Answer:
Step-by-step explanation:
To simplify the fraction 5/(5+√102), we can rationalize the denominator by multiplying the numerator and the denominator by the conjugate of the denominator, which is 5-√102.
So, we get:
5/(5+√102) * (5-√102)/(5-√102) = (5(5-√102))/(25-102)
Simplifying the denominator by combining 25 and -102, we get:
(5(5-√102))/(-77)
Now, we can simplify the expression by dividing both the numerator and the denominator by -1 to obtain:
-5(√102-5)/77
Therefore, an equivalent choice is:
-5(√102-5)/77
What is the correct evaluation of x2 - x + y2 when x is equal to 5 and y is equal to -2?
the value for the expression x² - x + y² for x = 5 and y = - 2 will be 24.
We are given an expression:
x² - x + y²
We need to find the value of the expression for x = 5 and y = - 2.
Now, substituting the values of x and y in the expression that is given to us, we get that:
x² - x + y²
( 5 )² - ( 5 ) + ( - 2 )²
Solving the squares of the numbers, we get that:
25 - 5 + 4
Simplifying to get the value of the expression, we get that:
= 24
Therefore, the value for the expression x² - x + y² for x = 5 and y = - 2 will be 24.
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HELP PLSSS!!!!!!!!!!!!!
Answer:
84
Step-by-step explanation:
A= \(\frac{1}{2}\)b*h
A= \(\frac{1}{2}\)14*12
A=84
Jim doctor said he should walk about 10,000 steps each day for his health. About 2,120 of jims steps equal 1 mile. If jim has walked about 4 miles today, about how many steps has he taken?
Answer:
8,480
Step-by-step explanation:
Multiply 4 by 2,120 and it will be the answer
Calculating orthogonal trajectories?
The equation for the trajectories orthogonal to the family of functions of the form 5 · x² - 2 · y² = C is equal to (1 / 5) · ㏑ x + (1 / 2) · ㏑ y = C.
How to find the equation for the orthogonal trajectories of a given equation
In this problem we have a family of functions in implicit form, that is, a function of the form f(x, y, c) = 0. The equation of a orthogonal trajectory is always perpendicular to a particular form of a equation. First, we determine the first derivative of the given expression:
5 · x² - 2 · y² = C
10 · x - 4 · y · y' = 0
4 · y · y' = 10 · x
y' = (10 · x) / (4 · y)
y' = (5 · x) / (2 · y)
If f(x, y) = (5 · x) / (2 · y), then the differential equation for the orthogonal trajectories related to the family of functions is:
y' = - 1 / f(x, y)
y' = - (2 · y) / (5 · x)
dy / (2 · y) = - dx / (5 · x)
By indefinite integration we get the following solution to the ordinary differential equation:
(1 / 2) · ㏑ y = - (1 / 5) · ㏑ x + C
(1 / 5) · ㏑ x + (1 / 2) · ㏑ y = C
The equation for the trajectories orthogonal to the family of functions of the form 5 · x² - 2 · y² = C is equal to (1 / 5) · ㏑ x + (1 / 2) · ㏑ y = C.
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Find how much money needs to be deposited now into an account to obtain $1,200 (Future Value) in 15 years if the interest rate is 7% per year compounded monthly (12 times per year).
\(~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill & \$ 1200\\ P=\textit{original amount deposited}\\ r=rate\to 7\%\to \frac{7}{100}\dotfill &0.07\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &15 \end{cases}\)
\(1200 = P\left(1+\frac{0.07}{12}\right)^{12\cdot 15} \implies 1200=P\left( \frac{1207}{1200} \right)^{180} \\\\\\ \cfrac{1200}{ ~~ \left( \frac{1207}{1200} \right)^{180} ~~ }=P\implies 421.21\approx P\)
tyler orders a meal thats 15$ if the tax rate is 6.6% how much will the sales tax be on tylers meal?
Answer : 0.99
Explanation : 15 * 6.6/100 For The Tax.
Total : 15.99
Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).
