Answers
Answer:
Step-by-step explanation:
this is exactly the same as the 1st one, just they put it in a different orientation. sooo use law of cosines , where
QR = c
a = 12
b = 23
cos(120) = cos (P)
c = sq rt [ a^2+b^2﹣2*a*b*cos(P) ]
QR = sq rt [ 12^2 + 23^2 - 2* 12*23*cos(120) ]
QR = sq rt [ 144 + 529 - 552 * (-0.5 0 ]
QR = sq rt [ 673 + 276 ]
QR = sq rt [ 949 ]
QR = 30.8058
rounded to nearest 10th is
QR = 30.8 :)
Related Questions
Please Help! I will give you the brainiest and a lot of points! (Ch.5.3)
1. The total distance covered is BLANK miles.
(Simplify your answer. Type an integer, simplified fraction, or mixed number.)
2. You walked BLANK miles farther than you jogged.
(Simplify your answer. Type an integer, simplified fraction, or mixed number.)
Answers
Answer:The solution is in the attached file
Step-by-step explanation:
For a left-tailed test based on a sample of 18 observations with the test statistic t = 1.9, what is the associated p-value?
Answers
The associated p-value for this left-tailed t-test is 0.0359 or 3.59%.
Now, The p-value for a one-tailed t-test with a sample size of 18 and a test statistic of 1.9,
Hence, we need to look up the t-distribution table.
So, Using a one-tailed test with,
df = n - 1
= 18 - 1 = 17 degrees of freedom
We find that the area to the left of 1.9 under the curve is 0.0359.
This means that there is a 3.59% probability of observing a t-statistic less than or equal to 1.9 if the null hypothesis is true.
Therefore, the associated p-value for this left-tailed t-test is 0.0359 or 3.59%.
Learn more about the probability visit:
https://brainly.com/question/13604758
#SPJ1
Jose gets his hair cut for $12. He gives his barber a
15% tip. How much does he give the barber for a tip?
(Plz help me)
Answers
Answer:
he would pay $13.80 the tip is $1.80
Step-by-step explanation:
Identify the mean, median, mode, and range of the data set. 7, 6, 8, 12, 9, 13, 8
Answers
The mean is approximately 9, the median is 9, the mode is 8, and the range is 7.
To find the mean, we add up all the numbers in the data set and divide by the total number of numbers:
Mean = (7 + 6 + 8 + 12 + 9 + 13 + 8) / 7 = 63 / 7 ≈ 9
So the mean is approximately 9.
To find the median, we need to arrange the numbers in order from smallest to largest:
6, 7, 8, 8, 9, 12, 13
Since there are an odd number of values in the data set, the median is the middle value, which is 9.
To find the mode, we need to look for the value that occurs most frequently in the data set. In this case, 8 occurs twice, which is more than any other value, so the mode is 8.
To find the range, we need to subtract the smallest value from the largest value:
Range = largest value - smallest value = 13 - 6 = 7
To learn more about median here:
https://brainly.com/question/28060453
#SPJ1
Points A, B, C, and D lie on circle M. Line segment BD is
a diameter. The measure of arc CD equals the measure
of arc DA.
M
D
B
A
D
What is the measure of angle ADM?
O22.5°
30.0⁰
45.0°
67.5°
Answers
The measure of angle ADM is 45.0°, as the intercepted arc AD is congruent to arc CD.
To find the measure of angle ADM, we need to consider that angle ADM is an inscribed angle and its measure is half the measure of the intercepted arc AD.
Given that the measure of arc CD equals the measure of arc DA, it means that these arcs are congruent.
Therefore, the intercepted arcs AD and CD have equal measures.
Since angle ADM is an inscribed angle intercepting arc AD, the measure of angle ADM is half the measure of arc AD.
Therefore, the measure of angle ADM is 45.0°, as the intercepted arc AD is congruent to arc CD.
for such more question on measure of angle
https://brainly.com/question/25716982
#SPJ8
In a reforestation program, 3040 seedlings were planted. Three times as many willows as aspens were planted. The number of poplars planted was 40 more than twice the number of aspens. How many of each type of seedling was planted?
Answers
Answer:
Step-by-step explanation:
Let's use variables to represent the number of each type of seedling planted.
