Answer:
2) The number is 4, 3) The number is 36, 4) The number is 16, 5) The number is 32, 6) The consecutive numbers are 14 and 15, 7) The solution of this system is: [tex]x = 17[/tex], [tex]y = 13[/tex], 8) The solution of this system is: [tex]x = 58[/tex], [tex]y = 60[/tex].
Step-by-step explanation:
Now we proceed to solve arithmetically on each statement:
2) Statement is incorrect, correct form is: Find [tex]x[/tex] if the product of [tex]x[/tex] by 12 is 48.
Mathematically speaking, we have the following formula:
[tex]12\cdot x = 48[/tex]
[tex]x = 4[/tex]
The number is 4.
3) Mathematically speaking, we have the following formula:
[tex]\frac{3\cdot x}{6} = 18[/tex]
[tex]\frac{x}{2} = 18[/tex]
[tex]x = 36[/tex]
The number is 36.
4) Mathematically speaking, we have the following formula:
[tex]\frac{5\cdot x}{4} = 20[/tex]
[tex]x = 16[/tex]
The number is 16.
5) Mathematically speaking, we have the following formula:
[tex]\frac{x}{2} = 16[/tex]
[tex]x = 32[/tex]
The number is 32.
6) Let be [tex]n[/tex] and [tex]n + 1[/tex], whose sum equals 29. Mathematically speaking, we have the following formula:
[tex]n + (n +1) = 29[/tex]
[tex]2\cdot n + 1 = 29[/tex]
[tex]n = 14[/tex]
The consecutive numbers are 14 and 15.
7) Let be [tex]x[/tex] and [tex]y[/tex] the quantities of pink and yellow roses. Mathematically speaking, we have the following system of linear equations:
[tex]x - y = 4[/tex] (1)
[tex]x + y = 30[/tex] (2)
The solution of this system is: [tex]x = 17[/tex], [tex]y = 13[/tex]
8) Let be [tex]x[/tex] and [tex]y[/tex] the numbers of grade 6 and grade 3. Mathematically speaking, we have the following system of linear equations:
[tex]x-y = -2[/tex] (3)
[tex]y = 60[/tex] (4)
The solution of this system is: [tex]x = 58[/tex], [tex]y = 60[/tex]
Simplify: 4 - 16
20
12
-20
-12
Q) 4 - 16 = ?
→ 4 - 16
→ [ -12 ]
The answer is -12.
Find the value of x in the figure.
Answer:
X=100
Step-by-step explanation:
180-57= 123
123-23=100
Pls help ! I have a couple of minutes left.
Answer:
The building would be about 77 feet!
Step-by-step explanation:
Brainliest Please!
please please i need help i did not understand it
Answer:
h = 20 ftStep-by-step explanation:
Given,
Volume = 5600 sq.ft
Length = 35 ft
Width = 8 ft
Therefore,
By the problem,
[tex]height = \frac{volume}{length \times width} [/tex]
[tex] = > h = \frac{5600}{35 \times 8} ft[/tex]
=> h = 20 ft (Ans)
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Answer:
Volume = lwh
V = 1.6 x 2.8 x 3.2
V = 14.336
V = 14.3 cubed
Yellow is the right answer.
Check the pic
With steps please
If u send a link I will report
Answer:
I believe the answer to be A
Step-by-step explanation:
First plug in 2 for x
next solve the equation/ 2 and 2 is 4 so 4 +1 is 5
next 3 of 2 is 6 and 6-1 is 5
so as a result both sides are b=5
A company categorizes its employees in three groups: I, II, and III, which constitute 20%, 60%, and 20% of the workforce respectively. Furthermore, 10%, 20%, 5% employees of group I, II, III respectively are considered certified. Given that a randomly picked employee is not certified, what is the probability that this employee belongs to group I?
Answer:
the probability that this employee belongs to group I is 0.2118
Step-by-step explanation:
Given the data in the question;
P( group 1 ) = 0.20
P( group 11 ) = 0.60
P( group 111 ) = 0.20
now
[tex]P( \frac{certified}{Group1} )[/tex] = 0.10
[tex]P( \frac{Not-certified}{Group1} )[/tex] = 0.90
[tex]P( \frac{certified}{Group11} )[/tex] = 0.20
[tex]P( \frac{Not-certified}{Group11} )[/tex] = 0.80
[tex]P( \frac{certified}{Group111} )[/tex] = 0.05
[tex]P( \frac{Not-certified}{Group111} )[/tex] = 0.95
so
[tex]P( \frac{group1}{Not-certisfied} )[/tex] = [ [tex]P( \frac{Not-certified}{Group1} )[/tex] × P( group 1 ) ] / [ [tex]P( \frac{Not-certified}{Group1} )[/tex] × P( group 1 ) + [tex]P( \frac{Not-certified}{Group11} )[/tex] × P( group 11 ) + [tex]P( \frac{Not-certified}{Group111} )[/tex] × P( group 111 ) ]
we substitute
[tex]P( \frac{group1}{Not-certisfied} )[/tex] = [ 0.90×0.20 ] / [ 0.90×0.20 + 0.80×0.60 + 0.95×0.20
[tex]P( \frac{group1}{Not-certisfied} )[/tex] = 0.18 / [ 0.18 + 0.48 + 0.19 ]
[tex]P( \frac{group1}{Not-certisfied} )[/tex] = 0.18 / 0.85
[tex]P( \frac{group1}{Not-certisfied} )[/tex] = 0.2118
Therefore, the probability that this employee belongs to group I is 0.2118
What is the volume of a sphere with a surface area of 196 π ft2 ? Question 12 options: 1372/ 3 π ft3 457/ 3 π ft3 226/ 3 π ft3 420 π ft3
Answer:
1372/3
Step-by-step explanation:
13 A shoe company is going to close one of its two stores and combine all the inventory from both stores. These polynomials represent the inventory in each store: 1 Store A: 7 + 2 2 Store B: 392 - 1 g+ 5 4 Which expression represents the combined inventory of the two stores?
Answer:
[tex]\frac{7}{2}g^2-\frac{4}{5} g+\frac{15}{4}[/tex]
Answer is A
hope this helps
PLEASE PLEASE HELP!!!!!
I NEED HELP WITH EDMENTUM PLATO
ALGEBRA 2!
IF ANYONE HAS ANSWERS PLEASE SEND THEM
Answer:nonononononnj
Step-by-step explanation:
Help will be super appreciated !
Which expression is equivalent to 63 + 27?
A. (9 x 7)(
93)
B. 9(7 + 3)
C. (9 + 7)(9 + 3)
D. 9 + (7 * 3)
Complete the table for the following function y = (one-third) Superscript x x -3 -2 -1 0 1 2 3 y 3 1 One-third Graph the function and describe what the graph looks like. a. Increases in Quadrant I b. Increases from left to right c. Decreases from left to right d. Decreases in Quadrant III
The correct answer is option c.
How graph is analyzed?
If we have function, then first we will find ordered pairs then will draw the graph and then will analyze the changes in the graph.
What will be the complete table?Compute the y values of the function at the given x values by substituting all the x values into the given function individually and make a table like Fig 1.
What will be the graph?We will draw all the points of the table on the graph and will join them.
What is the conclusion from the graph?From the graph, it is clearly visible that the curve is decreasing while moving from left to right.
Therefore, the correct option is c.
Learn more:
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Answer:
c. decreases from left to right
Step-by-step explanation:
Correct on edge
Find two positive numbers whose difference is 15 and whose product is 154.
NO LINKS
Quick help what is 4 2/9 divided by 1/3
Answer:
[tex]12\frac{2}{3}[/tex]
Step-by-step explanation:
graph shows the favorite colors chosen by some middle school students. Favorite Colors Red Yellow Orange Blue Color Green Black Pink Purple 0 1 2 3 4 5 6 7. 8 9 10 Number statement is supported by the information in the graph?
Answer:
A
Step-by-step explanation:
you get the numbers then divide after you have multiplied and then just find the distribution of the subtracted number :)
Data was collected from a simple random sample of 200 cell phone users age 18 or older in the United States. Each user was categorized by age-group and by whether he or she uses a certain cell phone app. The table shown summarizes the data, with expected cell counts in parentheses.
Uses Cell Phone App
Yes No Total
Age-Group Young Adults 4 (15.2) 76 (64.8) 80
Older Adults 29 (19.38) 73 (82.62) 102
Elderly Adults 5 (3.42) 13 (14.58) 18
Total 38 162 200
Which statement is true about whether the conditions for a chi-square test for independence have been met?
A. All necessary conditions are satisfied to apply a chi-square test for independence between age group and texting use by cell phone users.
B. The data from the different age groups are not the result of independent random samples; therefore, the conditions for the test are not met
C. The total sample size in one or more of the age-groups is too small to meet the conditions of the chi-square test for independence.
D. Not all of the observed cell counts are large enough to satisfy the conditions for the chi-square test for independence.
E. Not all of the expected cell counts are large enough to satisfy the conditions for the chi-square test for independence
Answer:
D
Step-by-step explanation:
i took it
Answer:
d
Step-by-step explanation:
my stats teacher went over it
value of 180 when b = 4
Answer:
the answer is 45
Step-by-step explanation:
(180/4)=45
• plot the two points
• draw the hypotenuse
• complete the triangle
• use the Pythagorean theorem to find the distance between the
given points
• show all your work
• leave answers in simplest radical form.
1. (3, 4), (-2, 6)
У
61
.
2
10
8 9 10
9514 1404 393
Answer:
√29
Step-by-step explanation:
We can call the given points A(3, 4) and B(-2, 6).
The right triangle with segment AB as a hypotenuse can best be drawn along grid lines. Then the vertical leg is the difference of y-coordinates: 6-4 = 2, and the horizontal leg is the difference of x-coordinates: 3 -(-2) = 5.
The Pythagorean theorem tells you the square of the hypotenuse is the sum of the squares of the legs.
AB² = 2² + 5²
AB² = 4 + 25 = 29
Taking the square root, we find the length of the line segment between the points to be ...
AB = √29
Help #2-8 please thank you !
Company XYZ will pay a death benefit of $1000 to each of its 5000 employees who die in the upcoming year. There is 3% chance that an employee will die in the upcoming year. Determine the amount of funds that Company XYZ needs to have if the company wants to have a 95% probability of having sufficient money to pay the benefits. (You may ignore the continuity correction.)
Answer:
idc
Step-by-step explanation:
A potato chip company produces a large number of potato chip bags each day and wants to investigate whether a new packaging machine will lower the proportion of bags that are damaged. The company selected a random sample of 150 bags from the old machine and found that 15 percent of the bags were damaged, then selected a random sample of 200 bags from the new machine and found that 8 percent were damaged. Let p^O represent the sample proportion of bags packaged on the old machine that are damaged, pˆN represent the sample proportion of bags packaged on the new machine that are damaged, pˆC represent the combined proportion of damaged bags from both machines, and nO and nN represent the respective sample sizes for the old machine and new machine.
Required:
Have the conditions for statistical inference for testing a difference in population proportions been met?