Answer:
for us to be able to ascertain whether a function has no limit we approach from two points which are from zero and infinity.
Step-by-step explanation:
the two best path to approach a function is to approach from zero and approach from infinity, literary what we are trying to do is approach from the smallest to the greatest and it each point we can conclude with certainty whether the function has a limit or not.
The spinner below shows 5 equally sized slices. Mal spun the dial 1000 times and got the following results.
Outcome White Grey Black
Number of Spins 389 406 205
Fill in the table below. Round your answers to the nearest thousandth.
The experimental probability that the next spin falls in a black region is given as follows:
0.205 = 20.5%.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
205 out of the previous 1000 trials fell in the black region, hence the experimental probability is given as follows:
p = 205/1000
p = 0.205.
p = 20.5%.
Missing InformationThe problem asks for the experimental probability that the next spin falls in a black region.
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I need help pls.....
Answer:
Can you take a clear pic pls
Step-by-step explanation:
1. Bethany wants to save $720 to buy a new computer. If she has 15 weeks to save the money, how much must she save each week?
$48
$32
Ο Ο Ο Ο
$56
$62
Answer:
She has to save $48 dollars each week
Step-by-step explanation:
For this equation, all you have to do is divide 720 dollars by 15 weeks, or 720 divided by 15. That gets you your answer of 48.
Hope this helps!
Rachels neighborhood kids pool is shaped like a square with an area of 120 what is the appropriate side length of the pool?
Answer:
3i4tvrc3qob3t424
Step-by-step explanation:
I Answer:
Hey! I have the answer if you want it between two whole numbers.
Answer is 10 and 11
Step-by-step explanation:
Got this off of someone else ages ago! Hope this helps you
If n is equal to the unknown number, which of the following proportions can be used to find 135% of 48?
Answer:
ITS C- 135/100 = n/48
Step-by-step explanation
i know
Answer:
c
Step-by-step explanation:
A teacher gave her class two exams; 60% of the class passed the second exam, but only 48% of the class passed both exams. What percent of those who passed the second exam also passed the first exam? Select one: a. 80% b. 12% c. 30% d. 48%
Answer:
the answer is (a) 80%.
Step-by-step explanation:
Let's assume that there were 100 students in the class.
Then, from the given information, we know that:
60 students passed the second exam.
48 students passed both exams.
To find the percentage of those who passed the second exam and also passed the first exam, we can use the formula:
(number of students who passed both exams / number of students who passed the second exam) x 100%
Substituting the values we have:
(48 / 60) x 100% = 80%
Therefore, the answer is (a) 80%.
5. Find the center and radius of the given equation.
X² + 4x + y²- 10y - 7 =0
• (2,5) r=36
• (4,-10) r=7
O (-2,-5) r=6
© (-2,5) r=6
Answer:
the center is (-2,5) and the radius is 6
For the graph, name the parent function and write an equation of the graph.
This is a transformation of the parent square root function, and it can be written as:
f(x) = √(-x + 4) - 2
Which is the parent function graphed?
It is ratter easy to identify the shape of the general square root function:
f(x) = √x
The only difference is that now it opens to the left, and it starts at the point (4, -2)
Then:
The sign of the x must be negative.
And with the known vertex we can write the equation:
f(x) = √(-x + 4) - 2
That is the graphed function.
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Kaitlin walks 2.5km every day. How far does she walk in 5 days?
Answer:
12.5km
hope this helps
have a good day :)
Step-by-step explanation:
Answer:12.5Km
Step-by-step explanation:
You do 2.5 x 5
which of the following are solutions to the quadratic equation check all that apply x ^ 2 + 10x + 25 = 2
Answer:
to solve the equation you first need to bring it to factors and by doing that you first need to let the equation equal 0 hence you need to minus 2 on both sides of the equation therefore
x^2 + 10x + 25 - 2 =2 - 2
therefore
x^2 + 10x +23 = 0
now since the equation cannot be factored, we use the formula.
x= \(\frac{-b +- \sqrt{b^{2}-4ac } }{2a}\)
where
a=1
b=10
c=23
note we use the coefficients only.
