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zhannawk [14.2K]
2 years ago
8

Plz plz plz help I will cry if u help this is the last question plz help

Mathematics
1 answer:
vaieri [72.5K]2 years ago
8 0

Answer:

\frac{2}{3}

Step-by-step explanation:

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Wich of these are part of the irrational number set ?
Ne4ueva [31]
An irrational number is a number than can't be put into a fraction. and is usually REALLY long number with decimal and does not have repeating numbers

A. 3/4 = 0.75 It is a fraction 

B. √225 = 15 It is a whole number

C. √17 = 4.1231056245617.... It is an irrational number

D. 175.2845 It is not irrational and can be put into a fraction (175  \frac{569}{2000})

4 0
3 years ago
I need help with underlined problems.
vaieri [72.5K]
#7 is 0.04 and it is a terminating decimal
4 0
3 years ago
Please help I need it!!!
ziro4ka [17]

Answer:

a

Step-by-step explanation:

it is being reflected of the other end

8 0
3 years ago
Read 2 more answers
A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac
sammy [17]

Answer:

The mass of the radioactive sample after 40 minutes is 12.8 g.

Step-by-step explanation:

The mass of the sample can be found by using the exponential decay equation:

N_{t} = N_{0}e^{-\lambda t}

Where:

N(t): is the amount of the sample at time t =?

N₀: is the initial quantity of the sample = 120 g

t = 40 min

λ: is the decay constant =  0.056 min⁻¹

Hence, the mass of the sample after 40 min is:

N_{t} = N_{0}e^{-\lambda t} = 120g*e^{-0.056min^{-1}*40 min} = 12.8 g

     

Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.

I hope it helps you!

5 0
3 years ago
The area of a rectangular barnyard is given by the trinomial 6x2 + 7x – 20. What are the possible dimensions of the barnyard? Us
sertanlavr [38]
Area of a rectangular barnyard: A=6x^2+7x-20
A=6(6x^2+7x-20)/6
A=[(6^2)(x^2)+7(6x)-120]/6
A=[(6x)^2+7(6x)-120]/6
A=(6x+15)(6x-8)/6
A=(6x+15)(6x-8)/[(3)(2)]
A=(6x/3+15/3)(6x/2-8/2)
A=(2x+5)(3x-4)
A=bh
b=2x+5; h=3x-4
Answer: The possible dimensions of the barnyard are 2x+5 and 3x-4
8 0
3 years ago
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