Answer:
0.4521
Step-by-step explanation:
Answer:
0.4521
Hope this helps! :)
a contractor was paving a driveway he mixed 4/7 ton lf sand and 1/3 ton of concrete how much did the mixture weigh
Answer: 19/21
Step-by-step explanation: find the same multiple for both so you can combine them
Helppppp pleaseeeeee asapppp
Yo please help I’ll mark you brainliest
Answer:
1116units²
Step-by-step explanation:
area of trapezium= (a+b)h all over 2
a=38
b=55
h=24
area= (38+55)*24 allover 2
area= 1116units²
The triangle shown below has an area of 16 units^2
Answer:
8
Step-by-step explanation:
base x height / 2 = the area
4 x h / 2 = 16
h = 8
so x is 8
Answer:
8
Step-by-step explanation:
i just took the quiz
Please answer this thanks
[tex]1) \longrightarrow\boxed{ \bf \: Vertical \: angles} \: ( \sf \: they \: share \: the \: same \: vertex) \\ 2) \longrightarrow\boxed{\bf \: Adjacent \: angles} \: ( \sf \: they \: are \: located \: next \: to \: each \: other)[/tex]
1. The graph of f(x) = x^2 was transformed to create the graph of g(x) = f(x) + 11. Which statement about the graphs is true?
A. The y-intercept of the graph of g is 11 units above the y-intercept of the graph of f
B. The vertex of the graph of g is 11 units to the right of the vertex of the graph of f
C. The graph of g is a reflection of the graph of f across the y-axis
D. The of g is a reflection of the graph of f across the x-axis
2. The graph of g (x) = x^2 was transformed to create the graph of h (x) = 3x^2. Which of these describes the transformation from the graph of g to the graph of h?
A. A vertical stretch by a factor of 3
B. A vertical compression by a factor of 3
C. A reflection over the x-axis
D. A vertical shift up 3 units
3. The graph of f (x) = x^2 was transformed to create the graph of g (x) = 1/4x^2. Which of these describes this transformation?
A. The graph shows a vertical compression
B. The graph is a reflection across the x-axis
C. The graph shows a shift up
D. The graph shows a vertical stretch
15. Find the area of the circle. Use 3.14 as pie. Round to the nearest tenth. Include units. The radius is 4 inches.
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 50.24
Explanation:
3.14(4)^2 = 50.24
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: A=50.2
Step-by-step explanation:
using 3.14 as pie...
A=3.14[tex]r^{2}[/tex]
A=3.14x[tex]4^{2}[/tex]
A=3.14x16
A=50.24
rounding to nearest tenth..
A=50.2
Can someone please help me out?
Answer:
x | f(x)0 | 02 | 25 | 39 | 110 | 0Step-by-step explanation:
On the left side of the chart, is the x values. The x values are listed on the x axis which is the horizontal line.
The right side of the chart are the y values. The y values are listed on the y axis which is the vertical line.
Knowing this, we can start
First, for all the answer that we know the x value, we need to find the number that matches on the x axis. Once we find that number, we go up or down on the y axis until we find the line.
If we know the y value, we need to find the number that matches on the y axis. Then we will go right until we find the line.
Remember - There CAN NOT be two y values for the same x value but THERE CAN BE two x values for the same y value
A bag contains 7 blue, 4 yellow, 4 green, and 5 red marbles. Find the probability of choosing a green marble without looking. Mark only one oval. Dood
Answer:
1/4
Step-by-step explanation:
total balls=7+4+4+5=20
probability of green marble=?
green marbles are 5 so,
Probability=number of favourable outcomes / number of all possible outcomes
total outcomes=20
green ball chances=5
=5/20
=1/4
Which box plot matches the date set 34,36,41,45,49,50,51,52,56,59
Answer:
D
Step-by-step explanation:
The box has to go from the first to the third quartile and that one does and c isn't correct because the line isn't at the median.
Find the value of x
Answer:
v=53
Step-by-step explanation:
90-37=53
Find the slope of the
(4,5), (6,2)
Answer:
Answer and steps are in picture.
what is the area of the figure?
name types of angles in geometric figures
Answer:
obtuse angle,acute angle,right angle,straight angle hope it helps
Mr. Turner bought x boxes of pencils. Each box holds 25 pencils. He left 3 boxes of pencils at home and took the rest to school. Write a function rule that represents the total number of pencils he took to school.
