Answer:
A
Step-by-step explanation:
Suppose that 5% of athletes at a certain university are using steroids or other
performance-enhancing drugs (PEDs). Unfortunately, the tests used to detect PEDs
aren't perfect. Suppose that 3% of athletes who are not using PEDs will test positive
and be accused of using PEDs. Meanwhile, 1% of athletes who are using PEDs will test
negative and escape detection. Calculate the probability that a randomly selected
athlete will test positive.
Answer:
There is a 8.11% of any randomly selected athlete to test positive.
Step-by-step explanation:
To make it easier, let's assume there are 100 athletes
5/100 have it
3/95 do not have it, but will test positive
1% of the 5 athletes who are using PEDs = 0.05%
This means that 4.95/100 will test positive
3/95 = 3.16%
(rounded, if you need a more precise answer, it's 3.1578947368421053)
3.16% + 4.95% = 8.11%
Which is the minimum or maximum value if the given function
А.
The function has a maximum value of -4.
B.
The function has a minimum value of -4.
C. The function has a maximum value of -3.
D
The function has a minimum value of -3
please tell me where to plot the points and what the solution will be.
help would be really nice here just a bit lost
PLEASE I NEED HELP
uhh whats 1 + 2
I don't get it. I have a feeling its 12 though.
your answer should be 3 :)
Mrs, carp's class has 11 boys and 17 girls. what is the probability that she will randomly chose a girl first and then a boy?
Possible answers ⇒
0.18
0.24
0.33
0.48
WILL GIVE BRAINLIST
HELP ASAP!!! find the lines of symmetry. Select all that apply
Answer:
B. and D.
Step-by-step explanation:
If you folded that shape along the lines o and m, it would match up.
There are two lines of symmetry m and o. Options B and D are correct.
From the given figure we have to determine the axes of symmetries.
A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.
Here,
As of the given figure,
There are 2 axes of symmetry first line m and the other is line o.
Line l and line n are not symmetrical lines because the reflection of one portion will not be superimposed with the other.
Thus, there are two lines of symmetry m and o. Options B and D are correct.
learn more about lines here:
brainly.com/question/2696693
#SPJ2
Please help me with this I am stuck
Answer:
450 cm ^3
Step-by-step explanation:
BRAINLIST. BRAINLIST. BRAINLIST. PLEASE HELP.
Answer:
1=140 2=9 3=19
Step-by-step explanation:
Answer:
1=140
2=9
3=19
Step-by-step explanation:
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Step-by-step explanation:
A. Right
B. Acute
C. Right
D. Obtuse
The area of a circular rose garden is 88
square meters.
What is the radius of the garden?
Answer:
c
Step-by-step explanation:
pls help and show work i am so screwed if i don’t do well on this
Answer:
see in the picture mark brainliest if correct
A carnival game has 160 rubber ducks floating in a pool. The person playing the game takes out one duck and looks at it.
I
f there’s a red mark on the bottom of the duck, the person wins a small prize.
If there’s a blue mark on the bottom of the duck, the person wins a large prize.
Many ducks do not have a mark.
After 50 people have played the game, only 3 of them have won a small prize, and none of them have won a large prize.
Estimate the number of the 160 ducks that you think have red marks on the bottom
Answer:
I think there are about 16-20 ducks with red marks on them.
Answer:
Around 10 ducks have a red mark
Factor the expression: x^2 +10x+9
Answer:
(x+1)(x+9)
Step-by-step explanation:
Hope this helps!
Multiply and combine like terms. Use^ for exponents. (2x-10)(3x-3)
Answer:
The answer is 5x - 13
Step-by-step explanation:
All we do is add the x's and the other numbers.
2 + 3 = 5 and 10 + 3 = 13
So, the equation is 5x - 13
Hope this helps! :)
what is more than 1/2 fraction but less than 3/4
Answer:
2/3
5/8
5/9
7/10
etc.
4 people can dig a trench in 3 hours.
How long would it take 9 people?
Give your answer in minutes.
Answer:
80 minutes.
Step-by-step explanation:
do I need to explain? I hate explaining :(
how do I solve sin(4x)=sin(2x)?
Answer:
sin(4x) = sin(2x) is unsolvable.
Step-by-step explanation:
The two sides are not equal.
Divide the larger square into 10 equal columns or rectangles. Shade one rectangle. What part of the whole is the shaded rectangle? Write that part as a decimal and a fraction.
