The first 19 terms of the sequence 9, 2, -5, -12,... find the sum of the arithmetic sequence
Answers
To find the sum of the ari
Related Questions
0.02 X 100 = 0.02 X_____=_____
Answers
Answer:
0.02 × 100 = 2
Step-by-step explanation:
move the decimal 2 steps backward according to the numbers of zeros behind the multiplier(100).
0.02 × 100 = 2
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When 9 1/3 is divided by 1/9 the quotient is closest to what whole number? Justify your answer.
Answers
Answer:
84
Step-by-step explanation:
(9 1/3) DIVIDED by (1/9) =
(28/3) DIVIDED by (1/9) =
(28/3) TIMES (9/1) =
( (28 TIMES 9) / (3 TIMES 1) =
28 Times 3 =
84
Three Snickers bars and two Butterfinger bars contain a total of 23 grams of protein. One Snickers bar and one Butterfinger bar contain a total of 10 grams of protein. How much protein does one Snickers bar contain?
Answers
Answer:
.
Step-by-step explanation:
The function f(x) = -2(4)²+1 +140 represents the number of tokens a child has x hours after arriving at an arcade.
What is the practical domain and range of the function?
Enter your answer by filling in the boxes to correctly complete the statements. If necessary, round to the nearest hundredth.
The practical domain of the situation is ?
The practical range of the situation is ?
Answers
The practical domain of the situation is all real numbers, since there is no restriction on the number of hours the child can spend at the arcade.
The practical range of the situation is [1,140], since the minimum value of the function is 1 and the maximum value is 140.
Find the horizontal asymptote of the graph of the rational function.y = x+2 ———- 2x^2-3Identify the horizontal asymptote for the graph of the function.
Answers
Given
\(y=\frac{x+2}{2x^2-3}\)Explanation
Since the degree of the numerator is less than the degree of the denominator, therefore, the horizontal asymptote is
Answer:
\(y=0\)Find the midpoint of the line segment with the endpoints (-6,-8) and (-2,-6)
Answers
Answer: (-4,-7)
Step-by-step explanation:
The Midpiont formale is in the picture and add -6 with -2 and add -8 with -6.
-6 + -2 = -8
-8+-6=-14
-8 divided 2 = -4
-14 divided 2 = -7
(-4,-7)
to determine the reliability of experts who interpret lie detector tests in criminal investigations, a random sample of 280 such cases was studied. the results were
Answers
The reliability of experts who interpret lie detector tests in criminal investigations can be determined by analyzing the results of the random sample of 280 cases that were studied. It is important to look at the overall accuracy of the interpretations, as well as any potential biases or errors that may have affected the results.
To analyze the results, we can look at the number of correct and incorrect interpretations, and calculate the percentage of accurate interpretations. This will give us an overall measure of the reliability of the experts.
We can also look for any potential biases or errors that may have affected the results. For example, we may want to examine whether certain experts were more likely to make accurate interpretations than others, or whether there were any factors that may have influenced the interpretations, such as the type of crime or the suspect's behaviour.
Overall, the reliability of experts who interpret lie detector tests in criminal investigations can be determined by analyzing the results of a random sample of cases and looking for any potential biases or errors that may have affected the results. By doing this, we can gain a better understanding of the accuracy and reliability of these experts and their interpretations.
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Please help
Solve the inequality.
1
X +
<-3 or x - 3>-2
2 –
x <
or x >[]
![Please helpSolve the inequality.1X +<-3 or x - 3>-22 x <or x >[]](https://i5t5.c14.e2-1.dev/c-qa-images/contents/attachments/JIKFN01TzpBltQQirsKvm5Thb0KpT00Z.png)
Answers
Answer:
x <_ - 3/0.5 or x > 1
Answer
which number is IRRATIONAL
Answers
because when you look for the root of ninety, it gives you a result that is not a natural or Rational number, but a completely Irrational number.
the result is 9.4868329
Step-by-step explanation:Irrational numbersare numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.
hope this help!!
Answer:
c)
Step-by-step explanation:
Since sqrt(90) is an irrational number, by definition it cannot be represented as a ratio of two integers.
find the volume of this
Answers
Angle TLN equals (3X -18)°, angle MZQ equals (5X +14)° and
Answers
For the given figure, x = 23° and y = 129°
Parallel lines:
Parallel lines are lines that always stay the same distance apart and never meet.
