Answer:
i don't know if you can make it to the thor or long or short and I can do it again soon and piece you up a little more about the finale of the final.
Answer:
-89
Step-by-step explanation:
if the perimeter of a square is 8√2, find the area of the square
Answer:
Area=128
Step-by-step explanation:
p=8\(\sqrt{2}\)
A=p^2
put value of p
A= (8\(\sqrt{2}\))power2
A= (8^2* \(\sqrt{2}\)^2)
A=64 * 2 (square root of 2 will be cancel by power 2)
A= 128
A box contains 6 red, 3 white, 2 green, and 1 black (total 12) identical balls. What is the least number of balls nevessary to take out randomly ( without looking) to be sure getting, atleast one red ball?
Answer:
7 balls
Step-by-step explanation:
Look for the worst case scenario:
Get 3 white, 2 green, and 1 black.
That adds up to: 3 + 2 + 1 = 6.
+1 red ball: 6 + 1 =7
7 balls
A reporter claims that 90% of American adults cannot name the current vice president of the United States. To
investigate this claim, the reporter selects a random sample of 50 American adults and finds that 28 are unable to name the current vice president. The reporter would like to know if the data provide convincing evidence that fewer than 90% of American adults are unable to name the current vice president. Are the conditions for inference met?
a)Yes, the conditions for inference are met.
b) No, the 10% condition is not met.
c) No, the Large Counts Condition is not met.
d) No, the randomness condition is not met.
Answer:
Not A or D
Step-by-step explanation:
edge 21
Please help ASAP. Trigonometry
Write TWO different equations that you could use to solve for x. You don't need to solve.
Answer:
cos(52°) = 18/x
x = 18·sec(52°)
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that ...
Cos = Adjacent/Hypotenuse
In this geometry, that means ...
cos(52°) = 18/x
You can use the relation sec(x) = 1/cos(x) to rewrite this as ...
x = 18·sec(52°)
_____
You can also use the complementary angle and the complementary trig function.
sin(90° -52°) = 18/x
g(x)=2x+4 solve for c when g(x)-8
Answer: ( g+G) (x) =12+2x
Step-by-step explanation:
i used an math ap it is an app you can get on your phone
Determine whether each of these statements is true or false.a) 0 ∈ ∅ b) ∅∈{0}c) {0}⊂∅ d) ∅⊂{0}e) {0}∈{0} f ) {0}⊂{0}g) {∅} ⊆ {∅}
a) True, b) False, c) False, d) True, e) False, f) False, g) True
a) The statement is true. The symbol "∅" represents the empty set, which does not contain any elements. Since 0 is not an element of the empty set, the statement "0 ∈ ∅" is false.
b) The statement is false. The symbol "{0}" represents a set containing the element 0. The empty set, represented by "∅", does not contain any elements. Therefore, the empty set is not an element of the set {0}.
c) The statement is false. The symbol "{0}" represents a set containing the element 0. However, the empty set, represented by "∅", does not contain any elements. Therefore, the set {0} is not a subset of the empty set.
d) The statement is true. The empty set, represented by "∅", does not contain any elements. Every set is a subset of the empty set, including the set {0}.
e) The statement is false. The symbol "{0}" represents a set containing the element 0. In this case, {0} is not an element of itself. Therefore, the statement "{0}∈{0}" is false.
f) The statement is false. The symbol "{0}" represents a set containing the element 0. In this case, {0} is not a proper subset of itself. Therefore, the statement "{0}⊂{0}" is false.
g) The statement is true. The symbol "{∅}" represents a set containing the empty set. In this case, {∅} is a subset of itself because it contains the element ∅. Therefore, the statement "{∅} ⊆ {∅}" is true.
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what is limit definition of a derivative?
The limit definition of a derivative is a mathematical method used to calculate the instant rate of change of a characteristic at a particular point. it is based at the idea of the limit of a function because the input techniques a certain cost.
The limit definition of a derivative is expressed as follows:
\(f'(x) = lim (h → 0) [f(x + h) - f(x)] /h\)
Wherein f'(x) represents the derivative of the function f(x) at a particular factor x. The expression \(( f(x + h) - f(x)) / h\) represents the common price of alternate of the characteristic over a small interval of size h, focused at x. The limit of this expression as h approaches 0 represents the instant fee of change of the characteristic at x, or the slope of the tangent line to the function at that factor.
The limit definition of a derivative is a fundamental concept in calculus and is used to calculate the slopes of tangent lines, to find maximum and minimum factors, and to clear up optimization issues in a huge variety of packages.
