What is the value of s?

Mathematics

1 answer:

Novay_Z [31]2 years ago

6 0

Answer:

68 is the answer

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1. (x + 2) < −3(x + 4)<br><br> 2. −3x + 3 < 6

Leno4ka [110]

number 1:

$x>\frac{-7}{2}$

number 2:

$x>-1$

7 0

2 years ago

Assume you have such a watch. if a minimum of 18.0% of the original tritium is needed to read the dial in dark places, for how m

laila [671]

Given that the half life of 3H is 12.3 years.

The amount of substance left of a radioactive substance with half life of $t_{ \frac{1}{2} }$ after t years is given by

$N(t)=N_0\left(\frac{1}{2} \right)^{ \frac{t}{t_{\frac{1}{2}} }$

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

$18 \% = 100 \% \left(\frac{1}{2} \right)^{ \frac{t}{12.3}} \\ \\ \Rightarrow\left(\frac{1}{2} \right)^{ \frac{t}{12.3}} =0.18 \\ \\ \Rightarrow\frac{t}{12.3}\ln\left(\frac{1}{2} \right)=\ln0.18 \\ \\ \Rightarrow\frac{t}{12.3}= \frac{\ln0.18}{\ln\left(\frac{1}{2} \right)} = \frac{-1.715}{-0.6931} =2.474\\ \\ \Rightarrow t=2.474(12.3)=30.4$

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>

5 0

2 years ago

Find the measure of angle A

Neporo4naja [7]

Since 3x + 2 is on a. Straight line, is is equal to 180 degrees.
1) So, 52 + another number must equal 180 degrees.
2) You're answer would be 118 because 118 + 52 = 180
3) Angle A = 118

6 0

2 years ago

Juan earns $625 per week. He is married and claims 3 withholding allowances. He pays $90 each

atroni [7]

Answer:

what is this

Step-by-step explanation:

7 0

2 years ago

Please help me. I need help

koban [17]

I am pretty sure the answer would be -.02
Bc you would do 2-3.6/5- -3

3 0

2 years ago

What is the value of s?​

What is the value of s?