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telo118 [61]
3 years ago
7

On the Venn diagram, which would be classified as an IRRATIONAL number?

Mathematics
1 answer:
AnnyKZ [126]3 years ago
5 0

Answer:

The correct answer is B. 2π

Step-by-step explanation:

A rational number is one that can be represented using a fraction and an irrational number cannot be represented using a fraction.

-√4 = -2, which is a rational number

2π is not a rational number (we cannot express pi as a fraction exactly even though there are some close approximations)

2.2121... is also a rational number because it can be expressed as a fraction (21/99, or 7/33 simplified)

√225 is 15, which is a rational number

Therefore, the only irrational option is option B. 2π, which is your answer.

Hope this helps!

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A real root of X3 – 3x2 + x + 7 = 0 lies between two consecutive integers.
mamaluj [8]

Answer:

B. between -2 and -1

Step-by-step explanation:

Brainlyist please

3 0
3 years ago
What is the slope of the line?
spin [16.1K]

Answer: 2

Step-by-step explanation:

The slope of a line is \frac{rise}{run} (rise over run)

This means for every point you must go up/down to get your next point you divide it by every point you go right/left.

From one point to the next it goes up 2 (rise) and right 1 (run)

\frac{2}{1} = 2 so that is your slope

8 0
2 years ago
Two factories I and II produce phones for brand ABC. Factory I produces 60% of all ABC phones, and factory II produces 40%. 10%
denpristay [2]

Answer:

0.3721 or 37.21%

Step-by-step explanation:

P(I) = 0.60; P(II) = 0.40;

P(not defective I) = 0.90; P(not defective II) = 0.80

The probability that the phone came from factory II, given that is not defective, is determined by the probability of a phone from factory II not being defective divided by the probability of a phone not being defective.

P(II|not) = \frac{P(II)*P(not_{II})}{P(II)*P(not_{II})+P(I)*P(not_{I})}\\P(II|not) = \frac{0.40*0.80}{0.40*0.80+0.60*0.90}\\ P(II|not) =0.3721 = 37.21\%

The probability is 0.3721 or 37.21%.

4 0
3 years ago
What number must you add to complete the square?<br> x2 + 24x = 17
algol13

Answer:

144

Step-by-step explanation:

x^2+24x=17

b=24

(b/2)^2=(24/2)^2=12^2=144

7 0
3 years ago
ASAP PLEASE HELP!!!!
zzz [600]

Answer:

It will take Josie 80 minutes to run 10 miles.

Step-by-step explanation:

We can set up a proportion between the number of minutes she runs to the number of miles she runs. From what we know in the equation, we know that it takes her 24 minutes to run 3 miles, and it takes x minutes to run 10 miles. We can represent this in a proportion!

We know that the ratio of 24:3 will be the same for any number of miles, so we can say

\frac{24}{3} =\frac{x}{10\\}

We can solve this by first simplifying the left hand side then isolation x by multiple both sides of the equation by 10.

24/3 = 8

8 = \frac{x}{10}

80 = x

It will take Josie 80 minutes to run 10 miles.

8 0
3 years ago
Read 2 more answers
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