Answer:
(0.755, 0.845)
Step-by-step explanation:
I got it right, on the test so trust me!
What is the slope of a line that passes through the points (5,-3) and (13, -9)
Step-by-step explanation:
the slope is the ratio of "y coordinate change / x coordinate change" when going from one point to the other.
so, we see
x changes by +8 (from 5 to 13).
y changes by -6 (from -3 to -9).
so, the slope is -6/+8 = -3/4
Hello.
Let's find the slope using the slope formula:
[tex]\mathrm{\displaystyle\frac{y2-y1}{x2-x1} }[/tex]
[tex]\mathrm{\displaystyle\frac{-9-(-3)}{13-5} }[/tex]
[tex]\mathrm{\displaystyle\frac{-9+3}{13-5} }[/tex]
[tex]\mathrm{\displaystyle\frac{-6}{8} }[/tex]
The fraction can be simplified:
[tex]\mathrm{\displaystyle-\frac{3}{4} }[/tex]
Therefore, the slope is
[tex]\mathrm{\displaystyle-\frac{3}{4} }[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
PLEASE AWNSER WILL GIVE 100 POINTS!!!!!!!!!!! PLUS BRAINLEST!!
Slope:-
[tex]\\ \rm\rightarrowtail m=\dfrac{4+3}{-1}=\dfrac{-7}{1}=-7[/tex]
Equation in slope intercept form
[tex]\\ \rm\rightarrowtail y-4=-7(x)[/tex]
[tex]\\ \rm\rightarrowtail y=-7x+4[/tex]
Answer:
[tex]y=-7x+4[/tex]
Step-by-step explanation:
Formulae
Slope-intercept form of a linear function: [tex]y = mx + b[/tex]
(where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept)
Point-slope form of a linear function: [tex]y-y_1=m(x-x_1)[/tex]
(where [tex]m[/tex] is the slope and [tex](x_1,y_1)[/tex] is a point on the line)
Slope formula
[tex]\textsf{slope}=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
(where [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are points on the line)
Solution
Choose 2 points on the line:
Let [tex](x_1,y_1)[/tex] = (0, 4)Let [tex](x_2,y_2)[/tex] = (1, -3)Find the slope using the slope formula:
[tex]\implies \textsf{slope}=\dfrac{-3-4}{1-0}=-7[/tex]
Substitute found value for [tex]m[/tex] and point (0, 4) into the point-slope formula:
[tex]\implies y-4=-7(x-0)[/tex]
[tex]\implies y=-7x+4[/tex]
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use either the traditional method or P-value method as indicated. Identify the null and alternative hypotheses, test statistic, critical value(s) or P-value (or range of P-values) as appropriate, and state the final conclusion that addresses the original claim. Choose the correct option based on the problem information.
A large software company gives job applicants a test of programming ability and the mean for that test has been 160 in the past. Twenty-five job applicants are randomly selected from one large university and they produce a mean score and standard deviation of 183 and 12, respectively. Use a 0.05 level of significance to test the claim that this sample comes from a population with a mean score greater than 160. Use the P-value method of testing hypotheses. Choose the correct P-value and conclusion based on the null hypothesis.
A. P-value < 0.005. Fail to reject H0.
B. 0.01 < P-value < 0.025. Reject H0.
C. P-value < 0.005. Reject H0.
D. P-value = 0.05. Reject H0.
Answer:
C
explanation:
if The P-Value is low reject H0
The correct P-value and conclusion based on the null hypothesis. The correct option is C. P-value < 0.005. Reject H₀.
In this problem, we will use the P-value method to test a claim about the mean score of job applicants in a programming test. The claim is whether the sample of 25 job applicants from a large university comes from a population with a mean score greater than 160, given that the population is normally distributed. We'll use a significance level of 0.05 to make our decision. We'll set up the null and alternative hypotheses, calculate the test statistic, and find the P-value to draw a conclusion about the claim.
Let's begin by defining the null and alternative hypotheses:
- Null Hypothesis (H₀): The mean score of job applicants from the university is not greater than 160. H₀: μ ≤ 160.
- Alternative Hypothesis (H₁): The mean score of job applicants from the university is greater than 160. H₁: μ > 160.
