Answers
Answer:
The slope is 2/1 which is 2 (rise over run)
Step-by-step explanation:
Related Questions
The vertex form of the equation of a parabola is y = 2(x+ 4)2 - 7.
What is the standard form of the equation?
Answers
Answer:
100%
Step-by-step explanation:
your answer is 4x + 9
The average test score for 8 students is 5 the scores for 7 of the 8 students are shown what is the score of the 8th student
Answers
Answer:
70
Step-by-step explanation
Find the diagram attached
Average = Sum of scores/sample size
Given the 7 numbers
20, 20, 20, 30, 80, 80, 80
Average = 50
5 = 20+20+20+30+80+80+80+x/8
x is the score of the 8th student
50 = 330+x/8
400 = 330+x
x = 400-330
x = 70
Hence the score of the 8th student is 70
Las edades de los estudiantes de primer semestre de preparatoria oscilan entre
14 y 17 años. En un salón de 18 alumnos se tienen los siguientes datos.
Alumnos 1 2 3 4 5 6 7 8 9 1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
Edades 1
6
1
5
1
7
1
4
1
4
1
4
1
4
1
5
1
5
1
6
1
6
1
6
1
6
1
7
1
7
1
5
1
5
1
5
Answers
Answer:
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee hiiii
Step-by-step explanation:
Which exponential function has an x-intercept?
Answers
Answer:
y = a^x is an exponential function with an x intercept.
Step-by-step explanation:
y = a^x is the standard form of an exponential function.
how many degrees does the minute hand of a clock turn in 45 minutes
Answers
The clock minutes rotate 270 degrees in 45 minutes.
How to calculate the angular size of a clock's handsWhile rotating, the clock's hands are seen to move at a speed of six degrees per minute.
The number of degrees for a clock minute is solved by
60 minutes = 360 degrees
1 minute = ?
cross multiplying
60 * ? = 360
? = 360 / 60
? = 6
hence 1 minute is 6 degrees
The formula to use to get the calculation is multiplying the number of minutes by 6
Number of degrees in 45 minutes = 45 * 6
Number of degrees in 45 minutes = 270 degrees
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Simplify the following and leave your answer in smallest form
1 + 2 + 1
_ _ _
2 3 6
Answers
Answer:
1/59
Step-by-step explanation:
Answer:
1/59
think of it dude
5. 3x + 5
(x = -6)
will give 5 stars
Answers
Answer:
-13
Step-by-step explanation:
A circle has exactly four lines of symmetry.
True
Or
False
Answers
Answer:
no false it has infinite
Determine the derivative with quotient rule and find the equation of the tangent to f(x) at x=0
Answers
ANSWER
\(\text{ The derivative of the function is; }\frac{\text{ dy}}{\text{ dx}}\text{ = }\frac{\text{ -2x}^2\text{ + 2}}{\text{ \lparen x}^2\text{ + 1\rparen}^2}\)EXPLANATION
Given that;
\(\text{ f\lparen x\rparen = }\frac{\text{ 2x}}{\text{ x}^2\text{ + 1}}\)Let U(x) = 2x and V(x) = x^2 + 1
Apply the quotient rule to find the derivative of f(x)
\(\text{ }\frac{\text{ dy}}{\text{ dx}}\text{ = }\frac{\text{ V}\frac{\text{ dU}}{\text{ dx}}\text{ - U }\frac{dv}{\text{ dx}}}{\text{ V}^2}\)Differentiate U and V with respect to x
\(\begin{gathered} \text{ U\lparen x\rparen = 2x} \\ \text{ }\frac{\text{ du}}{\text{ dx}}\text{ = 2} \\ \\ \\ \text{ V\lparen x\rparen= x}^2\text{ + 1} \\ \text{ }\frac{dv}{\text{ dx}}\text{ = 2x} \end{gathered}\)Hence, we have
\(\begin{gathered} \text{ }\frac{\text{ dy}}{\text{ dx}}\text{ = }\frac{(x^2\text{ + 1\rparen}\times2\text{ - 2x\lparen2x\rparen}}{(x^2\text{ + 1\rparen}^2} \\ \\ \text{ }\frac{\text{ dy}}{\text{ dx}}\text{ = }\frac{\text{ 2x}^2\text{ + 2 - 4x}^2}{(x^2\text{ + 1\rparen}^2} \\ \\ \text{ }\frac{\text{ dy}}{\text{ dx}}\text{ = }\frac{\text{ -2x}^2\text{ + 2}}{\text{ \lparen x}^2\text{ + 1\rparen}^2} \end{gathered}\)four students determined the vertical asymptote for this rational function. which student is correct in their approach and final answer?