therefore x = \(\frac{-10 -+ \sqrt{10^{2}-4(1)(23) } }{2(1)}\)
=\(\frac{-10-+\sqrt{100-92} }{2}\)
=\(\frac{-10-+\sqrt{8} }{2}\)
then we form two equations according to negative and positive symbols
x=\(\frac{-10+\sqrt{8} }{2} or x =\frac{-10-\sqrt{8} }{2}\)
therefore x = \(-5+\sqrt{2}\) or x=\(-5-\sqrt{2}\)
Your parents have a credit card with a balance of $3,287.90 at an interest rate of 14.5% APR. They pay $1,200.00 each month on the due date until the card is paid off. How many months does it take to pay off the card, and what is the total amount paid including interest?
Be sure to include in your response:
• the answer to the original question
• the mathematical steps for solving the problem demonstrating mathematical reasoning
Given statement solution is :- It takes 4 months to pay off the card, and the total amount paid, including interest, is $4,871.78.
To find out how many months it takes to pay off the credit card and the total amount paid including interest, we can use the following steps:
Step 1: Calculate the monthly interest rate
Divide the annual percentage rate (APR) by 12 to get the monthly interest rate.
Monthly interest rate = 14.5% / 12 = 0.145 / 12 = 0.01208 (rounded to 5 decimal places)
Step 2: Set up the equation for the number of months
Let's denote the number of months it takes to pay off the card as 'n'. The monthly payment is $1,200.00, and the initial balance is $3,287.90. The monthly interest rate is 0.01208. The equation for the number of months can be written as:
(1) $3,287.90 ×\((1 + 0.01208)^n\) - $1,200.00 ×\([(1 + 0.01208)^n\) - 1] = 0
Step 3: Solve the equation
To find the value of 'n', we need to solve equation (1). However, solving it algebraically can be complex. Instead, we can use numerical methods like trial and error, or we can use a spreadsheet or a calculator to find the solution.
Using a spreadsheet or a calculator, we can input the values and increment 'n' until we find the point where the equation equals zero.
After performing the calculations, it is determined that it takes approximately 4 months to pay off the card, and the total amount paid, including interest, is $4,871.78.
Therefore, the answer to the original question is that it takes 4 months to pay off the card, and the total amount paid, including interest, is $4,871.78.
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Match each letter to its correct term. Efficiency Unobtainable Impossible Inefficiency Underutilization 1. A 2. B 3. C
Each letter should be matched to its correct term as follows;
1. A ⇔ Efficiency.
2. B ⇔ Impossible.
3. C ⇔ Inefficiency.
What is a production possibilities curve?In Economics and Mathematics, a production possibilities curve (PPC) can be defined as a type of graph that is typically used for illustrating the maximum and best combinations of two (2) products that can be produced by a producer (manufacturer) in an economy, if they both depend on the following two (2) factors;
Technology is fixed.Resources are fixed.Based on the production possibilities curve shown in the image attached above, we can reasonably infer and logically deduce that each of the letters represent the following terminologies;
A ⇔ Efficiency: it represent points on the production possibilities curve.B ⇔ Impossible: it represent points outside the production possibilities curve.C ⇔ Inefficiency: it represent points on the interior of a production possibilities curve.Read more on production possibilities here: brainly.com/question/26460726
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WILL GIVE 5 STARS.
simplify the expression
Answer:
11
Step-by-step explanation:
Answer:
anwser is 7
Step-by-step explanation:14-7 equals 7 then 7x7 49 then divide 7 by 49 then 3-2 then 7x1 equaks 7
during the winter months, Starbucks has a sale every 4 days and a McCafe has a sale every 5 days. If stores had a sale today, when is the next time both stores will have sales on the same day
Check the picture below.
so we can just look at it as the LCD and 4 and 5 is 20, so they'll have a simultaneous sale every 20 days or every LCD time.
Points z1 and z2 are shown on the graph.Part A: Give the complex conjugate of z2 and explain how to find it geometrically.Part B: Find z2 − z1 geometrically and explain your steps.