Let a be the number of aspens planted.
Then, the number of willows planted is 3a (since three times as many willows as aspens were planted).
And the number of poplars planted is 2a + 40 (since the number of poplars planted was 40 more than twice the number of aspens).
According to the problem statement, the total number of seedlings planted was 3040. Therefore, we can write an equation:
a + 3a + 2a + 40 = 3040
Simplifying the equation, we get:
6a + 40 = 3040
Subtracting 40 from both sides, we get:
6a = 3000
Dividing both sides by 6, we get:
a = 500
So, 500 aspens were planted.
The number of willows planted is 3a = 3 × 500 = 1500.
The number of poplars planted is 2a + 40 = 2 × 500 + 40 = 1040.
Therefore, 500 aspens, 1500 willows, and 1040 poplars were planted in the reforestation program.
In the given Problem Solving, reforestation program, 500 aspens, 1500 willows, and 1040 poplars were planted.
Explanation:Let's denote the number of aspens as x, willows as 3x, and poplars as 2x+40, according to the problem. The total number of seedlings planted was 3040, so we can set up the following equation: x + 3x + 2x + 40 = 3040.
Solving this equation, we find that x = 500. Therefore, there were 500 aspens, 1500 willows (because 3x = 3*500 = 1500), and 1040 poplars (because 2x+40 = 2*500 + 40 = 1040) planted.
Learn more about Problem Solving here:https://brainly.com/question/31606357
#SPJ2
What is the measurement of this angle ?
Answers
The measurement of the given angle is a 90 degree.
According to the statement
We have to find that the measurement of this angle.
So, For this purpose, we know that the
An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.
From the given information:
In the given figure, the measurement of the angle we have to find.
A 90-degree angle is a right angle and it is exactly half of a straight angle. It always corresponds to a quarter turn.
And from the figure it is clearly visible that the line of the angle exactly matches with the 90 degree.
Then the angle is 90 degree.
So, The measurement of the given angle is a 90 degree.
Learn more about angle here
https://brainly.com/question/1592456
#SPJ9
(-3)(-3)(-3) please help me I need the answer
Answers
Answer:
-27 ?
Step-by-step explanation:
^that's if ur multiplying
Luis simplificó la fracción 72/9 obteniendo como resultado 8/1. El número por el que simplificó Luis fue:?-/ Plsss ayudenme
Answers
Answer: 9
Step-by-step explanation:
72÷9=8
9÷9=1
72/9 = 8/1
Use linear regression to find a function that fits the following points. (-5,14), (1,-16)
Answers
The linear regression equation is y = -5x + 21
How to determine the equation?The points are given as:
(-5,14), (1,-16)
The equation is then calculated using:
\(y = \frac{y_2 -y_1}{x_2 -x_1} * (x - x_1) + y_1\)
This gives
\(y = \frac{14 + 16}{-5 - 1} * (x - 1) + 16\)
Evaluate
y = -5 (x - 1) + 16
Expand
y = -5x + 5 + 16
Evaluate the sum
y = -5x + 21
Hence, the linear regression equation is y = -5x + 21
Read more about linear regression at:
https://brainly.com/question/17844286
#SPJ1
The length of ribbons found at a seamstress are listed.
3, 11, 11, 13, 13, 21
What is the appropriate measure of variability for the data shown, and what is its value?
The mean is the best measure of variability and equals 11.
The median is the best measure of variability and equals 11.5.
The range is the best measure of variability and equals 18.
The IQR is the best measure of variability and equals 2.
Answers
if the second term of a geometric sequence of real numbers is $-2$ and the fifth term is $16,$ then what is the fourteenth term?
Answers
The second term of a geometric sequence of real numbers is -2 and the fifth term is 16, then the fourteenth term of real number is -8192.
In mathematics, a geometric series, also called a geometric sequence, is a sequence of non-zero numbers in which each term after the first is found by multiplying the previous term by a non-zero fixed number giving a common calling relation of ratio.
Given that:
In geometric sequence of real number is is -2
And The fifth term is 16.