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Using the formula d = r t , which of the following statements is not true?
If r = 5 and t = 3, then d = 15.
If r = 3 and t = 5, then d = 8.
If r = 3 and t = 4, then d = 12.
If r = 4 and t = 2, then d = 8.
Answer:
The second one
Step-by-step explanation:
If d = rt
Then:
8 is not equal to 3X5
Because 3X5 = 15
Answer:
B. If r = 3 and t = 5, then d = 8.
Step-by-step explanation:
This answer is the only one that is using addition instead of multiplication, like it is supposed to.
Hope I was able to help you!
Lucy is going to walk in a fundraising event to raise money for her school band. Her mother has agreed to donate $7.50 to the school for each mile that Lucy walks, plus an additional $25.
What equation represents y, the total amount of money Lucy's mother will donate if Lucy walks x miles during the event?
Answer: y = $7.50x + $25
Step-by-step explanation:
From the question, we are informed that Lucy is going to walk in a fundraising event to raise money for her school band and her mother has agreed to donate $7.50 to the school for each mile that Lucy walks, plus an additional $25.
The equation that represents y, the total amount of money Lucy's mother will donate if Lucy walks x miles during the event will be:
= ($.750 × x) + $25
y = $7.50x + $25
Since Lucy walks x Mike's, we multiply x by $7.50 and then add the answer to the additional $25 which is the answer gotten above.
PLEASE HELP ME ASAP
What is the answer to this? how do you solve it?
Answer: 18300/29
Step-by-step explanation:
*WILL GIVE BRAIONLIEST FOR BEST ANSWER NO VIRUS LINKS OR I WILL REPORT* Given the data set, calculate the range and the mode:
{9, 3, 1, 8, 3, 6}
Question 8 options:
A, Range: 8, Mode: 3
B. Range: 3, Mode: 8
C, Range: 6, Mode: 3
D. Range: 8, Mode: 1
Answer:
the answer is A
Step-by-step explanation:
first, you would have to figure out the range, which would be 8 because to find the range, you have to get the larger number and the smaller number and subtract. So that answer would be 9-1=8 so range-1
To find the mode you will have to look at the list of numbers and see which one occurs that most and that would be the mode. Therefore, the range is 8, and the mode is 3.
Answer- range1, mode:3
Help asap pleaseee answere it separately
Answer:
179 divided by 5 equals 35 with a remainder of 4.
Quotient: 35
Remainder: 4
-3/5 and -5/8 as decimals
Answer:
-3/5 = -0.6
-5/8 = -0.625
Step-by-step explanation:
I most definitely did not use a calculator.
Which equation matches the table?
An equation that matches the table include the following: y = x + 5.
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
m represent the slope.x and y represent the points.First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (6 - 5)/(1 - 0)
Slope (m) = 1/1
Slope (m) = 1.
At data point (0, 5) and a slope of 1/, a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 5 = 1(x - 0)
y - 5 = x
y = x + 5
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Solve + 8 = 12.
a =
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
Answer:
4
Step-by-step explanation:
Question is in image below.
Answer:
√99, 9.8 repeating, π2
Step-by-step explanation:
hope this helped!
Find the area of each polygon
Answer:
1. 66 ft²
2. 102 cm²
3. 35 in.²
4. 7.36 in.²
5. 60 in.²
6. 91 m²
7. 48 m²
5. 567 mm²
9. 255 m²
10. The side length of the square is 9 cm
The area of the square is 81 cm²
Step-by-step explanation:
1. The area of the parallelogram = 11 × 6 = 66 ft²
2. The area of the triangle = 1/2×12×17 = 102 cm²
3. The area of the trapezium = 1/2×(5 + 9)×5 = 35 in.²
4. The area of the triangle = 1/2×4.6×3.2 = 7.36 in.²
5. The area of the parallelogram = 10 × 6 = 60 in.²
6. The area of the trapezium = 1/2×(15 + 11)×7 = 91 m²
7. The area of the parallelogram = 8 × 6 = 48 m²
5. The area of the trapezium = 1/2×(27 + 36)×18 = 567 mm²
9. The height of the wall = 17 m - 8 m = 15 m
The area = 17 × 15 = 255 m²
10. The dimensions of a square with perimeter = 36 cm are;
Side length = 36/4 = 9 cm
The area of the square = 9 × 9 = 81 cm².
a circle of radius $2$ has center at $(2,0)$. a circle of radius $1$ has center at $(5,0)$. a line is tangent to the two circles at points in the first quadrant. what is the $y$-intercept of the line?
