15 /3 = 5. so each 1/5 is $5
5*5 = 25
so the game costs $25
ms johnson and ms smith were folding report cards to send home to parents. the ratio of the number of report cards ms johnson folded to the number of report cards ms smith folded is 2:3. At the end of the day , ms Johnson and ms smith folded at total of 300 report cards. How many did each person fold?
The integral represents the volume of a solid. describe the solid. π π 0 sin(x) dx
The table below shows the surface area y, in square feet, of a shrinking lake in x days:
Time (x)
(days) 5 10 15 20
Surface area (y)
(square feet) 90 85 70 61
Part A: What is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and surface area of the lake. [Choose the value of the correlation coefficient from −1, −0.98, −0.5, −0.02.] (4 points)
Part B: What is the value of the slope of the graph of surface area versus time between 15 and 20 days, and what does the slope represent? (3 points)
Part C: Does the data in the table represent correlation or causation? Explain your answer. (3 points)
Which of the following is a description of the data with a correlation coefficient of -0.3?
A.)low positive correlation
B.)low negative correlation
C.)high positive correlation
D.)high negative correlation
Alicia drove 265 miles in 5 hours What is the average rate that she traveled 49 miles per hour 51 miles per hour 53 miles per hour 55 miles per hour
25. Which is an example of an operation?
A) 12
B) 6ab
C) +
D) y
A. 15
B. 125
C. 135
D. 45
The function f(x) is represented by this table of values .Match average rate of change of f(x) with corresponding intervals
The sum of two numbers is 49 . the smaller number is 17 less than the larger number. what are the numbers?
Final answer:
To solve the student's algebra problem, we defined variables, set up an equation based on the given conditions, and then solved for the larger number. Ultimately, we found the two numbers to be 33 and 16.
Explanation:
The student asked a problem that involves finding two numbers given that their sum is 49 and the smaller number is 17 less than the larger number. To solve this problem, we will use algebra.
Let the larger number be x and the smaller number be x - 17. According to the problem, the sum of these two numbers is 49:
x + (x - 17) = 49
Combine like terms: 2x - 17 = 49
Add 17 to both sides: 2x = 66
Divide by 2: x = 33
Since the larger number is 33, the smaller number is 33 - 17, which is 16.
Therefore, the two numbers are 33 and 16.
You decide to put $150 in a savings account to save for a $3,000 down payment on a new car. If the account has an interest rate of 2.5% per year and is compounded monthly, how long does it take you to earn $3,000 without depositing any additional funds?
(I know it's 119.954 years, but I have no idea how to get that)
Answer:
It take 119.954 years to earn $ 3000 without depositing any additional funds.
Step-by-step explanation:
Given:
Principal Amount, P = $ 150
Amount, A = $ 3000
Rate of interest, R = 2.5% compounded monthly.
To find: Time, T
We use formula of Compound interest formula,
[tex]A=P(1+\frac{R}{100})^n[/tex]
Where, n is no time interest applied.
Since, It is compounded monthly.
R = 2.5/12 %
n = 12T
[tex]3000=150(1+\frac{\frac{2.5}{12}}{100})^{12T}[/tex]
[tex]\frac{3000}{150}=(1+\frac{2.5}{1200})^{12T}[/tex]
[tex]20=(1+\frac{2.5}{1200})^{12T}[/tex]
Taking log on both sides, we get
[tex]log\,20=log\,(1+\frac{2.5}{1200})^{12T}[/tex]
[tex]1.30103=12T\times\,log\,(1.002083)[/tex]
[tex]T=\frac{1.30103}{12\times\,log\,(1.002083)}[/tex]
[tex]T=119.954[/tex]
Therefore, It take 119.954 years to earn $ 3000 without depositing any additional funds
Which expression is equivalent to 34 ⋅ 3−9?
1 over 3 to the 13th power
1 over 3 to the 5th power
35
313
Answer:
b.1 over 3 to the 5th power.
Step-by-step explanation:
We are given that an expression
[tex]3^4\cdot 3^{-9}[/tex]
We have to find that which expression is equivalent to given expression
[tex]3^4\cdot 3^{-9}[/tex]
We know that [tex]a^b+a^c=a^{b+c}[/tex]
Using this identity
Then, we get [tex]3^4\cdot 3^{-9}=3^{4-9}=3^{-5}[/tex]
[tex]3^4\cdot 3^{-9}=\frac{1}{3^5}[/tex]
Using [tex]a^{-b}=\frac{1}{a^b}[/tex]
Hence, option b is true.
Answer:b.1 over 3 to the 5th power.
