Answer:
15 hours
Explanation:
400 km= 10 hours
1 km= 0.025 hours
600km= 15 hours
Hope it helps ;) Please let me know if its correct...
What is the percent of decrease from 56.5 to 24.8?
Answer: 43.89%
Step-by-step explanation: 24.8/56.5
What is the volume of this figure? Enter your answer in the box. cm³ A right rectangular prism with a trapezoidal prism. The rectangular prism has a length of 12 centimeters, a width of 10 centimeters, and a height of 80 centimeters. The trapezoidal prism shares a face with the rectangular prism. The trapezoid base has lengths of 22 centimeters and 12 centimeters and a height of 10 centimeters. The height of the trapezoidal prism is 80 centimeters.
Answer: 16.25 cubic cm
Step-by-step explanation:
The volume of a prism is found using V = l*w*h. Here l = 1.25, w = 4 and h = 3.25. Substitute and simplify.
V = 1.25(4)(3.25)
V = 16.25
Answer:
23200
Step-by-step explanation: I took the test
A group of students formed a circle during a game. The circumference of the circle was about 56.12 feet, and the diameter was 12 feet. Which expression best represents the value of pi
Answer:
pi= 56.12/12
if you know, you know
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Let f(x) = x2 − 2x + 1. Find the inverse function of f by identifying an appropriate restriction of its domain.
Answer: \(f^{-1} (x) = \sqrt{x} +1\)
Step-by-step explanation:
\(y = x^2 - 2x + 1\)
We know straight away the inverse will be a square root function. We also know that this inverse will have a restriction on the domain, (because you can only take the square root of a positive number).
So, to find the inverse, first we'll switch the x and y and solve for y:
\(x = y^2 - 2y +1\)
\(x = (y-1)^2\), (factor!)
±\(\sqrt{x} = y - 1\)
So, the inverse "function" is:
\(f^-1(x)\) = ±\(\sqrt{x} +1\)
But theres an issue here!
If we tried graphing this, this "function" would not pass the vertical line test, so its not really a function at all!
We need to restrict the domain to only include the values that are above the x axis.
So our final inverse function is:
\(f^{-1} (x) = \sqrt{x} +1\)
The distance around a triangle is 40 centimeters. If two sides are equal and the length of the third side is 10 centimeters, what is the length of each of the other two sides?
Answer:
15 centimeters each = the two other sides of the triangle is 30 cm.
Step-by-step explanation:
Derivative/Derivada
1) In(2x²-x)
The derivative is f'(x) = (4x - 1) / (2x² - x).
To find the derivative of the function f(x) = ln(2x² - x), we can use the chain rule.
Begin by identifying the function to be differentiated, which is f(x) = ln(2x² - x).
Apply the chain rule, which states that if we have a composition of functions, f(g(x)), the derivative is given by (f'(g(x))) g'(x).
Let's consider the inner function g(x) = 2x² - x.
To differentiate g(x), we need to apply the power rule and the constant rule. The derivative of 2x² is 4x, and the derivative of -x is -1.
Now, we differentiate the outer function f'(g(x)). The derivative of ln(x) is 1/x.
Finally, we multiply the derivatives obtained in steps 3 and 4. Thus, the derivative of f(x) = ln(2x² - x) is:
f'(x) = (1 / (2x² - x)) * (4x - 1)
Simplifying further, we have:
f'(x) = (4x - 1) / (2x² - x)
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ANSWR ASAP ILL GIVE BRAINLYEST AND 5 STAR
The missing steps of the expression are as follows;
\((\frac{9 + 4 }{0.25} ) - 10.4\) ÷452 - 10.4 ÷ 4How to solve an expression?The expression can be solved as follows:
step 1
\((\frac{3^{2} + 4 }{|-0.25|} ) - 10.4\) ÷ 4
Step 2
The absolute value will remove the minus sign of the denominator.
\((\frac{3^{2} + 4 }{0.25} ) - 10.4\) ÷ 4
Step 3
We have to find the square of the 3 in the numerator. Therefore, the step 3 will be as follows:
\((\frac{9 + 4 }{0.25} ) - 10.4\) ÷ 4
Step 4
We have simplify the numerator.
\((\frac{13 }{0.25} ) - 10.4\) ÷ 4
Step 5
52 - 10.4 ÷ 4
Step 6
Using PEMDAS rule, we have to solve the division sign. Therefore, the step 6 is as follows;
52 - 2.6
Step 7
49.4
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One lap around the track at Kathleen’s school is 0.4 kilometer. If Kathleen ran 3.5 laps, how many kilometers did she run?