The y-intercept of the line is -4.
The circles have centers at (2,0) and (5,0) with radii 2 and 1, respectively. The tangent line touches the circles at points in the first quadrant. Let the tangent points be A and B for the circles with radii 2 and 1, respectively.
Since the tangent line touches the circles at points A and B, the radii connecting the centers to these points are perpendicular to the tangent line. Thus, the triangle formed by the centers of the two circles and the tangent points is a right triangle with the right angle at point A.
Let C be the intersection of the tangent line and the y-axis (y-intercept). The slope of line AC is (0 - 2) / (2 - 0) = -1. Since line AC is perpendicular to the tangent line, the slope of the tangent line is the negative reciprocal of -1, which is 1.
Now we can use the point-slope form of a line, y - y1 = m(x - x1), using point B (5,1) as (x1, y1) and m = 1 (slope). So, y - 1 = 1(x - 5). Simplifying, we get y = x - 4.
The y-intercept occurs when x = 0, so plugging in x = 0, we have y = 0 - 4 = -4.
Therefore, the y-intercept of the line is -4.
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The y-intercept of the line that is tangent to two circles with centers at points (2,0) and (5,0) and with radii of 2 and 1 respectively is approximately 4.6.
Explanation:
The line tangent to both circles will form a right triangle with the centers of the two circles. The distance between the centers of the two circles (i.e., the base of the triangle) is 3 units (from point (2,0) to point (5,0)).
We know that the hypotenuse of this right triangle is the radius of the larger circle plus the radius of the smaller circle, i.e., 3 units. So, our right triangle has both base and the hypotenuse equal to 3 units making it a equilateral triangle. Therefore, the height/altitude of the triangle equals to √(3² - 1.5²) = √(9 - 2.25) = √6.75 ≈ 2.6.Since the tangent point in the first quadrant of the circle of radius 2 is 2 units above the x-axis, the y-intercept of the tangent line is (2+2.6)=4.6.
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PLEASE HELP!! I beg of yall
All three questions have the same triangle which is used in the first photo attached!
I'm supposed to match the Trig function with the correct ratio.
Answer:
Tan R= Tan P
Step-by-step explanation:
Use at least 5 decimals in your calculations in this question. A pharmaceutical company has developed a new flu vaccine. However, In the clinic, there have been cases of stroke in elderly patients after vaccination. Therefore, the pharmaceutical company conducted a large-scale experiment to verify whether vaccination would increase the risk of stroke. The company invited many elderly volunteers and randomly divided them into two groups. The first group of volunteers received the real vaccine, while the other group of volunteers received a placebo, The first group of volunteers has 2.000 people. In the year after vaccination, 220 of them had a stroke. There were 1.500 people in the placebo group. and within one year after vaccination, 130 people had a stroke. Denote the population proportion of people who will experience a stroke in the year after vaccination as px. and the population proportion of people who will experience a stroke in the year without vaccination as py. 1. Calculate the 90% confidence interval for PX X
−pp. Be sure to include the sample statistic and sampling distribution on which the confidence interval is based and the reason why the sampling distribution is valid in this problem, as well as the confidence interval. 2. Use the rejection region approach to test the null hypothesis that the probability of having a stroke is the same for two populations against the aiternative hypothesis that is not, at the 10% level of significance. Be sure to include the sample statistic and sampling distribution on which the rejection region is based and the reason why the sampling distribution is valid in this problem, as part of your answer. Explain how you reach a conclusion, as well as stating the conclusion. 3. Based on the above hypothesis, calculate the p-value. 4. Use the p-value to test the null hypothesis that the probability of having a stroke for the people who received the vaccine is less or equal to the probability of those who did not against the alternative hypothesis that the probability for the people who received the vaccine is greater than the probability of those who did not, at the 18 level of significance. 5. Suppose the company has the option of increasing the number of volunteers, in order to estimate the difference between the population proportions more precisely. The sizes of the two samples will be the same, ie. n X
=ny=n They want the length of the 90% confidence interval (trom L to U) not to exceed 0.01. The length should not exceed 0.01 regardless of what the values of pX,Py turn out to be in our samples. Calculate the minimum necessary value of n.
