Answers
Answer:
circle = 5, triangle = 2, square = 6
Step-by-step explanation:
If we look at the first and second equations, we see that circle + triangle + square = 13. Because triangle + square = 8, we can substitute this into the first equation, therefore, circle + 8 = 13 and circle = 5. Next, looking at the third equation, we see that circle + triangle = 7 and since circle = 5 we know that 5 + triangle = 7, therefore, triangle = 2. Finally, we can substitute triangle = 2 into the second equation which gives us 2 + square = 8, therefore, square = 6.
Related Questions
(x-1)2/3+(x-1)1/3-6=0
Answers
Answer:
x=7
Step-by-step explanation:
Add 6 to both sides
Simplify
Expand the parentheses
Add 1 to both sides
The function g is defined below . g(x) = (x - 5)/(x ^ 2 - 36) Find all values of x that are NOT in the domain of g. If there is more than one value, separate them with commas.
Answers
Answer:
-6, 6
Step-by-step explanation:
So we have the rational function:
[tex]g(x)=\frac{x-5}{x^2-36}[/tex]
The domain of a rational function is all real numbers except for when x is a zero of the denominator.
Thus, to determine the domain restrictions, set the denominator to 0 and solve for x:
[tex]x^2-36=0[/tex]
Add 36 to both sides:
[tex]x^2=36[/tex]
Take the square root of both sides:
[tex]x=\pm 6[/tex]
So, the values that are not in the domain of g is: -6, 6.
And we're done!
A local library claims it has 2.73x103 books. If there are 42 people in the building, how many books per capita are there?
Answers
Answer:
63 books per capita in the library
Step-by-step explanation:
Given
[tex]Books = 2.73 * 10^3[/tex]
[tex]People = 43[/tex]
Required
Determine the book per capita
To do this, we simply divide the number of books by number of person;
[tex]Average = \frac{Books}{People}[/tex]
[tex]Average = \frac{2.73 * 10^3}{43}[/tex]
[tex]Average = \frac{2.73 * 1000}{43}[/tex]
[tex]Average = \frac{2730}{43}[/tex]
[tex]Average = 63.488372093[/tex]
[tex]Average = 63[/tex] (Approximated)
Hence;
There are 63 books per capita in the library
Which pair of terms is alike?
A
X, 5x
B
3x, 2xy
C
2x, 2y
D
-4, -4y
Answers
Answer:
A
X, 5x
Step-by-step explanation:
A
X, 5x yes, both variables are x
B
3x, 2xy no, the first variable is x the second is x times y
C
2x, 2y no the first variable is x and the second is y
D
-4, -4y no, the first is a constant and the second has a variable
Answer:
Pair A
Step-by-step explanation:
Pair A (x, 5x) are like terms.
Like terms are terms in a expression or equations with the same variables.
'x' and '5x' have the same variable (you can think of 'x' as '1x'), so they are like terms. All other pairs have different variables.
Hope this helps.
A store recorded the number of sweatshirts sold on several days throughout the year. The
scatterplot shows the relationship between the average daily temperature and the number of
sweatshirts sold.
Complete the following statement.
For every 10-degree increase in temperature, the store sells approximately
fewer
sweatshirts
A. 5
B. 10
C 30
D.50
Answers
Answer:
30
Step-by-step explanation:
For every 10-degree increase in temperature, the store sells around 50 fewer sweatshirts. The correct option is D.
What is regression analysis?Regression analysis is a group of statistical procedures used in statistical modeling to determine the relationships between a dependent variable and one or more independent variables.
A scatter plot is a particular kind of plot or mathematical diagram that displays values for typically two variables for a collection of data. It uses Cartesian coordinates. When the points are coded, a further variable can be seen.
Given that store recorded the number of sweatshirts sold on several days throughout the year. The scatterplot shows the relationship between the average daily temperature and the number of sweatshirts sold.
Here is the scatter plot, it is observed that by increasing the temperature the number of sweatshirts sold is decreasing. For every 10-degree depression of temperature, the number of the sells is decreased by 50.
Therefore, for every 10-degree increase in temperature, the store sells around 50 fewer sweatshirts. The correct option is D.
