Answer:
A) 15
B) 0.9
Step-by-step explanation:
Use the correct order of operations.
A) 40 − 5 ÷ 1/5 =
= 40 − 5 * 5
= 40 - 25
= 15
B) (4.8 − 1.8 ÷ 6) ÷ 5 =
= (4.8 − 0.3) ÷ 5
= 4.5 ÷ 5
= 0.9
Logan's mom was reviewing her receipt from her last shopping trip to the local Mega Mart. On the receipt,
Fstands for "Food" and T stands for "Taxed." The total for food is $12.26, and the total for non-food
items is $17.25. She knows that the state sales tax is 8.25% on non-food items. What was the sales tax
amount for the non-food items? Round to the nearest cent, like $5.12.
Answer:
$1.42
Step-by-step explanation:
it was correct for me after submitting my work
By observing that f(x) = 1/(1 - 2x) is the sum of a geometric series (of the form a/(1 - r)), find the power series expansion of this function. Observation of Series: We'll observe the value of the first term or numerator aa and the common ratio r (it is the quotient of the second term to the first term) in the denominator of the rational function a1−ra1−r, plug these values in the formula of expansion. a1−r=a+ar+ar2+ar3+…a1−r=a+ar+ar2+ar3+… Where |r||r| is less than one.
The power series of the given function is 1 + (2x) + (2x)² + (2x)³+ --------------------- + (2x)ⁿ
We know very well that sum of n terms who are in geometric progression their sum of expression is given by a/1-r where a is first term and r is common ratio between the terms.
Now, we have function f(x)=[1 / (1-2x)]
On comparing with a/1-r with f(x),we get
=>a=1 and r=2x
Now, we know that first term of geometric progression is given by =1
second term of geometric progression is given by=a × r= 1 ×2x
third term of geometric progression is given by =a×r² =1×(2x)²
fourth term of geometric progression is given by=a×r³ =1 × (2x)³
nth term of geometric progression is given by =a×(r)ⁿ = 1 × (2x)ⁿ
Therefore, according to the given formula progression series of given function is=a+ ar +ar² + ar³ + -----------arⁿ
=>progression series = 1+ 2x + (2x)² + (2x)³ + --------- + (2x)ⁿ.
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(9x + 1) -(-7x2 + 4x + 10)
Answer:
= 7x² + 5x - 9
Step-by-step explanation:
(9x + 1) - (-7x² + 4x + 10)
= 9x + 1 - ( -7x² + 4x + 10)
= 9x + 1 + 7x² - 4x - 10
= 7x² + 5x - 9
A store opens at 8am. From 8 until 10am customers arrive at a Poisson rate of four an hour. Between 10am and 12pm they arrive at a Poisson rate of eight an hour. From 12pm and 2pm the arrival rate increases steadily from eight per hour at 12pm to ten per hour at 2pm; and from 2 to 5pm the arrival rate drops steadily from ten per hour at 2pm to four per hour at 5pm. Determine the probability distribution of the number of customers that enter the store on a given day.
The probability distribution of the number of customers that enter the store on a given day is described as follows:
Poisson with a mean of 70 customers.
What is the Poisson distribution?In a Poisson distribution, the mass function probability that X represents the number of successes of a random variable is given by the equation presented as follows:
\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)
The parameters are:
x is the number of successes that we want to find the probability of.e = 2.71828 is the Euler number.\(\mu\) is the mean in the given interval or range of values of the input parameter.A combination of Poisson variables is a Poisson variable, hence the daily distribution is a Poisson variable with mean given by the sum of these following observations:
8 customers from 8 am to 10 am.16 customers from 10 am to 12 pm.18 customers from 12 pm to 2 pm. (the average over the interval is of 9 an hour).28 customers from 2 pm to 5 pm.Hence the mean is of:
8 + 16 + 18 + 28 = 70 customers.
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What is the y intercept of y =4x
Answer:
origin of the graph (0)
Step-by-step explanation:
because it does not have a b value it is zero if there is no plus or minus a number at the end it is always 0 when dealing with the y=mx+b equation
find the lcm 15 and 20
Answer:
5
Step-by-step explanation:
160km to mi = 99.4194 but what is It rounded to the nearest hundredth
Answer:
99.42
Step-by-step explanation:
Rounded to nearest hundredth means rounded to 2 decimal places. If we take only the first two decimal places the value is 99.41 but since the next digit is ≥ 5 (it is a 9), we round up to 99.42
Answer:
100mi just round it by the last nine
The speed of a passenger train is 8 mph faster than the speed of a freight train. The passenger train travels 280 miles in the same time it takes the freight train to travel 240 miles. Find the speed of each train.