Answer:12
Step-by-step explanation:I divided 3 by 120 and got 0.12 take the zesty out and the demical
Michaels front door has a permit perimeter of 26 feet the width of the doors 4 feet what is the length of the door
Answer:
I'm pretty sure it's 9. Hope this helps!:)
Kendall worked 25.5 hours one week.
If he earns $12.50 per hour, how
much did he earn that week? How did
you know where to put the decimal
point?
The given data set shows the distance traveled, in miles, by customers to a bookstore event to meet their favorite author.
40, 35, 44, 90, 23, 25, 28, 35
Which data value is considered an outlier?
Answer:
90
Step-by-step explanation:
It is a large distance compared to the others
Answer:
90
Step-by-step explanation:
I took the k12 quiz, hope this helps. :)
The life in hours of a biomedical device under development in the laboratory is known to be approximately normally distributed. A random sample of 15 devices is selected and found to have an average life of 5625.1 hours and a sample standard deviation of 226.1 hours.
Required:
a. Construct and interpret a 95% (two sided) confidence interval for the population standard deviation of the life of a biomedical device.
b. Test the hypothesis that the true mean life of a biomedical device is greater than 5500 using the P-value approach.
Answer:
Part a [5522.3511 ; 5727.8488]
Part b. The p-value is 0.050115.
The H0 is rejected and concluded that the true mean life of a biomedical device is greater than 5500.
Step-by-step explanation:
The 95 % confidence interval for the mean of the population is given by
∝= 1- 0.95= 0.05
υ= n-1= 15-1= 14
x`± t ∝() s / √n
5625.1 ± { t (0.05) (14)} 226.1 / √15
5625.1 ± 1.76 * 226.1/3.8729
5625.1 ± 102.7488
[5522.3511 ; 5727.8488]
Part b
State the null and the alternate hypothesis
H0: u= 5500 against the claim Ha: u > 5500
the test statistic
t= x`- u/ s/ √n
t= 5625.1-5500/226.1 / √15
t=2.143
The p-value is 0.050115.
The result is not significant at p < 0.05.
The H0 is rejected and concluded that the true mean life of a biomedical device is greater than 5500.
What is the answer? Please tell me soon.
Answer:
61
Step-by-step explanation:
it's only 1 number difference
Seventy-five college students are taking part in a study initiated by a large computer manufacturer. The company is designing a new type of laptop computer and has created prototypes of it with two different keyboard designs. They are also including the current design of the laptop in the experiment. Each of the students was randomly assigned to one of the three types of computers. The students are asked to spend 15 minutes on one of the computers performing several tasks (typing words, numbers, making corrections, etc.). The ease of use of the keyboard was then rated on a five-point scale by having the students fill out a short questionnaire. Which of the following was not used in this experiment?
a. control
b. replication
c. blocking
d. randomization
Answer:
c
Step-by-step explanation:
blocking is not used in this experiment
The table below lists the number of layers of centimeter cubes, along with the number
of cubes in each layer, in each of four rectangular prisms.
LAYERS OF CUBES IN RECTANGULAR PRISMS
Prism
Number of
Layers
Number of Cubes
in Each Layer
R
3
8
S
5
5
T
6
5
U
7
4
Which rectangular prism has the greatest volume?
A Prism R
B Prism S
C Prism T
D Prism U
Answer:
The answer would be C: Prism T
Step-by-step explanation:
R=3x8=24 cubes
S=5x5=25 cubes
T=6x5=30 cubes
U=7x4=28
Therefore, T is biggest
A store owner has 12 pounds of pasta worth 70¢ a pound. She wants to mix it with
pasta worth 45¢ a pound so that the total mixture can be sold for 55¢ a pound
(without any gain or loss). How much of the 45¢ pasta must she use?
Answer:
The store owner must use 18 pounds of the 45 ¢ pasta.
Step-by-step explanation:
Given that a store owner has 12 pounds of pasta worth 70 ¢ a pound, and she wants to mix it with pasta worth 45 ¢ a pound so that the total mixture can be sold for 55 ¢ a pound, to determine how much of the 45 ¢ pasta must she use, the following calculation must be performed:
100 x 0.7 + 0 x 0.45 = 70
90 x 0.7 + 10 x 0.45 = 67.5
50 x 0.7 + 50 x 0.45 = 57.5
40 x 0.7 + 60 x 0.45 = 55
40 = 12
60 = X
60 x 12/40 = X
720/40 = X
18 = X
Thus, the store owner must use 18 pounds of the 45 ¢ pasta.
