Will give the brainliest to the person who answers the question first and correctly!!
For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard deviation?
Round to the nearest tenth.
A. 4.1
B. 20.5
C. 16.4
D. 4.5
Answers
Answer:
D. 4.5
Step-by-step explanation:
Related Questions
2. List the first four terms of the geometric sequence with a, = 5 and r = -2.
Answers
Answer:
[tex]5,~ -10,~ 20,~ -40[/tex]
.
Step-by-step explanation:
Geometric sequence
[tex]Un = ar^{n - 1}[/tex]
.
We know that
a = 5 and r = -2
.
So
[tex]U_1 = 5(-2)^{1 - 1} = 5(-2)^0 = 5[/tex]
[tex]U_2 = 5(-2)^{2 - 1} = 5(-2)^1 = -10[/tex]
[tex]U_3 = 5(-2)^{3 - 1} = 5(-2)^2 = 20[/tex]
[tex]U_4 = 5(-2)^{4 - 1} = 5(-2)^3 = -40[/tex]
.
Happy to help :)
Answer:
the aswers is 5, -10, 20,-40
what is the equation for this situation
Answers
A national standardized test is graded on a scale from 1 to 5 the scores for a particular school are given below if a student Is chosen at random what is the possibility that they scored a 4 or a 5
Answers
Answer:
Step-by-step explanation:
The possibility of scoring a 4 is 1/5
The possibility of scoring a 5 is 1/5
The possibility of scoring either 4 or a 5 is 2/5
Three concert tickets cost $45. At this rate, how much does it cost per ticket?
$135 per ticket
$3 per ticket
$15 per ticket
$48 per ticket
Answers
To find unit rate you need to see how much something costs per item. This means you need to do 45/3. This gives you your answer of $15.
Hope this helps and have a nice day!!!
- Moon
Can you please help me with this question?
Answers
Answer:
A. 3
Step-by-step explanation:
since it is just reflected the length dosen't change
help me with this and ill give you brainliest
Answers
Answer:
C
Step-by-step explanation:
Trust me on this one
Q3) Explain the Error: When Rashed found the difference -11 - (-4), he got-
15. What might Tom have done wrong?
Help
Answers
But if we difference we get 7.
Because - and - =+
So
-11+4=7.
Eileen collected 78 empty cans to recycle, and Carl collected 62 cans. They packed an equal number of cans into each of seven boxes to take to the recycling center. How many cans were in each box?
Answers
Answer:
20 cans
Step-by-step explanation:
Eileen collected 78 empty cans to recycle
Carl collected 62 empty cans to recycle
They pack equal number of cans in 7 boxes
Therefore the number of cans in each boxes can be calculated as follows.
= 62 + 78/7
= 140/7
= 20
Hence there were 20 cans in each boxes
The diameters of ball bearings are distributed normally. The mean diameter is 130 millimeters and the variance is 9. Find the probability that the diameter of a selected bearing is greater than 135 millimeters. Round your answer to four decimal places.
Answers
Answer:
0.0478
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = 135 mm
μ is the population mean = 130 mm
σ is the population standard deviation.
We are given variance = 9
Standard deviation = √variance = √9 = 3
Hence
z = 135 - 130/3
z = 1.66667
Probability value from Z-Table:
P(x<135) = 0.95221
P(x>135) = 1 - P(x<135) = 0.04779
Approximately to 4decimal places = 0.0478
Which statement best describes the behavior of the graph of 3x − 4y = 8?
A. The graph is a vertical line.
B. The graph is a horizontal line.
C. The graph is rising as x increases.
D. The graph is falling as x increases.
Answers
-4y = -3x + 8
y = 3/4x - 2
Since there is a positive slope, the line is increasing
Solution: C
Answer:
I don't know the question answer surely but I think that A is the correct one
BRAINLIEST! As a dolphin swims along the side of a cruise ship, he jumps to a height of seven meters above the water surface and dives to a depth of seven meters below the surface. He does this in a regular motion (simple harmonic motion). A passenger starts a stopwatch just as the dolphin is coming up to the surface. The passenger determines that the dolphin completes one cycle every 6 seconds.
Answers
PLS! MARK ME AS A BRAILIEST......
Add the expressions: 9(20m - 5) + (m +7)
Answers
Answer:
181m - 38
Step-by-step explanation:
Hey there!
9(20m – 5) + (m + 7)
DISTRIBUTE
9(20m) + 9(–5) + m + 7
9(20m) + 9(–5)
9(20m) = 180m
9(–5) = -45
NEW EQUATION: 180 – 45 + m + 7
COMBINE your LIKE TERMS
(180m + m) + (–45 + 7)
“m” itself is understood as an invisible 1!
180m + m = 181m
–45 + 7 = –38
NEW EQUATION: 181m – 38
ANSWER: 181m – 38 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
simplify this Problem 1.5 x 1.5
Answers
Answer:
2.25
Step-by-step explanation:
1.5 times 1.5 is 2.25
"simplify" just means to solve in ur case..
Hope this helps!!
1.5 multiplied by 1.5 equals 2.25.
To simplify the problem 1.5 x 1.5, you can multiply the two numbers together.
To calculate this, you can follow these steps:
Multiply the first digit of the first number (1) by the first digit of the second number (also 1): 1 x 1 = 1.
Multiply the decimal parts of both numbers: 0.5 x 0.5 = 0.25.
Add the results from step 1 and step 2 together: 1 + 0.25 = 1.25.
The final answer is 1.25, but we need to consider the decimal places. Since both numbers have one decimal place, the final answer will have two decimal places: 2.25.
Therefore, 1.5 x 1.5 simplifies to 2.25.
Learn more about multiplication click;
https://brainly.com/question/11527721
#SPJ6
Help plis! Someone I need help with this plis
Answers
Answer:
I think the answer is B
Find the degree of the polynomial.
Answers
Answer:
Degree of the polynomial = 3
Step-by-step explanation:
The given polynomial is [tex]18x^3y^2[/tex]
There are two variables in this polynomial i.e. x and y.
The exponent of x is 3 and that of y is 2.
We need to find the degree of the polynomial.
The degree of the polynomial is defined as the highest degree of any of the term.
In this case, the degree of polynomial is 3 as it has highest power than the power of y.
A basketball player scored 288 points in 9 games. Use the unit rate to find how many points the player would score in 5 games.
Answers
Answer:
160 Points in 5 Games
Step-by-step explanation:
The given information will be used as the first ratio. 288 points / 9 games. To find out how many points this player would score in 5 games, we use another ratio with the unknown value, x. This would be x points / 5 games. Put the ratios equal to each other and cross multiply. You will get a final answer of 160.
write the polynomial function f of least degree that has rational coefficients , a leading coefficient of 1, and the given zeros 2 -3i 4
Answers
Answer: it might be the answer in the picture sorry if im wrong
Step-by-step explanation:
use the graph below to find the cost of 6 show tickets.
A. the cost of six show tickets
B. The cost of 6 show tickets is $6.
C. The cost of 6 show tickets is $30.
D The cost of 6 show tickets is $5
Answers
Answer:
C. The cost of show tickets is $30
Step-by-step explanation
The perimeter of an equilateral triangle is 17 cm less than the
perimeter of a rectangle.
The length of one side of the triangle is 5 cm.
a Construct an equation for the perimeter of the rectangle.
.......................
b What is the perimeter of the rectangle?
.......................
c The rectangle is 3 times as long as it is wide.
Construct and solve an equation to find the longest side length
of the rectangle.
Answers
Answer:
To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. Then find the answer.
Match each proportion to its solution.
Answers
Answer:
x/10=-30/100 : -3
5/35 = 1/a : 7
2/x = 100/15 : .3
12/k = 4/1 : 3
2/8 = g/4 : 1
Step-by-step explanation:
The coordinates of points A and B are A (7, -2) and B (47, 68). Which are the coordinates of a point that partitions segment AB in a ratio of 1:4?
Answers
Step-by-step explanation:
The coordinates of the point is (15, 12).