What is the value of S4 for
A. 5 5/64
B. 5 1/4
C. 5 5/16
D. 5 5/6
Answer: Option 'C' is correct.
Step-by-step explanation:
Since we have given that
[tex]S_n=\sum^{\infty}_{n=1}4(\dfrac{1}{4})^{n-1}[/tex]
We need to find the value of S₄.
So, it means sum of 4 terms.
Here it form a geometric series:
a = 4 = first term
r = [tex]\dfrac{1}{4}[/tex] = Common ratio
And sum of n terms whose ratio is less than 1 is given by
[tex]S_n=\dfrac{a(1-r^n)}{1-r}\\\\S_4=\dfrac{4(1-\dfrac{1}{4}^{4})}{1-\dfrac{1}{4}}\\\\S_4=\dfrac{4(1-0.25^4)}{1-0.25}\\\\S_4=\dfrac{4(1-0.0039)}{0.75}\\\\S_4=5.3125\\\\S_4=5\dfrac{5}{16}[/tex]
Hence, Option 'C' is correct.
Answer: Option 'C' is correct.
Step-by-step explanation:
How old am i if i was born in 05/22/1965?
Answer:
In 2021 you would be 56 or 55 years old
Step-by-step explanation:
2021-1965=56 or the other way you could do it 52+4 because the other person said you would be 52 in 2017 so 4 years after you would be 55 or 56
Which statement is 1?
option 5 btw is none of these
What is equivalent to xy/a - 1/b
What are the solutions of 4x4 – 4x2 = 8?
Final answer:
To find the solutions of the equation 4x^4 - 4x^2 = 8, we can rearrange the equation and solve the resulting quadratic equation. The solutions are x = ±√2.
Explanation:
To find the solutions of the equation 4x^4 - 4x^2 = 8, we can rearrange the equation to get 4x^4 - 4x^2 - 8 = 0. This is a quadratic equation in terms of x^2. We can solve this quadratic equation by factoring or by using the quadratic formula.
Factoring the equation, we get (2x^2 - 4)(2x^2 + 2) = 0. Setting each factor equal to zero, we have 2x^2 - 4 = 0 and 2x^2 + 2 = 0.
Solving each equation separately, we get x^2 = 2 and x^2 = -1. Taking the square root of both sides, we get x = ±√2 and x = ±i. Therefore, the solutions of the original equation are x = ±√2.
Find the exact length of the curve. y = 3 + 2x3/2, 0 ≤ x ≤ 1
The exact length of the curve [tex]\(y = 3 + 2x^\frac{3}{2}\)[/tex] over the interval [tex]\(0 \leq x \leq 1\)[/tex] is [tex]\(\frac{2}{27} (10\sqrt{10} - 1)\)[/tex].
To find the exact length of the curve [tex]\(y = 3 + 2x^\frac{3}{2}\)[/tex] over the interval [tex]\(0 \leq x \leq 1\)[/tex], we can use the formula for arc length of a curve:
[tex]\[ L = \int_{a}^{b} \sqrt{1 + \left(\frac{dy}{dx}\right)^2} dx \][/tex]
where a and b are the lower and upper bounds of the interval, respectively.
First, we need to find [tex]\(\frac{dy}{dx}\)[/tex], which represents the derivative of y with respect to x:
[tex]\[ \frac{dy}{dx} = \frac{d}{dx}(3 + 2x^\frac{3}{2}) = 0 + 3x^\frac{1}{2} = 3\sqrt{x} \][/tex]
Next, we substitute this derivative into the formula for arc length:
[tex]\[ L = \int_{0}^{1} \sqrt{1 + (3\sqrt{x})^2} dx = \int_{0}^{1} \sqrt{1 + 9x} dx \][/tex]
Now, we need to integrate [tex]\(\sqrt{1 + 9x}\)[/tex]L with respect to \(x\). We can do this by making a substitution. Let u = 1 + 9x, then du = 9dx and \(dx = \frac{du}{9}\). Substituting these into the integral, we get:
[tex]\[ L = \frac{1}{9} \int_{1}^{10} \sqrt{u} du \][/tex]
Now, we can integrate [tex]\(\sqrt{u}\)[/tex]:
[tex]\[ L = \frac{1}{9} \left[\frac{2}{3}u^\frac{3}{2}\right]_{1}^{10} = \frac{2}{27} \left[10^\frac{3}{2} - 1^\frac{3}{2}\right] \][/tex]
[tex]\[ L = \frac{2}{27} (10^\frac{3}{2} - 1) \][/tex]
[tex]\[ L = \frac{2}{27} (10\sqrt{10} - 1) \][/tex]
So, the exact length of the curve [tex]\(y = 3 + 2x^\frac{3}{2}\)[/tex] over the interval [tex]\(0 \leq x \leq 1\)[/tex] is [tex]\( \frac{2}{27} (10\sqrt{10} - 1) \)[/tex].
