Answer:
hope it will help you
Step-by-step explanation:
f(x)=x²+7
X(-2)=?
therefore X(-2)=(-2)²+7
=4+7
=11
In an examination Alan obtained 32 out of 40 marks. In another examination Ben obtained ⅝ of the total marks.
Express the marks of each candidate as a percentage.
Answer:
Alan: 80%
Ben: 62.5%
Step-by-step explanation:
5/8 = 0.625 x 100 = 62.5 = 62.5%
Easy I-ready question ! I’ll give brainliest
Answer:
Top right answer, B.
Step-by-step explanation:
Each y value IS found by adding to the x-value.
Giselle’s youth club sells cookies to fund their trips and activities. Each year they need to earn $1,247 from selling cookies. For each box of cookies they sell, they make $1.45. If Giselle’s club has already made $472.70 from selling cookies, how many more boxes do they need to sell to meet their goal?
Answer:
640 more boxes
Step-by-step explanation:
Combine the like terms to create an equivalent expression -2k-(-5)+1
Plzz helpp ASAP!! The value is thousand, ten thousand, hundred thousand:)
Answer:
thousand =599,000
ten thousand=600,000
hundred thousand =600,000
Step-by-step explanation:
You can download free off google Calculator Soup
Its a rounding numbers calculator
598,500----8 is your thousands place , number to the right of it is 5 or higher you make it 9,000
598,000 .....9 your ten thousands place ....number to the right of it is 5 or higher it goes up one makinf it 600,000
598,500.... 5 is your hundred thousand place... again number to the right is 5 or higher ....it again is 600,000
which would not be a step in solving 3x+1+2x=2+4x
You didn't provide anything for us. You said "which would not be a step in solving 3x+1+2x=2+4x" Next time, provide an image like a screenshot, or simply copy (highlight and CTRL/CMD+C) and paste (CTRL/CMD+V) it into your question. Just wanted to help you for next time you ask a question, here on Brainly!
What is the solution to this equation?
3 √(1/8-x)=-1/2
The solution is
Answer:
the solution is 2/8
Step-by-step explanation:
check if its right by using the calculator
the solution is x =2/8.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
here, we have,
given that,
3 √(1/8-x)=-1/2
=> 1/8 - x = - 1/8
=> x =2/8
Hence, the solution is x =2/8.
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Derive all answers from the demand curve function given and show all steps. Q.3 (a) If a rightward shift of the demand curve of B is caused by an increase in the price of product A from Rs. 20 to Rs. 24 and this lead to quantity demanded of product B changing from 400 units to 600 units, then what is the cross-price elasticity of demand for B ?
The cross-price elasticity of demand for B is 1.5. Let the initial price of product B be P and the initial quantity demanded be Q. Therefore the initial price and quantity demanded are P= 20 and Q = 400 respectively.
The final price of product B is P’ = 20+4 = 24 and the final quantity demanded is Q’= 600 units. This rightward shift of the demand curve for B is caused by an increase in the price of product A.
Therefore, we can say that the cross-price elasticity of demand for B is equal to;Percent change in Quantity demanded of B. Percent change in the price of A= (Change in quantity demanded of B / Average quantity demanded of B) / (Change in the price of A / Average price of A)Putting in the values we get;= [(600-400) / (600+400)/2] / [(24-20) / (20+24)/2]= (200 / 500) / (4 / 22)= 1.5Conclusion:The cross-price elasticity of demand for product B is 1.5.
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Determine whether each statement is true or false. If false, explain why.A polynomial function having degree 6 and only real coefficients may have no real zeros.
The statement 'A polynomial function having degree 6 and only real coefficients may have no real zeros' is false.
A polynomial function having degree 6 and only real coefficients must have at least one real zero. This is known as the Fundamental Theorem of Algebra, which states that a polynomial function of degree n has exactly n complex zeros, counting multiplicity.
Since the polynomial function has only real coefficients, the complex zeros must occur in conjugate pairs. Therefore, if there are no complex zeros (i.e., all zeros are real), then the polynomial function has a total of n real zeros.