Answers
The vertical asymptotes for the given function are x = 4 and x = -4.`Therefore, Student A is correct in their approach and final answer.
Given the rational function is `f(x) = (x + 3) / (x² - 16)`.To find the vertical asymptote for the given rational function `f(x) = (x + 3) / (x² - 16)` for four students and to identify who is correct in their approach and final answer, first, we have to find the vertical asymptote of the given function. We know that the vertical asymptotes occur at the zeroes of the denominator when the numerator is not zero. Thus, the denominator must equal zero at `x = -4` and `x = 4`. So, the vertical asymptotes occur at `x = -4` and `x = 4`.Hence, the correct approach and final answer for vertical asymptote of the given rational function is Student A. Student A: `The vertical asymptotes are the vertical lines that indicate where the function becomes unbounded. These lines occur when the denominator of the rational function is zero and the numerator is not zero.
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The question asks for four students determined the vertical asymptote for this rational function. The correct approach and answer is needed.
Therefore, the correct student's answer is (D) which indicates there are three vertical asymptotes at x = –2,
x = 1, and
x = 4.
Let's find the answer to the question: To find the vertical asymptote of the rational function, we need to find out when the denominator is equal to zero. We can factor the denominator, so we have (x + 2) (x – 1) (x – 4). The denominator will be equal to zero when any of the three factors are equal to zero:
(x + 2) = 0
(x – 1) = 0,
or (x – 4) = 0.
Solving each equation, we find the following values for x:
x = –2,
x = 1,
and x = 4
Therefore, the correct student's answer is (D) which indicates there are three vertical asymptotes at x = –2,
x = 1, and
x = 4.
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Patel is solving 8x2 16x 3 = 0. which steps could he use to solve the quadratic equation? select three options. 8(x2 2x 1) = â€""3 8 x = â€""1 plus or minus startroot startfraction 5 over 8 endfraction endroot x = â€""1 plus or minus startroot startfraction 4 over 8 endfraction endroot 8(x2 2x 1) = 3 1 8(x2 2x) = â€""3
Answers
Answer: 8(x2 + 2x) = –3
8(x2 + 2x + 1) = –3 + 8
x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot
Step-by-step explanation: I hope i did this right?
Answer:
A. 8(x2 + 2x + 1) = –3 + 8
B. x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot
E. 8(x2 + 2x) = –3
Step-by-step explanation:
On edge 2022
put any question u want bc i cant think of one :( and plspls hurry i need this done today this is math.
Initial Question:
What I Know:
Point of Confusion:
Steps:
Answers
Answer:
Initial Question: How to find percent of a number?
What I know: Percents can be written as decimals.
Points of confusions: What do I do next after turning the percent into a decimal?
Steps: *Example* What is 60% of 30:
60% = .60
.60 x 30 = 18
Step-by-step explanation:
Hope this helps.
19. Graph the function 3x + 2y = 8 with the given
domain: (-2,0, 2, 4}
TEK 3C
Justify/Show your work:
Answers
Answer:
Step-by-step explanation:
the researcher plans to examine the effects on a groyup of randomly selecred subjects. what is wronhg with this design
Answers
In random assignment design the subjects are not randomly assigned to an experimental group and control group.
What is random assignment?Random assignment improves the study's internal validity by ensuring that there are no systematic differences between the participants in each group. This allows you to conclude that the outcomes are due to the independent variable.In most cases, participants are randomly assigned to one of two groups: control or experimental. We can assume that the groups are essentially identical with the exception of the manipulation of the independent variable in the experimental group because participants are randomly assigned to either group.Random assignment is important in experimental research because it ensures that the experimental and control groups are comparable and that any differences between them are due to random chance.The complete question:
"A researcher wishes to examine the effects of a new medical treatment on patients with Alzheimer's disease. The researcher plans to examine the effects on a group of randomly selected subjects. What is wrong with this design?
Select all that apply.
A. Subjects are not randomly assigned to an experimental group and
control group.