(25 points) A weather reporter in your area said that the speed of sound in air today is about one thousand one hundred feet per second. What is that speed in scientific notation?
Answer:
1.1 × 103 feet per second
Which is the graph of f(x)=2(3)^x
Answer-
The first graph represents [tex]f(x)=2(3)^x[/tex]
Solution-
The given function is,
[tex]f(x)=2(3)^x[/tex]
Putting x = 1,
[tex]f(x)=2(3)^1=2(3)=6[/tex]
So, the point (x, f(x)) i.e (1, 6) must satisfy or lie on the curve of the function.
Only in case of the first graph, the point (1, 6) lies on the curve.
Therefore, the first graph represents the function [tex]f(x)=2(3)^x[/tex] correctly.
Answer: the first answer is correct
A ladder is leaning against a wall. The top of the ladder is 9 feet above the ground. If the bottom of the ladder is moved 3 feet farther from the wall, the ladder will be lying flat on the ground, still touching the wall. How long, in feet, is the ladder?
How many equations are needed to solve for 1 unknown variable?
The statement “Angles that measure more than 90 degrees are obtuse angles” has a counterexample
Compare the functions shown below: f(x) = 4 sin (2x − π) − 1 g(x) is points and those points are (−1, 6) (0, 1) (1, −2) (2,−3) (3, −2) (4, 1) (5, 6) h(x) = (x − 2)2 + 4 Which function has the smallest minimum y-value?
the function f (x) =830(1.2)x represents the number of students enrolled at a university xyears after it was founded. each year the number of students is ----- the number the year before
Step-by-step explanation: Apex 9/25/19
Find the greatest perfect square that is factor of the number. 650
The greatest perfect square that is a factor of 650 is 25
What is Perfect Square?A perfect Square is defined as an integer multiplied by itself to generate a perfect square, which is a positive integer. Perfect squares are just numbers that are the products of integers multiplied by themselves,
What is Prime Factorization?Prime Factorization is defined as any number that may be expressed as a product of prime numbers that has been said to be prime factorized. Any integer with exactly two factors 1 and the number itself. is said to be a prime number.
Given the number is 650
To determine the greatest perfect square that is a factor of the number 650.
We need to write 650 as the product of its prime factors, which is 650.
⇒ 650 = 2×5×5×13
So the pair is 5×5 which is 5² or 25
Hence, the greatest perfect square that is a factor of 650 is 25
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There are 21 different coffee flavours at the cafe. oddly, each student in my 8 am class has a favourite flavour there. there are just enough students in the class so you can be absolutely sure that 7 students all have the same favourite. how many students are there in the class?
Write the standard form of the line that contains a y-intercept of -3 and passes through the point (3, 0). Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.
The equation of the line in standard form that has a y-intercept of -3 and passes through the point (3, 0) is y = x - 3.
Explanation:The standard form of a line can be found using the formula y = mx +b, where 'm' is the slope and 'b' is the y-intercept. The y-intercept in this problem is -3, but we need to find the slope to complete the standard form of the line. Since our line passes through the point (3,0) and (0,-3), the slope, m, can be found by using the formula (y2-y1)/(x2-x1), which gives us a slope of 1. So the equation of our line in standard form is y = x - 3.
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a scalene triangle has symmetry with respect to a line containing a median of the triangle . true or false
Answer:
False it never will
Step-by-step explanation:
Got it right on my test.
The range of a relation is
A: the output (y) values of a relation
B: the input (x) values of the relation
C: a set of points that pair input values with output values
D: x and y values written in the form (x,y)
f(x) = 16x4 – 81 = 0 Select all of the zeroes of the function.
3/2
-3/2
3/2i
-3/2i
Here we want to find all the zeros of the function f(x) = 16*x^4 - 81.
The zeros are:
x = 3/2x = -3/2x = (3/2)*ix = (-3/2)*iFirst, for a given function f(x), we define the zeros as the values of x such that:
f(x) = 0.
Then we must solve:
f(x) = 16*x^4 - 81 = 0
Solving this for x leads to:
16*x^4 = 81
x^4 = 81/16
x^2 = ±√(81/16) = 9/4
x = ±√±(9/4) = ±3/2 and ±(3/2)*i
So there are 4 zeros, and these are:
x = 3/2x = -3/2x = (3/2)*ix = (-3/2)*iWhere the two complex zeros come from evaluating the second square root on -9/4.
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