Hence, a polynomial function of degree 6 and only real coefficients cannot have no real zeros.
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what is (6^2)(-3^5) in simpliest form?
The simplified form of the expression (6^2)(-3^5) is -8,748.
To simplify (6^2)(-3^5), we must first evaluate the exponents.6^2 = 36, since 6 × 6 = 36.3^5 = 243,
since 3 × 3 × 3 × 3 × 3 = 243.Now, we substitute the values into the expression:
(6^2)(-3^5) = (36)(-243)
Next, we multiply the values to obtain the simplified form:
(36)(-243) = -8,748
Therefore, (6^2)(-3^5) in its simplest form is -8,748.According to the rules of exponents, when we raise a number to an exponent, the result is the number multiplied by itself the number of times represented by the exponent.
For instance, 6^2 means 6 multiplied by itself 2 times, which is equal to 36.3^5 means 3 multiplied by itself 5 times, which is equal to 243.
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True or false to find the perimeter of the image or second drawings we can multiply the perimeter of the given scale factor.
miles is preparing for a 10-day snow-camping trip with friends. snowshoes can be rented at the campsite. they cost $30 for the first day plus $10 for each additional day, and miles plans to rent snowshoes for at least one day of the trip. the function p(d) represents the amount miles pays, in dollars, for d days of snowshoe rental. what is the range of p(d)?
Answer:
p(d) can range from $30 to $120
p(d) = 30 + 10(d-1)
Step-by-step explanation:
$30 first day
$10 for every following day that he rents snowshoes
in the formula, you would subtract 1 day for the $30 first day rent and multiply the amount of days after that by $10
Tri-County G\$T selis 150,000 MWh per yeat of electrical power to Boulder at $80 per MWh, has fixed costs of $80.1 milion per yoar, and has varistele costs of $20 por MWh. If Tri-County has 1,000,000MW h of demand from its customers (other than Boulder), what will Tri-County have to charge to break even? Tri-County wit have to charge? to break oven. (Enter your response rounded to the nearest penny.)
Tri-County will have to charge approximately $83.1 per MWh to break even.
To calculate the break-even price that Tri-County will have to charge to cover its costs, we need to consider both the fixed costs and the variable costs. The fixed costs are given as $80.1 million per year.
The variable costs are calculated by multiplying the quantity of electrical power sold (150,000 MWh per year to Boulder) by the variable cost per MWh ($20). Therefore, the variable costs amount to 150,000 MWh/year * $20/MWh = $3 million per year.
To cover both fixed and variable costs, Tri-County needs to charge a total amount that equals the sum of these costs. The total cost is $80.1 million + $3 million = $83.1 million per year.
Now, let's calculate the break-even price per MWh. Since Tri-County has a demand of 1,000,000 MWh from its customers (other than Boulder), we can divide the total cost by this quantity to find the break-even price.
Break-even price = Total cost / Quantity of electrical power demanded
Break-even price = $83.1 million / 1,000,000 MWh = $83.1/MWh
Therefore, Tri-County will have to charge approximately $83.1 per MWh to break even.
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What is the equation of this line?
1) y = 1/2x -3
2) y = -1\2x - 3
3) y = -2x - 3
4) y = 2x - 3
Answer:
it's 1
Step-by-step explanation:
take any two points;
I've taken (0, -3) and (2, -2)
find the slope= -2-(-3)/2
=1/2
as other option doesn't have the slope 1/2 you so it must be option A
Nine less than four times a number is less than five times the number decreased by two.