According to the Question:
Let r be the common ratio
So
(-2)r⁽⁵⁻²⁾ = 16
⇒ (-2)r³ = 16
⇒ r³ = -16/2
⇒ r³ = - 8
⇒ r = -2
So the 14th term is
(16)(-2)⁽¹⁴⁻⁵⁾
⇒ 16 (-2)⁹
⇒ 16 × (-512) = -8192
Learn more about Sequence:
https://brainly.com/question/30262438
#SPJ4
Assuming the population has an approximate normal distribution, if a sample size n=25
has a sample mean x=39
with a sample standard deviation s=3
, find the margin of error at a 95% confidence level. Round the answer to two decimal places.
Answers
Answer:
Step-by-step explanation:
To find the margin of error at a 95% confidence level, we need to use a t-distribution since the sample size is small (n = 25).
The formula for the margin of error with a t-distribution is:
margin of error = t*(s/sqrt(n)),
where t is the critical value from the t-distribution with n-1 degrees of freedom at a 95% confidence level (0.025 on each tail), s is the sample standard deviation, and n is the sample size.
First, we need to find the critical value from the t-distribution. Since we have n-1 = 25-1 = 24 degrees of freedom, we can find the critical value using a t-table or calculator. For a two-tailed test at a 95% confidence level, the critical value is approximately 2.064.
Next, we can plug in the values we have into the formula:
margin of error = 2.064*(3/sqrt(25))
margin of error = 1.2408
Rounding to two decimal places, the margin of error at a 95% confidence level is approximately 1.24. Therefore, we can say with 95% confidence that the true population mean is within 1.24 units of the sample mean (39).
A rocket is shot off from a launcher. The accompanying table represents the height of the rocket at given times, where x is time, in seconds, and y is height, in feet. Write a quadratic regression equation for this set of data, rounding all coefficients to the nearest tenth. Using this equation, find the height, to the nearest foot, at a time of 10.4 seconds.
Answers
Answer:
1.61.6 248248
Step-by-step explanation:
Which angle is adjacent to 4?
Answers
A paper company produces 4,950 notebooks in 5 days. How many notebooks can it produce in 13 days?
A.
2,574
B.
12,870
C.
4,737
D.
12,815
Answers
Answer: B)
Hope this helps ;) don't forget to rate this answer !
Step-by-step explanation:
To find the number of notebooks the paper company can produce in 13 days, we need to first find the average number of notebooks it produces per day. We can do this by dividing the total number of notebooks produced in 5 days by the number of days: 4,950 notebooks / 5 days = 990 notebooks/day.
Now that we know the average number of notebooks produced per day, we can multiply this value by the number of days to find the total number of notebooks produced in 13 days: 990 notebooks/day * 13 days = 12,870 notebooks.
Therefore, the answer is B) 12,870 notebooks.
I hope this helps! Let me know if you have any other questions.
Answer:
B. 12,870
Step-by-step explanation:
You are building a cube shaped box for your turtle to live in. You want to build your box with side lengths of 24 inches. However, when you finish the box, you find out that it has a volume of 27,000 cubic inches. How many more cubic inches is your box than you had planned? How much bigger are your side lengths than you had originally planned?
Answers
Answer: The box is 13,176 cubic inches larger than originally planned.
The side lengths turned out to be 6 inches longer than the 24 inches originally planned.
Step-by-step explanation:
To find the intended volume, "cube" 24 (24×24×24)
\(24^{3}= 13824\)
To find the difference, subtract 13,824 from 27,000
27000 - 13824 = 13176
To find the actual side lengths of the box that was built take the cube root of 27000.
\(\sqrt[3]{27000}=30\)
To find out how much longer, subtract 24 from 30.
30 - 24 = 6
Maya clocked in on Tuesday at 7:14am and left for lunch at 11:44am. She returned at 12:00pm and finally clocked out at 5:54pm. How many hours did Maya work?
Answers
Answer:
she worked 16 hours and 40 minutes
Solve the system of linear equations using substitution. Use a pencil and paper. Which expression would be easier to substitute into the other equation, in order to solve this problem? Explain your reasoning.
x=4y-9
x+4y=3
Answers
Answer:
(- 3, 1.5)
--------------------------
Given system:
x = 4y - 9x + 4y = 3The first expression is ready to be substituted as no further operation is required to simplify it.