The speed of the freight train is 30 mph, and the speed of the passenger train is 30 + 8 = 38 mph.
We have,
Let's denote the speed of the freight train as x mph.
Since the speed of the passenger train is 8 mph faster, we can denote the speed of the passenger train as (x + 8) mph.
To find the speeds of each train, we can use the formula:
Speed = Distance / Time
For the passenger train: (x + 8) = 280 / t, where t is the time taken to travel 280 miles.
For the freight train: x = 240 / t, where t is the time taken to travel 240 miles.
Since the times taken for both trains are the same, we can set the two equations equal to each other:
(x + 8) = 280 / t = x = 240 / t
Cross-multiplying the equation, we have:
(x + 8) t = x (280 / t)
xt + 8t = 280
xt - x = 240
Simplifying the equation, we get:
xt - x = 240
x(t - 1) = 240
Dividing both sides by (t - 1):
x = 240 / (t - 1)
Substituting the value of x in the first equation:
(x + 8) = 280 / t
240 / (t - 1) + 8 = 280 / t
Simplifying the equation, we get:
240t + 8(t - 1) = 280(t - 1)
240t + 8t - 8 = 280t - 280
248t - 8 = 280t - 280
280 - 8 = 280t - 248t
272 = 32t
t = 272 / 32 = 8.5
Substituting the value of t in the equation for x:
x = 240 / (t - 1) = 240 / (8.5 - 1) = 30
Therefore,
The speed of the freight train is 30 mph, and the speed of the passenger train is 30 + 8 = 38 mph.
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You can use the equation A =(HW/3600)^1/2
to approximate a person's body surface area A (in square meters), where H
is height (in centimeters) and W is weight (in kilograms). Approximate the body surface area of a person with a height
of 160 centimeters and a weight of 64 kilograms.
Body surface area:______
m²
The body surface area is given by the equation A = 1.6865 m²
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the body surface area be represented as A
Now , the equation will be
A = ( HW / 3600 )^1/2
A = √( HW / 3600 ) be equation (1)
where H is the height in centimeters and W is the weight in kilograms
Now , the value of H = 160 cm
The value of W = 64 kg
Substituting the values in the equation , we get
A = √ [ ( 160 x 64 ) / 3600 ]
On simplifying the equation , we get
A = √ ( 10240/3600 )
A = √ ( 2.8444 )
A = 1.6865 m²
Therefore , the body surface area is 1.6865 m²
Hence , the equation is A = 1.6865 m²
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Which situation represents the greatest percent of increase?
a. Original: 60
New: 75
b. Original: 140
New: 200
c. Original: 900
New: 1000
d. Original: 30
New: 60
Answer:
d because it incresed by 50binstead of 13 12 and 23 percent
Which polynomial function could be represented by the graph below?
Can you please tell me the sum of the question
Answer:
B) \(4i\sqrt{2}\)
Step-by-step explanation:
\(\sqrt{-2}=i\sqrt{2}\\\sqrt{-18}=i\sqrt{18}=i\sqrt{9*2}=3i\sqrt{2}\\\\\sqrt{-2}+\sqrt{-18}=i\sqrt{2}+3i\sqrt{2}=4i\sqrt{2}\)
Let P(x) be a predicate in the domain consisting of just the numbers 0 and 1. Let p be the statement P(0) and let q be the statement P(1).
(a) Write (∀x)P(x) as a propositional logic formula using p and q.
(b) Write (Ǝx)P(x) as a propositional logic formula using p and q.
(c) In this situation, which derivation rule from propositional logic corresponds to the universal and existential negation rules of predicate logic?
(∀x)P(x) can be written as p ∧ q, (Ǝx)P(x) can be written as ¬p ∨ ¬q, and the universal and existential negation rules of predicate logic correspond to the DeMorgan's law of propositional logic, which states that ¬(p ∨ q) = ¬p ∧ ¬q.
a) The statement (∀x)P(x) states that P(x) is true for all x in the domain, which consists of just 0 and 1. So, if P(0) is true, represented by p, and P(1) is true, represented by q, then (∀x)P(x) is true. Therefore, (∀x)P(x) can be written as p ∧ q.
b) The statement (Ǝx)P(x) states that P(x) is true for at least one x in the domain, which consists of just 0 and 1. So, if either P(0) is true, represented by p, or P(1) is true, represented by q, then (Ǝx)P(x) is true. Therefore, (Ǝx)P(x) can be written as p ∨ q.
c) The negation of (∀x)P(x), represented as ¬(∀x)P(x), is equivalent to the negation of (∀x)P(x) in predicate logic, represented as (Ǝx)¬P(x). This corresponds to DeMorgan's law of propositional logic, which states that ¬(p ∧ q) = ¬p ∨ ¬q.
Similarly, the negation of (Ǝx)P(x), represented as ¬(Ǝx)P(x), is equivalent to the negation of (Ǝx)P(x) in predicate logic, represented as (∀x)¬P(x). This corresponds to DeMorgan's law of propositional logic, which states that ¬(p ∨ q) = ¬p ∧ ¬q.
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Which of these values for P and a will cause the function f(x)-Pa* to be an
exponential growth function?
A. P= 4; a = 1
B. P = ¹; a=
a=¹
D. P=1;a= 5
C. P = 4; a
The values for P and a that will cause the function f(x) = Pa^x to be an exponential growth function are:
C. P = 4; a = 5
D. P = 1; a = 4
How to find the values for P and a will cause the function f(x)-Pa* to be an exponential growth functionAn exponential growth function is characterized by the property that the base (a) of the exponential term is greater than 1 (a > 1). This is because the exponentiation of a number greater than 1 by increasing values of x leads to exponential growth.
Therefore, the values for P and a that will cause the function f(x) = Pa^x to be an exponential growth function are:
C. P = 4; a = 5
D. P = 1; a = 4
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The Middle Ages lasted approximately from
Answer: The Middle Ages lasted approximately from the 5th to the late 15th century. It began with the fall of the Western Roman Empire and merged into the Renaissance and the Age of Discovery.
What is the value for x that makes the equation
4r - 2 + 3x - 7= -51 true?
Answer:
x = -4r/3 - 14
-----------------------------
Answer:
thanks for tha points
Step-by-step explanation:
Find the absolute extreme values of the function on given interval.
The absolute extreme values are:
absolute min. (4, -128)
absolute max. (-4, 128)
when, x=-5 then y=27
I need help please ASAPPP!
Answer:
16
Step-by-step explanation:
Please see attached photo for diagrammatic explanation.
Note: r is the radius
Using pythagoras theory, we can obtain the value of 'x' in the attached photo as shown:
|EB|= x
|FB| = 10
|EF| = 6
|EB|² = |FB|² – |EF|²
x² = 10² – 6²
x² = 100 – 36
x² = 64
Take the square root of both side.
x = √64
x = 8
Now, we can obtain line AB as follow:
|AB|= x + x
|AB|= 8 + 8
|AB|= 16
Therefore, line AB is 16
Luct sold 8 cups of lemonade abbie sold 6 times as many cups of lemonade
The amount of cups of lemonade sold by Abbie is 6 x 8 = a.
Hence, option A is correct.
Use the concept of multiplication defined as:
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that,
Number of lemonade cups sold by Lust = 8
Number of lemonade cups sold by Abbie = 6 times of lust
Let 'a' represents the number of cups sold by Abbie,
Therefore,
6 x 8 = a
Hence,
The correct expression is 6 x 8 = a which is option A.
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The complete question is:
Luct sold 8 cups of lemonade Abbie sold 6 times as many cups of lemonade. Which equation helps us find how many cups Abbie sold if the number of cups sold by Abbie is 'a'.
A. 6x8 = a
B. 8xa = 6
C. 6xa = 8
Calculator What is the area of a sector with a central angle of 144° and a radius of 11 cm? Use 3.14 for π and round your final answer to the nearest hundredth. Enter your answer as a decimal in the box. cm² K
Rounding to the nearest hundredth, the area is approximately 151.976 cm².
The formula for the area of a sector is:
A = (θ/360) x πr²
where θ is the central angle in degrees, r is the radius, and π is pi (3.14).
Plugging in the given values, we get:
A = (144/360) x 3.14 x 11^2
A = 0.4 x 3.14 x 121
A = 151.976
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9. Find the volume of a cone with a radius of 10 mm and a height of 6 mm.
