The exponential function f(x)=(1/8)^-x can be evaluated to give us:
f(2)= 64f(-3)= 1/512f(-3)= [tex]\frac{1}{\sqrt{\frac{1}{8} } }[/tex]What is exponential function?An exponential function serves as Mathematical function in the form f (x) = ax hving “x” as variable,the conceptis the concept of exponential function.
The given function is f(x)=(1/8)^-x
Then f(2)=(1/8)^-2 = 1/(1/8)^2 =1/(1/64) =64
f(-3)=(1/8)^-(-3) = 1/512
f(-3)=(1/8)^-(1/2) =[tex]\frac{1}{\sqrt{\frac{1}{8} } }[/tex]
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Which of the following statements is true? Choose the correct statement below. 1 O A. The equation x3 - x2 - x - 1 = 0 is equivalent to the equation x2(x - 1)-(x - 1) = 0. B. The equation 2x3 - x2 + 4x - 2 = 0 has solutions x = or x= +2 1. C. The equation x3 – x2 - x + 1 = 0 is equivalent to the equation (x2 - 1)(x - 1)(x + 1) = 0. OD. The equation x3 - x2 - x + 1 = 0 is equivalent to the equation x2(x - 1)-(x-1)=0. 2
Option D. The statement that is true from the equations that we have here is D. The equation x3 - x2 - x + 1 = 0 is equivalent to the equation x2(x - 1)-(x-1)=0.
How to solve the equationI will have to start for the equation D, because at close glance we can easily see that the powers would be equal
The equation x3 - x2 - x + 1 = 0 is equivalent to the equation x2(x - 1)-(x-1)=0.
We are to simplify x²(x - 1)-(x-1)
we would have to open the brackets from the above
x² * x + x² * (-1) - x - (-1) = 0
It would be important to pay attention at the signs
such that we would have
x³ - x² - x + 1 = 0
Therefore the equation x^3 - x^2 - x + 1 = 0 is equivalent or equal to x³ - x² - x + 1 = 0 because they have the same solution
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Help pls and thx 20 points
a) 7y and (2y²-9) are the length and width expressions where one dimension is the GCF.
b) When y= 2, the area of the rectangle is -14
What is meant by area?The area amount expresses the size of a region on a planar or curved surface.
A two-dimensional figure's area is the amount of space it occupies. It is the number of unit squares that cover the surface of a closed figure in other words. Square units, which are frequently expressed as square inches, square feet, and so on, are the standard unit of area.
A rectangle is a two-dimensional figure, and if one of the dimensions is the GCF, as indicated in the job, then:
7y and (2y²-9) are the length and width expressions where one dimension is the GCF.
Furthermore, when y= 2, the area of the rectangle is;
14(2³) - 63(2) = 112-126
= -14
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Please try to prove that the slope of the normal line of y=mx+bis -1/m
The slope of the normal line is proved to be -1/m using tangent
How to show that the slope of normal line is -1/m
Slope is similar to tangent and sometimes used interchangeably
assuming two lines of slope m and m', the angle between the two lines is x
tan x = (m - m') / (1 + mm')
for a normal line x = 90
tan 90 = (m - m') / (1 + mm')
tan 90 is ∞ = 1 / 0
1 / 0 = (m - m') / (1 + mm')
cross multiplying
1 * (1 + mm') = 0 * (m - m')
1 + mm' = 0
mm' = -1
m = -1/m'
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I NEED HELP ASAP WITH THIS
Answer: Jorge would have to run 3 [tex]\frac{3}{8}[/tex] miles to reach his 23 mile goal.
Step-by-step explanation:
When you add 5 [tex]\frac{3}{4}+ 7 \frac{3}{8}[/tex]=[tex]13\frac{1}{8}[/tex]
[tex]13\frac{1}{8}+6 \frac{1}{2}=19\frac{5}{8}[/tex]
Now you can subtract [tex]19 \frac{5}{8}[/tex] from 23, which would give you [tex]3\frac{3}{8}[/tex], being the total amount of miles left to run. You can add the terms without a calculator as well, by making the fractions have a common denominator.
Hope this helps!
Mr. Evans is currently 4 times as old as his son, Dan. If Mr. Evans was 46 years old 2 years ago, how old is Dan now?
Answer:
the son age is 13band Evans age is 52 years old at present day
Dan is 12 years old.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
let the Age of Dan is x years
Mr. Evans Age = 4x
If Mr. Evans was 46 years old 2 years ago
The, Present age of Mr. Evans = 48 years
So, Dan's Age = 48/4
= 12 years.
Hence, Dan is 12 years old.
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what’s the solution for 7x - 10x + 2x = -5
Answer:
x = 5
Step-by-step explanation:
Finding the solution is getting the value for x that makes the math sentence true.
7x -10x +2x = -5
Combine like terms (all the x terms can add together)
-x = -5
Multiply (or divide) both sides by -1
x = 5
Differentiate the function with respect to x. Shot steps
[tex]f'(x)=\frac{1}{\sqrt{1-(-4x^{2} + 3)^{4})^2} } 4.(-4x^2+3)^{3}[/tex] is differentiation of [tex]f(x)=sin^{-1}(-4x^{2} + 3)^{4}[/tex]
What is Differential equation?A differential equation is an equation that contains one or more functions with its derivatives.