Here, μ represents the true population mean score.
Next, we'll calculate the test statistic. Since the population standard deviation (σ) is not known, we'll use the sample's standard deviation (s) and perform a one-sample t-test. The formula for the t-test is:
t = (x' - μ₀) / (s/√n)
Where:
x' is the sample mean,
μ₀ is the hypothesized population mean under the null hypothesis (μ₀ = 160 in this case),
s is the sample standard deviation, and
n is the sample size.
Substituting the given values:
x' = 183 (sample mean)
μ₀ = 160 (hypothesized population mean under H0)
s = 12 (sample standard deviation)
n = 25 (sample size)
t = (183 - 160) / (12/√25)
= 23 / 2.4
≈ 9.583
Now, we need to find the P-value corresponding to this test statistic. Since this is a one-tailed test (claiming that the mean is greater than 160), we look for the area under the t-distribution curve to the right of t = 9.583.
By consulting a t-table or using statistical software, we find that the P-value is significantly less than 0.001. The exact P-value is not provided in the answer options, but it's crucial to note that it is well below 0.005.
Now, we compare the P-value to the significance level (α = 0.05). Since the P-value < α, we reject the null hypothesis (H₀). The data provides strong evidence to support the claim that the mean score of job applicants from the university is greater than 160.
The correct option is C. P-value < 0.005. Reject H₀. The statistical analysis indicates that there is strong evidence to support the claim that the mean score of job applicants from the university is greater than 160.
To know more about Hypothesis here
https://brainly.com/question/31804924
#SPJ2
The diameter of the pizza is 10 inches what is the conference of the pizza use 3.14 for pie
Simply the expression by combining like terms.
9x+8+3x+4=
4 in
4 in
4 in
d the volume of the triangular prism.
A) 6 ind
B) 12 in?
() 32 in
D) 64 in)
What fraction of an hour is 25 minutes?
Answer with steps I will mark u as BRAINLIEST ANSWER if u help me
Answer:
5/12
Step-by-step explanation:
1 hour = 60 minutes
[tex]\dfrac{25}{60}=\dfrac{5*5}{5*12}=\dfrac{5}{12}[/tex]
The fraction of an hour that is equivalent to 25 minutes is 5/12
Data;
1 hour = 60 minutestime = 25 minutesFractionsThe fraction of an hour that is equivalent to 25 minutes would be the ratio between 25 minutes to 60 minutes which is one hour.
[tex]\frac{25}{60} = \frac{5}{12}[/tex]
The fraction of an hour that is equivalent to 25 minutes is 5/12
Learn more on fractions here;
https://brainly.com/question/1622425
Classify the angles in the figure by choosing the correct term from the choices below.
supplementary
complementary
vertical
none of these
Answer: none of these
Step-by-step explanation:
They are not supplementary because 101+77 = 178 and not 180.
They are not complementary because 101+77 = 178 and not 90.
They are not vertical because there are no intersecting lines and the two angle measures are not equal.
Therefore, none of these are true.
What is the value of x
Answer:
X=55
Step-by-step explanation:
It says 15, so what you want to do is times 15x14 because those are the only sides of the shape. After you multiply 15x14 which is 60, you need to minus 5 because it shows a subtraction sign. So, 60-5= 55. X=55
Every year, Alice's family runs the sand castle contest during the Fun in the Sun beach festival. Alice's job is to deliver empty buckets to the teams. This year, Alice hands out the same number of buckets to each of the 15 teams in the contest. Each team gets 8 buckets.
Use an equation to find the total number of buckets Alice delivers.
Answer:
120 buckets
Step-by-step explanation:
If there are 15 teams and each team gets the same number of buckets (8 buckets as mentioned in the problem), then you can multiply 15 by 8 to get 120.
15 teams * 8 buckets = 120 total buckets
The vertices of quadrilateral WXYZ are W(-5,5), X(-3, 8), Y(6, 2), and Z(4, -1). What choice is the best description of quadrilateral?
A. Trapezoid
B. Square
C. rhombous, that is not square
D. rectangle, that is not square
Please provide explanation. DOn't just say one option.
