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Sidana [21]
3 years ago
12

Please hurry and answer this *late work*

Mathematics
1 answer:
8090 [49]3 years ago
8 0

Answer:

x = -25, 39

Step-by-step explanation:

7 + 32 = 39

7 - 32 = -25

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What’s does 5x6 equal?
AveGali [126]

Answer:

30

Step-by-step explanation:

5+5+5+5+5+5 =

30

5 0
4 years ago
Read 2 more answers
Sarah takes 550 mg of an antibiotic. Every hour, her body breaks down 25% of the remaining drug. How much will be left after 12
hammer [34]

The amount of drugs that will be left after 12 hours is 17.42 mg provided Sarah takes 550 mg of an antibiotic every hour.

<h3>What is exponential decay?</h3>

Exponential decay can be described as a reduced amount of an original substance by a definite percentage over a period of time. It can be determined by using the formula:

\mathbf{y = a(1 - r)^t}

where;

  • y = total amount,          
  • a = initial amount = 550 mg
  • r = the growth rate = 0.25
  • t = number of growth periods = 12 hours

\mathbf{y = 550(1 - 0.25)^{12}}

y = 17.42 mg

Therefore, we can conclude that the amount of drugs that will be left after 12 hours is 17.42 mg.

Learn more about the exponential decay model here:

brainly.com/question/12940982

7 0
3 years ago
Find all the real fourth roots of 6561.select the correct choice below​ and, if​ necessary, fill in the answer box to complete y
Scrat [10]
9 because 9⁴ gives you that result, you can try on a calculator ;)
5 0
3 years ago
What is the solution to the system of equations?
gtnhenbr [62]

Answer:

Can you check your equation?  None of the solutions work out.

Step-by-step explanation:

4 0
3 years ago
A parabola is given by the equation y = x^2 + 4x + 4.
insens350 [35]
Y = x² + 4x + 4.. Since the coefficient of x² =1, is positive, then this parabola opens upward & has a minimum.


Its axis of symmetry is = -b/a = -4/1 = 4 (so x=4)

1) When x=4, y= 4²+4(4)+4 => y=36 so the VERTEX has a minimum is at (4,36) 

2)FOCUS.: To be able to calculate the focus, rewrite the equation in a standard form: y-k =a(x-h)² & y = x² + 4x + 4 could be written y=(x+2)², this means that k=0 & h=-2.
Now p being the distance between the VERTEX & the FOCUS, we apply the formula (x-2)² = 4P (y-k) , but k=0 & h=2 then (x-2)² = 4P(y-0) then P =1/4

3) DRECTRICE : y=k-P = 0-1/4 ==> y=-1/4 is the directrix
6 0
3 years ago
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