Answers
Answer:
none of the answer choices work sorry.
Step-by-step explanation:
Related Questions
I NEED HELP IN MATH!!! It’s due tonight and I’ve tried to do it and it don’t fully understand please help if u can!!!
Answers
Answer:
1. a. (-4,6)
Step-by-step explanation:
Sorry I'm not good with geometry or anything with area so I can only help with 1
Answer Question 1 is (-4,6)
Question 2 is 248 square inches
Hello! I really need some help on this.
Answers
Answer:
The area is 51 units squared.
Step-by-step explanation:
Since you are finding the area of a triangle, you first start with 12 x 8.5 = 102.
Then, you divide 102 in half, since the shape is a triangle. So, 102 ÷ 2 = 51.
So the answer is 51 units squared.
Hope this helps!
Suppose a normal distribution has a mean of 48 and a standard deviation of 5. What is the probability that a data value is between 48 and 52? Round your answer to the nearest tenth of a percent. O A. 26.2% . B. 30.5% O c. 31.1% O D. 28.8%
Answers
Answer:
31.1 best answer
sorry if it's wrong
28.8% is the probability that a data value is between 48 and 52.
What is probability?Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
First, we need to standardize the values and use a standard normal distribution table or calculator.
The standardized value of 48 is:
z = (48 - 48) / 5 = 0
The standardized value of 52 is:
z = (52 - 48) / 5 = 0.8
Now we need to find the probability that a data value is between z = 0 and z = 0.8 in a standard normal distribution. We can use a standard normal distribution table or calculator to find this probability.
Using the table or calculator, we can find that the probability of a data value being between z = 0 and z = 0.8 in a standard normal distribution is approximately 0.2881.
Rounding this answer to the nearest tenth of a percent, we get:
P(48 < x < 52) ≈ 28.8%
Therefore, the answer is D, 28.8%.
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how to turn 8/2 into a proper fraction?
Answers
Answer:
4 1/2
Step-by-step explanation:
how many times can 2 go into 8 it can go in 4 Times so 4 on the side and 1/2
Answer:
The only way to do it is to turn it into a mixed fraction. You do that by dividing 8 and 2. It doesn't come in a fraction, so your ans should be 4
Mark me brainliest :))
In Earth’s atmosphere, the speed of sound can be approximated using partial variation. The speed of sound is approximately 331 m/s at 0°C and approximately 343 m/s at 20°C.
Jenny yells out “Hello” in a canyon when the air
temperature is 10°C. It takes 1.4 s to hear her
echo. How far away is the wall of the canyon?
Answers
pls help me i dont know the awnser
Answers
Answer:
13/12
Step-by-step explanation:
make into inproper fraction then cross multiply then reduce to lowest terms. hope this helps
Answer:
Length of each stump is 2.167 feet
Step-by-step explanation:
8 2/3 divided by 4 is 2.166667
2.166667 simplified is 2.167
A clothing store advertises that its prices are only 10% above cost. What is the store's profit on a coat that is advertised for $160?
Answers
Explanation: 10% of $160 is $16
divide 6x3 ÷3x how to do please tell me
Answers
Answer:
hey your answer would be 3x • (2x2 - 1)
please tell me if im wrong
Step-by-step explanation:
Abby sold half of her comic books and then bought seventeen more. She now has 32. With how many did she begin?
Answers
Answer:
15 because 32 - 17 = 15
Step-by-step explanation:
What is the exact distance from (8, 5) to (−1, 3)? (Round to the nearest tenth)
Answers
Answer:
About 9.2 units
Step-by-step explanation:
[8-(-1)^2]+[(5-3)^2]
81+4
sqrt(85)
9.2
Brainliest appreciated :)
Please help!!