Quadrilaterals are shapes with four sides
The description of the quadrilateral is (d) rectangle, that is not square
How to determine the shapeThe coordinates are given as:
W(-5,5), X(-3, 8), Y(6, 2), and Z(4, -1)
Next, we plot the coordinates on a graph (see attachment)
From the attachment, we can see that the coordinates form a rectangle
Hence, the description of the quadrilateral is (d) rectangle, that is not square
Read more about quadrilaterals at:
https://brainly.com/question/16691874
write the following expression as a product of a repeated variable. Do not use any exponents in your answer. c^5
Answer:
C*C*C*C*C
Step-by-step explanation:
C^5 is C times itself 5 times hence C*C*C*C*C. Hope this helps.
1 quart = ? pints=?cups
[tex]\Huge\green{\tt{✏Answer✏}}[/tex]
1 us liquid quart =
2 us liquid pints[tex]\Huge\blue{\tt{✏Explanation✏}}[/tex]
#CarryOnLearning
hit that heart and dont forget to follow hehe thx<3[tex]\color{blue}{⊱─━━━━━━━━⊱༻●༺⊰━━━━━━━━─⊰}[/tex]
[tex]\huge{꧁༒Maizen༒꧂}[/tex]
[tex]\color{blue}{⊱─━━━━━━━━⊱༻●༺⊰━━━━━━━━─⊰}[/tex]
The equation for line p can be written as y= – 5/4 x–6. Line q includes the point (5, – 8) and is parallel to line p. What is the equation of line q?
Answer:
y = -(5/4)x - (1 3/4)
Step-by-step explanation:
A line parallel to y= -(5/4)x - 6 will have the same slope, -(5/4), but a different value for the y-intercept, which is -6 in this equation. This means we can write:
y = -(5/4)x + b
As klong a b is not -6, the line will be parallel. But we are told that point (5,-8) must be on the new line. That means we need to select a value of b to make that happen. By shifting b, we can move the straight line up or down. To move it so that it goes through (5,8), enter that point in the equation and solve for b:
y = -(5/4)x + b
-8 = -(5/4)*5 + b for (5,-8)
-8 = -(25/4) + b
b = -8 + (25/4)
b = -(32/4)+(25/4)
b = -(7/4) or - 1 3/4
The parallel line that goes through (5,-8) is y = -(5/4)x - 2
Answer:
y=-5/4x-7/4
Step-by-step explanation:
(100 points) scatter plot is shown.
A scatter plot is shown with numbers from 1 to 10 at increments of 1 on the x axis and numbers from 0 to 10 at increments of 1 on the y axis. The ordered pairs 0, 2 and 1, 3 and 1, 9 and 1.2, 4 and 1.9, 4 and 2.6, 4.2 and 3, 5 and 4, 5 and 4, 6 and 4.8, 6.1 and 5, 7 and 5, 7.9 and 6.9, 7.1 and 6, 8 and 7, 3.8 and 7, 8.2 and 7, 9.1 and 7.1, 9.8 and 8, 10 and 10, 7 and 9, 5.
How many outliers does the graph show?
1
2
3
4
Answer:
The graph shows 2 outliers. The scatter plot consist on a straight pattern. As seen, only 2 points are not within the straight line. We can conclude that only two points are outliers. =
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
I just took the test do not listen to the other persons answer or you will get it wrong. :) no offense. Have a great day everyone.
8 x five sixths PLEASE HELP ME ASAP
a fifty three sixths
b forty sixths
c thirteen forty eighths
d five forty eighths
Oscar spent two thirds hour each night doing homework for five nights this week. How many hours of homework did Oscar complete this week?
seven and one half hours
three and one third hours
two and one third hours
one and one fifth hours
Answer:
v thirteen forty eights
seven and one half hours
8 x 5/6
8 x 5 = 40
40/6
The answer is B) 40/6.What is the probability of landing on red and rolling a number greater than 2?
Using it's concept, considering a spinner with four sections and a die with 6 numbers, there is a [tex]\frac{1}{6}[/tex] probability of landing on red and rolling a number greater than 2.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem:
The spinner has 4 sections, one of which is red, hence P(A) = 1/4.The die has 6 numbers, four of which are greater than two, hence P(B) = 4/6.The events are independent, hence:
[tex]P(A \cap B) = P(A)P(B) = \frac{1}{4} \times \frac{4}{6} = \frac{1}{6}[/tex]
[tex]\frac{1}{6}[/tex] probability of landing on red and rolling a number greater than 2.
