3. Find the coordinates of the midpoint of Asif A(-4, 7) and S(5,3). number 9 please
Step-by-step explanation:
slope = (x1 + x2/2 , y1 + y2/2)
x1 = -4
x2 = 5
y1 = 7
y2 = 3
after inserting the values we got,
→ ( -4 + 5/2 , 7+3/2 )
→ ( 1/2 , 10/2 )
→ ( 0.5 , 5 )
hope this answer helps you dear...take care mau u have a great day ahead!...
Answer:
( \(\frac{1}{2}\), 5 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( \(\frac{x_{1}+x_{2} }{2}\) , \(\frac{y_{1}+y_{2} }{2}\) )
Here (x₁, y₁ ) = A (- 4, 7) and (x₂, y₂ ) = B (5, 3 ) , then
midpoint = ( \(\frac{-4+5}{2}\) , \(\frac{7+3}{2}\) ) = (\(\frac{1}{2}\) , \(\frac{10}{2}\) ) = (\(\frac{1}{2}\) , 5 )
I need help with this question
The length of the legs of the right triangle are 2.83 units.
How to find the side of a right triangle?A right tangle triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.
Therefore, the legs of the triangle can be found using trigonometric ratios.
Hence,
sin 45 = opposite / hypotenuse
sin 45 = a / 4
cross multiply
a = 4 × 0.70710678118
a = 2.83 units
Therefore,
cos 45 = b / 4
cross multiply
b = 0.70710678118 × 4
b = 2.82842712475
b = 2.83 units
Therefore, the legs are 2,83 units
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A simple random sample of 50 items resulted in a sample mean of 25.1. The population standard deviation is 9.4. At 95% confidence, what is the margin of error? Hint: The sample size n=50>30, meaning that you can use the normal Z distribution and there's no need to use the t-distribution.
Therefore, at a 95% confidence level, the margin of error is approximately 2.719.
To calculate the margin of error at a 95% confidence level, we can use the formula:
Margin of Error = Z * (Standard Deviation / √n),
where Z represents the Z-score corresponding to the desired confidence level, Standard Deviation is the population standard deviation, and n is the sample size.
In this case, since the sample size (n) is greater than 30, we can use the normal Z distribution.
At a 95% confidence level, the Z-score is 1.96 (which corresponds to a 2-tailed test).
Plugging in the given values:
Margin of Error = 1.96 * (9.4 / √50)
Calculating the margin of error:
Margin of Error ≈ 2.719
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Find the perimeter of a squared garden if its area is 1369 m2.
Answer:
148 meters
Step-by-step explanation:
first, find the measure of one side by finding the \(\sqrt{1369}\) .
you will get 37 as the measure of one side of the square.
37 x 4 = 148
therefore the perimeter of the garden is 148 meters
PLEASE HELP MY ASSIGNMENT IS DUE IN LESS THAN A HOUR!!!
Answer: x ≈ 44
because ΔHIJ is a right triangle at J
=> sin x = 47/68
=> x ≈ 44°
Step-by-step explanation:
sat scores have a population mean of 1050 and standard deviation of 100. find the score that a student received if his/her score was the 98.71st percentile.
The score that a student received if his/her score was the 98.71st percentile is 1265 by using the Z-score formula.
The Z-score formula is:
Z = (X - μ) / σ
Where Z is the Z-score, X is the raw score, μ is the population mean, and σ is the standard deviation. In this case, the Z-score for the 98.71st percentile is 2.15 (from Z-score table), the population mean is 1050, and the standard deviation is 100. We can plug these values into the formula and solve for X:
2.15 = (X - 1050) / 100
2.15 * 100 = X - 1050
215 = X - 1050
X = 1265
Therefore, the score that a student received if his/her score was the 98.71st percentile is 1265.
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HELP!! PLS
Find the values of x and y in parallelogram PQRS.
PT=y, TR= 2x + 1, QT=3y. TS = 3x +9
Step-by-step explanation:
In a parallelogram, opposite sides are equal and parallel. Therefore,
QT = PS = 3y ...(1)
PT + TR = PS
y + 2x + 1 = 3x + 9
2x - y = 4 .....(2)
PR = QT = 3y
PR = SQ = 3x + 9 ....(3)
From equations (1) and (3), we can see that:
3y = 3x + 9
y = x + 3
Substitute this value of y in equation (2):
2x - (x + 3) = 4
x = 7
To find the value of y, we can substitute x = 7 in equation (2):
2(7) - y = 4
y = 10
Therefore, x = 7 and y = 10.