O 628 mm³
O 600 mm³
O 1,884 mm 3
O 1,254 mm
Answer:
Step-by-step explanation:
The formula for the volume of a cone is:
V = (1/3)πr^2h
where V is the volume of the cone, r is the radius of the base, and h is the height of the cone.
Substituting the given values, we have:
V = (1/3)π(10 mm)^2(6 mm)
V = (1/3)π(100 mm^2)(6 mm)
V = (1/3)π(600 mm^3)
V = 200π mm^3
Using a calculator to approximate π to 3.14, we get:
V ≈ 628.32 mm^3
Therefore, the answer is O 628 mm³.
Can someone please help me? This is a geometry question.
Answer:
A is the answer think so is that helpful or helpless plz reply
in a northeast georgia county the speed limited 35 mph the fine are determined by the formula
The speed will be 76 mph.
How to illustrate the information?From the information, in a northeast georgia county the speed limited 35 mph the fine are determined by the formula: F(s) = 9(s - 45) + 40
The fastness other person will be:
9(s - 45) + 40 = 319
9(s - 45) ,= 319 - 40
9(s - 45) = 279
s = 32 + 45
s = 76 mph
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Complete question:
In a northeast georgia county the speed limited 35 mph the fine are determined by the formula: F(s) = 9(s - 45) + 40. If a fine given is $319. How fast was the person driving?
Can you help me with this problem? Find the area of the triangle. Round to the nearest tenth. Hint: first use the Law of Sines to solve for c.
Recall that the sine law states that:
\(\frac{CA}{\sin B}=\frac{AB}{\sin C}=\frac{BC}{\sin B}\text{.}\)Therefore:
\(\frac{c}{\sin105^{\circ}}=\frac{7}{\sin 35^{\circ}}\text{.}\)Solving for c we get:
\(\begin{gathered} c=\frac{7\times\sin 105^{\circ}}{\sin 35^{\circ}}, \\ c\approx11.7883. \end{gathered}\)Now, we know that the interior angles of a triangle add up to 180 degrees, therefore the measure of angle A is:
\(\begin{gathered} \measuredangle A=180^{\circ}-35^{\circ}-105^{\circ}, \\ \measuredangle A=40^{\circ}. \end{gathered}\)Using the sine law we get:
\(\frac{CB}{\sin40^{\circ}}=\frac{7}{\sin 35^{\circ}}\text{.}\)Solving the above equation for CB we get:
\(\begin{gathered} CB=\frac{7\times\sin 40^{\circ}}{\sin 35^{\circ}}, \\ CB\approx7.8447. \end{gathered}\)Finally, using Heron's formula we get that the area of the given triangle is:
\(\begin{gathered} A=\sqrt[]{13.3165(13.3165-7.8447)(13.3165-11.7883)(13.3165-7)}, \\ A=\sqrt[]{13.3165(5.4718)(1.5282)(6.3165)}, \\ A\approx\sqrt[]{703.3589}, \\ A\approx26.5. \end{gathered}\)Answer:
\(A\approx26.5\text{ units}^2.\)Help me please! With my Algebra 2. :)
Answer:
c
Step-by-step explanation:
A line passes through point (6,7) and has a slope of -3/2.
Write an equation in Ax + B y=C form for this line.
Use integers for A, B, and C.
Answer:
Equation of line is given as y = mx + c, where m is the slope and c is the y-intercept.
Since line has a slope of -3/2, equation is y = -3/2x + c.
Substitute (6,7) into the equation to find c.
7 = -3/2(6) + c
c = 16
Hence equation of line is y = -3/2x + 16.
Find the measure of angle AEB
Answer:
∠ AEB = 114°
Step-by-step explanation:
the chord- chord angle AEB is half the sum of the measures of the arcs intercepted by the angle and its vertical angle , that is
∠ AEB = \(\frac{1}{2}\) (AB + CD) = \(\frac{1}{2}\) (140 + 88)° = \(\frac{1}{2}\) × 228° = 114°
The graph shows a proportional relationship, y = kx
HURRY ASAPPPPP
What is the constant of proportionality, k?
Answer:
if you pay attention when x = 1 y=4 and when x=2 y=8, then the proportionality constant is equal to 4
Step-by-step explanation:
A factory made 3 jars of creamy peanut butter and 97 jars of chunky peanut butter. What percentage of the jars of peanut butter were creamy?
Answer:
3%
Step-by-step explanation:
They made 97+3 total jars, 3 out of 100 is 3 percent.