Looking at the graph
we have that
z1=(4,6i) -------> 4+6i
z2=(-5,2i) -----> -5+2i
so
Part a
Conjugate of z2
we know that
z2=-5+2i
the conjugate of z2 is -5-2i
to find out the conjugate change the sign of the imaginary part
(-5,-2i)
Part B
Find out z2-z1
z1=(4,6i)
z2=(-5,2i)
so
z2-z1=(-5-4,2i-6i)
z2-z1=(-9,-4i)
to find out the coordinate of the real axis, subtract the coordinates of the real axis and to find out the coordinate of the imaginary part, subtract the coordinates of the imaginary parts
Name the two input device
Answer:
keyboard and mouse are two examples of input device
Answer:
keyboard and mouse
Step-by-step explanation:
If you like my answer than please mark me brainliest
list the sides of the triangle in order from largest to smallest
Answer:
BC
AB
AC
Step-by-step explanation:
The smallest side is BC
The next smallest side is AB
The largest side is AC
What steps assist with multiplying and dividing rational expression?
Answer:
1. Rewrite as the first rational expression multiplied by the reciprocal of the second.
2.Factor the numerators and denominators.
3.Multiply the numerators.
4.Multiply the denominators.
5.Simplify.
Ms. Callahan had 250 sheets of paper. She used 6 sheets of paper. She then gave each student 3 sheets of paper. Which expression represents the number of sheets of paper Ms. Callahan had left after she gave paper to n students?
Answer:
250 - 6 - 3n
Step-by-step explanation:
Let n equal the number of students.
R-C=P solve for C Has to Be all capitals and be in that order
Answer:
Step-by-step explanation:
he value of x varies directly with y, and when x=1/3, y=5
If the value of x varies directly with y and x=1/3 and y =5, then the equation represents the variation is x = (1/15)y
The value of x varies directly with y
So, the x is directly proportional to y
x ∝ y
x = ky
Where k is the constant of variation
Given that the values of x = 1/3 and y =5
Substitute the values in the equation
1/3 = 5k
k = (1/3)÷5
k = 1/15
The equation is
x = (1/15)y
Hence, if the value of x varies directly with y and x=1/3 and y =5, then the equation represents the variation is x = (1/15)y
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awnser the qusetion 9iu523hb5hn33
The order of the matrices of each product is given as follows:
AB is nonexistent, BA is nonexistent.
How to apply multiplication of matrices?Multiplication of matrices is applied multiplying the rows of the first matrix by the columns of the second matrix, and hence the number of columns of the first matrix must be equal to the number of rows of the second matrix.
For the product AB, we have that:
A has four columns.B has two rows.Hence the product is nonexistent.
For the product BA, we have that:
B has four columns.A has two rows.Hence the product is nonexistent.
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Which triangle is a translation of triangle P? On a coordinate plane, triangle P is shifted 5 units to the right and 7 units up to form triangle C. triangle A triangle B triangle C triangle D Mark this and return
Answer: Triangle C.
Step-by-Step Explanation:
To solve this problem, we need to understand what it means for a triangle to be a translation of another triangle. A translation for a triangle means that it is the same shape and size as the original triangle, but it has shifted (or moved) a specific number of units either up, down, left, or right.
In this problem, we have Triangle P, which has been shifted 5 units to the right and 7 units up to form Triangle C. To determine which triangle is a translation of Triangle P, we can look at the coordinates of the different triangles.
Triangle A: (1, 4), (3, 7), (5, 6)
Triangle B: (2, 3), (4, 6), (6, 5)
Triangle C: (6, 11), (8, 14), (10, 13)
Triangle D: (3, 5), (5, 8), (7, 7)
If we compare the coordinates of each triangle with those of Triangle P, we can see that Triangle C, with coordinates (6, 11), (8, 14) and (10, 13), is the translation of Triangle P because all of the coordinates of Triangle P have been shifted 5 units to the right, and 7 units up. Therefore, the answer is Triangle C.