1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ira [324]
3 years ago
13

A lab is trying to determine if a new medication is effective at reducing acne breakouts. The results are displayed in the Venn

Diagram below:What is the probability that the person's skin cleared up given that they used the medication?
A)10%
B)30%
C)20%
D)60%

Mathematics
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

its %60 i just took the test and got it right

Step-by-step explanation:

You might be interested in
Find the remaining trigonometric ratios of θ if csc(θ) = -6 and cos(θ) is positive
VikaD [51]
Now, the cosecant of θ is -6, or namely -6/1.

however, the cosecant is really the hypotenuse/opposite, but the hypotenuse is never negative, since is just a distance unit from the center of the circle, so in the fraction -6/1, the negative must be the 1, or 6/-1 then.

we know the cosine is positive, and we know the opposite side is -1, or negative, the only happens in the IV quadrant, so θ is in the IV quadrant, now

\bf csc(\theta)=-6\implies csc(\theta)=\cfrac{\stackrel{hypotenuse}{6}}{\stackrel{opposite}{-1}}\impliedby \textit{let's find the \underline{adjacent side}}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
\pm\sqrt{6^2-(-1)^2}=a\implies \pm\sqrt{35}=a\implies \stackrel{IV~quadrant}{+\sqrt{35}=a}

recall that 

\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad\qquad 
cos(\theta)=\cfrac{adjacent}{hypotenuse}
\\\\\\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}
\qquad \qquad 
% cotangent
cot(\theta)=\cfrac{adjacent}{opposite}
\\\\\\
% cosecant
csc(\theta)=\cfrac{hypotenuse}{opposite}
\qquad \qquad 
% secant
sec(\theta)=\cfrac{hypotenuse}{adjacent}

therefore, let's just plug that on the remaining ones,

\bf sin(\theta)=\cfrac{-1}{6}
\qquad\qquad 
cos(\theta)=\cfrac{\sqrt{35}}{6}
\\\\\\
% tangent
tan(\theta)=\cfrac{-1}{\sqrt{35}}
\qquad \qquad 
% cotangent
cot(\theta)=\cfrac{\sqrt{35}}{1}
\\\\\\
sec(\theta)=\cfrac{6}{\sqrt{35}}

now, let's rationalize the denominator on tangent and secant,

\bf tan(\theta)=\cfrac{-1}{\sqrt{35}}\implies \cfrac{-1}{\sqrt{35}}\cdot \cfrac{\sqrt{35}}{\sqrt{35}}\implies \cfrac{-\sqrt{35}}{(\sqrt{35})^2}\implies -\cfrac{\sqrt{35}}{35}
\\\\\\
sec(\theta)=\cfrac{6}{\sqrt{35}}\implies \cfrac{6}{\sqrt{35}}\cdot \cfrac{\sqrt{35}}{\sqrt{35}}\implies \cfrac{6\sqrt{35}}{(\sqrt{35})^2}\implies \cfrac{6\sqrt{35}}{35}
3 0
3 years ago
Sergio solved the following equation and found the answer to be x = 2. Which choice represents the best way for Sergio to check
MrMuchimi
The best way for him to check his answer would be to simply plug in the value found for x into the equation. 

4(2) - 6 = 2

8 - 6 = 2

2 = 2
6 0
3 years ago
what are two fractions that make 17/20. please don't respond if you don't know the answer because I'm wasting points please and
BartSMP [9]
1. 34/40
2. 51/60
Hope this helps!!!!
6 0
3 years ago
Read 2 more answers
What is 3x-9-5x=-7 if you solve for x
deff fn [24]

3x-9-5x = -7

combine like terms -9-2x = -7

add 9 to both sides

-2x = 2

divide both sides by -2

x - 2/-2 = -1

x = -1

6 0
3 years ago
4. The sum of iwo numbers is 36. Twice the first
Ludmilka [50]

Answer:

  14 and 22

Step-by-step explanation:

If x is the first number, then 36-x is the second. We are told that ...

  2x -(36-x) = 6 . . . . twice the first less the second is 6

  3x = 42 . . . . . . . . . add 36

  x = 14

  (36 -x) = 22

The numbers are 14 and 22.

4 0
3 years ago
Other questions:
  • Jacob is buying new tires for his car. They normally are $170 each, and he needs to replace all 4. Which option saves him the mo
    11·1 answer
  • The cost of 10 oranges is $1.00. What is the cost of 5 dozen oranges?
    9·2 answers
  • Brandon rolls a six sided die twenty times, and records the result in the table below. How many times did Brandon roll above the
    15·2 answers
  • What is the domain of the function y=2/x-6?
    7·1 answer
  • A road map has a scale of 1: 30 000
    10·2 answers
  • To Do, I-Re..
    5·1 answer
  • 100 POINTS IF RIGHT AND BRAINLESIT!!!​
    7·2 answers
  • Working with negative exponents #steps
    7·1 answer
  • Help me please and thank you
    13·2 answers
  • Choose the item that does NOT have a measurable volume.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!