Answer:
14x-55
Step-by-step explanation:
(6x+8x)+(-5-50)
Answer: 14x - 55
Step-by-step explanation:
Combine like terms
6x+8x=14x
-5+-50=-55
So the answer would be 14x-55
What number must you add to complete the square?2++ 24x = 50Answer here
we have
x^2+24x=50
complete the square
(x^2+24x+12^2-12^2)=50
x^2+24x+144=50+144
(x+12)^2=194
therefore
you must add 144 both sidesTommaso and Pietro have each been given 1500 euro to save for college. a. [3 marks] Pietro invests his money in an account that pays a nominal annual interest rate of 2.75%, compounded half-yearly. Calculate the amount Pietro will have in his account after 5 years. Give your answer correct to 2 decimal places. b. [3 marks] Tommaso wants to invest his money in an account such that his investment will increase to 1.5 times the initial amount in 5 years. Assume the account pays a nominal annual interest of ��% compounded quarterly. Determine the value of ��.
Using compound interest, it is found that:
a) Pietro will have $1,719.49 in his account after 5 years.
b) The interest rate is of 8.19%.
What is compound interest?
The amount of money earned, in compound interest, after t years, is given by:
\(A(t) = P\left(1 + \frac{r}{n}\right)^{nt}\)
In which:
A(t) is the amount of money after t years. P is the principal(the initial sum of money). r is the interest rate(as a decimal value). n is the number of times that interest is compounded per year. t is the time in years for which the money is invested or borrowed.Item a:
Investment of 1500 euros, hence \(P = 1500\).Interest rate of 2.75%, compounded half-yearly, hence \(r = 0.0275, n = 2\).5 years, hence \(t = 5\).
Then:
\(A(t) = P\left(1 + \frac{r}{n}\right)^{nt}\)
\(A(5) = 1500\left(1 + \frac{0.0275}{2}\right)^{2(5)}\)
\(A(5) = 1719.49\)
Pietro will have $1,719.49 in his account after 5 years.
Item b:
Amount increases by 1.5 times, hence \(A(t) = 1.5(1500)\)Investment of 1500 euros, hence \(P = 1500\).Compounded quarterly, hence \(n = 8\).5 years, hence \(t = 5\).
Then:
\(A(t) = P\left(1 + \frac{r}{n}\right)^{nt}\)
\(1.5(1500) = 1500\left(1 + \frac{r}{4}\right)^{20}\)
\(1.5 = (1 + \frac{r}{4}\right)^{20}\)
\(\sqrt[20]^{(1 + \frac{r}{4}\right)^{20}} = \sqrt[20]{1.5}\)
\(1 + 0.25r = 1.02048015365\)
\(0.25r = 0.02048015365\)
\(r = \frac{0.02048015365}{0.25}\)
\(r = 0.0819\)
The interest rate is of 8.19%.
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The position vector for a particle is given as a function of time by
r
=x(t)
i
^
+y(t)
j
^
, with x(t)=at+b and y(t)=ct
2
+d where a=1.66( m/s),b=1.33( m),c=0.16( m/s
∧
2), and d=2.21( m). Determine the following quantities at t=1.11( s) : Note: give your answer as a number with 3 significant figures (without units). Use dot (.) for decimal point. (a) the distance from the particle to the origin O(0,0) of the coordinate system (m) (b) the speed of the particle (m/s) (c) the magnitude of the acceleration (m/s
∧
2) A particle initially located at the origin has an acceleration of
a
=1.75×
j
^
( m/s
∧
2) and an initial velocity of
v
i
=3.4×
i
^
( m/s). Find the following quantities at t=3.4 s : (Note: give your answer as a number with 3 significant figures (without units). Use dot (.) for decimal point.) (a) the x-coordinate of the particle (b) the y-coordinate of the particle (c) the speed of the particle
(a) At t = 1.11 s, the distance from the particle to the origin is 3.15 m. (b) The speed of the particle at t = 1.11 s is 1.86 m/s. (c) The magnitude of the acceleration at t = 1.11 s is 0.32 m/s². (a) At t = 3.4 s, the x-coordinate of the particle is 11.56 m. (b) The y-coordinate of the particle at t = 3.4 s is 17.14 m. (c) The speed of the particle at t = 3.4 s is 4.48 m/s.
(a) To find the distance from the particle to the origin, we use the formula for the magnitude of a vector: distance = √(x² + y²). Plugging in the given values at t = 1.11 s, we calculate the distance to be 3.15 m.
(b) The speed of the particle can be found by taking the magnitude of its velocity vector: speed = √(v_x² + v_y²). Plugging in the given values at t = 1.11 s, we calculate the speed to be 1.86 m/s.
(c) The magnitude of the acceleration can be found using the formula: magnitude of acceleration = √(a_x² + a_y²). Plugging in the given values at t = 1.11 s, we calculate the magnitude of the acceleration to be 0.32 m/s².
For the second scenario, the x-coordinate at t = 3.4 s can be found by plugging the given values into x(t) = a*t + b, which gives us 11.56 m. Similarly, the y-coordinate at t = 3.4 s can be found using y(t) = c*t² + d, which gives us 17.14 m. The speed of the particle at t = 3.4 s can be calculated using the same method as in (b), resulting in a speed of 4.48 m/s.
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17v + 3v = 20
Solve for V.
Answer:
v=1
Step-by-step explanation:
Answer:
V = 1
Hope this helped :)
15= x/6 -1
please respond quick
Answer:
The answer to your questions is 96.
The length of each side of an equilateral triangle is 4 cm longer than the length of each side of a square. If the perimeter of these two shapes is the same, find the area of the square.
The area of the square is 144 \(cm^{2}\).
Let x be the side of the square. Then the length of the triangle is (x+4). Perimeter is the length of all sides of a geometric figure combined. For an equilateral triangle, it's equal to thrice the length of one side. For a square, it's four times the length of one side. The Perimeter of the Triangle is 3(x+4) & the Perimeter of the square is 4x.
We know, both these perimeters are equal. Hence,
4x = 3(x+4)
To further simplify the above equation.
4x = 3x + 12
x = 12
Hence, the length of one side of the square is 12 cm. The area of the square can be calculated as follows:
Area = \((side)^{2}\)
Area = 12 * 12
Area = 144 \(cm^{2}\)
Hence, the Area of the Square is 144 \(cm^{2}\)
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Scientists in Florida are measuring the masses of sea turtles as they hatch. They create a line graph and plots the masses of 18 turtles, rounded to the nearest 1/4 of an ounce.
Answer:
36 3/4
Step-by-step explanation:
12 1/4 + 12 1/4 + 12 1/4 = 36 3/4 :)
Answer:
36 3/4
Step-by-step explanation:
12 1/4 + 12 1/4 + 12 1/4 = 36 3/4 :)
Divide the polynomial by the monomial denominator by writing the fraction as the sum (or difference ) of fractions. Simplify your answer, if possible. (6x^(3)+5x^(2)-9)/(x^(3))
The polynomial (6x³ + 5x² - 9)/(x³) can be written as the sum of fractions: 6 + (5x² - 9)/(x³)
How to divide the polynomialTo divide the polynomial (6x³ + 5x² - 9) by the monomial denominator (x³), we can write it as the sum of fractions.
(6x³ + 5x² - 9)/(x³)
We divide each of the three terms of the numerator by the denominator:
6x³/x³ + 5x²/x³ - 9/x³
by simplification of each term;
6 + 5/x - 9/x³
Now, we can combine these terms as;
6 + (5/x - 9/x³)
Finally, we simplify further:
6 + (5x² - 9)/(x³)
Therefore, the polynomial (6x³ + 5x² - 9)/(x³) can be written as the sum of fractions: 6 + (5x² - 9)/(x³)
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please help me answer ASAP
Answer: the answer is approximately 41.65428, not rounded (maybe re do all the steps just in case)
Step-by-step explanation:
1. label the space between X and W the unknown.
2. You will be using SOH-CAH-TOA
3. Label the X as the opposite because it is the opposite side of where your degree is located.
4. Label five as adjacent because it’s next to the degree.
5. You will use TOA since you have adjacent and opposite values.
6. Write the equation tan58=x/5, the unknown goes on the top because O is first, the five goes on the bottom because A is last on TOA.
7. After you have the equation time 5 on both sides leaving you out with (5)tan58=x
8. On your calculator time (5)tan58 which will give you x.
9. a = b = c = 12 m.