Answer:
[tex]4x - 9 < 5x - 2[/tex]
(2, 5), (6, -7) what is the slope
Answer:
[tex]m=-3[/tex]
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Simply plug in your 2 coordinates into the slope formula to find slope m:
[tex]m=\frac{-7-5}{6-2}[/tex]
[tex]m=\frac{-12}{4}[/tex]
[tex]m=-3[/tex]
PLZ HELP ASAP I don’t know the answer and I keep getting it wrong
exercise 8.7. number of hearts. recall that a standard deck of 52 playing cards has 4 suits (hearts, spades, clubs, and diamonds) and 13 cards in each suit (labeled 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, a). the cards are shuffled. you are dealt the first 5 cards off the top of the deck. let x be the number of hearts you get. a. what are the possible values of x? b. what is the mass of x? c. make a plot of the probability mass function. d. what is the cdf of x? e. make a plot of the cdf.
Given statement solution is :- The mass of x refers to the probability mass function (PMF) values for each value of x.
Plot of the probability mass function (PMF):
The PMF plot represents the probabilities of the different values of x.
css
Copy code
x | P(X=x)
---|--------
0 | 0.362
1 | 0.442
2 | 0.153
3 | 0.037
4 | 0.006
5 | 0.0005
The cumulative distribution function (CDF) of x is a function that gives the probability that X takes on a value less than or equal to a given x-value.
a. The possible values of x are 0, 1, 2, 3, 4, and 5. This represents the number of hearts you can get from the 5 cards dealt.
b. The mass of x refers to the probability mass function (PMF) values for each value of x. We can calculate the mass as follows:
P(x = 0) = (39/52) * (38/51) * (37/50) * (36/49) * (35/48)
P(x = 1) = 5 * (13/52) * (39/51) * (38/50) * (37/49) * (36/48)
P(x = 2) = 10 * (13/52) * (12/51) * (39/50) * (38/49) * (37/48)
P(x = 3) = 10 * (13/52) * (12/51) * (11/50) * (39/49) * (38/48)
P(x = 4) = 5 * (13/52) * (12/51) * (11/50) * (10/49) * (39/48)
P(x = 5) = (13/52) * (12/51) * (11/50) * (10/49) * (9/48)
Note: The coefficients in front of each probability correspond to the different ways of selecting x hearts from the available hearts in the deck.
c. Plot of the probability mass function (PMF):
The PMF plot represents the probabilities of the different values of x.
css
Copy code
x | P(X=x)
---|--------
0 | 0.362
1 | 0.442
2 | 0.153
3 | 0.037
4 | 0.006
5 | 0.0005
d. The cumulative distribution function (CDF) of x is a function that gives the probability that X takes on a value less than or equal to a given x-value.
The CDF of x can be calculated by summing up the probabilities of all the values less than or equal to x.
CDF(x = 0) = P(x = 0)
CDF(x = 1) = P(x = 0) + P(x = 1)
CDF(x = 2) = P(x = 0) + P(x = 1) + P(x = 2)
CDF(x = 3) = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3)
CDF(x = 4) = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3) + P(x = 4)
CDF(x = 5) = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3) + P(x = 4) + P(x = 5)
e. Plot of the cumulative distribution function (CDF):
The CDF plot represents the cumulative probabilities for the different values of x.
scss
Copy code
x | CDF(X<=x)
---|-----------
0 | 0.362
1 | 0.804
2 | 0.957
3 | 0.994
4 | 1.000
5 | 1.000
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I really need help with this and will award bravest to whoever gets it right
Answer:
532m^2
Step-by-step explanation:
I split the figure in half and I solved the figure separately adding it together to get 532m^2
Answer:
560m²
Step-by-step explanation:
6*14=84
6*14=84
4*7=28
4*7=28
6*7=42
10*6=60
7*6=42
4*6=24
14*6=84
6*14=84
added together = 560m²
Mrs. Perry is taking a group of students to the Clark Planetarium where tickets cost $7 each. The bus will cost $50 and she has a budget of $200. How many people can attend under these constraints?
100 PTS PLEASE HELP ME!! I NEED IT FAST!!!! (Thank you)
1. Evaluate the expression when x = 9:
5|6−x|
A.−30
B.10
C.15
D.75
2. Evaluate the expression when n = 3:
−|−4n|
A.−12
B.−7
C.7
D.12
Answer:
1. c.15
2. a.-12
lines mean absolute value. (never negative unless the negative signs on the outside of the lines)
A line goes through the point (2, 4) and has
a slope of 3/2
. Which of the following points is
also on the line?