Transversal line :
A transversal is a line that crosses two or more other lines.
given,
∠TLN = (3x - 18)°
∠MZQ = (5x + 14)°
∠NLM = y°
Now,
∠MZP + ∠MZQ = 180° (Linear Pair)
∠MZP = 180° - ∠MZQ ...........(I)
again,
∠NLM + ∠TLN =180° ...........(II) (Linear Pair)
As, ∠TLN = ∠MZP (Corresponding Angle)
(3x - 18)° = 180° - ∠MZQ
(3x - 18)° = 180° - (5x + 14)°
3x + 5x = 180° - 14° + 18°
8x = 184°
x = 184 / 8
x = 23°
From (II),
∠NLM + ∠TLN =180°
y° + 3x - 18° = 180°
y = 180 - 3x + 18
= 180 - 3* 23 + 18
= 180 - 69 +18
y = 129°
For the given figure,
x = 23° and y = 129°
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Jonah measured a picnic area near the river and made a scale drawing. The picnic area,
which is 70 yards wide in real life, is 10 inches wide in the drawing. What scale did Jonah
use?
Answers
The scale used by Johan is 1: 252.
Here, we are given that Jonah made a scale drawing of the picnic area in which the 70 yards wide picnic area in real life, was 10 inches wide in the drawing.
As per mathematical measurements-
1 yard = 3 feet
and 1 feet = 12 inches
Thus, 3 feet = 12 x 3 inches
= 36 inches
Therefore, we get that 1 yard = 36 inches
Now, the picnic area is 70 yards
the picnic area in inches is = 70 x 36 inches wide
= 2520 inches
Thus the scale used by Johan will be-
10 : 2520
= 1 : 252
Thus, the scale used by Johan is 1 : 252.
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A study was conducted on 64 female college athletes. The researcher collected data on a number of variables including percent body fat, total body weight, lean body mass, and age of athlete. The researcher wondered if total body weight (TBW), lean body mass (LBM), and/or age are significant predictors of % body fat. All conditions have been checked and are met and no transformations were needed. The partial technology output from the multiple regression analysis is given below. How many degrees of freedom does the F-statistic have in this problem?
Answers
Answer:
Hello please your question is in-complete attached is the complete question
degree of freedom = -62.90 ( e )
Step-by-step explanation:
The formula for calculating the F-statistic/test statistic is
test - statistic = Coef ( LBW) / SE Coef ( LBW )
= -0.72399 / 0.01151
= - 62.90
the degree of freedom the F-statistic has = -62.90
F-statistic test is any statistical test in which the test statistic has an F-distribution under the null hypothesis. the value of the test can be gotten from running an ANOVA test or regression analysis on the statistical models
Using the definition of degrees of freedom, it is found that the F-statistic has 63 df.
When a hypothesis is tested, the number of degrees of freedom is one less than the sample size.
In this problem, the sample size is of n = 64.
Hence:
df = n - 1 = 64 - 1 = 63
The F-statistic has 63 df.
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can someone help- what does these equation mean? (-9)(-2) | -20/5 | (-3)(6)
Answers
18•4•-18
-1296
Anything in between l l is positive because that is absolute value.
Draw a diagram that shows how the expression can represent the area of a figure 8(3x-1)
Answers
Answer:
Step-by-step explanation:
You can draw a rectangle with one side of the rectangle being 8 units, while the other side being (3x - 1) units.
Solve for x and graph the answer on a number line
2
Answers
The solution to the system of inequalities in interval notation is [-2, 1].
How to solve the system of inequalities?Based on the information provided in the image below, we have the following system of inequalities;
-12 < 3x - 6
-3 ≥ 3x - 6
By adding 6 to both sides of the equation (inequality), we have;
-12 < 3x - 6
-12 + 6 < 3x - 6 + 6
-6 < 3x
-2 < x
x > -2 (flip)
-3 ≥ 3x - 6
-3 + 6 ≥ 3x - 6 + 6
3 ≥ 3x
1 ≥ x
x ≤ 1
Therefore, the solution to the system of inequalities is given by:
-2 < x ≤ 1
In interval notation, we have [-2, 1].