1. The 90% confidence interval for the population proportion of people who will experience a stroke after vaccination is 0.0958 to 0.1242. 2. Using the rejection region approach at a 10% level of significance, we reject the null hypothesis if the standardized difference in proportions falls outside the critical values. 3. The p-value represents the strength of evidence against the null hypothesis. 4. Using the p-value at an 18% level of significance, we reject the null hypothesis if the p-value is less than 0.18. 5. Without additional information, we cannot determine the exact minimum sample size needed to achieve a 90% confidence interval with a maximum length of 0.01 for the difference in population proportions.
1. The 90% confidence interval provides a range (0.0958 to 0.1242) within which we can be 90% confident that the true population proportion of stroke cases after vaccination lies, based on the sample data of 2,000 people in the vaccine group.
2. Using the rejection region approach, if the standardized difference in proportions falls outside the critical values, we reject the null hypothesis. This indicates that there is evidence of a significant difference in the probability of stroke between the vaccine and placebo groups at a 10% level of significance.
3. The p-value measures the likelihood of observing a test statistic as extreme as the one calculated (or even more extreme) under the null hypothesis. A smaller p-value indicates stronger evidence against the null hypothesis.
4. By comparing the p-value to the significance level (0.18), we can determine whether to reject the null hypothesis. If the p-value is less than 0.18, we reject the null hypothesis, concluding that the probability of stroke for the vaccine group is greater than for the placebo group at an 18% level of significance.
5. The minimum sample size required to ensure a 90% confidence interval with a maximum length of 0.01 for the difference in population proportions depends on the estimated values of pX and pY, which are not provided. Without this information, we cannot determine the precise minimum sample size needed.
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Please help!
The graphs of f(x)=−2x and g(x)=(12)x are shown.
What are the solutions to the equation −2x=(12)x ?
Select each correct answer.
-2
-1
2
4
Answer:
-1 and -2
Step-by-step explanation:
The function 2 represented by the equation f(x) = -(x - 2)² + 5 has the larger maximum.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
The functions are given as:
Function 1
f(x) = -(x - 4)² + 1
Function 2:
f(x) = -(x - 2)² + 5
A quadratic function is represented as a (x - h)² + k, when a is negative then, the vertex of the function is a maximum. In both functions, the value of a is -1. This means that both functions are at a maximum
The values of k in both functions are k = 1 and k = 5. By comparison, 5 is greater than 1. Therefore, function 2 has larger maximum.
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complete question;
The following graph describes function 1, and the equation below it describes function 2. Determine which function has a greater maximum value, and provide the ordered pair. Function 1 graph of function f of x equals negative x squared plus 8 multiplied by x minus 15 Function 2 f(x) = −x2 + 2x − 15 Function 1 has the larger maximum at (4, 1). Function 1 has the larger maximum at (1, 4). Function 2 has the larger maximum at (−14, 1).
What would be the angle for M
Answer:
180-124-33=23
There are 4 yellow, 3 blue, 5 green, 7 red and 2 orange sweets in my bag.
3.1.1 What is the probability of taking out a red sweet? Show all your steps.
3.1.2 What is the probability of taking out a green, blue, or orange sweet? Show all your steps.
please help quick writing test
Answer:
1/3 ; 10/21
Step-by-step explanation:
total sweets = 4+3+5+7+2 = 21
3.1.1
7/21 = (7:7)/(21:7) = 1/3
3.1.2
(5+3+2)/21
10/21
Consider the exponential equation: 2^(x - 8) - 6 = 41) Convert the exponential equation into logarithmic form.A) x + 8 = log2(10)B) x + 8 = log10(2)C) x - 8 = log2(10)D) x - 8 = log10(2)2) Solve the equation for x using logarithmic form.A) x = In(2)/In(10) + 8B) x = In(10)/In(2) + 8C) x = In(2)/In(10) - 8D) x = In(10)/In(2) - 8
(a) The correct option is C
\(x-8=\log _210\)(b) The correct option is B
\(x=\frac{\log10}{\log2}+8\)Explanation:Given the expression:
\(2^{(x-8)}-6=4\)To write this in logarithmic form, we first add 6 to both sides of the equation
\(\begin{gathered} 2^{(x-8)}=4+6=10^{} \\ 2^{(x-8)}=10 \\ \text{This means} \\ x-8=\log _210 \end{gathered}\)From
\(2^{(x-8)}=10\)Take logarithm of both sides
\(\begin{gathered} \log 2^{(x-8)}=\log 10 \\ (x-8)\log 2=\log 10 \\ x-8=\frac{\log10}{\log2} \\ \\ x=\frac{\log 10}{\log 2}+8 \end{gathered}\)find the volume of the prism
Answer:
volume = 108
Step-by-step explanation:
simple: volume = base x height
9 x 12 = 108
Answer 1452
Step-by-step explanation:
im not sure if im correct but the formua is V = L x W x H which is volume equal lenth multiplied by with multiplied by height. so 12 x 11 x 11
Find the volume of the described solid of revolution or state that it does not exist. The region bounded by f(x) = (x - 1)^-1/4 and the x-axis on the interval (1, 6] is revolved about the x-axis. Set up the integral that should be used to find the volume of the solid. Use increasing limits of integration. (Type exact answers.) Find the volume or state that it does not exist. Select the correct answer and, if necessary, fill in the box to complete your choice. A. The volume is cubic units. (Type an exact answer.) B. The volume does not exist.