Which word best describes the degree of overlap between the two data sets?
low
moderate
none
high
Answers
Answer:
High
Step-by-step explanation:
Lets look at the chart, and see how similar each value is:
At 11, there is:
Both have 1 point. THis is similar
At 12:
Both have 1 point. This is similar
At 13:
One has 1 point, the other has 2 points. This is not similar
Next we have 14:
Both have 2 points. This is similar
15:
Both have 4 points. THis is similar
16:
Both have 3 points. This is similar
17:
One has 2 points the other has 1 point. This is not similar
So, 5 out of the 7 poitns are similar
And remember, the two points that are not similar are only off by 1.
So I would conclude that they are highly similar.
Hope this helps!
Find 789.81−474.928 . Express your answer in decimal form.
Answers
Answer:
314.882
Step-by-step explanation:
789.81 − 474.928 = 314.882
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Laurie is trying to stay within 10 feet of her current diving depth of -30 feet (with regard to sea level) so that the light is still good but she can be close to the sea life during her scuba dive Which two equations can be used to find the minimum and maximum depths Laurie wants to stay between?
Answers
Answer:
It should be the first one
Step-by-step explanation:
since positive ten would represent going further up and negative ten going further down, the diver would be within ten feet of her current position
Answer:
A) -30 - x = 10 and -30 - x = –10
Step-by-step explanation:
Part 1:
1) Isolate the variable x
-30 - x = 10
-x = 40
2) Multiply both sides by -1
x = -40
Therefore -30 - x = 10 is correct
Part 2:
1) Isolate the variable x
-30 - x = –10
-x = 20
2) Multiply both sides by -1
x = -20
Therefore -30 - x = –10 is also correct
Final Answer: -30 - x = 10 and -30 - x = –10
A new test is developed to test for organic matter in soil samples, giving "positive" or "negative" results to indicate that a sample does or does not contain organic matter.
For a soil sample that contains organic matter, the test will give a positive result 95% of the time and a negative result (false negative) 5% of the time. For a soil sample that does not contain organic matter, the test will give a positive result (false positive) 20% of the time and a negative result 80% of the time.
A study included a population of 1,000 soil samples, and 70% of those studied where known to contain organic matter.
Fill in the missing values in the table and statement below. If necessary, round the percentage to one decimal place.
Number of
Samples Positive
Result Negative
Result
Contains
Organic Matter 700 665
Does Not Contain
Organic Matter 300
240
If a soil sample test gives a positive result, it is
% likely that the soil sample contains organic matter.
Answers
Answer:
35
60
91%
Step-by-step explanation:
If a soil sample test gives a positive result, it is **91.7%** likely that the soil sample contains organic matter.
What is the probability?
Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
P(E) = Number of favorable outcomes / total number of outcomes
We are given that;
Positive results= 95%
Negative results= 5%
Now,
Positive result = 700 * 0.95 = 665
Negative result = 700 * 0.05 = 35
Similarly, for the soil samples that do not contain organic matter, we know that 20% of them will give a positive result and 80% will give a negative result. So, we can multiply 300 by 0.2 and 0.8 to get:
Positive result = 300 * 0.2 = 60
Negative result = 300 * 0.8 = 240
To fill in the missing value in the statement, we can use Bayes' theorem, which states that:
P(A|B) = P(B|A) * P(A) / P(B)
So, we have:
P(contains organic matter | positive result) = P(positive result | contains organic matter) * P(contains organic matter) / P(positive result)
P(positive result) = P(positive result | contains organic matter) * P(contains organic matter) + P(positive result | does not contain organic matter) * P(does not contain organic matter)
P(positive result) = 0.95 * 0.7 + 0.2 * 0.3
P(positive result) = 0.665 + 0.06
P(positive result) = 0.725
Plugging these values into Bayes' theorem, we get:
P(contains organic matter | positive result) = (0.95 * 0.7) / (0.725)
P(contains organic matter | positive result) = (0.665) / (0.725)
P(contains organic matter | positive result) = 0.9172
Therefore, by probability the answer will be 91.7%
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A pile of cards contains red and blue
cards. The ratio of blue cards to red
cards is 5:7, and there are 15 blue
cards in the pile. What is the total
number of cards in the pile?
Answers
Answer:
There are 36 cards
Step-by-step explanation:
let blue be B and red be R
B:R =5:7
B/R = 5/7
there are 15 blue cards...
15/R = 5/7
make R subject of the formula...
R = (15×7)/5
R = 21
there are 21 red cards and 15 blue cards
Total number of cards = red cards + blue cards
= 21 + 15
= 36 cards
HELP PLEASE READ THE IMAGE WILL GIVE BRIEANLIEANSTEINERER
Question 4 options:
5
7
3
6
Answers
Answer:
3
Step-by-step explanation:
because 12/4 = 3
now divide 9 by 3 so you get 9/3 = 3
Please help I struggle with this
Answers
Answer:
1390
Step-by-step explanation:
The triangles are 8*15* 2 and that equals 240. now you have 3 rectangles so solve so 23*17 is one another is 17*23 and the last one is 16*23 and that all equals 1150. so now you add 240 and 1150= 1390
A hiker has 2 pairs of hiking shoes, 3 shirts, and 5 pairs of shorts to choose from. How does the number of combinations of shoes, shirts, and shorts change as the
hiker adds a new pair of shorts to his collection? Explain.
If the hiker adds
new pair of shorts to his collection, the new number of combinations is
which is
than
The original number of combinations is
the original number of combinations.
(Type whole numbers.)
Answers
Answer: 12
Step-by-step explanation:
There are 12 different combinations
If you base it off of the 2 pairs of shoes, each one goes over each shirt twice, and each pair of shorts will go over once
Answer 1 pointss. Brainly back
Answers
Answer:
5
Step-by-step explanation:
I believe that this is correct because 220 is divisible by 5, which means it has completed the pattern 44 times (220 divided by 5 is 44). So 221 means that it has completed it 44 times, and then starts it one more time with only the first number.
5) A bag contains eight red
marbles and six blue
marbles. You randomly pick
a marble and return it to the
bag before picking another
marble. What is the
probabilty that the first
marble you picked was blue
and the second marble was
red? Record your answer as
a decimal to the
thousandths place (three
places past the decimal).
Answers
Answer:
P(B,R) = 24.490%
Step-by-step explanation:
P(B,R) = 6/14 x 8/14 which can be simplified to become 12/49 or 24.490%
The grid shown below is in the shape of a rectangle. What is the area, in square units, of the shaded part of the rectangle? *
Answers
B) 24
step-by-step explanation:
there are 48 squares in total
half of the squares are shaded
48/2
24
Answer:
I'm going to say 24. I'm 97% sure I'm correct
A company analyzed how inventory was affected during the first five hours after a commercial aired for its product. The relationship is shown on the graph below.
What happens to inventory as each hour passes?
A.
The inventory decreases by 20 units.
B.
The inventory decreases by 10 units.
C.
The inventory decreases by 5 units.
D.
The inventory decreases by 1 unit.
Answers
I need help with all odd numbers please
Answers
Answer:
5. a = 4
7. x = -8
9. x = -1
11. p = 1.1
13. x = -1
15. x = -4
Step-by-step explanation:
2.9a = 11.6
2.9a/2.9 = 11.6/2.9
a = 4
-3.7x = 29.6
-3.7x/-3.7 = 29.6/-3.7
x = -8
(x-5)(-3) = 18
(x-5)(-3)/-3 = 18/-3
x-5 = -6
x-5+5 = -6+5
x = -1
3.6 = -2p+5.8
3.6-5.8 = -2p+5.8-5.8
-2.2 = -2p
-2.2/-2 = -2p/-2
1.1 = p
2x+6 = -4x
2x+6-6 = -4x-6
2x = -4x-6
2x+4x = -4x-6+4x
6x = -6
6x/6 = -6/6
x = -1
21-6x = -11-14x
21-6x-21 = -11-14x-21
-6x = -14x-32
-6x+14x = -14x-32+14x
8x = -32
8x/8 = -32/8
x = -4
Answer:
5.) a= 4
7.) x= -8
9.)x= -1
11.) p= 1.1
13.) x= -1
15.) x= -4
Step-by-step explanation:
5.) divide 11.6 by 2.9a
7.)divide 29.6 by -3.7u
9.) Divide by sides by -3. simplify. Add 5 to both sides. then simplify again x= -1
11.) subtract 5.8 from 3.6 . you're left with -2p=-2.2 divide both sides by -2. you get p=1.1
13.)Subtract 6 from both sides. You get 2x= -4x-6. Add 4x to both sides. then divide -6 by 6 you get x=-1
15.) Simplify both sides of the equation, so add 14x to -6x +21 side, you get 8x= -32 then divide -32 by 8x you get -4
Given the point (x, y) = (3, 8), find x' of the image point with respect to an axis rotated 60.