A. (1, 1)
B. (3, 7)
C. (0, 2)
D. (4, 7)
E. (0, 1)
F. (0, 0)
Answer:
D........(4,7)
E.(0,1)
Choose a factor pair of 36. Show how this factor pair can be found in the prime factorization of 36
Answer:
The prime factorization of 36 is 2 x 2 x 3 x 3
We can see that 2, 3, 4 and 6 are factors of 36. Dividing those numbers into 36 will give you the rest of the factor pairs.
(36, 1) (18, 2) (12, 3) (9, 4) (6, 6)
Hope this helps you
Step-by-step explanation;
4. What does between sample variance mean? Select one: a. The variance that occurs within internal samples and external samples being analyzed. b. The variance that occurs within a single sample or group. c. The variance that occurs across portions of samples being analyzed. d. The variance that occurs across all of the samples being analyzed. 5. When does a within sample variance occur? Select one: a. Within a single sample or group b. Only within groups c. Within multiple samples or groups d. Only within samples 6. When validating assumptions, there are questions one asks. Is the dependent variable continuous? Select one: a. Yes, it is measured in interval form. b. No, it is measured in variance form. c. Yes, it is measured d. The error occurs when you reject the correct hypothesis during a hypothesis test. 7. When validating assumptions, there are questions one asks. Is the independent variable made up of two or more unrelated groups? Select one: a. Yes, the independent variable is how the book is packaged. b. No, the independent variable is how the book is packaged. c. No, the independent variable is not how the book is packaged. d. Yes, the independent variable is the total of packaged books. 8. When validating assumptions, there are questions one asks. Is there independence of observation? Select one: a. Yes, the three packing methods are combined. b. No, the three packing methods are combined. c. No, the three packing methods are connected and combined. d. Yes, the three packing methods don’t have anything to do with each other and are not combined. 9. What is an easy way to check for outliers? Select one: a. Hypothesis test b. Graphical analysis c. Chi-square test d. Minitab check 10. What is Levene's test commonly used to test? Select one: a. unequal assumptions when data within each group is normal b. unequal assumptions when data within each group is abnormal c. equal assumptions when data within each group is abnormal d. equal assumptions when data within each group is normal 11. If unable to validate the sixth assumption, what is the name of the statistical calculation that is performed to provide a p-value? Select one: a. Chi-square test b. Welch's test c. Levene's test d. Graphical analysis 12. Minitab assists in choosing which test is useful. What are the three comparisons that can be made using Minitab's test options? Select one: a. one sample with a target, two samples against two different samples, or more than two samples b. one sample with a target, two samples with each other, or more than two samples c. two samples with a target, two samples with each other, or one sample d. one sample with a target, two samples with each other, or a single sample 13. If you are comparing the means for more than two samples of continuous data, what would be used? Select one: a. Welch's test b. The 1-Way ANOVA c. Graphical analysis d. Minitab 14. If you are comparing attributed data, what test would be utilized? Select one: a. Welch's test b. Graphical analysis c. Levene's test d. Chi-square tests
1. The correct answer is c. The between-sample variance refers to the variance that occurs across portions of samples being analyzed. It represents the variability or differences between different groups or samples.