B. A control group is not used.
C. Only one researcher is used.
D. An entire population is not used."
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Which number has 21 as a multiple? 2 6 7 11
Answers
Answer:
7
Step-by-step explanation:
7x3=21
Answer:
7
Step-by-step explanation:
21÷7=3
Arrange from shortest to longest time:
3.44 ns
7.48 x 10^2 ps
1.55 x 10^-3 ms
Answers
To arrange the given times from shortest to longest, let's convert all the times to a common unit for easier comparison. Let's convert all the times to seconds (s). The correct arrangement from shortest to longest time is: 7.48 x \(10^{-4}\)µs, 3.44 x \(10^{-3}\) µs, 1.55 µs
1 ns = 10^-9 s (nanoseconds to seconds)
1 ps = 10^-12 s (picoseconds to seconds)
1 ms = 10^-3 s (milliseconds to seconds)
3.44 ns = 3.44 x 10^-9 s
7.48 x 10^2 ps = 7.48 x 10^-10 s
1.55 x 10^-3 ms = 1.55 x 10^-6 s
Arranging the times from shortest to longest:
7.48 x 10^-10 s (ps)
3.44 x 10^-9 s (ns)
1.55 x 10^-6 s (ms)
Therefore, the arranged times from shortest to longest are:
7.48 x 10^-10 s (ps) < 3.44 x 10^-9 s (ns) < 1.55 x 10^-6 s (ms)
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PLEASE HELP WILL MARK BRAINLY
1. What is the total price of a $50,000 house plus 7.5% sales tax?
2. What is the total price of a $15,000 car plus 6.5% sales tax?
3.The ratio of boys to girls in the assembly was 3 to 2. If 60 boys were in the assembly,
how many girls were there?
4.The ratio of dogs to cats at the vet was 4 to 3. If 210 pets were in the vet, how many cats were there?
5.11. Diagram this statement. John gave one fifth of his 255 baseball cards to his sister.
a. What percent of his baseball cars did he give to his sister?
b. How many baseball cards did he have left?
Answers
Answer:
1: $53750
2: $15975
3: 40
4: 90
5: 51
6a: 20%
6b:204
Step-by-step explanation:
1: to calculate this mulitply 50000*1.075= 53750
2: same deal 15000*1.065=15975
3: We have a ratio of 3:2 and then 60:x because we multiplied the first ratio by 20 to get the 60 in the second we multiply the 2 by 20 as well and get x=40
4: This one is kind of tricky. we know that there are 4 dogs for every 3 cats. We also know that there are 210 animals. This means that 4x+3x=210 solve this and get x=30 you then multiply the ratio 4:3 by 30 and get 120:90
5: 1/5*255=51
5a: 1/5=.2=20%
5b: 255-51=204
Answer:
1. What is the total price of a $50,000 house plus 7.5% sales tax?
answer
total price =$50000+7.5% of 50000=$53750
2. What is the total price of a $15,000 car plus 6.5% sales tax?
total price =$15,000+6.5% of $15,000=$15975
3.The ratio of boys to girls in the assembly was 3 to 2. If 60 boys were in the assembly,
how many girls were there?
let ratio be 3x and 2x
we have
3x=60
x=60/3=20
no of girls =2x=2×20=40
4.The ratio of dogs to cats at the vet was 4 to 3. If 210 pets were in the vet, how many cats were there?
let ratio be 4x and 3x
we have
4x+3x=210
x=210/7=30
no of cats =3x=3×30=90
Use the drop-down menu to complete the statement.
What is 3 ÷
2
5
?
To find the quotient, jump groups of
Answers
Answer:
is that 2.5 or 25?
Step-by-step explanation:
qihdiwhdwjubc
[Inequalities]
Please help and thanks.
![[Inequalities]Please help and thanks.](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/bCQvXVCRE6GUaDeNQu2DoTTSTKNB6mMw.png)
Answers
Answer:
First blank is >=
Second blank is <=
Step-by-step explanation:
At least means the sign is greater than or equal to
No more than means the sign is less than or equal to
(Q1) Given: ΔABC; ray DB→ is the perpendicular bisector of AC¯;AB=12 inWhat is the length of CB¯ ?By what Theorem?
Answers
The length of CB is 4√(3), and we used the Pythagorean theorem and the perpendicular bisector theorem to solve for it.
By the perpendicular bisector theorem, if a point lies on the perpendicular bisector of a line segment, then it is equidistant from the endpoints of the segment. Therefore, in triangle ABC, since ray DB is the perpendicular bisector of AC, it follows that BD = DC.
