

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3 years ago

What is the seventh term of a geometric sequence that has a common ratio of –3 and the first term is –4?

rjkz [21]

An= A1 r ^(n-1)
An= -4 (-3)^(n-1)
An= -4 (-3)^(7-1)
An= -4 (729)
An= -2916

I think this is right :)

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3 years ago

Over the summer, for every 14 okra seeds Dana planted, 9 grew into plants. If he planted 210 okra seeds, how many grew into plan

Katena32 [7]

210s(9p/14s)=135p

So 135 seeds grew into plants.

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3 years ago

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A vending machine accepts nickels, dimes, and quarters. Exact change is needed to make a purchase. How many ways can a person w

arlik [135]

If he uses 1 quarter, he has 40 cent left to make.He can do that in two ways, by using 2 dimes andall four nickels, or all 3 dimes snd 2 nickels.That's 2 ways.
If he uses both quarters, he has 15 cent left to make.He can do that in two ways by using 1 dime and 1 nickel,or no dimes and 3 nickels.That's 2 more ways. So there are four ways to make 65 cents.

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3 years ago

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