To know more about regression analysis follow
https://brainly.com/question/26755306
#SPJ2
Find and simplify the following for f(x)=x(22-x), assuming h ≠ 0 in (C),a. f(x + h)b. f(x+h)- f(x)c. f(x+ h)- f(x)/h
Answers
Answer:
The answer is below
Step-by-step explanation:
Given that f(x)=x(22-x)
a) f(x)=x(22-x)
f(x + h) = (x + h)(22 - (x + h))
f(x + h) = (x + h)(22 - x - h)
f(x + h) = (22x - x² - xh + 22h - xh - h²)
f(x + h) = (-x² + 22x - h²+ 22h - 2xh)
b) f(x)=x(22-x) = 22x - x²
f(x + h) = (-x² + 22x - h²+ 22h - 2xh)
f(x+h)- f(x) = (-x² + 22x - h²+ 22h - 2xh) - (22x - x²)
f(x+h)- f(x) = -x² + 22x - h²+ 22h - 2xh - 22x + x²
f(x+h)- f(x) = -x² + x² + 22x - 22x - h²+ 22h - 2xh
f(x+h)- f(x) = - h²+ 22h - 2xh
c) f(x+h)- f(x) = - h²+ 22h - 2xh
[tex]\frac{f(x+h)-f(x)}{h}=\frac{- h^2+ 22h - 2xh}{h}\\ \\\frac{f(x+h)-f(x)}{h}=\frac{- h^2}{h}+\frac{22h}{h}-\frac{2xh}{h}\\\\\frac{f(x+h)-f(x)}{h}=-h+22-2x[/tex]
[tex]\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}= \lim_{h \to 0} (-h+22-2x )=22-2x[/tex]
Which of the following would you consider to be an example of a geometric line segment? Please
explain your answer or answers.
The 10-yard line on a football field
A scientist's line of vision as he looks into space with a telescope
A line of 15 dancers on stage
A light shone into the darkness
Hands of a clock
Answers
Answer:
The 10-yard line on a football field
Step-by-step explanation:
A geometric line segment is a straight path of points(that is a line) that has two end points (that is a beginning and an end). A 10 yard line on a football field is a line segment because it has two endpoints which is at the beginning of the 10 yard and at the end of the 10 yard.
A scientist's line of vision as he looks into space with a telescope is not a line segment because it extends forever (has no end).
A line of 15 dancers on stage is not a line segment, A light shone into the darkness is not a line segment because it continues forever and also, the hands of a clock is also not a line segment.
solve for y. y/6 = 3/9 simplify your answer as much as possible
Answers
Answer: y=2
Step-by-step explanation:
y/6 = 3/9 multiply both sides by 6/1 (since 6/1 times y/6 equals 1y or just y)
y = 18/9 now that y is isolated, just simplify 18/9
y=2 18 divided by 9 is 2
5. A group of hikers descended 1,200 feet from a
mountain in 3 hours. What was the change in elevation
per hour? Write your answer as an integer.
Answers
Answer:
300 feet an hour
Step-by-step explanation:
in three hours they went down 1200 feet so that means in 1 hour they will go down 300 feet if they take no break
I need help with #2 and 4 please help me T^T
Answers
Answer:
2. w = -90
4. b = 8
Step-by-step explanation:
Multiply both sides by the reciprocal of the number multiplying the variable.
2.
[tex] -\dfrac{2}{3}w = 60 [/tex]
[tex] -\dfrac{3}{2} \times (-\dfrac{2}{3}w) = -\dfrac{3}{2} \times 60 [/tex]
[tex] w = -\dfrac{180}{2} [/tex]
[tex] w = -90 [/tex]
4.
[tex] 9.6 = 1.2b [/tex]
[tex] \dfrac{1}{1.2} \times 9.6 = \dfrac{1}{1.2} \times 1.2b [/tex]
[tex] 8 = b [/tex]
[tex] b = 8 [/tex]
find three consecutive integers whose sum is 63
Answers
AB =4x+7
BC= 5x-8
AC=????