Students who score within 18 points of the number 82 will pass a particular test. Write this statement using absolute value notation and use the variable x for the score.
Answer:
[x-82]{≤18}
Step-by-step explanation:
The required way to write the statement using absolute value notation is, | x - 82 | ≤ 18.
What is inequality?Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.
Here,
This means that the absolute value of the difference between the score x and 82 is less than or equal to 18. In other words, if the score is within 18 points of 82 (above or below), then the absolute value of the difference between the score and 82 will be less than or equal to 18, and the student will pass the test.
Thus, the required way to write the statement using absolute value notation is, | x - 82 | ≤ 18.
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A function is represented by the equation y = x(x+3). If the input is -2, what is the output?
Two events are independent. The probability that you are going to see the movie in theater one is 25%. The probability that you will sit in the front row is 10%. What is the probability that you will see the movie in theater one and sit in the front row
The probability that we will see the movie in theater one and sit in the front row is (D) 2.5%.
What is probability?Probability is a branch of mathematics that deals with numerical descriptions of how likely an event is to occur or how likely a proposition is to be true. The probability of an event is a number between 0 and 1, where 0 indicates the event's impossibility and 1 indicates certainty.A probability formula can be used to calculate the probability of an event by simply dividing the favorable number of outcomes by the total number of possible outcomes.To find the probability that we will see the movie in theater one and sit in the front row:
Given -
The probability that you are going to see the movie in theater one is 25%. The probability that you will sit in the front row is 10%.So,
(1/4)(1/10) = 1/40 = .025 Or, 2.5%Therefore, the probability that we will see the movie in theater one and sit in the front row is (D) 2.5%.
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The correct question is given below:
Two events are independent. The probability that you are going to see the movie in theater one is 25%. The probability that you will sit in the front row is 10%. What is the probability that you will see the movie in theater one and sit in the front row.
(A) 40%
(B) 35%
(C) 4%
(D) 2.5%
You babysit 1515hours each week for $6.00$6.00per hour. You also earn $25.00$25.00each week for completing chores around the house.Use the drop-down menus to complete the equation to show a way to calculate your total weekly income,w.
the equation for calculating your total weekly income is:
w = $115.00.
To calculate your total weekly income, w, you need to consider the hours you babysit and the additional earnings from completing chores.
The income from babysitting is calculated by multiplying the number of hours, 15, by the hourly rate, $6.00. This can be represented as 15 × $6.00.
The income from completing chores is a fixed amount of $25.00.
To calculate the total weekly income, we can add the income from babysitting and the income from completing chores. The equation becomes:
w = (15 × $6.00) + $25.00.
Simplifying the equation, we have:
w = $90.00 + $25.00.
Combining the terms, the equation for calculating your total weekly income is:
w = $115.00.
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If 2 lemons are needed to make 5 glasses of lemonade, then how many lemons, l, are needed to make 45 glasses of lemonade?
Answer:
18
Step-by-step explanation:
Answer:
it's 18!
This is kinda easy though.
Find the greatest common divisor of 6, 14, and 21, and write it in the form 6r 14s 21t, for appropriate r, s and t.
The greatest common divisor of 6, 14, and 21 is 1, and it can be written as 6(0) 14(0) 21(1).
To find the greatest common divisor (GCD) of 6, 14, and 21 and write it in the form 6r 14s 21t, we can use the Euclidean algorithm.
Step 1: Find the GCD of 6 and 14.
- Divide 14 by 6: 14 ÷ 6 = 2 remainder 2
- Replace 14 with 6 and 6 with 2: Now we have 6 and 2.
- Divide 6 by 2: 6 ÷ 2 = 3 remainder 0
- Since the remainder is 0, the GCD of 6 and 14 is 2.
Step 2: Find the GCD of the result from step 1 (2) and 21.
- Divide 21 by 2: 21 ÷ 2 = 10 remainder 1
- Replace 21 with 2 and 2 with 1: Now we have 2 and 1.
- Divide 2 by 1: 2 ÷ 1 = 2 remainder 0
- Since the remainder is 0, the GCD of 2 and 21 is 1.