Answer:
Kathleen ran 2 3/16miles
Answer:
The correct answer is option B
Rearranging formulas solving for G Q=p/1-G
We want to find a formula for G.
First step: multiply both sides by (1-G)
\(\begin{gathered} (1-G)Q=(1-G)\frac{p}{1-G} \\ (1-G)Q=p \end{gathered}\)Second step: divide both sides by Q
\(\begin{gathered} \frac{(1-G)Q}{Q}=\frac{p}{Q} \\ 1-G=\frac{p}{Q} \end{gathered}\)Third step: subtract 1 from both sides
\(\begin{gathered} 1-G-1=\frac{p}{Q}-1 \\ -G=\frac{p}{Q}-1 \end{gathered}\)Final step: multiply both sides by -1
\(\begin{gathered} (-1)\cdot(-G)=(-1)\cdot(\frac{p}{Q}-1) \\ G=1-\frac{p}{Q} \end{gathered}\)A survey was carried out to find the favorite beverage of a particular telemarketing company having 2,000 employees. To carry out this survey, two groups of 100 employees each were randomly selected and asked to vote for their favorite beverage. The results obtained are given in the table shown below.
Beverage Group A Group B
Coffee 42 44
Green Tea 9 11
Soft Drinks 28 22
Energy Drinks 21 23
Which of the following statements about the data above is true?
According to the information in the table, the correct options are: The estimated number of employees who would have voted for coffee is higher when based on the results of Group B rather than Group A. (option B).
How to identify the correct sentence?To identify the correct option that matches the information in the survey table, we must read each of the options and compare it with the information in the table to establish one as true.
Based on the above, we can infer that the correct option is option B because the number of employees who voted for coffee in group B is greater than the number of employees who voted for coffee in group A.
Note: This question is incomplete because there is some information missing. Here is the complete information:
Options:
A. The estimated number of employees who would have voted for green tea is higher when based on the results of Group A rather than Group B.
B. The estimated number of employees who would have voted for coffee is higher when based on the results of Group B rather than Group A.
C. The estimates for both groups show an equal number of employees would have voted for coffee.
D. The estimated number of employees who would have voted for coffee is higher when based on the results of Group A rather than Group B.
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Is 1 a nonreal complex, pure imaginary, or real number?
Can please someone do this❗️
Answer:
7 is 50 , 8 is84, 9 is 45, 10 is 135, 11 is 155 and 12 is 80
Step-by-step explanation:
Marko drovev75mile in 1 1/2 hours .how many mile can he he drive in 1 hour
Answer: 50 miles
Step-by-step explanation:
75 miles in one and half hours.
That's 25 miles per half hour
So, in 1 hour, he will drive 50 miles
Let Q be an orthogonal matrix with an eigenvalue λ1=1. Let x be an eighenvector beloinging to λ1. Show that x is also an eigenvector of QT
If Q is an orthogonal matrix with an eigenvalue λ1 = 1, then x, the eigenvector corresponding to λ1, is also an eigenvector of QT with an eigenvalue λ2 = λ1 * (QT * x).
To show that x is also an eigenvector of QT, we need to demonstrate that QT * x is a scalar multiple of x.
Given that Q is an orthogonal matrix, we know that QT * Q = I, where I is the identity matrix. This implies that Q * QT = I as well.
Let's denote x as the eigenvector corresponding to the eigenvalue λ1 This means that Q * x = λ1 * x.
Now, let's consider QT * x. We can multiply both sides of the equation Q * x = λ1 * x by QT:
QT * (Q * x) = QT * (λ1 * x)
Applying the associative property of matrix multiplication, we have:
(QT * Q) * x = λ1 * (QT * x)
Using the fact that Q * QT = I, we can simplify further:
I * x = λ1 * (QT * x)
Since I * x equals x, we have:
x = λ1 * (QT * x)
Now, notice that λ1 * (QT * x) is a scalar multiple of x, where the scalar is λ1. Therefore, we can rewrite the equation as:
x = λ2 * x
where λ2 = λ1 * (QT * x).
This shows that x is indeed an eigenvector of QT, with the eigenvalue λ2 = λ1 * (QT * x).
In conclusion, if Q is an orthogonal matrix with an eigenvalue λ1 = 1, then x, the eigenvector corresponding to λ1, is also an eigenvector of QT with an eigenvalue λ2 = λ1 * (QT * x).
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Please answer ASAP I will brainlist
Answer:
log(3x⁹y⁴) = log 3 + 9 log x + 4 log y
Answer:
\(\log 3+ 9\log x +4 \log y\)
Step-by-step explanation:
Given logarithmic expression:
\(\log 3x^9y^4\)
\(\textsf{Apply the log product law:} \quad \log_axy=\log_ax + \log_ay\)
\(\log 3+\log x^9 +\log y^4\)
\(\textsf{Apply the log power law:} \quad \log_ax^n=n\log_ax\)
\(\log 3+ 9\log x +4 \log y\)
giving brainliest !!!
Rs 600 will gave Rs 90 simple interest at 5 % per annum.
Step-by-step explanation:
interest=90
principal=600
rate=5%
time = I × 100/p×r
= 90×100/600×5
= 3 years.
the diffrence of 54 and 32 mutlipted by the diffrence of 8 and 5
Answer:
66
Step-by-step explanation:
the difference of 54 and 32 is 54 - 32 = 22
the difference of 8 and 5 is 8 - 5 = 3
then
22 × 3 = 66
PLEASE HELP ME ITS DUE TODAY!!!
4. RSTU is a trapezoid because the opposite sides RS and UT are parallel.
5. RSTU is not an isosceles trapezoid because the diagonals are not congruent.
How to verify that RSTU is a trapezoid?In order to verify that RSTU is a trapezoid, we would have to determine slope of the pair of opposite sides and check whether at least one pair of opposite sides are parallel;
RU ║ ST
Slope of side RU = Slope of side ST
Slope of RU = (y₂ - y₁)/(x₂ - x₁)
Slope of RU = (1 + 3)/(5 + 3)
Slope of RU = 4/8
Slope of RU = 0.5.
Slope of RS = (y₂ - y₁)/(x₂ - x₁)
Slope of RS = (-9 + 3)/(-4 + 3)
Slope of RS = -6/-1
Slope of RS = 6.
Slope of ST = (y₂ - y₁)/(x₂ - x₁)
Slope of ST = (-2 - 1)/(10 - 5)
Slope of ST = -3/5
Slope of ST = -0.6.
Slope of UT = (y₂ - y₁)/(x₂ - x₁)
Slope of UT = (-2 + 9)/(10 + 4)
Slope of UT = 7/14
Slope of UT = 0.5.
Therefore, RSTU is a trapezoid because the opposite sides RS and UT are parallel.
Question 5.
In order to determine whether RSTU is an isosceles trapezoid, we would have to determine length of the diagonals by using the distance formula and check whether they are congruent;
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Distance RT = √[(-2 + 3)² + (10 + 3)²]
Distance RT = √170 units.
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Distance US = √[(5 + 4)² + (1 + 9)²]
Distance US = √181 units.
Therefore, RSTU is not an isosceles trapezoid because the diagonals RT and US are not congruent.
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Pls Help..... 50 points and brainliest if you answer correctly!
Answer:
5
Step-by-step explanation:
The left side is equal to:
x/(2.52-2.02) = x/0.5 = 2x
Let's simplify the numerator of the right side.
9*(31/20 - 1.05) = 9*(0.5) = 9/2
The denominator is 43/40 - 35/8 /7 = 43/40 - 5/8 = 43/40 - 25/40 = 18/40 = 9/20.
So 2x = (9/2)/(9/20) = 10
x = 5
Answer:
x=-2835/62 or (in decimal form) 45.726
Step-by-step explanation:
Hope this helps!
Brain-List?
You have $300,000 saved for retirement. Your account earns 4% interest. How much will you be able to pull out each month, if you want to be able to take withdrawals for 15 years?
You will be able to pull out approximately $1,983.45 each month from your retirement savings if you want to be able to take withdrawals for 15 years.
What is interest rate?Interest rate is the percentage of the principal amount (a loan or an investment) that is charged or paid over a certain period of time, usually a year. It is used to calculate the amount of interest that accrues on the principal amount.
According to question:To calculate the monthly withdrawal amount that you can make from your retirement savings, we can use the present value of an annuity formula. This formula relates the present value of a series of equal periodic payments to the interest rate, the number of periods, and the payment amount.
Let's assume that you want to make monthly withdrawals for 15 years, which corresponds to 180 months. Also, let's assume that you want to withdraw the same amount each month. We can call this amount "P".
