Answer:
iron(Fe) - 2atoms
carbon(C) - 3atoms
oxygen (O)- 9atoms
Answer:
Iron which is Fe has 2 atoms
Carbon which is C has 3 atoms
Oxygen which is O has 9 atoms
Step-by-step explanation:
Hope it helps!
In 2005, the UT Longhorns scored 15 times to win the Big 12 Championship Game 70-3. All of their points came from touchdowns (6 points each) and extra point kicks (1 point each). How many touchdowns and extra points did the Longhorns have in that game? (For the purposes of this problem, touchdowns and extra point kicks count as separate "scores".
Answer:
The number of touch downs = 11
The number of extra points = 4
Step-by-step explanation:
The number of times UT Longhorns scored = 15 times
The composition of the scores = Touch down and point kicks
The points with which UT Longhorns won the game = 70-3
The points that came from each touch down = 6 points
The points that came from each point kick = 1 points
We have;
The number of touch downs + Point kicks = 15
The number of touch downs = 15 - Point kicks
Let the number of point kicks = P
Therefore;
The number of touch downs = 15 - Point kicks = 15 - P
The number of touch downs = 15 - P
Given that the total points of UT Longhorns = 70, we have;
6 × (15 - P) + 1 × P = 70
90 - 6·P + P = 70
5·P = 90 - 70 = 20
P = 4
∴ The number of point kicks = P = 4
The number of point kicks, extra points = 4
The number of touch downs = 15 - P = 15 - 4 = 11
The number of touch downs = 11
Watches and bacteria: A group of researchers investigated the contamination of medical personnel watches at a New York hospital, since there is a potential for patient exposure to potentially dangerous bacteria.They sampled watches worn by physicians, physician assistants, and medical students at a teaching hospital in New York. Nearly half (46.6%) of the watches tested harbored microorganisms that can cause illness. By comparison, only one of the 10 watches worn by security guards tested positive for a disease-carrying microorganism. The researchers want to determine if the difference is statistically significant.Which of the following is an appropriate statement of the null hypothesis, H0?A. The proportion of contaminated wrist-watches from medical personnel is the same as the proportion of contaminated wrist-watches from security guards, i.e., H0: p = 46.6%.B. The proportion of contaminated wrist-watches from medical personnel is not the same as the proportion of contaminated wrist-watches from security guards, i.e., H0: p not equal 46.6%.C. The proportion of contaminated wrist-watches from medical personnel is greater than the proportion of contaminated wrist-watches from security guards, i.e., H0: p > 46.6%.
An appropriate statement of the null hypothesis, H₀ is that: A. The proportion of contaminated wrist-watches from medical personnel is the same as the proportion of contaminated wrist-watches from security guards, i.e., H0: p = 46.6%.
What is a null hypothesis?In Mathematics, a null hypothesis (H₀) can be defined the opposite of an alternate hypothesis (Ha) and it asserts that two (2) possibilities are the same.
For an experiment to test the contamination of medical personnel wrist-watches at a New York hospital, the appropriate null hypothesis and alternative hypothesis would be given by this mathematical expression:
H₀: p = 10.
Ha: p < 10.
In this context, we can logically that the proportion of contaminated wrist-watches would be the same for both sample proportion i.e., H₀: p = 46.6%.
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A local water park found that if the price of admission was $19, the attendance was about 1550 customers per week. When the price of admission was dropped to $16,attendance increased to about 2350 per week. Write a linear equation for the attendance in terms of the price,p. (A = mp + b)
Given:
When the price of admission was $19, the attendance was about 1550 customers per week
And, when the price of admission was dropped to $16,
attendance increased to about 2350 per week
Let the attendance = A
And the price = p
The linear equation will be A = mp + b
Where (m) is the slope and (b) is the y-intercept
So,
When p = 19, A = 1550
When p = 16, A = 2350
So,
\(m=\frac{2350-1550}{16-19}=\frac{800}{-3}=-\frac{800}{3}\)So,
\(A=-\frac{800}{3}p+b\)we will find the value of (b) as follows:
\(\begin{gathered} 1550=-\frac{800}{3}\cdot19+b \\ 1550=-\frac{15200}{3}+b \\ b=\frac{19850}{3} \end{gathered}\)So, the answer will be the linear equation is:
\(A=\frac{-800}{3}p+\frac{19850}{3}\)Two less than the quotient of a number and 8 is 1/4.Find the number
For the given problem:
Let the number = x
Two less than the quotient of a number and 8 is 1/4
so, we can write the following expression:
\(\frac{x}{8}-2=\frac{1}{4}\)Now, solve the equation to find (x)
Multiplying by (8) to eliminate the denominators:
\(\begin{gathered} 8\cdot(\frac{x}{8}-2)=8\cdot\frac{1}{4} \\ \\ 8\cdot\frac{x}{8}-8\cdot2=\frac{8}{4} \\ x-16=2 \end{gathered}\)Add (6) to both sides:
\(\begin{gathered} x-16+16=2+16 \\ x=18 \end{gathered}\)So, the answer will be the number is 18
answer for brainly
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Answer:
2/5
Step-by-step explanation:
no of sample space , n(s) = 10
no. of probable cases, n(e) = 4
Probability of the arrow landing on a red section , P(e)
= n(e)/n(s)
= 4/10
= 2/5
Answer:
the answer is b, 2/5
Step-by-step explanation:
If u understand this May u help me please
Answer:
y=1/6x+2
Step-by-step explanation:
To start, you know what m is; it's just the slope, which you said was 1/6. So you can right away fill in the equation for a line somewhat to read:
y=1/6x+b.
Now, what about b, the y-intercept?
To find b, think about what your (x,y) point means:
(12,4). When x of the line is 12, y of the line must be 4.
Because you said the line passes through this point, right?
Now, look at our line's equation so far: . b is what we want, the 1/6 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (12,4).
So, why not plug in for x the number 12 and for y the number 4? This will allow us to solve for b for the particular line that passes through the point you gave!.
(12,4). y=mx+b or 4=1/6 × 12+b, or solving for b: b=4-(1/6)(12). b=2.
The Candle Company is having its seminual sale. All items are 40 percent off. If the original price of a candle basket is $120, what is the sale price
Answer:
the sale price would be $48
Step-by-step explanation:
To get the sale price you would have to find the decimal form of 40 which is 0.40. Then you multiply 0.40 by 120. And that is 48.00. So than the $48.00 becomes the sale price.
Hope that helps :)
write the equation of the line that contains the following points in standard form (16,-3),(-4,12)
Answer:
y = -3/4x + 9
Step-by-step explanation:
first, find the slope by taking the difference of the y-values / difference of the x-values
(-3-12) / (16-(-4)) which equals -15/20 or -3/4
now use that value to represent the 'm' in the formula in order to find 'b'
y = mx + b
-3 = -3/4(16) + b
-3 = -12 + b
9 = b
y = -3/4x + 9
Which equation does not represent a quadratic function?
A.Y = (x + 3)2
B. y = 3x2
C. y = 6x2–1
D. y= x + 5
Answer:
d
Step-by-step explanation:
i quadratic function has to have ^2 and in answer d there is no square
6. The graph of an exponential function is
shown. Write an equation for the function.
manu (3,13.5)
(2,4.5)
(1, 1.5)
olismolensando
On soloing the provided question, we can say that an equation from the graphs for the function. 3x + 13.5y = 4.5 and x+1.5y = 2
What is graphs?Mathematicians use graphs to logically represent or chart facts or values. Typically, a graph point will show the relationship between two or more objects. A graph is a non-linear data structure made up of nodes, or vertices, and edges. The nodes, also known as vertices, should be joined with glue. This graph's vertices are 1, 2, 3, and 5, while its edges are 1, 2, 1, 3, 2, 4, and 2.5. (3.5). (4.5). Graphical depictions of exponential growth in statistical charts (bar charts, pie charts, line charts, etc.). triangle-shaped logarithmic graph.
an equation for the function.
3x + 13.5y = 4.5
and x+1.5y = 2
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Apples are prepared in a process with two resources. The first resource has a capacity of 2.1 apples per hour. The capacity of the second resource is 4.4 apples per hour. The first resource has 1 worker and the second resource has 4 workers. Demand for this process is 1.6 apples per hour. Wages are $8 per hour.
What is the cost of direct labor (in $)?per unit
The cost of direct labor per unit is $5.628 per apple.
To calculate the cost of direct labor per unit, we need to determine the total labor hours required to produce one unit of output and then multiply it by the wage rate.
Let's denote the labor hours required for the first resource as "L₁" and the labor hours required for the second resource as "L₂".
The first resource has a capacity of 2.1 apples per hour, and the demand is 1.6 apples per hour. Therefore, the labor hours required for the first resource per unit of output are:
L₁ = 1 apple / (2.1 apples/hour) = 0.4762 hours/apple (rounded to 4 decimal places)
The second resource has a capacity of 4.4 apples per hour, and the demand is 1.6 apples per hour. Therefore, the labor hours required for the second resource per unit of output are:
L₂ = 1 apple / (4.4 apples/hour) = 0.2273 hours/apple (rounded to 4 decimal places)
Now, let's calculate the total labor hours required per unit:
Total labor hours per unit = L₁ (first resource) + L₂ (second resource)
= 0.4762 hours/apple + 0.2273 hours/apple
= 0.7035 hours/apple (rounded to 4 decimal places)
Finally, to calculate the cost of direct labor per unit, we multiply the total labor hours per unit by the wage rate:
Cost of direct labor per unit = Total labor hours per unit * Wage rate
= 0.7035 hours/apple * $8/hour
= $5.628 per apple (rounded to 3 decimal places)
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Type the correct answer in the box. Use numerals instead of words.
Use the order of operations to evaluate this expression:
7 + (5 – 9)^2 + 3(16 ÷ 8).
The value of the expression is?
Answer:
29
Step-by-step explanation:
Answer:
29
Step-by-step explanation:
Use the Coordinates panel to view the degrees of freedom of the model. How many degrees of freedom, in total, does the model have
The degrees of freedom of a model refer to the number of independent pieces of information that are available to estimate the model parameters.
In other words, it represents the number of observations that are free to vary in the analysis. To view the degrees of freedom of the model, we can use the Coordinates panel in the statistical software. The total number of degrees of freedom in a model depends on the number of variables and observations in the data set.
For example, if we have a data set with 100 observations and 5 variables, including an intercept, the total number of degrees of freedom in the model would be 94. This is because the intercept uses one degree of freedom, and each additional variable uses one degree of freedom.
Therefore, the total number of degrees of freedom is equal to the number of observations minus the number of variables used in the model. The Coordinates panel provides a convenient way to view this information and can help us better understand the statistical properties of our model.
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3. La colección de insectos de Luis está
compuesta por 112 insectos, y 3/4 de ellos
son mariposas. ¿Cuántas mariposas hay en la
colección?
(A) 28
(B) 37
(C) 64
(D) 75
(E) 84
The number of moths in the collection is given as follows:E) 84.
How to obtain the number of moths?The number of moths in the collection is obtained by applying the proportions in the context of the problem.
The total number of insects in the collection is given as follows:112 insects.
The fraction relative to moths in the collection is given as follows:3/4.
Hence the number of moths in the collection is given as follows:3/4 x 112 = 84.
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The question in English :
Luis's insect collection is
composed of 112 insects, and 3/4 of them
they are butterflies. How many butterflies are in the
collection?
(A) 28
(B) 37
(C) 64
(D) 75
(E) 84
please help I’m stuck on this problem
Answer:
2 pairs
Step-by-step explanation:
Each pair is 60$ and he has 150$
so 150 divided by 60 equals 2.5
Can someone plz help me
Answer:
5*3ˣ
Step-by-step explanation:
We see that when x=0 y=5
this means that we can write
a*b⁰=5
a*1=5
a=5
Now we just need to solve for B
using the point (1,15) we can write
15=5*b¹
3=b
Which all comes together to mean
5*3ˣ
how much rainfall, on average, does the nile delta in lower egypt receive each year?
Answer: 100 to 200 mm
Step-by-step explanation:
will the us and china go to war this century? please state your probability forecast as a percentage number.
Based on my analysis of the current geopolitical landscape, the probability of the United States and China going to war this century is difficult to predict with certainty.
However, it is essential to understand that a military conflict between two of the world's superpowers would have catastrophic consequences not only for both countries but for the entire global community.
The probability of war between the US and China cannot be entirely ruled out due to several factors, including historical tensions, economic competition, territorial disputes, and geopolitical rivalry. Both countries have shown assertiveness in their foreign policies, and their interests often clash.
However, it is crucial to note that a military confrontation would have significant risks and costs for both countries, as well as the global economy and security. Therefore, it is in the best interest of both countries to avoid any escalation of tensions and to engage in constructive dialogue to address their differences. Diplomacy and cooperation are vital tools to prevent conflicts and build a stable and peaceful world order.
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Find the Perimeter of the figure below , composed of a rectangle and a semicircle Round to the nearest tenths place.
The perimeter of the figure is 53.7.
What is perimeter?Perimeter can be defined as the total distance around a object.
To calculate the perimeter of the the figure below, we use the formula below.
Formula:
P = 2l+w+πw/2.......... Equation 1From the diagram,
Given:
l = 14w = 10π = 22Substitute these values into equation 1
P = (2×14)+10+(3.14×10/2)P = 28+10+15.7P = 53.7Hence, the perimeter of the figure is 53.7
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JH is the geometric mean of which two segments?
GH and HI
JI and HI
GJ and GH
Answer:
A. GH and HIStep-by-step explanation:
From the similarity of triangles GHJ and JHI we get:
JH / HI = GH / JH ⇒ JH ² = GH · HI ⇒ JH = √GH · HIThis is a expression of the geometric mean
Rotate CDE 270° clockwise around the origin.
pls help
Answer:
c new coordinates are (1,3) d new coordinatecoordinates are (3,3) e new coordinates are (1,1)
Step-by-step explanation:
Answer:
E' (1,1)
C' (1,3)
D' (3,3)
Step-by-step explanation:
This is the correct rotation of the triangle.
interference is a property of a. light waves. b. sound waves. c. water waves. d. all of these e. none of these
Interference is a property of ALL the given wave options, which are light waves, sound waves, and water waves.
Interference is the phenomenon of two or more waves combining to form a resultant wave of greater, lower, or the same amplitude.
When two waves meet at the same point at the same time, they either combine constructively (resulting in the formation of a wave of greater amplitude) or destructively (resulting in the formation of a wave of lower amplitude).
For instance, when two sound waves or light waves meet, they create a resultant wave whose amplitude is equal to the sum of the two original waves.
This is known as constructive interference.
On the other hand, when two waves meet and their amplitudes are in opposite directions, they produce a resultant wave whose amplitude is equal to the difference between the two waves.
This is known as destructive interference.
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An event is considered to be ________, if all possible outcomes of a random experiment are included in the events.
The set of all possible outcomes is called the sample space. Thus in the context of a random experiment, the sample space is our universal set.
A sample space is a set of potential results from a random experiment. The letter "S" is used to denote the sample space. Events are the subset of possible experiment results. Depending on the experiment, a sample area could contain a variety of results.
The set of all potential outcomes or results of an experiment or random trial is referred to as the sample space in probability theory. The potential ordered outcomes, or sample points, are listed as elements in a set that is used to represent a sample space.
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Question
Simplify for a = 3, b = -4 and c = -1.
B^2(a - 2c)
Answer:
80
Step-by-step explanation:
Substitute the given values into the expression
b²(a - 2c)
= (- 4)²(3 - 2(- 1))
= 16(3 + 2)
= 16 × 5
= 80
Answer: -80
Step-by-step explanation:
-4^2(3-2 x -1)= -80
5. Name a pair of supplementary angles.
6.Name a pair of vertical angles
7.Name a pair of adjacent angles
(Please answer if u can!)