Therefore, the GCD of 6, 14, and 21 is 1. In the given form 6r 14s 21t, r would be 0, s would be 0, and t would be 1.
So, the GCD of 6, 14, and 21 is 1, and it can be written as 6(0) 14(0) 21(1).
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Tim drove at distance of 511 km in 7 h. What was his average driving speed in km/h?
Tim drove at a distance of 511 km in 7 h. His average driving speed in km/h is 73.
By computing Tim's average driving speed, we have to divide the total distance that he traveled by the time it takes him to complete the whole journey. In this respect, Tim drove a total distance of 511 km in 7 hours.
Average driving speed = Total distance/Total time taken
By putting the values in the equation we get :
Average driving speed =\(\frac{ 511 km}{7 h}\)
Now by computing the average driving speed:
Average driving speed = 73 km
So, Tim's average driving speed was 73 km/h.
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PLS HELP I HAVE TO DO THIS BY TONIGHTT
Alicia planted 45 tulip bulbs last year. This year she plans to plant 27 bulbs. Find the percent decrease in thenumber of tulip bulbs.
I got you !
Step-by-step explanation:
45 bulbs planted in first year.
65 bulbs the next year.
increase = 20 bulbs
Number of increase of planted tulip bulb is N = 65 - 45 = 20
( 20/45) x 100% = 44.4 % to the nearest tenths
MARKING PEOPLE AS BRAINLIST ALL DAY ONCE U ANSWER AND IS CORRECT :)
Answer: Hi there! your answer is A
Step-by-step explanation:
hope this helped smile and have a great day! stay positive!!! brainliest?
The volume of a right cone is 18 units. If it’s height is 6 units, find it’s diameter
Answer:
the answer is...........
Step-by-step explanation:
because...........................................................
Yessir another one for the bois
Answer:
I forgot what complementary means but it's either 3 or 5, probably 3
Step-by-step explanation:
A polynomial function has roots –5 and 1. Which of the following could represent this function?
Answer:
-5
Step-by-step explanation:
Answer: f(x)=(x+5)(x-1)
Step-by-step explanation:
got it right on edge
Simplify 4ab(5a²b²+2ab-3)
Answer:
Step-by-step explanation:
4ab • (((5a2 • b2) + 2ab) - 3)
2.1 Factoring 5a2b2 + 2ab - 3
Try to factor this multi-variable trinomial using trial and error
Found a factorization : (5ab - 3)•(ab + 1)
4ab • (5ab - 3) • (ab + 1)
what is the average number of pairs of consecutive integers in a randomly selected subset of 5 distinct integers chosen from the set
The average number of pairs of consecutive integers in a randomly selected subset of 5 distinct integers chosen from the set is approximately 1.032.
To find the average number of pairs of consecutive integers in a randomly selected subset of 5 distinct integers chosen from a set, we can consider the possible scenarios.
1. If all 5 integers are consecutive: In this case, there is only one pair of consecutive integers.
2. If 4 integers are consecutive and the fifth one is not: There are 4 possible subsets with this arrangement, and each subset will have 2 pairs of consecutive integers.
3. If 3 integers are consecutive and the other 2 are not: There are 10 possible subsets with this arrangement, and each subset will have 2 pairs of consecutive integers.
4. If 2 integers are consecutive and the other 3 are not: There are 10 possible subsets with this arrangement, and each subset will have 1 pair of consecutive integers.
5. If 1 integer is consecutive and the other 4 are not: There are 5 possible subsets with this arrangement, and each subset will have 1 pair of consecutive integers.
6. If no integers are consecutive: There is only one possible subset with this arrangement, and it will have no pairs of consecutive integers.
Now, let's calculate the average:
(1 * 1 + 4 * 2 + 10 * 2 + 10 * 1 + 5 * 1 + 1 * 0) / (1 + 4 + 10 + 10 + 5 + 1) = 32 / 31 ≈ 1.032
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The circle below represents one whole.
What percent is represented by the shaded area?
Answer:
it would be 50 in the khan academy quiz you are in.
if this helped you mark brainliest to me.
A wheel makes 13 revolutions to cover a distance of 65 m. Find the radius of the wheel.
