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motikmotik
2 years ago
13

Which number is not a rational number?

Mathematics
1 answer:
Valentin [98]2 years ago
4 0
Rational is a number that can be expressed as a ratio of two in tegers where denominator is not equal to 0 is called a rational number.
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First person with a answer is marked as the Brainliest answer
poizon [28]

Answer:

-4, 0, and 4

Step-by-step explanation:

6 0
3 years ago
HELP ILL MARK YOU BRAINLIST
bekas [8.4K]

Answer:

-\frac{3}{2}

4 0
2 years ago
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A city starts with a population of 500,000 people in 2007. Its population declines according to the equation
hjlf

Answer: After 7 years the population will be one-half the initial amount.

Step-by-step explanation:

Given: Initial population = 500,000

The population declines according to the equation:

P(t) = 500,000e^{ -0.099t}, where P is the population in t years later.

One-half the initial amount = 0.5 x 500,000

= 250,000

Put P(t)=250,000, we get

250000=500000e^{-0.099t}\\\\\Rightarrow\ \frac{500000e^{-0.099t}}{500000}=\frac{250000}{500000}\\\\\Rightarrow\ e^{-0.099t}=\frac12\\\\\Rightarrow\ -0.099t=\ln \left(\frac{1}{2}\right)\\\\\Rightarrow\ t=\frac{1000\ln \left(2\right)}{99}=\frac{1000(0.69314)}{99}\\\\\Rightarrow\ t=7.00148\approx7

Hence, After 7 years the population will be one-half the initial amount.

5 0
3 years ago
[PLEASE HELP] The area of Bethany's garden will be 48 square feet once she expands it. She is not going to change the measuremen
NARA [144]

Answer:

4 ft by 12 ft

Step-by-step explanation:

x^2 +8x -48

Set this equal to 0 to solve for the values of x

x^2 +8x -48=0

What two values multiply to -48 and add to 8

12*-4 = -48

12+-4 = 8

(x+12) (x-4) = 0

Using the zero product property

x+12 = 0   x-4=0

x=-12           x=4

We cant have a negative length

x=4

The area is 48

48/4 = 12

The other dimension is 12

6 0
2 years ago
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nalin [4]

Answer:

lo siento no puedo contestar

6 0
3 years ago
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