Let x be the length of CB. Then, by the Pythagorean theorem in triangle ABC, we have:
\(AB^2 + BC^2 = AC^2\)
Substituting AB = 12 and BD = DC = x/2, we get:
\(12^2 + x^2 = (2x)^2\)
\(144 + x^2 = 4x^2\)
\(3x^2 = 144\)
\(x^2\)= 48
x = √(48) = 4√(3)
Therefore, the length of CB is 4√(3), and we used the Pythagorean theorem and the perpendicular bisector theorem to solve for it.
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Question 11 (2 points) Use the mapping data below to answer the following questions: Genotype a* b* c* a b с a b c a a b c a b c a b c a b c What is the map distance between gene b and gene c? [190/800]* 100 [180/800] 100 [260/800]* 100 [370/800] 100 [(800-430)/800] * 100 b c Number scored 220 210 40 30 50 60 90 100 a b c a b c What is the map distance between gene b and gene c? W [190/800] 100 [180/800] 100 [260/800]* 100 * [370/800] 100 [(800-430)/800] * 100 [430/800] 100 [110/800] 100 [300/800]* 100 [70/800]* 100 90 100
Answers
The map distance between gene b and gene c is [260/800] * 100.
To determine the map distance between gene b and gene c, we need to analyze the mapping data provided. In the data, we observe that the number scored for gene b is 210, while the number scored for gene c is 40. These numbers represent the frequency of each gene in the population.
The map distance between two genes is calculated based on the frequency of recombinant offspring that result from crossing over between the genes during meiosis. In this case, the recombinant offspring are those individuals that have a different combination of alleles for gene b and gene c compared to the parental genotypes.
The map distance is calculated by taking the number of recombinant offspring and dividing it by the total number of offspring scored. In this scenario, the number of recombinant offspring for genes b and c is 40. The total number of offspring scored is 800 (as indicated in the data).
Therefore, the map distance between gene b and gene c is [40/800] * 100, which simplifies to [1/20] * 100, or [260/800] * 100.
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6630 was rounded to the nearest ten. What is the lower bound? this is urgent plz answer fast
Answers
Answer: 6630
Step-by-step explanation:
When rounding to the nearest ten, like we did with 6630 above, we use the following rules:
A) We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.
B) We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4.
C) If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.
What is the unit rate of 450 miles in 7 hours?
Answers
Answer:60 mph
Step-by-step explanation:
Answer: 60 mph (miles per hour)
Explain:
You can get the same answer as what it shows from the internet, but a faster way to explain why this is the answer is dividing 420 to 7, and that equals 60 miles per hour. Have a good day!.
Question 14
Jackie bought an equal number of tulip bulbs and daffodil bulbs. Along the length of her garden, Jackie planted 6
daffodil bulbs and 3 tulip bulbs per foot. She has 5 daffodil bulbs and 29 tulip bulbs remaining to plant elsewhere.
How long is Jackie's garden? How many tulip and daffodil bulbs did Jackie buy?
Part A
Write a system of equations that represents the situation.
y = 6x+
y=
Part B
x+
Solve the system of equations. Express the coordinates as decimals if necessary.
Answers
By making linear equations, Jackie's garden is 8 feet long, and she bought 8 tulip bulbs and 8 daffodil bulbs.
what exactly are linear equations?
Linear equations are mathematical equations that can be written in the form ax + b = c, where x is the variable, a, b, and c are constants, and a is not equal to 0. The solution to a linear equation is the value of the variable that makes the equation true. Linear equations are used to represent lines on a graph, and they have many practical applications in fields such as economics, engineering, and physics.
Now,
Let's call the number of tulip and daffodil bulbs that Jackie bought as x.
From the information given, we know that the number of daffodil bulbs planted in the garden is 6x and the number of tulip bulbs planted in the garden is 3x.
We also know that Jackie has 5 daffodil bulbs and 29 tulip bulbs remaining to plant elsewhere, so the total number of daffodil bulbs Jackie bought is 6x + 5 and the total number of tulip bulbs is 3x + 29.
Since Jackie bought an equal number of tulip and daffodil bulbs, we can set these two expressions equal to each other:
6x + 5 = 3x + 29
Simplifying this equation, we get:
3x = 24
x = 8
So Jackie bought 8 tulip bulbs and 8 daffodil bulbs.
The number of daffodil bulbs planted in the garden is 6x = 6(8) = 48 and the number of tulip bulbs planted in the garden is 3x = 3(8) = 24.