Point dividing the line segment AB in the ratio of 1 : 4 will have the coordinates as (15, 12)
Coordinates of a point dividing a segment in two parts: If a point (h, k) divides a segment having extreme ends (x₁, y₁) and (x₂, y₂) in the ratio of m : n, coordinates of the point will be,
[tex]h=\frac{mx_2+nx_1}{m+n}[/tex], [tex]k=\frac{my_2+ny_1}{m+n}[/tex]
If a segment having extreme ends A(7, -2) and B(47, 68) is divided by a point P(h, k) in the ratio of 1 : 4
h = [tex]\frac{1(47)+4(7)}{1+4}[/tex]
h = 15
k = [tex]\frac{1(68)+4(-2)}{1+4}[/tex]
k = 12
Therefore, coordinates of the point dividing the segment AB in the ratio of 1 : 4 will be (15, 12).
Learn more about the ratios of a directed line segment here,
https://brainly.com/question/16452339?referrer=searchResults
What is the slope of a line perpendicular to the line whose equation is
2x + 4y=-64. Fully reduce your answer.
Answers
Answer:
[tex]- \frac{1}{2}[/tex]
Step-by-step explanation:
How do we find the line that's perpendicular to another?
We find the negative reciprocal. So for example if our slope is 2, the negative reciprocal would be [tex]- \frac{1}{2}[/tex].
The 600 mile, Texas Gulf Coast has various barrier islands that protect the coast from storms. If each barrier island is an average of 75 miles in length, how many barrier islands are there?
Answers
Answer: 8 barrier island.
Step-by-step explanation:
From the question, we are informed that Texas Gulf Coast is about 600 miles and that it has various barrier islands that helps protect the coast from storms.
We are further told that each barrier island is an average of 75 miles in length. Therefore, the number of barrier islands that are there will be gotten by dividing 600 by 75. This will be:
= 600 / 75
= 8 barrier island
ANSWER PLSSS!!!!
When is Ann's distance from home increasing? Give a reason to support your answer
Answers
Answer:
when the #8 lines up with he 40
plz help (will make brainliest!)
Answers
Which value should she use for X? Round to the nearest hundredth.
0.09
0.20
0.25
0.30
Answers
Answer:
A
Step-by-step explanation:
Just took the Semester exam and had this question on it, I got it right
Answer:Person on top is wrong its
Step-by-step explanation:
D =0.30
A walking path at a park is 3/5 miles long. Paola walks on this path, completing each lap in 1/25 of an hour. What is Paola's running speed, including a unit of measure?
Answers
Answer:
15miles//hr
Step-by-step explanation:
From the question, we are given;
Distance covered by Paola = 3/5 miles
Time = 1/25 of an hour
Speed = Distance/ time
Substitute
Speed = (3/5)/(1/25)
Speed = 3/5 * 25/1
Speed = 3 * 5
Speed = 15
Hence Paola's running speed in miles per hour is 15miles/hr
Evaluate each expression. Enter the correct answers in the boxes. (60−6)×(13)3+27÷3= ( 60 − 6 ) × ( 1 3 ) 3 + 27 ÷ 3 = 82÷4×(2+3)−9= 8 2 ÷ 4 × ( 2 + 3 ) − 9 = Ʃ 789+Plus456-Minus123×Multiplied by0.,÷Divided byemptyemptyBackspace=Equals
Answers
Answer:
2115
Explanation:
To evaluate the expression (60−6)×(13)3+27÷3 we use BODMAS
BODMAS is an acronym/rule in mathematics that dictates the order we should solve mathematical operations such as the above.
BODMAS stands for bracket first, order or of, division, multiplication, addition and then lastly subtraction
To solve the expression using BODMAS, we solve the brackets first
(60−6)×(13)3+27÷3 =54×39+27/3
Then division
=54×39+9
=2106+9
Then addition
=2106+9=2115
Answer=2115
Which of the following is a linear function?
y= 5x
y=x + 1
6x = y - 4
y= 8x²
Answers
Answer:
y=5x
Step-by-step explanation:
Please I need some answers
Answers
Answer:
He needs 3 packs of hot dogs and 2 packs of hot dog buns. He has 4 hot dogs and 4 hot dog buns left over.
Step-by-step explanation:
Because 8 x 3 = 24 and 12 x 2 = 24
But since he needs enough for 20 people he would have 4 hot dogs and 4 hot dog buns leftover.