Answer:
The conditions for the approximation have been met
Step-by-step explanation:
Random samples on both cases and
p∧o proportion of bags packaged on the old machine that are damaged
p∧n sample proportion of bags packaged on the new machine that are damaged
p∧c = ( p∧o + p∧n ) / (nO + nN )
p∧o = 15 % p∧o = 0,15 nO = 150
p∧o * nO = 0,15 *150 p∧o * nO = 22,5
p∧n = 8 % p∧n = 0,08 nN = 200
p∧n*nN = 0,08 * 200 p∧n*nN = 16
Both p∧n*nN and p∧o * nO are bigger than 5
Therefore both samples are big enough for the approximation of the binomial distribution to normal distribution
A study of fox rabies in southern Germany gave information about different regions and the occurrence of rabies in each region. A random sample of 16 locations in Region 1 yielded a mean of 4.75 cases of rabies with a standard deviation of 2.8 cases. An independent sample of 15 locations in Region 2 yielded a mean of 3.93 cases with a standard deviation of 2.4 cases. If you want to test whether the average number of rabies cases in Region 1 is greater than the average number of rabies cases in Region 2, which is the appropriate Data Analysis tool
Answer:
Two independent sample t test
Step-by-step explanation:
The research described describes the statistics of two different samples which are also independent,
Sample 1 :
Sample size, n1 = 16
Mean, xbar = 4.75
Standard deviation s2 = 2.8
Sample 1 :
Sample size, n1 = 15
Mean, xbar = 3.93
Standard deviation s2 = 2.4
The hypothesis :
H0 : μ1 = μ2
H1 : μ1 ≠ μ2
The t statistic :
(xbar1 - xbar 2) ÷ sqrt[(s1²/n1 + s2²/n2)
From on the test statistic, obtain the p value and compare with Given α - value to make and conclude in a decision.
5. Higher Order Thinking Write two
addends that you will NOT need to make
a 10 to add. Then solve.
+
Answer:
Here we have a math thinking case.
Usually when we add two numbers, we try to deconstruct the numbers in such a way that the sum is easier. One thing that we always try to do, is to make a 10.
For example, in;
4 + 9
We know that 9 = 6 + 3
Then we can write:
4 + (6 + 3)
And re do the sum as:
(4 + 6) + 3
10 + 3 = 13
Now, we want to apply the same principle, but this time we don't want to make a 10.
We also can, for example, make a 5, like in:
2 + 13
We know that 2 + 3 = 5
then:
2 + 13 = 2 + (10 + 3) = 2 + 3 + 10 = 5 + 10 = 15
Other similar example:
2 + 7
We know that we can rewrite 7 as 3 + 4
Then:
2 + (7) = 2 + (3 + 4) = 2 + 3 + 4 = 5 + 4 = 9
This is not exactly easier, but in some cases can be useful.
The equations that can be used to represent the addends are: 2 + 6 = 8 and 3 + 4 = 7
When a 10 is not needed to add, then the sum of the two numbers is less than 10, or the numbers in the expression are greater than 10.
Using the above highlight, the equations that can be used to represent the addends are:
2 + 6 = 8
3 + 4 = 7
Note that there are other equations that can represent this situation
Read more about addends at:
https://brainly.com/question/654494
The sum of the two numbers is 40 and the difference is 6. What are the numbers?
ALEKS QUESTION
Answer:
17 + 23 = 40
23 - 17 = 6 the other person did it right.
Find the value of x in the triangle shown below 8 2
In the triangle in question, x has a value of √68. The triangle is right - angled triangle based on the dimensions provided. According to this, the neighboring angle will also be x°.
What is an angle?An angle is a shape made up of two rays that share a terminus and is designated by the name of the angle (the vertex).
The plane that contains the rays contains the angles created by two beams. The meeting of two planes might also result in an angle. These are referred to as dihedral angles.
An angle is created when two straight lines or rays intersect at the same point. The point where all points converge is known as an angle's vertex.
The Roman word angulus, which means "corner," is where the term "angle" comes from. In plane geometry, an angle is a shape made up of two rays or lines with the same termination.
In the triangle in question, x has a value of √68.
The triangle is right- angled triangle based on the dimensions provided. According to this, the neighboring angle will also be √68.
Therefore, a given triangle's angles will all be expressed mathematically as -
Using Pythagoras theorem,
[tex]x^{2} = 8^2 + 2^2\\x^{2} = 64 + 4\\x^{2} = 68\\x = \sqrt{68}[/tex]
As a result, the given triangle's x value is √68.
To learn more about the angle, refer to:
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The sphere on the left has radius
and a volume equal to 60 units. Find
the volume of the sphere with twice
the radius.
Answer:
480 units ^3
Step-by-step explanation:
it was on the key but im not sure how to solve it
Helpppp plssssss anyoneeeeee
Answer:
D. y=3x+4
This is the correct answer
Line L is parallel to line M if the measure of angle six is 75 what is the measure of angle one