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Which of the following is the best definition of a statistical population?
a. The distribution of all possible values that can be assumed by some statistic, computed from samples of different sizes randomly drawn from different populations.
b. Distribution of some characteristic based on individual observations – for each individual unit we measure the characteristic and then look at the distribution of all of these values.
c. The distribution of all possible values that can be assumed by some statistic, computed from samples of the same size randomly drawn from the same population.
d. The distribution of all possible values that can be assumed by some parameter, computed from a single sample randomly drawn from some population.
Answers
c. The distribution of all possible values that can be assumed by some statistic, computed from samples of the same size randomly drawn from the same population.
c. The distribution of all possible values that can be assumed by some statistic, computed from samples of the same size randomly drawn from the same population.
What is the statistical population?A population is the group of people from which a statistical sample is taken in statistics. Therefore, a population is any collection of people who have something in common. A statistically significant portion of a population, rather than the full population, may also be referred to as a sample.
When surveying a big number of people, it is just impracticable to examine everyone who fits the description you are looking at using a population parameter. It is often easier to study a smaller sample of participants, but by applying inferential statistics, it is possible to get a good approximation of the population parameter.
thus, statistical population is the distribution of all of the statistics calculated from all possible samples of the same size.
Therefore, The statistical population, which is calculated from samples of the same size randomly selected from the same population, is the distribution of all potential values that can be assumed by a statistic.
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if 10 days needed to earn 1 $ then how many days will take to earn 46$?
Answers
Because 10 days : 1$
X days : 46$
So X= 10*46/1= 460days
Suppose we have two random variables X and Y . The one with a
higher coefficient of variation exhibits higher variability Is true, false or uncertain?
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The statement that the one with a higher coefficient of variation exhibits higher variability is true.
How to explain thisThe coefficient of variation expresses the proportionate level of variability present in a random variable and can be determined by dividing the mean by the standard deviation.
If the coefficient of variation is higher, it means that the random variable shows more variation in relation to its mean.
To illustrate, suppose that the average height of a set of males is 6 feet with a standard deviation of 2 inches.
The variance ratio would result in a coefficient of variation of 0. 033 Suppose that a group of females has an average height of 5 feet with a standard deviation of 1 inch.
The women's coefficient of variation is calculated to be 0. 02 The variance of men's height in relation to their average height is indicated by their higher coefficient of variation.
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A certain shade of pink us created by adding 3 cups of red paint to 7 cups of white paint
Answers
Answer:
A certain shade of pink us created by adding 3 cups of red paint to 7 cups of white paint
Step-by-step explanation:
Constant of proportionality is the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality.
To make color pink,
for every 3 cups of red , we need 7 cups of white.
Let 'r' be the cups of red required
let 'w' be the cups of white required
so , as per the question
for 3 r we need = 7 w
r = 7/3 w
so, 7/3 is constant of proportionality
what statements are true about this function
Answers
The true statement about the function is C. function f and function g are not inverse because f{g(x)} = g{f(x)} .
What is inverse of a function?An inverse function or an anti function, which can reverse into another function.In simple words, if any function “f” takes x to y then, the inverse of “f” will take y to x. If the function is denoted by 'f' or 'F', then the inverse function is denoted by f-1 or F-1.
now the given functions are,
f(x) = √(2x + 2) and
g(x) = (x^2 -2)/2
Now,
f{g(x)} = f{(x^2 -2)/2}
= √(2(x^2 -2)/2 + 2)
= √ x^2 -2 + 2
f{g(x)} = √ x^2
f{g(x)} = x
Now,
g{f(x)} = g{ √(2x + 2)}
= (√(2x + 2)^2 -2)/2
= (2x + 2) -2 /2
= 2x/2
f{g(x)} = x
Here we see that ,
f{g(x)} = g{f(x)}
Hence f and g are not inverses.
∴The true statement about the function is C. function f and function g are not inverse because f{g(x)} = g{f(x)} .
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Mrs. Hanger is painting the following picture of an H to hang in the entryway of her home. She has made the following scale drawing as her model. The scale used on the drawing is 1:6.
As you can see, the "H" is going to be painted brick red in the center of a rectangular beige background. This means the distance from the "H" to the top of the picture will be the same as the distance from the "H" to the bottom of the picture. Similarly, the distance from the "H" to the left side of the picture will be the same as the distance from the "H" to the right side of the picture. Finally, each segment of the "H" will have the same width.
Mrs. Hanger decides to change the scale of her drawing from 1:6 to 1:4.