5. The correct answer is c. Within-sample variance occurs within multiple samples or groups. It represents the variance or variability within a single sample or group. 6. The correct answer is a. Yes, the dependent variable is continuous and measured in interval form. This question is related to the assumption of the normality of the dependent variable in statistical analysis. 7. The correct answer is a. Yes, the independent variable is how the book is packaged. This question addresses the nature of the independent variable and whether it consists of two or more unrelated groups. 8. The correct answer is d. Yes, there is independence of observation. The three packing methods don't have anything to do with each other and are not combined. This question explores the assumption of independence in statistical analysis. 9. The correct answer is b. Graphical analysis is an easy way to check for outliers. By visually inspecting the data using plots such as box plots or scatter plots, outliers can be identified. 10. The correct answer is a. Levene's test is commonly used to test for unequal assumptions when data within each group is normal. It assesses whether the variances of different groups are significantly different. 11. The correct answer is c. If unable to validate the sixth assumption, the name of the statistical calculation that is performed to provide a p-value is Levene's test. It tests for equality of variances across groups. 12. The correct answer is b. Minitab's test options allow for three comparisons: one sample with a target, two samples with each other, or more than two samples. Minitab assists in choosing the appropriate statistical test based on the comparison needed. 13. The correct answer is b. If you are comparing the means for more than two samples of continuous data, the appropriate test to use is the 1-Way ANOVA (Analysis of Variance). It assesses whether there are significant differences in means across multiple groups. 14. The correct answer is d. If you are comparing attributed data, the appropriate test to utilize is the Chi-square test. It examines the association or independence between categorical variables.
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0.275÷0.25 with working
plsss its very urgent!!!!
Answer:
ok
Step-by-step explanation: i explain wait for sometime
Write the equation in slope-intercept form that corresponds with this table.
The equation in slope-intercept form that corresponds to this table is y = x + 2.
In order to write the equation in slope-intercept form that corresponds with a given table, one should follow the following steps;
Determine the slope of the line by selecting any two points from the tableSubstitute the slope, and the coordinates of one of the points into the slope-intercept formulaSimplify the equation to its slope-intercept form
The slope-intercept formula is y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept of the line.
The y-intercept is the point at which the line crosses the y-axis.The table below shows the x and y values for a given data: x y 1 3 2 4 3 5 4 6To determine the slope of the line,
we can select any two points from the table and apply the formula for slope, which is: Slope = change in y/change in x or (y2 - y1)/(x2 - x1)Let's choose points (1,3) and (2,4):
Slope = (4 - 3)/(2 - 1) = 1/1 = 1Now, we substitute the slope value and one of the points into the slope-intercept formula and solve for b.
We can choose any of the points, but let's use (1,3):y = mx + by = 1x + b3 = 1(1) + bb = 3 - 1 = 2The value of b is 2. Now that we have both m and b, we can write the equation in slope-intercept form:y = mx + by = 1x + 2y = x + 2
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Christian owed his dad $5. He got $23 for his birthday. After paying his dad, how much money does he have?
Answer:
18
Step-by-step explanation:
Please help I’ll give you Brainliest
Answer:
30 degrees/ An Acute Angle (If I'm wrong please comment on my answer)
Step-by-step explanation:
#12
Hi there,
I would really appreciate it if someone could help me solve
these . PLEASE SHOW YOUR WORK, so I can understand much
better.
thank you, advance
The tree shown below casts a shadow 56 feet long when a man 5 feet tall casts a shadow 7 feet long. Find the height h of the tree. (Let y = 5 ft, x = 7 ft, and b = 56 ft.) ft h = h x
The height of the tree is h = 40 ft. We can set up a proportion based on the similarity of the triangles formed by the man and the tree.
To find the height of a tree given the length of its shadow and the height and shadow length of a man, we can use similar triangles. By setting up a proportion, we can solve for the height of the tree.
Let's consider the given information: the height of the man is y = 5 ft, the shadow length of the man is x = 7 ft, and the shadow length of the tree is b = 56 ft. We can set up a proportion based on the similarity of the triangles formed by the man and the tree:
y/x = h/b
Substituting the given values, we have:
5/7 = h/56
To solve for h, we can cross-multiply:
7h = 5 * 56
7h = 280
Dividing both sides by 7, we get:
h = 40
Therefore, the height of the tree is h = 40 ft.
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The tree shown below casts a shadow 56 feet long when a man 5 feet tall casts a shadow 7 feet long. Find the height h of the tree. (Let y = 5 ft, x = 7 ft, and b = 56 ft.) ft h = h x
What is the slope of the equation?
y = 2x - 3
Answer:
2
Step-by-step explanation:
