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Andreyy89
3 years ago
8

A scientist has 350 mg of a radioactive material. The material will cut in half every month. After how many months will there be

.68mg left?
Mathematics
1 answer:
Zanzabum3 years ago
6 0
The answer would be about 9 months.
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(Which is the simplified form of the expression ? 3(7/5x+4)-2(3/2-5/4x)
Illusion [34]

Answer:

let's see what to do buddy....

Step-by-step explanation:

3( \frac{7}{5}x + 4) - 2( \frac{3}{2} -  \frac{5}{4}x) \\  \\  =  \frac{21}{5}x + 12  - 3 +  \frac{5}{2}x \\  \\  =  \frac{(21 \times 2) + (5 \times 5)}{10}  x + 9 =  \\  \\  \frac{42 + 25}{10} x + 9 =  \frac{67}{10}x + 9 = 6.7x + 9

5 0
2 years ago
Find the equation of the tangent line to the curve y=2sinx
Mrrafil [7]
 Hello
f(x) = 2sin(x)
f(<span>π/6) = 1 
f'(x) 2cos(x)
f'(</span>π/6) = 2×co(π/6) = 2 × root(3)×0.5  =root(3)
The equation of this tangent line is : y= root(3)(x-π/6)+1
y = root(3)x+1 - π/6(root(x))  <span>in the form y=mx+b
m = root(3)   and   b = </span>1 - π/6(root(x))
8 0
3 years ago
Given that j || k, what is the measure of the missing angle?
anzhelika [568]
60 degrees or C. Since the missing angle is the opposite of the 120 degree angle, 180 degrees minus(since that is the amount of degrees in a straight line, and a circle contains 360 degrees) the other angle gives you your answer.
8 0
3 years ago
Read 2 more answers
I need Help with 9??
andreyandreev [35.5K]
Sometimes it helps to draw it...so u can see

       7                   7
J_______K_________L
|__________________|
           4x - 2

since K is the midpoint, it splits the segment in 2 equal parts
JK + KL = JL
7 + 7 = 4x - 2
14 = 4x - 2
14 + 2 = 4x
16 = 4x
16/4 = x
4 = x <====

KL = 7 <===
JL = 4x - 2....4(4) - 2.....16 - 2 = 14 <==




7 0
3 years ago
50 POINTS!! Please help ASAP!!!
dlinn [17]

Answer:

A. 6^{\frac{1}{12}}

Step-by-step explanation:

\dfrac{\sqrt[3]{6}}{\sqrt[4]{6}} = 6^{\frac{1}{3} - \frac{1}{4}} = 6^{\frac{4}{12} - \frac{3}{12}} = 6^{\frac{1}{12}}

Answer: A. 6^{\frac{1}{12}}

6 0
2 years ago
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