To find the length of the garden, we can divide the total number of bulbs planted in the garden by the number of bulbs planted per foot:
Length of garden = (48 + 24) / (6 + 3) = 8 feet
Therefore, Jackie's garden is 8 feet long, and she bought 8 tulip bulbs and 8 daffodil bulbs.
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find the volume of the figure please.
Answers
Answer:
Step-by-step explanation:
area of side face=(37+15)/2 ×25.7=26×25.7 cm²
volume=26×25.7×20=13364 cm³
Which of the following expressions(s) are third-degree binomials? Select all that apply. A 2у – ху+7 B 3x®y + 5xy зу + 3xЗу Зxy - Зху
Answers
Answer:
A&C
Step-by-step explanation: hoped I helped
an automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. in an earlier study, the population proportion was estimated to be 0.31 . how large a sample would be required in order to estimate the fraction of new car buyers who prefer foreign cars at the 95% confidence level with an error of at most 0.03 ? round your answer up to the next integer.
Answers
The required sample size is 907.
We have,
To determine the required sample size for estimating the fraction of new car buyers who prefer foreign cars over domestic with a 95% confidence level and an error of at most 0.03, we'll use the following formula:
n = (Z² x p (1 - p)) / E²
Where:
- n is the required sample size
- Z is the Z-score for the desired confidence level (1.96 for a 95% confidence level)
- p is the estimated population proportion (0.31)
- E is the margin of error (0.03)
Step-by-step calculation:
1. Calculate Z²: 1.96² = 3.8416
2. Calculate p (1 - p): 0.31 x (1 - 0.31) = 0.2139
3. Calculate E²: 0.03² = 0.0009
4. Substitute these values into the formula: n = (3.8416 x 0.2139) / 0.0009 = 906.92
Since we need to round up to the next integer, the required sample size is 907.
Thus,
The required sample size is 907.
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What is the slope of this line?
Answers
Answer:
the slope is 2/3
Step-by-step explanation:
the slope of this line can be found by counting how many points up and over it is from one point to another where the line has definite coordinates (rise/run). in this case, its 2 places up and 3 places over, making it 2/3.
hopefully that helps! plz consider brainliest! :)
Evaluate:
2a + 7b for a = 5 and b = 3
Answers
Answer:
31
Step-by-step explanation:
Substitute the values for the variables.
\(2(5)+7(3)\\10+21\\31\)
hello,
substitute in the numbers
2(5) + 7(3)
10 + 21
= 31
There are y narts to this question. Yiu war be anked to movide fint 1 answer in each part. In our dataset we obsenve thiee variables that we strangly befieve do not have a relabonhip with wages, but that are correlated with the endoeenour variable riciuct. These variables mee dixt, which denotes the distance between the wroticer's viliage and the closest school, wralh yofene. Which is a dummin variable that takes the value of 1 if the worker regularly brushes hiv/her teeth ithe eovemment provides a free toothbrunh to each citizen and we believe that more educated people tend to brush their teeth more offen, and library, which is a dummy variable that takes the value of 1 if the worker has access to a library in his/her viliage. We estimafe our regression model using TSIS We want to test if our instruments satisfy the relevance requirement. In the 1 st stage of TSLS we estimate the following equation: edue =π0+π1 diat +π2 aralhygiene +π1 hitrary +π4 erper +NH What is the null hypothesis to test for instruments' relevance? A) H0:π1=π2=π3=π4=0. B) H0:π1=π2=π3=0. C) H0:π2=π3=π4=0. D) H0:π2=0 or π3=0 or π4=0. E) HD:π1=0 or π2=0 or π3=0. F) H0:π1=0 or π2=0 or π3=0 or π4=0. Answer:
Answers
The null hypothesis to test for instruments' relevance is option D) H0:π2=0 or π3=0 or π4=0.In order to test the relevance of the instrument, the first stage equation's null hypothesis should be stated as: H0: π2 = 0 or π3 = 0 or π4 = 0.The relevance requirement will be fulfilled if we can refute the null hypothesis.
The null hypothesis will not be rejected if the F-statistic is less than 10.0. However, if the F-statistic is greater than 10.0, the null hypothesis will be rejected, indicating that the variables are relevant and that the instrument satisfies the relevance requirement.In summary, to test for instruments' relevance in TSLS, the null hypothesis of the first stage equation is stated as H0: π2 = 0 or π3 = 0 or π4 = 0.
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