\(\qquad\qquad\huge\underline{{\sf Answer}}\)
Circumference of the wheel is :
\(\qquad \tt \dashrightarrow \:c = 2 \pi r\)
c = circumference r = radiusNumber of revolutions = 13, and distance travelled is 65 m.
So, we can infer that :
\(\qquad \tt \dashrightarrow \:c = \frac{distance \: covered}{number \: of \: revolutions} \)
Now, equate both the equations ~
\(\qquad \tt \dashrightarrow \:2 \pi r = \frac{distance \: covered}{number \: of \: revolutions} \)
\(\qquad \tt \dashrightarrow \:2 \pi r = \frac{65}{13} \)
\(\qquad \tt \dashrightarrow \:2 \pi r = 5\)
\(\qquad \tt \dashrightarrow \:r = \frac{5}{2 \pi} \)
\(\qquad \tt \dashrightarrow \:r = \frac{5}{3.14 \times 2} \)
\(\qquad \tt \dashrightarrow \:r = \frac{5}{6.28} \)
\(\qquad \tt \dashrightarrow \:r \approx0.8 \: m\)
\(\qquad \tt \dashrightarrow \:r \approx80 \: cm\)
radius of wheel is 80 cm[ To the hundredth place : 0.796 m ]
I'll really appreciate it if you give me the answers
Answer:
1: A: -13,10 B: -11,10 C: -10,12 D: -13,11
2: P: 4,6 Q: 6,6 R: 7,8 S: 4,8
Step-by-step explanation:
So I want you to try this method for the rest of the questions so you still learn. All you have to do is add the number it is asking if it is UP, or RIGHT (POSITIVE) , and subtract the number if it is DOWN, or LEFT (NEGATIVE). Please give me brainiest.
if f(x)=3x+23, find the value of x so that f(x)=36
with steps please!
Answer: f(36)=131
Step-by-step explanation:
f(x)=3x+23
f(36)=3(36)+23
f(36)=108+23
f(36)=131
Answer:
131
Step-by-step explanation:
f(x)=3x+23 The first thing you do is plug in 36. so replace the X's with 36.
f(36)=3(36)+23 The second step is to multiple 3 times 36.
f(36)=108+23 The last step is to add 108 to 23.
F(36)=131
Find the sixth number in this counting sequence: 7, 14, 21,... please help me
Answer:
42
Step-by-step explanation:
7, 14, 21,...
We see that each term will increase by 7, so we have
7, 14, 21, 28, 35,42
So, the sixth number in this counting sequence is 42
Answer:
42
Step-by-step explanation:
The first number is 7
The rule is + 7
Then:
The sixth number in this counting sequence is:
7 + (5*7) = 7 + 35
= 42
how many solutions does  3x+9=25x+14 have?
Answer:
one solution
Step-by-step explanation:
3x + 9 = 25x + 14
-3x -3x
9 = 22x + 14
-14 - 14
-5 = 22x
Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch's 200 cows. Instead of weighing all of the cows: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50) Val weighs 100 cows and gets an average weight of 1,420 pounds (stdev 50) What is Jo's margin of error, rounded to the nearest whole number? (The formula is 1.96 straight x left parenthesis StdDev right parenthesis divided by square root of straight N)
Answer:
The value is \(E =19.6 \)
Step-by-step explanation:
From the question we are told that
The mean of Jo cows is \(\= x_1 = 1350\)
The standard deviation of Jo cow is \(s_1 = 50\)
The mean of Val cows is \(\= x_2 = 1420 \)
The standard deviation of Val cows is \(s_2 = 50\)
The sample size for both Val and Jo is n = 25
Let assume that the level of significance is \(\alpha = 0.05\)
Generally from the normal distribution table the critical value of \(\frac{\alpha }{2}\) is
\(Z_{\frac{\alpha }{2} } = 1.96\)
Generally the margin of error is mathematically represented as
\(E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }\)
Hence margin of error for Jo is
=> \(E = 1.96 * \frac{50}{\sqrt{25} }\)
=> \(E =19.6 \)
Find the sum of 3876, 9828 and 5030
3876+9828+5030= 18734
Answer:
18,734
Step-by-step explanation:
just add them all
3876
9828
+ 5030
---------
18,734
Which solid figure has the following net?
square prism
square pyramid
triangular pyramid
triangular prism
QUICK PLS!!
Answer:
square pyramid
Step-by-step explanation: