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kondor19780726 [428]
4 years ago
7

Please help me me me

Mathematics
1 answer:
Diano4ka-milaya [45]4 years ago
8 0
What can I help you with
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To test an individual's use of a certain mineral, a researcher injects small amount of a radioactive form of that mineral into t
Ostrovityanka [42]

Answer:

dC/dt = 2 mg*cm³/s

Step-by-step explanation:

Given

C(t)= (1/2)*(4t+ 4)- (1/2)

we apply dC/dt as follows

dC/dt = d((1/2)*(4t+ 4)- (1/2))/dt = (1/2)*(4) = 2

⇒   dC/dt = 2 mg*cm³/s

3 0
3 years ago
Suppose you average 82 on your first 7 test. What must you score on the eighth test to raise your average to 84?
natima [27]

so hmmm on average on the last 7 test, you get 82, so hmmm we could say that on each of the 7 tests you got 82, so you got 82, 7 times.

now, let's say in the 8th test, you get a grade of "g", now, if we were to get an average of all 8 tests, that means the average will simply be (82*7) + "g", and we know that's 84, so

\cfrac{(\stackrel{\textit{sum of all first seven tests}}{82+82+82+82+82+82+82})~~ + ~~g}{8}~~ = ~~84\implies \cfrac{(82\cdot 7)~~ + ~~g}{8}~~ = ~~84 \\\\\\ \cfrac{574+g}{8}=84\implies 574+g=672\implies g=672-574\implies g=98

7 0
2 years ago
Read 2 more answers
Can someone help me please
svp [43]
I can help you with something else ??
6 0
3 years ago
HELLPPP ME PLEASE I DONT GET IT
Mrrafil [7]
<span>For each one . . .

=> solve the equation for 'y'. That means massage it around until it's
in the form of <em> y</em> = (thing1) <em>x</em> + (thing2).

=> When you do that, then 'thing1' is the slope of the line on the graph,
and 'thing2' is the number where the line crosses the y-axis.

=> When you have those two numbers, drawing the line on the graph
is a piece-o-cake.</span>


3 0
4 years ago
Read 2 more answers
Find the equation of the line.<br> Use exact numbers.
expeople1 [14]

Answer:

y=2/3x+4

Step-by-step explanation:

rise 2

run 3

y-intercept 4

7 0
3 years ago
Read 2 more answers
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