4y - 9 + 4y = 38y - 9 = 38y = 12y = 12/8y = 1.5Find x:
x = 4*1.5 - 9x = 6 - 9x = - 3Solve the inequality and graph the solution set.
-3 ≤ 2x + 3 < 7
Answers
Answer:
Refer to the last line
Step-by-step explanation:
\(-3\leq 2x+3<7\)
\(-3-3\leq 2x<7-3\)
\(-6\leq 2x<4\)
\(-6/2\leq x<2\)
\(-3\leq x<2\)
Answer and explainaction please. End of course test is next week and I want to make sure I can work out answers on my own! :)
Answers
Answer: This is what I get.
Step-by-step explanation:
Which of the following expressions is equivalent to 3^2x − 3?
Answers
Answer:
3(3x−1)
Step-by-step explanation:
Find the area of the shape
Answers
Hello!
area
= 2*25 + (20 - 2)*(25-8)
= 50cm² + 306cm²
= 356cm²
I'LL GIVE THE BRAINLIEST IF YOU ANSWER!
Data Set 1 has a mean of 54 and a MAD of 4. Data Set 2 has a mean of 60 and a MAD of 2.
What can be concluded about the two distributions?
Select each correct answer.
A} The distributions are similar.
B} The distributions are somewhat similar.
C} The means-to-MAD ratio is 3.
D} The means-to-MAD ratio is 1.5.
Answers
The two distributions can be concluded as:
The distributions are similar.
The means-to-MAD ratio is 3.
Options A and C are the correct answer.
The MAD (Mean Absolute Deviation) is a measure of variability similar to standard deviation, but it measures the average absolute difference between each value and the mean, regardless of the direction of the deviation.
The means-to-MAD ratio is a measure of how spread out the data is, relative to the mean.
Since the means-to-MAD ratio for Data Set 1 is 3 and the means-to-MAD ratio for Data Set 2 is 30, Data Set 1 is more spread out than Data Set 2.
However, since the ratio is not extremely different (i.e., not greater than 10), the two distributions can still be considered similar.
Thus,
The two distributions can be concluded as:
The distributions are similar.
The means-to-MAD ratio is 3.
Learn more about mean here:
https://brainly.com/question/23263573
#SPJ1
what is the measure of angle m?
Answers
Answer:
The answer is 55.
m=55
Step-by-step explanation:
we know that a straight line is 180
We know that m+125 is a straight line.
This means that we will subtract 125 from 180
When you do that, you get 55.
We can check our answer by doing 125+55
That will get you 180.
1. Find the greatest common factor of 8 and 10
Answers
(I hope this helps you!)
A craftsman makes a circular table with a radius of 55
cm A customer asks for a smaller circular table to be made
with a diameter only half as big.
What is the circumference of the smaller table?
Answers
Answer:
Hey mate here is your answer...
Step-by-step explanation:
smaller circular table to be made
with a diameter only half as big... and diameter of big table is (2*55)= 110cm.... So half diameter of big is (110/2)= 55cm
therefore, diameter of smaller table is 55cm and radius of it's (55/2)= 27.5cm
circumference of circle = 2πr
= 2*3.14*27.5
= 172.7 cm = 27.5cm
hope it helps you ❣️
The parent function f(x)=x^3 is transformed to g(x)=(x-1)^3+4. Which graph represents function g?
Answers
PLEASE HELP I'LL GIVE BRAINILLEST PLEASE NO FAKE ANSWERS ITS DUE REALLY SOON :(
Answers
Answer:
4) No solution
6) x = 5
8) v = 5
Step-by-step explanation:
Step-by-step explanation:
4) there are no solutions
expand the equation
-2v+4=-3-2v
the -2v cancell out and you are left with 4=-3 which is impossible
6) the answer is 5
expand
8x+38=18+12x
20=4x
x=5
8) the answer is 5
expand
-3v-12=2v-37
25=5v
v=5
Hope that helps :)
How do i solve this slope of a line from a graph?
Answers
Answer:
How you solve it is you pick two points on a line and figure out their coordinates. Determine the difference in the y-coordinates of those two points. Then you also do the same thing with the x-coordinates. Then you divide the difference in the Y and X coordinates .
Step-by-step explanation:
hope this helps 100% sure though that it is right.