Geometry! I will give brainliest
Answer:
the figure is in cuboidal shape.
volume of cuboid=length ×width ×height
volume of cuboid=12mi×5mi×4mi
volume of cuboid=240mi³
Help please due sooonnnnnn
Answer:
A i believe
Step-by-step explanation:
identify the values of a h and k y=5/x+6-2
The values of a, h and k on the function are given as follows:
a = 5.h = 6.k = -2.The meaning of the transformations is given as follows:
Multiplication by a = 5 -> vertical stretch by a factor of 5.h = 6 -> translation left 6 units.k = -2, translation down 2 units.What is a translation?A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.
The four translation rules for functions are defined as follows:
Translation left a units: f(x + a).Translation right a units: f(x - a).Translation up a units: f(x) + a.Translation down a units: f(x) - a.The parent function in this problem is given as follows:
y = 1/x.
Hence the meaning of the transformations is given as follows:
Multiplication by a = 5 -> vertical stretch by a factor of 5.h = 6 -> transformation f(x + 6), translation left 6 units.k = -2, transformation f(x) - 2, shift down 2 units.More can be learned about translations at brainly.com/question/28174785
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a smoothie is made of 60% fruit and 40% water. if 4 cups of smoothie is to be made, how many cups of smoothie mixture should be fruit?
The cups of smoothie mixture should be fruit is 2.4
How many cups of smoothie mixture should be fruit?To find how many cups of the smoothie mixture should be fruit when 4 cups of smoothie are to be made, we can use proportions.
Let's call the number of cups of fruit needed x.
So, we have
x = percentage of fruit * number of cups
Substitute the known values in the above equation, so, we have the following representation
x = 60% * 4
Evaluate
x = 2.4
Hence, 2.4 cups of the smoothie mixture should be fruit to make 4 cups of smoothie with a 60% fruit and 40% water ratio.
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A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 14 accounts was checked and yielded a mean balance of $644.14 and a standard deviation of $297.29. Find a 98% confidence interval for the true mean checking account balance for local customers. You may assume balances are normally distributed
The 98% confidence interval is (433.5866,854.6934)
What is a confidence interval?
A confidence interval (CI) for an unknown parameter in frequentist statistics is a range of estimations. The most popular confidence level is 95%, but other levels, such 90% or 99%, are occasionally used for computing confidence intervals. The fraction of related CIs over the long run that actually contains the parameter's true value is what is meant by the confidence level.
Given n = 14
Mean x = 644.14
standard deviation is s = 297.29
here α= 0.02
t(α</2,-1) = 2.65
The 98% confidence interval for mean is given by
z = x'- u / α(/√n) = (23-24/5.5/√5) =
x'-u / α(/√n) ≤ µ ≤ x'+u / α(/√n)
⇒(433.5866≤µ≤854.6934)
Hence, The 98% confidence interval is (433.5866,854.6934)
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g(x)=-(x+1)(r-1)(-4)
In standard form?? Please help!
Answer:
g(x) = 4rx + 4r - 4x - 4
Step-by-step explanation:
g(x)= -(x+1)(r-1)(-4)
True or false rational numbers are integers
Answer:
False Bri Please mark me as brainlist answer. I am in search of 1 brainlist answer.
help me with this please
Given sin A = and that angle A is in Quadrant I, find the exact sec A in simplest radical form using a rational denominator
For 50pt
Answer: Read the step by step explanation
Step-by-step explanation:
Since sin A = , we can use the Pythagorean identity to find cos A:
cos A = √(1 - sin²A) = √(1 - ( )²) = √(1 - ) = √()
Since A is in Quadrant I, both sin A and cos A are positive. Therefore, we can use the definition of secant to find sec A:
sec A = 1/cos A = 1/√() = √()/
To simplify the expression, we can rationalize the denominator by multiplying both the numerator and denominator by √():
sec A = (√()/)(√()/√()) = √()/ =
Therefore, the exact secant of A in simplest radical form using a rational denominator is .
Which system of inequalities is shown by the graph?
Answer:
B
It's the only set that matches the line shown above, when plotted.
Hope this helps!
If a line is perpendicular to a line segment, what angle do they form at their
intersection?
A. 90°
B. 45°
C. 180°
D. 09
Could someone please let me know the amounts for the blank sections? I'd really appreciate it :)
To determine the missing amounts in each situation, let's analyze the given information.Situation a: Supplies available-prior year end: $3,578
Supplies purchased during the current year: $675
Total supplies available: $4,725
To find the missing amount, we can subtract the known values from the total supplies available:
Missing amount (Situation a) = Total supplies available - (Supplies available-prior year end + Supplies purchased during current year)
= $4,725 - ($3,578 + $675)
= $4,725 - $4,253
= $472
Therefore, the missing amount in Situation a is $472.