Is the new scale drawing larger or smaller than the original scale drawing? Use complete sentences to explain your reasoning.
What are the dimensions of the painting on the new scale drawing?
Answers
If the scale of her drawing is changed from 1:6 to 1:4, the new scale will be larger than the original scale as 1 unit is represented by 4 inches.
How to interpret Scale drawing?To find the area of the hanger H, we will need to split the H into different rectangular parts and find their area, after which we add all the numbers up together.
The total area of H = 60 in. + 18 in. + 60 in.
Total Area of H = 138 in.²
The total area of the entire rectangular figure is 720 in.² Thus;
The total area of the beige colored area is; 720 in.² - 138 in.² = 582 in.²
Total area of the beige area is 582 in.²
The percentage of 582 in.² out of 720 in.² is;
582 in.²/720 in.² = 80.83 %
Thus, 80.83% of the entire rectangular figure will be beige colored.
Now, if the scale of her drawing is changed from 1:6 to 1:4, the new scale will be larger than the original scale as 1 unit is represented by 4 inches.
Dimensions of the new scale drawing = 5(3/2) = 7.5 inches by 4(3/2) = 6 inches
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To the nearest degree, what is the measure of the central angle for bathing?
Answers
The central angle of Bathing = 108 degrees.
In the given pie chart,
Since we know,
A circle is a closed, two-dimensional object where every point in the plane is equally spaced from a central point. The line of reflection symmetry is formed by all lines that traverse the circle. Additionally, every angle possesses rotational symmetry around the center.
The whole circle is 360 degrees
which represents 100%.
It is given that,
Bathing = 30%
So have need to find 30% of 360 degrees.
Therefore,
Bathing = (30/100)x360
= (30/10) x 36
= 3x36
= 108
Hence,
The central angle = 108 degrees.
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The complete question is:
To the nearest degree, what is the measure of the central angle for bathing?
solve:
-7=12x-16
If you help me with this I will be your best friend!!!
Answers
Answer:
x = 0.75
Step-by-step explanation:
first make the x term the subject
-7 = 12x - 16
-7 + 16 = 12x
add the like terms
9 = 12x
solve for x
9÷ 12 = 12x ÷ 12
0.75 = x
Which of the lists of letters all have rotational symmetry?
C,H, N, X
N.O.S. Z
H.J.N.S
F.H. X. Z
Answers
Answer:
N, O, S, Z, which will be B
Step-by-step explanation:
Please help me solve this question I'm stuck on
Answers
The answer to the question is
D) ($9. 60, $9. 84)
How many commutes are exactly 68 minutes
Answers
Answer:
three
Step-by-step explanation:
stem. is the tens place and the leaf is the. ones place
so you want to find 68 so you look in the stem column and look for six
in the row there are 6 numbers which mean:
60, 61, 67, 68, 68, 68
as you can see there is three 68 there for the answer ths 3
Kendra is collecting water from a leaky faucet. The ordered pairs in the table represent the amount of water in Kendra’s pail over time. Time (hr), x 0 1 2 3 Water (in.), y 0 3 6 9 Interpret the slope of the line..
Answers
The slope of the line is equal to 3 and it means that the water leaks at a rate of 3 inches per hour.
How to calculate the slope of a line?In Mathematics, the slope of any straight line can be determined by using this mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Based on the information provided, we can logically deduce the following slope and data points on the line:
Points on x-axis = (0, 1).Points on y-axis = (0, 3).Substituting the given data points into the slope formula, we have the following;
Slope, m = (y₂ - y₁)/(x₂ - x₁)
Slope, m = (3 - 0)/(1 - 0)
Slope, m = 3/1
Slope, m = 3.
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13 1/3 divided by 2/3
Answers
The value of expression 13 1/3 divided by 2/3 would be; 20
How can we interpret the division?When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division can be interpreted as equally dividing the number that is being divided into total x parts, where x is the number of parts the given number is divided.
We need to find the expression of 13 1/3 divided by 2/3
Therefore,
40/3 divided by 2/3
40/3 x 3/2
20
Therefore, The value of expression 13 1/3 divided by 2/3 would be; 20
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HELP IS THIS RIGHT??!?
Answers
Answer:
is there no button to check if it's right or wrong? Cuz i use big ideas too, and it usually does
Step-by-step explanation:
.