Coin Calculation plz help
Answer:
You didnt add a question, file or possible answer choices
A teacher buys packs of notebooks to give to his students. The ratio of gold notebooks to red notebooks is represented in the tape diagram.
Answer:
40 gold notebooks
Step-by-step explanation:
5:3 gold notebooks to red notebooks so using this we can set up a proportion
5 x
-- = ---
3 24
cross multiplying
3x = 120
x= 40
so there are 40 gold notebooks if there are 24 red notebooks
Answer: Answer above is right. Kudo's to him
Step-by-step explanation:
A woman bought some large frames for $13 each and some small frames for $6 each at a closeout sale. If she bought 18 frames for $136, find how many of each type
she bought
She bought large frames
vie
Answer:
she bought 4 large frames and 14 small frames!
Step-by-step explanation:
This is a system of equation problem!
let's say that x= large frames and y=small frames.
since there's 18 total, we already have our first equation set.
x+y=18
(number of large frames) + (number of small frames)= 18
13x would represent the large frames because each one is 13 dollars.
6y would represent the small frames because each one is 6 dollars.
Since she paid 136 dollars total, we can already tell that
13x+6y=136
(price of large frames*number of large frames) + (price of small frames*number of small frames)=136.
Now, time for the math!
Attached below is how you would work it out using substitution.
Hope this helps!
x=4 and y=14
Meaning that she bought 4 large frames and 14 small frames!
g(x) = -4x+4
h(x)= x³+4x²
find g(x)•h(x)
Answer:
4x^4-12x^3+16x^2
Step-by-step explanation:
(-4x+4)(x^3+4x^2)
a b c d
using foil method multiply
term a by term c and d
-4x * x^3= -4x^4
-4x * 4x^2= -16x^3
*dont forget to add the exponents, when x is by itself you it always has an imaginary 1
then multiply term b by term c and d
4 * x^3= 4x^3
4 * 4x^2= 16x^2
line up all of your answers from biggest exponent to smallest
-4x^4-16x^3+4x^3+16x^2
we can combine like terms with -16x^3 and 4x^3 becaus ethey have the same exponent value
4x^4-12x^3+16x^2
which of the following is the equivalent to the radical expression below when x> 0
square foot 12x^3 + Square root 6x
Answer:
i think it is b
Step-by-step explanation:
The equivalent to the radical expression will be x√2. Then the correct option is C.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The expression is given below.
⇒ √(12x³) ÷ √(6x)
Simplify the expression, then we have
⇒ √(12x³) ÷ √(6x)
⇒ √(12x³ ÷ 6x)
⇒ √(2x²)
⇒ x√2
The comparable to the extreme articulation will be x√2. Then the right choice is C.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
A college student has two different jobs. Her combined work schedules consist of no more
than 48 hours in one week.
Which graph best represents the solution set for all possible combinations of x, the number of
hours she worked at her first job, and y, the number of hours she worked at her second job,
in one week?
Work Schedule
Work Schedule
54
42
36
30
с
Number of Hours Worked
54
48
842
36
30
24
18
12
6
24
18
12
6
0
6 12 18 24 30 36 42 48 54
Number of Hours Worked
at First Job
6 12 18 24 30 36 42 48 5x
Number of Hours Worked
at First Job
Work Schedule
Work Schedule
В
B
Number of Houn worked
48
42
36
30
24
18
12
6
D
Number of Hours Worked
Second Job
54
48
42
36
30
$24
18
12
6
0
6 12 18 24 30 36 42 48 54
Number of Hours Worked
at First Job
6 12 18 24 30 36 42 48 54
Number of Hours Worked
at First Job
Answer:
A
Step-by-step explanation:
I just did it and it was the correct answer !
Katya went to a craft store to buy beads. The table shows her choices.
Bead Packages
Number per Package
Cost
25
$1.25
70
$2.50
100
$2.95
180
$3.60
Which should Katya choose if she wants to buy the package of beads with the lowest unit cost?
O A. 25 beads for $1.25
B. 70 beads for $2.50
O C. 100 beads for $2.95
D. 180 beads for $3.60
Answer:
100 beads for $2.95
Step-by-step explanation:
This is because the unit cost per item if you buy 100 beads for $2.95 would be $0.03