Answers
Answer:
i'm not sure so i'm sorry if it is not the right answer
Step-by-step explanation:
Let's assume AC is a straight line and B is on the line between A and C
AC=AB+BC
AC=4x+7+5x-8
AC=9x-1
find two consecutive odd integers such as that 6 times the lesser integer is 7 more than 5 times the greater integer
Answers
Answer:
The first consecutive integer is 17 while the second is 19
Step-by-step explanation:
Let us say that the first odd integer is x
At this point, the second odd integer will be x+2.
This is because to obtain the next consecutive odd integer, 2 will have to be added to the original number.
From the question, we can set up an equation as shown below:
[tex]6x= 7+5(x+2)[/tex]
from this, we can simply evaluate and find out the value of x
[tex]6x=7 +5x +10\\x=17[/tex]
therefore, the first consecutive integer is 17 while the second is 19
Can you please help with question 2 and explain your work?
Answers
Answer:
Find AC+CB
Step-by-step explanation:
Answer:
Find [tex]AC + CB[/tex]; 10
Find AB; 10
Step-By-Step Explanation:
[tex]AC (3) + CB (7) = 10[/tex]
Find AB is the same thing, just phrased differently.
Find each product. Then determine which conclusion can be drawn based on the results.
√2•√2
√5•√7
√ 2•18
√2•√6
The product of two irrational numbers is always rational.
The product of two irrational numbers can be rational or irrational.
The product of two irrational numbers is always irrational.
The product of two irrational numbers cannot be determined.
Answers
Answer:
Second answer:
"The product of two irrational numbers can be rational or irrational"
Step-by-step explanation:
notice from the first product
[tex]\sqrt{2} \,* \,\sqrt{2} = \sqrt{4} = 2[/tex]
that the product of two irrational numbers can give us a rational one.
from the other three examples, the answer for the products always contains a square root that cannot be reduced, so they all result in an irrational number.
Then, depending on the type of irrationals used, the product can be either rational or irrational.
You and two friends pay $40 for tickets. The cost was divided three ways in the ratio 1 : 3 : 6. How much did each person pay
Answers
Answer:
first person payed$4, second person payed$12 and the third person payed $24
Step-by-step explanation:
find the sum of the ratio
find
1 divided by the total ratio time $40 to get first person
follow in that order to get the amount each person payed.
Solve:
1. (12+a) / 47 = - 18
Answers
Answer:
a= -858
Step-by-step explanation:
46 times -18 equals -846
-846-12 equals -858
Answer:
a=-858
Step-by-step explanation:
12+a=846
a=-846-12
a=-858
Question #1:
Select all the statements that are true of a least-squares regression line.
The regression line maximizes the residuals between the observed values and the predicted values.
The slope of the regression line is resistant to outliers.
In the equation of the least-squares regression line, ġ is an observed value when x is known.
The sum of the residuals is always close to zero.
The coefficient of determination measures how much of the variation in the y-values is explained by the regression line.
In the equation of the least-squares regression line, is a predicted value when x is known.
Answers
Answer:
1. The sum of the residuals is always close to zero.
2.The coefficient of determination measures how much of the variation in the y-values is explained by the regression line.
3. In the equation of the least-squares regression line, y hat is a predicted value when x is known
Step-by-step explanation:
The least square regression line is a line that makes distance from data points to the regression line to be as minimal as possible. This line is a best fit for the data points. Let's say we have a collection of numbers and a scatter plot, this line is a line that exists and best fits the data.
Therefore, the least square regression line minimizes sum of squared error to be close to zero. R² measures the extent to which variations in the value of y is explained by the regression line. In the equation of this line, y hat is a predicted value when x is known.
The least square regression line minimizes the sum of squared error such that the sum of the residual is zero or very close to 0. Hence, the true statements from the options given are :
Sum of residuals is always close to 0The coefficient of determination measures how much of the variation in the y-values is explained by the regression line.[tex]y_{hat} [/tex] is the predicted value when x is known.The least square regression Line is used to create a Linear model in the form y = bx + c
The Coefficient of determination R² gives the proportion of the variation explained by the regression line.
The predicted value of y is obtained using the model of the Least Square Regression Line for a given value of x.
Outlier values often affects the performance and accuracy of the Least Square Regression Line.
