☁️ Answer ☁️
Inequality Form:
b < −2
❤️
Interval Notation:
(− ∞, −2)
Hope it helps.
Explanation: Have a nice day!~ ￣▽￣
Answer:
b < -2
Step-by-step explanation:
-3 (4b + 7) > 3
-12b -21 > 3
-12b > 3 + 21
-12b > 24
b < 24/-12
b < -2
A diagnostic test for a disease is such that it (correctly) detects the disease in 90% of the individuals who actually have the disease. Also, if a person does not have the disease, the test will report that he or she does not have it with probability 0.9. Only 1% of the population has the disease in question. If a person is chosen at random from the population and the diagnostic test indicates that she has the disease, what is the conditional probability that she does, in fact, have the disease
Answer:
8.33% probability that she does, in fact, have the disease
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Positive test
Event B: Has the disease
Probability of a positive test:
10% of 100-1 = 99%
90% of 1%
So
[tex]P(A) = 0.1*0.99 + 0.9*0.01 = 0.108[/tex]
Positive test and having the disease:
90% of 1%
[tex]P(A \cap B) = 0.9*0.01 = 0.009[/tex]
What is the conditional probability that she does, in fact, have the disease
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.009}{0.108} = 0.0833[/tex]
8.33% probability that she does, in fact, have the disease
Sandra earns $3 for each bead necklace that she makes. She spends all the money she earns from selling 8 necklaces on 4 books. Each book costs the same amount.
Answer:6
Step-by-step explanation: if she earns 3 per 1 necklace, 8 times 3 is 24 and if she spends ALL the money then right now she has 24 and 4 books to spend it on. 24/4 is 6
please help !! find the missing sides
Riley bought 50 foot or rope. He cut off pieces that total 34’8” so far. How much rope does he have left
Answer:
the answer is 15'2" of the rope that is left
Step-by-step explanation:
Factorise
7lm - 21lmn
Answer:
7lm - 21lmn
taking common 7lm
7lm(1-3n)
Please help me find this
Answer:
i think 178 or 156
Step-by-step explanation:
10x6= 60
6x8=48
6x8=48
6x5=35
add all answers= 191
7) Taylor has a bag of marbles that are all the same size. Of all the marbles
in the bag, there are 5 red, 6 pink, 7 blue, 3 green, and 4 yellow marbles.
Using a probability model for this experiment, predict how many times
Taylor would pick up a red marble if she choses a marble 300 times. *
I
Answer:
60 times
Step-by-step explanation:
There are a total of 5+6+7+3+4=25 marbles
Out of those 25 marbles, 5 are red.
Since there would be a 5/25=1/5 chance of selecting a red marble one time, then we can set up a proportion to find out how many red marbles Taylor will select out of 300 marbles.
1/5=x/300
(1)(300)=(5)(x)
300=5x
60=x
x=60
Therefore, using a probability model for this experiment, Taylor would pick up a red marble 60 times if she chooses a marble 300 times.
CAN SOMEONE PLEASE DO THE MOST THEY CAN THIS IS URGENT
Answer:
1) 30
2) 1
3) 72
4) 0
5) 6
6) 2
7) 80
11) 16
12) 75
13) 31
14) 36
15) 0
16) 26
17) 52
Step-by-step explanation:
____________________________
1.) [tex]\bold{x=30}[/tex]2.) [tex]\bold{x=1}[/tex]3.) [tex]\bold{x=72}[/tex]4.) [tex]\bold{x=0}[/tex]5.) [tex]\bold{x=6}[/tex]6.) [tex]\bold{x=2}[/tex]7.) [tex]\bold{x=80}[/tex]11.) [tex]\bold{x=16}[/tex]12.) [tex]\bold{x=75}[/tex]13.) [tex]\bold{x=31}[/tex]14.) [tex]\bold{x=36}[/tex]15.) [tex]\bold{x=0}[/tex]16.) [tex]\bold{x=26}[/tex]17.) [tex]\bold{x=52}[/tex]____________________________
PLEASE HELP! What is the largest number represented on the stem and leaf plot ?
Answer:
44
Step-by-step explanation:
remember stem equal tens place and leafs equal the ones place
so we can conclude that the largest number would be 44
Answer:
44
Step-by-step explanation:
To read a stem leaf plot, the stem portion will represent the tens place and the leaf portion represents the ones place. Therefore, the largest number represented by this plot would be 44.
PLEASE HELP WITH THIS BEST ANSWER GETS BRAINLIEST
This is an example of a random sample: The Student Council wants to survey 7th grade students about their favorite lunch food. They write down the names of all 7th grade students and put their names in a hat, then draw names to collect the sample of students to be asked.
True
False
True or false: all animals have adaptations.
Answer:
true because all animals need to adapt in their lives
Please help me with this
Answer:
$1224
Step-by-step explanation:
72 adults in the theater, and 17$ per adult ticket.
72 x 17 is 1224.
A car is driven 600 miles and uses 20 gallons of gas. If gas is $1.05 per gallon, what is the gasoline cost per mile?
Answer:
hi
Step-by-step explanation:
What is the coefficient of 20x?