Using the present value of an annuity formula, we can solve for P:
P = PV * (r / (1 - \((1 + r)^(-n)\)))
where PV is the present value of your retirement savings,
r is the monthly interest rate (which is 4% / 12 = 0.00333), and
n is the number of months over which you want to make withdrawals (which is 180 in this case).
Substituting the given values, we get:
P = 300,000 * (0.00333 / (1 - (1 + \(0.00333)^(-180)\)))
≈ $1,983.45
Therefore, you will be able to pull out approximately $1,983.45 each month from your retirement savings if you want to be able to take withdrawals for 15 years. Note that this amount is an estimate and does not take into account any taxes, fees, or other factors that may affect your retirement income.
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How to subtract fraction and a whole number? Please explain step by step
Answer:
There are two main ways to go about it: you can either convert the whole number into a fraction, or subtract 1 from that whole number and convert the 1 into a fraction with the same base as the fraction you're subtracting from it. Once you have two fractions with the same base, you can start to subtract. Both methods will help you.
Step-by-step explanation:
Simplify: −3 • −26
A. −78
B. −68
C. 68
D. 78
Y=(x-3)^2+3
vertex form to standard form
Answer:
y = x² -6x +12
Step-by-step explanation:
You want the quadratic equation Y=(x-3)^2+3 written in standard form.
Standard formDepending on where you go to school, the given equation may already be in standard form.
Other places, standard form means the equation is simplified and terms are written in order of decreasing degree.
y = (x -3)² +3 = (x² -6x +9) +3
y = x² -6x +12
Si al 15% del 20% de 5N le agregamos el 30% del 50% de 2N obtenemos 270. Calcula N.
The value of N in the algebraic equation is 600.
How to calculate N in the algebraic equation?An algebraic equation is when two expressions are set equal to each other, and at least one variable is included.
If to 15% of 20% of 5N we add 30% of 50% of 2N we get 270. We have:
(15/100 * 20/100 * 5N) + (30/100 * 50/100 * 2N) = 270
0.15N + 0.3N = 270
0.45N = 270
N = 270/0.45
N = 600
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Question in English
If to 15% of 20% of 5N we add 30% of 50% of 2N we get 270. Calculate N.
Given the diagram below, if CD = x + 4,
DE = 2x + 7, and CE = 7x-25, what is the value
of x?
The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys participated?
Responses
A 3535
B 4949
C 3030
D 28
Answer: 28
Step-by-step explanation: the other responses seem too much and do you know if the girls are 7 and the boys are 5?
I WILL GIVE BRAINLIEST ANSWER CORRECTLY
Identify the segment bisector of $\overline{XY}$ .
A line segment, X Y with its midpoint M is shown. A line, n passes through segment X Y at point M. The length of X M is labeled 5 x plus 8. The length of M Y is labeled 9 x plus 12. There is a tick mark on segment X M and on segment M Y.
$\overline{XM}$
line segment cap x cap m
$X$
cap x
line $n$
line n
$\overline{YM}$
line segment cap y cap m
Question 2
The length of $\overline{XY}$ is
.
Answer:
the segment bisector should be the line n
the length of XY= 6
Step-by-step explanation:
since segment, XY is bisected, we know that each side is equal to the other
so in order to find the length of the segment, you need to set each side equal to the other
5x+8=9x+12
8=4x+12
-4=4x
x=-1
then, you plug -1 into both functions
5(-1)+8=3
9(-1)+12=3
then simply add these two numbers together to get 3+3=6
Help please
At the beginning of spring, Kaylee planted a small sunflower in her backyard.
When it was first planted, the sunflower was 15 inches tall. The sunflower
then began to grow at a rate of 1 inch per week. How tall would the sunflower
be after 4 weeks? How tall would the sunflower be after w weeks?
Answer:
19
Step-by-step explanation:
1 x 4 = 4
15 + 4 = 19
Try this out, hope it helps!
Answer:
equation for how tall sunflower would be after 'w' weeks: y = 15 + w
Step-by-step explanation:
Write the equation of a line that is parallel to y = 1/2 x + 5
that passes through the point (2,6).
Answer:
y = 1/2x + 5
Step-by-step explanation:
Slope-Intercept Form: y = mx + b
When 2 lines are parallel, they have the same slope.
Step 1: Define variables
Random point (2, 6)
m = 1/2
y = 1/2x + b
Step 2: Find b
6 = 1/2(2) + b
6 = 1 + b
5 = b
Step 3: Rewrite parallel linear equation
y = 1/2x + 5