Situation b:
The missing amount is already provided in the question as $12,165.
Situation c:
Supplies available-current year-end: $3,041
Supplies expense for the current year: (unknown)
To find the missing amount, we need to determine the supplies expense for the current year. However, based on the given information, there is no direct indication of the supplies expense. It is not possible to determine the missing amount in this situation without additional information.
Situation d:
Supplies available-current year-end: $5,400
Supplies expense for the current year: $24,257
To find the missing amount, we can subtract the known supplies expense from the supplies available at the current year-end:
Missing amount (Situation d) = Supplies available-current year-end - Supplies expense for the current year
= $5,400 - $24,257
= -$18,857 (negative value indicates a loss)
Therefore, the missing amount in Situation d is -$18,857 (indicating a loss of $18,857).
In summary, we were able to determine the missing amounts in Situations a and d, while Situations b and c already provided the missing amounts in the question.
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please answer fast
Find the area of the region enclosed between f(x) = 22 - 2x + 3 and g(x) = 2x2 - 1-3. Area = (Note: The graph above represents both functions f and g but is intentionally left unlabeled.) 2 Find the
The area enclosed between the functions f(x) = 22 - 2x + 3 and g(x) = 2x^2 - 1-3 can be calculated by finding the definite integral of their difference. The result will give us the area of the region between the two curves.
To find the area between the curves, we need to determine the points where the curves intersect. Setting f(x) equal to g(x), we can solve the equation 22 - 2x + 3 = 2x^2 - 1-3. Simplifying, we get 2x^2 + 2x - 19 = 0. Using quadratic formula, we find the values of x where the curves intersect.
Next, we integrate the difference between the functions over the interval between these x-values to calculate the area. The definite integral of [f(x) - g(x)] will give us the area of the region enclosed by the two curves.
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"The sum of 5% of a number and 9 is 16."
translate the question for me!!
Answer:
x = 140
Step-by-step explanation:
5% = 5/100 = 0.05
0.05x + 9 = 16
0.05x = 16-9
x = 7/0.05
x = 140
every rational numbers is a ________
Answer:
Number that can be definitely defined, like 3.75, not 3.777....
Hope that helps!
Step-by-step explanation:
Find the sum of f(4) + g(-5) when f(x) = 4x - 3 and g(x) = -2x + 10
Answer:
33
Step-by-step explanation:
f(4) = 4(4) - 3 = 16 - 3 = 13
g(-5) = -2(-5) + 10 = 10 + 10 = 20
13 + 20 = 33
Sam was building a suspension bridge for the playground at an elementary school and needed some chain link and rope.He bought a total of 80 feet of materials. The chain link cost $2.00 per foot, and the rope cost $1.50 per foot. He spent a total of $135. How much of eacb did he buy?
Answer:
30 feet of chain link and 50 feet of rope
Step-by-step explanation:
Let's call the amount of chain link as x and the amount of rope as y. We can write:
x + y = 80 -- Equation 1
2x + 1.5y = 135 -- Equation 2
2x + 2y = 160 -- Equation 3 (Multiply Equation 1 by 2)
0.5y = 25 (Subtract Equation 2 from Equation 3)
y = 50 (Divide by 2)
x + 50 = 80 (Substitute y = 50 into Equation 1)
x = 30 (Subtract 50)
write mathematically square root of 121
Answer:
Step-by-step explanation:
The mathematical translation of the statement:
\(\sqrt{121} = \sqrt{11 *11}\)
\(= \sqrt{11^{2}}\)
\(= (11^{2}) ^{\frac{1}{2} }\)
The indices will cancel each other out completely:
\(= 11\)
OR:
\(\sqrt{121} = \sqrt{(-11)*(-11)}\)
\(= \sqrt{(-11)^{2} }\)
\(= [(-11)^{2}] ^{\frac{1}{2} }\)
= -11
A man and his three children spent $40 to attend a show. A second family of three children and their two parents spent $53 for the same show.
The system of linear equations shown represents this situation, where x is the cost of an adult ticket and y is the cost of a child ticket.
x+3y=40
2x+3y=53
How much will a family pay for 2 adult tickets and 4 child tickets?
Please help as soon as possibly will give brainliest
Answer:
The last option.
Step-by-step explanation:
Because, x*5 each time, gets you y.