More can be learned about probabilities at https://brainly.com/question/14398287
Determine whether the sample is biased or unbiased. Explain.
You want to estimate the number of students in your school who
play a musical instrument. You survey the first 15 students who
arrive at a band class.
Answer:
the sample is biased
Step-by-step explanation:
Explain how you can use a 10 by 10 grid to model 42%
a 10-by-10 grid means there are 100 squares and percent is out of 100 so if you have 42% then you just need to fill in 42 squares
Find the circumference and area of the circle. Use 3.14 for . Round to the nearest hundredth if necessary.
3 m
Which number is not a rational number?
-4 4/11
Given mn, find the value of x.
(x+5)*(x-13)
x²-13x+5x-65
x²-8x-65
(x+5)(x−13)
Domain
x∈R
Range
y∈[−81,∞)
Zeros
x=−5; x=13
Y-intercept
y=−65
Minima
(4,−81)
Find angle measure x on each given figure. (Lessons 9.2, 9.4, 9.5)
1. x = 60 (in this trapezoid, opposite angles are equal)
2. Find the third angle of the left triangle : 180 - 17 - 133 = 30
In a parallelogram, the side that is opposite to a side is parallel to each other.
x and the 30 degree are alternate angles -> x = 30
3. (I'll call the 4 triangles A,B,C,D respectively in anticlockwise)
Triangle A has the 25 degree angle, and the bottom right angle of triangle C, they are alternate angles (and the sides are parallel due to the property.)
So, the bottom right angle of triangle C = 25
Triangle C and D form an isoceles triangle, so x = 25.
4. This one I'll just do short. There's a right angle in the triangle that contains x.
3 angles in a triangle add up to 180, so x = 180 - 90 - 50 = 40.
The local firemen have a 50 ft. ladder. They need to get to the top a 48 foot building. What is the maximum distance away from the building they can place the foot of the ladder so that the top of the ladder reaches the top of the building?
Answer:14 ft
Step-by-step explanation: 50^2=x^2+48^2(Pythagorean theorem)
x^2=2500-2304
x^2=196
x=14
on a trip road you notice that the gas tank is full 1/4 full. The gas tank can hold 18 gallons,and the vehicle averages 22 miles per gallon.WIll u make it to ur destination 110 miles before you run out of gas.Explain
Answer:
No.
Step-by-step explanation:
First, we need to firgure out what 1/4 of 18 is (4.5). Then, multiply 4.5*22 to see the gallons left by the average traveled each gallon (99). Clearly, 99 is not equal to or greater than 110.
When Akbar’s son was four years old, Akbar put $250 into an account that guaranteed a 10% annual return. The equation f(x)=250(1.10)^x-4 represents the amount of money in the account when the child will be x years old.
Which graph models the scenario?
The graph that models the scenarios must increase upwards since it is a growth rate.
Exponential functionsGiven the exponential function expressed as:
f(x)=250(1.10)^x-4
where
x is the time taken
The graph that models the scenarios must increase upwards since it is a growth rate. The required graph is as shown below;
Learn more on exponential function here: https://brainly.com/question/12940982
Answer:
D on edge
Step-by-step explanation:
Please help!! what is the value of x and please do step by step if possible !
Answer:
x=71 degrees
Step-by-step explanation:
it is a isosceles triangle so the blank angle is also x
angles of a triangle add up to 180
180=38+2x
2x=142
x=71
Please help! I'll give you brainliest for the correct answer!!!
I'll report your answer if it's wrong!
Answer:
0.408
Step-by-step explanation:
Someone help me quick ill give brainleist
Answer:
-2.5 per hour
Step-by-step explanation:
its going down 5 every 2 hours so just divide both by 2 and you got it
which numbers are a surd?
Answer:
Step-by-step explanation:
[tex]\sqrt{6} x \sqrt{10} is a surd\\\sqrt{144} + \sqrt{49}[/tex]is a surd