Answer:
20
Step-by-step explanation:
A coefficient is the number that is attached to the variable.
In this case, the number attached to the variable is 20.
Therefore, the coefficient is 20
hope this helps :)
I need help Estimate 81/4 but into a number
If yall wanna send a paragraph to yo girl/boy here
Before I met you, I didn’t think love was for me. It was something other people had and felt. Something in movies and in TV shows. It felt more like a wish I had then something real. Now that I’m with you, love is so much more tangible. It’s something I can reach out and touch. It’s so much more than a wish or a hope (though it does give me hope, for so many things), it’s the very real, wonderful person I wake up to. The warm hand next to mine, the brush of hair against my cheek. I love you and because of that love, I love so much more than you. I love myself and the world in a way I never thought possible. You’ve made that possible for me. You’ve made everything possible. I just wanted to let you know how much I appreciate having you in my life. For helping me through the bad times and being there to help me celebrate the good times, I cherish all of the moments that we share together. There aren’t enough words in the dictionary for me to tell you how glad I am to have you in my life. I am so lucky to have you by my side. Everything you do for me never goes unnoticed. I don’t know what I did to deserve someone as wonderful as you, but I am eternally grateful to have your love, support, and affection. Thank you for being you, and for having me by your side.
Don't give me Creds for it :) stay strong ily bye
Answer:
Aw this paragraph is adorable!
Step-by-step explanation:
You are buying a new internet service. The service costs $75 per month. In the equation below, d is the
total number of dollars that you pay for your service, and t is the time (in months) that you keep the
service.
The relationship between these two variables can be expressed by the following equation:
d = 757
Identify the dependent and independent variables.
Help!!!
Answer:
The total number of dollars you pay: Dependent
The time in months you keep your service: Independent
Which of the following can NOT be answered from a regression equation?
a
predict the value of y at a particular value of x
estimate whether the linear association is positive or negative
estimate whether the association is linear or non linear
none of the above
Answer:
estimate whether the association is linear or non linear
Step-by-step explanation:
Use the multiplier method to decrease £56 by 14% show your working
Answer: £46.44
Step-by-step explanation:
£56 × 0.86 or (1 - 0.14)
I have tried a while to figure this out, but I have had no luck!
Dianne runs around a circular track that has a radius of 55 feet. After running three quarters of the distance around the track, how far has she run?
Answer:
She has run 259.18m
Step-by-step explanation:
Since Dianne is running around the circular track, she is running around the perimeter of the circle.
Now, we know that the perimeter of a circle is given by;P = 2πr
Thus the perimeter of the track = total distance that the man travels = 2 x π x 55 = 345.575 meters
Now,since she has run 3/4 of the distance, thus, she has run;
(3/4) x 345.575 = 259.18m
07:5
Which pair of angles must be supplementary?
VX
2.
6
3
4
5
21 and 26
22 and 25
0 25 and 24
Z6 and 22
Answer:
∠1 and ∠6
Step-by-step explanation:
Supplementary angles are two or more angles added together make 90°.
Right angles indicated by the small square at the corners.
∠2 and ∠5 are right angles.
So, any pair with ∠2 and ∠5 are not supplementary.
The only pair of angles that are not associated with ∠2 and ∠5 is: ∠1 and ∠6.
Find the area of the shape shown below.
Answer: 256
Step-by-step explanation:
Answer:
256cm² is the correct answer
como se divide 0.75÷5 con cociente menor que 1
ayudaaaaaa
La respuesta correcta es .15
The length of Andy's bed is 123 what is the length in feet
Someone please help me
PLEASE HELP!! WILL GIVE BRAINLIEST An artist has been commissioned to make a stained glass window in the shape of a regular octagon. The octagon must fit inside an 16-in. square space. Determine the length of each side of the octagon. Round to the nearest hundredth of an inch.
Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?
a.
$4,080
b.
$3,180
c.
$3,060
d.
$2,820
Answer:
Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?
a. ) $4,080 b. ) $3,180 <<<CORRECT c. ) $3,060 d. ) $2,820
Step-by-step explanation:
Edge 2021
Olivia has 1/2 pound of raisins. She plans to eat them for snacks over the next 6 days. If she eats the same amount each day, What fraction of a pound of raisins will she eat each day
Answer :
1/12
Step by step :
Pounds of raisins : 1/2 = 0.5
Number of days : 6
Pounds of raisins she will eat every day :
0.5 ÷ 6 = 0.83333... = 1/12
40 - 10 + 20
Don’t answer until when it’s one min later....there is a timer on my math probs so ya
Answer:
The answer is 50
Step-by-step explanation:
40-10=30
30+20=50
3x^2+xy factorise it
Answer:
The factorized expression is [tex]x(3x + y)[/tex]
Step-by-step explanation:
We are given the following expression:
[tex]3x^2 + xy[/tex]
Factorizing:
We place the common factor in evidence.
The common factor of both elements of the sum is x. So
[tex]3x^2 + xy = x(\frac{3x^2}{x} + \frac{xy}{y}) = x(3x + y)[/tex]
The factorized expression is [tex]x(3x + y)[/tex]