3/2 + 4√3
(3√3)/2 - 4
(3√3)/2 + 4
Answers
The value of x', the image point with respect to an axis rotated 60 is 3/2 + 4√3
How to determine the x' coordinate?The point is given as:
(x, y) = (3, 8)
The angle of rotation is given as:
θ = 60
The image of rotation is calculated using:
x = x'cosθ - y'sinθ
y = x'sinθ + y'cosθ
So, we have:
3 = x'cos(60) - y'sin(60)
8 = x'sin(60) + y'cos(60)
Evaluate cos(60) and sin(60)
3 = 1/2x' - y'√3/2
8 = x'√3/2 + 1/2y'
Multiply the second equation by √3
8√3 = 3/2x' + √3/2y'
Add this equation and the first equation to eliminate y'
3 + 8√3 = 1/2x' + 3/2x'
Evaluate the sum
3 + 8√3 = 2x'
Divide through by 2
x' = 3/2 + 4√3
Hence, the value of x' is 3/2 + 4√3
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1 4/7 as an improper fraction.
Answers
11/7
The mix fraction as an improper fraction is 11/7.
We have,
Mix fraction:
1(4/7)
This can be simplified as an improper fraction:
= {(7 x 1) + 4} / 7
= (7+ 4) / 7
= 11/7
Thus,
The mix fraction as an improper fraction is 11/7.
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Help me with this please!!!!!
Answers
Answer:
d = √(x2 - x2)^2 + (y2 - y1)^2 + (z2 - z1)^2
P1(0, 0, 0) P2(-9, 6, -4)
Substitute the values in the above equation and you will get
d = √(-9)^2 + (6)^2 + (-4)^2
= √(81 + 36 + 16)
= √133
= 11.53
Answer:
The answer is 11.53
Name the polygon. Write whether it is regular
or not regular.
Answers
Answer:
since the polygon has eight sides, it's an octagon and no, it's not regular since length of all sides of a regular polygon must be equal but in that octagon, not all sides are equal.
State the x- and y-intercepts of each equation
y= -2x + 7
Answers
Answer:
x-intercept(s): ( 7/ 2 , 0 )
y-intercept(s): ( 0 , 7 )
Step-by-step explanation:
Answer:
y = 7, x = 7/2
Step-by-step explanation:
y - intercept = 7
x - intercept = 7/2
I know the answer is no x intercepts because we have an answer sheet to check our answers i just forgot how to do this and would appreciate an explanation: ind the number of x-intercepts of y= -x^2 + 4x - 12
Answers
Answer:
negative square root will result in zero x-intercepts
Step-by-step explanation:
there are no x-intercepts because if you use the quadratic formula on the equation you get a negative square root which results in zero x-intercepts
in this case, a=-1, b=4, c=-12
[-4±√4² - 4(-1)(-12)] / 2(-1)
= [-4 ± √16-48] / -2
= -4 ± √-32 / -2
What is the value of x in the triangle?
Answers
Answer:
a. 10√2
Step-by-step explanation:
hey, just use Pythagoras theorem
h²=p²+b²=10²+10²=100+100=200
h²=200, h= √200 =√(100×2)=√100×√2=10√2