Answer:
[tex]Part=\frac{1}{10}[/tex]
[tex]Part=0.10[/tex]
Step-by-step explanation:
Given
[tex]Columns = 10[/tex]
[tex]Shaded = 1[/tex]
Required
Part of the whole
This is calculated as:
[tex]Part=\frac{Shaded}{Columns}[/tex]
Substitute [tex]Columns = 10[/tex] and [tex]Shaded = 1[/tex]
[tex]Part=\frac{1}{10}[/tex]
[tex]Part=0.10[/tex]
Can someone help me , explain too it’s special right triangles
Answer:
10sqrt{2}
Step-by-step explanation:
This is a 45-45-90 right triangle. This means that the two legs are both the same length, call it x, and the hypotenuse is square root 2 times the given leg. There's a proof for this, but it's long, and you can find it online.
One house key weighs 1/2
ounce.
Which model represents the total weight in ounces of 5 house keys?
Answer: 5/2
Step-by-step explanation:
If 1 house key weighs 1/2 ounce,
Then do 5×1/2 which is 5/2
or [tex]\frac{1key}{5key} \frac{1/2ounce}{?}[/tex]
With this cross multiply and get 1x=5/2
giving a total of 5/2 again when divided by 1.
i need help!!!! i have to identify the area and i forgot how to do it and it was due 2 days ago!
Answer: I think B is the answer.
Step-by-step explanation:
Answer:not sure but
Step-by-step explanation: you can multiply each box, so lets say we have 20 times 7cm you multiply that and you get your answer, so put that a side
and once you multiply in each box add the numbers up and that should get your answer and make sure to add the "cm" at the end
There is a 20% sale on in Topshop. The bag I want is now £60. What was the original cost of my bag?
Answer:
£75
Step-by-step explanation:
Current value= 80
previous value= 100
current value 1
previous value = 100/80
current value- £60
previous value 100x60/80
=6000/80
= £75
plz mark me as brainliest.
18
A fruit salad was prepared containing 100 g of
acerola cherries, 100 g of kiwifruit, 300 g of
pineapple, and 200 g of strawberries. What is the
total amount of vitamin C, in grams, that is
contained in the listed fruits?
A)0.7g
B)2.069g
C)700g
D)2069g
A sofa is 7 feet 5 inches long. How many inches is the sofa?
89 inches!
Because each foot is 12 inches and 12*7=84 and 84+5=89!
which list shows these numbers in order from least to greatest?
Answer:
B
Step-by-step explanation:
[tex]\sqrt{9}[/tex] = 3
3[tex]\pi[/tex] = 9.42477
-2.4 = -2.4
-5 = -5
20% = 0.20
a) 3= x + 7
b) -7a-49
Answer: b im pretty sure hope this helps :)
Step-by-step explanation:
Answer:
A: x = -4
B: a = -7 (I'm assuming the '-' in front of 49 was supposed to be an '=')
Step-by-step explanation:
A: You need to group the like terms together, and isolate the variable, which in this case is x.
Take the 7 over to the other side, so the equation looks a little bit like this.
3-7 = x.
3-7 is -4, so we've gotten our answer.
x = -4.
B: -7a = 49.
When two negative numbers are multiplied together, the product becomes positive.
49 is 7x7.
-7 times -7 would be 49.
So, in this situation, a would be -7.
a = -7.
Help I don’t know this you dont have to explain:]
The total cost next year will be: $10,613.10
Solving:
The total cost of this year
Simply just add up everything that has been given which wouold give you 10,405
The total cost of next year
multiply the total cost of this year by 1.02 to find what the cost would be with a 2% increase which should give you 10,613.1
Determine the next term in the geometric sequence below.
-1, -2, -4, ...
-7
-10
-8
-6
Answer:
-8
Step-by-step explanation:
The rule for the sequence is ×2
E.g.
-1×2=-2
-2×2=-4
-4×2=-8
Answer:
-8 is the correct answer according to the sequence's rule.
38 − 7x = −2(x − 29)
Answer:
x = -4Step-by-step explanation:
38 − 7x = −2(x − 29)
=> 38 - 7x = -2x + 58
=> 38 - 58 = 7x - 2x
=> -20 = 5x
[tex] = > x = \frac{ - 20}{5} [/tex]
=> x = -4 (Ans)