Learn more :https://brainly.com/question/18405415
5x + 15 = 75
State your answer as a decimal, not a fraction.
Answers
-15
5x=60
X=12
x = 12
Step-by-step explanation:5x + 15 = 75
5x = 75 - 15
5x = 60
x = 60 : 5
x = 12
A football is thrown by a quarterback to a receiver. The points in the figure show the height of the football, in feet, above the ground in terms of its distance, in yards, from the quarterback. Use this information to solve the problem. Find the coordinates of point B.
Answers
Answer:
Coordinates of the point B will be (14, 3.5).
Step-by-step explanation:
From the graph attached,
Distance between the Quarterback and Receiver = x-coordinate of the point B = 14 yards
Similarly, height of the football from the ground at point B = y-coordinate of the point B = 9 + [tex]\frac{12-9}{2}[/tex]
= 9 + 1.5
= 10.5 feet
Since, 1 feet = [tex]\frac{1}{3}[/tex] yards
10.5 feet = [tex]\frac{10.5}{3}[/tex]
= 3.5 yards
Therefore, coordinates of the point B will be (14, 3.5).
Hello what is 50+3 ? c h a t w i t h p e p s
Answers
Answer:
50+3=53
Step-by-step explanation:
mark as Brainliest
Answer:
53
Step-by-step explanation:
5+5+5+5+5+5+5+5+5+5+1+1+1
Use Polya's four-step problem-solving strategy and the problem-solving procedures presented in this lesson to solve the following exercise. The number of ducks and pigs in a field totals 38. The total number of legs among them is 100. Assuming each duck has exactly two legs and each pig has exactly four legs, determine how many ducks and how many pigs are in the field. ducks pigs
Answers
what decimal is longer than 8.5 cm
Answers
Answer:
8.5555Step-by-step explanation:
This number is not only larger, but also longer in digits than 8.5.
___________________________________________________I AM ALWAYS HAPPY TO HELP :)HELP PLZ NEED ASAP AND BRAINLIEST Simplify the complex fraction. In complete sentences, explain the process that you followed to simplify the fraction. Include the LCD and simplified form in your answer. Complete your work in the space provided or upload a file that can display math symbols if your work requires it.
A-9/a / 1-3/a=
Answers
Answer:
the answer is a+9/2
Step-by-step explanation:
a-9/a/1-3/a
=a-9/a/-2/a
=a+9/a/2/a.
( dividing two negatives is equal to positive)
=a+9/a*a/2
doing reciprocal
=a+9*1/2
reduce the expression"a"
=a+9/2
find the product
answer is a+9/2
) LaTanya is decorating her living room and draws
a floorplan to help look at placement.
10
9
co
A. LaTanya wants to hang a pictur at the center
of the back wall. How do you find the point at
the center between A and B?
Answers
Answer:
56
Step-by-step explanation:
are points a c d and j coplanar
Answers
a+2a-1=11
Be quick please :D
Answers
Answer:
[tex]a=4[/tex]
Step-by-step explanation:
So we have the equation:
[tex]a+2a-1=11[/tex]
First, combine like terms:"
[tex]3a-1=11[/tex]
Now, add 1 to both sides:
[tex]3a=12[/tex]
Divide both sides by 3:
[tex]a=4[/tex]
And we're done!
jayden has two jobs. his full time job pays $17 an hour. a part time job pays $9 an hour. last week jayden worked 32 hours at his full time job and 14 hours at his part time job
Answers
Answer:
670
Step-by-step explanation:
32 hours at 17 plus 14 hours at 9
32 *17 + 14 *9
544+126
670
Answer:
job 1 = 544 dollars he made job 2 = 126$
Step-by-step explanation:
You multiply the amount he made for 1 hour by the total hours same thing with job 2.
15 is divisible by 75 true or false ? need it right now :)
Answers
15 is divisible by 75 true or false
Answer:
True
can i plz get help? on these ?
Answers
Step-by-step explanation:
she is showing how many wheels are on each bike and skateboard,on each bike there are 2 wheels,on each skateboard there are 4 wheels. sarahs is different because she shows how many wheels are on each of those bikes