Answer:
5. Angles FGE and CGE are supplementary
6. Angles FGE and BGC are vertical
7. Angles FGE and GED are adjacent
Step-by-step explanation:
Problem 5
Answer: Angle EGF and angle FGBExplanation:
The straight line EGB can be decomposed into the angle pieces of angle EGF and angle FGB. Another way we can break this straight angle down is to break it into angle EGA and angle AGB. Whichever route you go for, the smaller angles add back to 180 degrees. There are other possible answers you could go for. Check out the diagram below for a visual of these angles (shown in red)
========================================================
Problem 6
Answer: Angle AGB and angle EGD
Explanation:
Focus on lines AD and EB. They intersect at point G. The two lines form the opposite angles AGD and EGD which are considered vertical angles. Whenever we have an X shape like this, we'll have vertical angles in the opposite positions like this. Vertical angles are always congruent. There are other pairs of vertical angles shown in this diagram. Check out the diagram below for a visual of these angles (shown in blue)
========================================================
Problem 7
Answer: Angle BGC and Angle CGDExplanation:
The angles BGC and CGD are right next to each other, so we consider them adjacent. They share the common ray GC. Think of it like two neighbors sharing a common wall in an apartment building. There are other possible answers you could go with as long as the two angles share a common ray or line, and also share a common vertex as well. Check out the diagram below for a visual of these angles (shown in green)
Can someone just explain to me how to find “u” Thanks!
Answer:
u = 4 yards
Step-by-step explanation:
Step 1: Find u using sin
\(sin(x) = \frac{opposite}{hypotenuse}\)
\(sin(30)=\frac{u}{8}\)
\(8*sin(30)=u\)
Step 2: Plug into a calculator
\(8*sin(30)=u\)
\(8 * \frac{1}{2} = u\)
\(4 = u\)
Answer: u = 4 yards
Determine whether the triangles can be proved similar. If they are similar, write a similarity statement. If they are not similar, explain why.
Answer:
They are similar. Triangle abc is similar to triangle edc.
Step-by-step explanation:
To prove that triangles are similar, you must show that the 3 angles in one triangle are equal to the 3 angles in the other triangle. We know that they both have a 50 degree angle. We can also see that they both have a right angle. That means that the 3rd angle must also equal 40 (180-90-50). So by AAA the two triangles are congruent.
Triangle ABC is similar to triangle EDC.
Answer:
triangle ABC is similar to triangle DCE
Step-by-step explanation:
Reason being that angles in triangle ABC Correspond to That of triangle DCE Eg triangle ABC=CDE
A rancher genotypes all of her 150 head of cattle. In her herd, 25 are A1A1, 75 are A1A2, and 50 are A2A2. Assuming there is random mating, no selection, no mutation, and no cattle are introduced into or removed from the population, what is the probability that the A1 allele will be fixed
The probability that the A1 allele will be fixed is 0.4167, or about 42%.
We are given that;
Number of head= 150
Now,
Substitute all known values into the equation from step 4, then solve for the unknown quantity. We know that N = 150, (A1A1) = 25, (A1A2) = 75, and (A2A2) = 50. Substituting these values into the equations for p and q, we get:
\($$p = \frac{2(25) + (75)}{2(150)}$$$$p = \frac{125}{300}$$$$p = 0.4167$$$$q = \frac{2(50) + (75)}{2(150)}$$$$q = \frac{175}{300}$$$$q = 0.5833$$\)
Substituting these values into the equation for Pfix, we get:
\($$Pfix = \frac{p}{p + q}$$$$Pfix = \frac{0.4167}{0.4167 + 0.5833}$$$$Pfix \approx \frac{0.4167}{1}$$$$Pfix \approx 0.4167$$\)
Therefore, by probability the answer will be 0.4167 or about 42%.
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find the volume of the cone
Answer:
\(volume = \frac{1}{3} \pi {r}^{2} h \\ = \frac{1}{3} \times 3.14 \times {2}^{2} \times 6 \\ = 25.13 \: {m}^{3} \)
20 points! PLEASE HELP!!!
Answer:
Step-by-step explanation:
\(\frac{8}{2x} =\frac{x}{6} \\2x^{2} =8 \times 6\\x^{2} =24\\x= \pm 2\sqrt{3} \\BD=2 \sqrt{3}\\FG=2 *2 \sqrt{3}=4\sqrt{3}\)