The correct option is A. The volume is 6.77 cubic units
The function and interval given are f(x) = (x - 1)^-1/4 and the x-axis on the interval (1, 6].
We want to find the volume of the solid of revolution when the region is rotated about the x-axis.
Let's consider the graph of the function: graph{(x-1)^(-1/4) [-10, 10, -5, 5]}
To set up the integral to find the volume of the solid of revolution, we can use the disk method.
We need to integrate the area of each disk perpendicular to the x-axis from x = 1 to x = 6.
The area of a disk is given by the formula: A = πr²
where r is the radius of the disk and is equal to f(x) in this case.
Therefore, the area of a disk is: A = πf(x)²
Let's substitute f(x) into this formula and integrate from x = 1 to x = 6 to get the volume of the solid.
We have The integral that should be used to find the volume of the solid is given as:
V = ∫₁⁶ πf(x)² dx
We substitute f(x) = (x - 1)^(-1/4) into this expression and integrate to get the volume.
We have: V = ∫₁⁶ π(x - 1)^(-1/2) dx
Let u = x - 1, so that du/dx = 1 and dx = du.
When x = 1, u = 0, and when x = 6, u = 5.
Therefore, we have: V = ∫₀⁵ πu^(-1/2) du= 2π[u^(1/2)]₀⁵= 2π(√5 - 1) ≈ 6.77 cubic units.
The volume of the solid of revolution when the region is rotated about the x-axis is approximately 6.77 cubic units.
Thus, the correct option is A. The volume is 6.77 cubic units.
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What is the nature of the rules of equation 2x² 6x 7 0?
To find the nature of the roots of the equation 2x^2 – 6x + 7 = 0, we can use the quadratic formula:
What kind of thing are quadratic equation roots?
Therefore, the real, unequal, and irrational roots of a quadratic equation.
x = (-b +/- sqrt(b^2 - 4ac)) / (2a)
where a, b, and c are the coefficients of the quadratic equation in the form ax^2 + bx + c = 0.
In this case, a = 2, b = -6, and c = 7, so we can plug these values into the formula as follows:
x = (-(-6) +/- sqrt((-6)^2 - 4(2)(7))) / (2(2))
x = (6 +/- sqrt(36 - 56)) / 4
x = (6 +/- sqrt(-20)) / 4
Since the square root of a negative number is not a real number, the roots of the equation 2x^2 – 6x + 7 = 0 are not real numbers. This means that the roots of the equation are complex numbers.
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enny had some candy to give to her three children. She first took nine pieces for herself and then evenly divided the rest among her children. Each child received three pieces. With how many pieces did she start?
Equation:
Answer:
Steps to solve:
Answer:
18
Step-by-step explanation:
if she took nine and her THREE children took three each, that means 3+3+3=9 and 9+9=18
PLS HELP ASAP 50 POINTS AND BRAINLEIST!!
Given the 4 points below, identify what shape is formed and how you found your answer.
Answer:
rectangle
Step-by-step explanation:
If you place those points on a grid, you would obtain a rectangle as the slopes are opposite reciprocals when forming lines showing perpendicular and parallel lines that are seen in a rectangle
A graduated cylinder is filled to an initial volume of 20ml. A ball is dropped into the graduated cylinder. The final volume of the graduated cylinder is 29 ml. If the has a mass of 27 g. What is the density of the ball?
Hey there! I'm happy to help!
A graduated cylinder is basically a cylinder with little measurements on it.
If we drop the ball into the cylinder and the final volume in 29 instead of 20, this means that the ball has a volume of 9 mL as it took up 9mL of the water, pushing it up 9 mL.
Density is mass divided by volume. The ball has a mass of 27 g and a volume of 9mL. So, the density is 3 g/mL.
Have a wonderful day! :D