The given function is [tex]f(x)=sin^{-1}(-4x^{2} + 3)^{4}[/tex]
By using chain rule we differentiated the function.
d/dx sin⁻¹x=1/√1-x²
[tex]f'(x)=\frac{1}{\sqrt{1-(-4x^{2} + 3)^{4})^2} } 4.(-4x^2+3)^{3}[/tex]
Hence,[tex]f'(x)=\frac{1}{\sqrt{1-(-4x^{2} + 3)^{4})^2} } 4.(-4x^2+3)^{3}[/tex] is differentiation of [tex]f(x)=sin^{-1}(-4x^{2} + 3)^{4}[/tex]
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What is this question √5 + √5
The simplification form of the expression √5 + √5 is 2√5 after adding like terms.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
It is given that:
The number expression is:
√5 + √5
After adding like terms:
2√5
The question is:
Solve the expression:
√5 + √5
Thus, the simplification form of the expression √5 + √5 is 2√5 after adding like terms.
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Answer the questions ⬇️
Answer:
page 1=45 points
page 2
1=30
2=10
3=56
page 3
$1000
Step-by-step explanation:
Jamal's friends toss 12 balls to him at the same time. Three balls are red, 3 are green, 3 are blue, and 3 are white. Jamal manages to catch 5 of the balls.
What is the probability that he catches 2 red balls and 1 ball of each of the other colors?
Enter your answer as percentage, expressed to the nearest tenth of a percent, like this: 42.2%
Answer:
Step-by-step explanation:
1 white 1 green 1 blue + 2 reds = 5 balls
5 seen as a percentage
5%
Determine the distance between the points (−1, −4) and (−9, −8).
Answer:
The distance between these two points with coordinates (-1, -4) and (-9, -8) is 8.94 unites
Start Root 144 End Root=
A. 11
B. 12
C. 13
D. 14
pre algebra
fast would appreciate it
Answer:
the answer is 12
explanation 12x12= 144
3x+2y=4 x=y+3
System of equations
Answer:
(2,-1)
Step-by-step explanation:
Given system of equations:
3x + 2y = 4x = y + 3We are going to use the substitution method.
Step 1: Solve for x = y + 3 for x:
(Substitute y + 3 for x in 3x + 2y = 4)
3x+2y=4
3(y+3)+2y=4
5y + 9 = 4 ----> Simplify both sides of the equation
5y+9+−9=4+−9 -------> Add -9 to both sides
5y=−5
5y5 = -5/5 ------> Divide both sides by 5
y = −1
Step 1: Substitute -1 for y in x = y + 3:
x = y + 3
x = -1 + 3
x = 2 --------> (Simplify both sides of the equation)
Answer:
(2,-1)
36/(x-3)=4 thank uu :>
Answer:
12
Step-by-step explanation:
36 / (x - 3) = 4
multiply both sides by (x - 3):
(x - 3)(36 / (x - 3)) = 4(x - 3)
36 = 4(x - 3)
expand right side:
36 = 4x - 12
add 12 to both sides:
36 + 12 = 4x - 12 + 12
48 = 4x
divide both sides by 4:
48/4 = 4x/4
x = 12
During the 2008 - 2009 financial crisis, the GDP of the USA reduced from $14.72 trillion in 2008 to $14.42 trillion in 2009. What is the percentage change between these two years? around your answer to the nearest hundredth of a percent.
The percentage change in GDP is 2.04%
Percentage ChangePercentage Change is the difference coming after subtracting the old value from the new value and then divide by the old value and the final answer will be multiplied by 100 to show it as a percentage. Generally, to convert a fraction into a percent, we multiply it by 100.
The formula of percentage change is given as
Percentage change =[ (New increase - old value) / old value] * 100
Percentage change = [(14.72 - 14.42) / 14.72] * 100
Percentage change = 2.04%
In this case, there is a percentage decrease of 2.04%
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2x + 3y = 13
4x - y =-2
Answer:
x = 1/2
y = 4
Step-by-step explanation:
Given equations:2x + 3y = 13 ----------------------(1)
4x - y = -2 ------------------------(2)
Multiply Eq. (1) by 2
2(2x + 3y) = 13 × 2
4x + 6y = 26 -------------------(3)
Subtract Eq. (3) from Eq. (2)
4x - y - 4x - 6y = -2 - 26
-y - 6y = -28
-7y = -28
7y = 28
Divide 7 to both sides
y = 4Put y = 4 in Eq. (2)
4x - 4 = -2
Add 4 to both sides
4x = -2 + 4
4x = 2
Divide 4 to both sides
x = 2/4
x = 1/2[tex]\rule[225]{225}{2}[/tex]
PLS QUICK How did the mountainous geography of Athens influence the economy?
The people of Athens mined gold for trade.
The people of Athens were unable to raise any crops.
The people of Athens focused on the military to protect their region.
The people of Athens relied on sea trade.
Option D. The mountainous geography of Athens influence the economy as The people of Athens relied on sea trade.
How did the terrain of Athens influence the economy ?Greece's rugged terrain caused some areas, particularly Athens, to become dependent on trade. Many Greeks went on to become seafaring tradesmen and merchants. Greeks engaged in trade with other Mediterranean people for pottery, wine, and olive oil. They communicated with the outside world by sailing to neighboring islands.
The geography of the area influenced the ancient Greeks' political system and way of life. Mountains, seas, and islands formed natural barriers between the Greek city-states, forcing the Greeks to relocate to coastal areas.
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asap pls
Simplify the expression and write the answer with
only positive exponent
(2p²)-³q4
(6q)-¹p-7
Answer:
8p^6q^4
6qp-7
Step-by-step explanation:
Three artists Richard, Allan and Shelby are painting the rooms of a building which
are numbered from 10 – 150. Richard has to work in all the rooms. Allan has to work in rooms
where the room number is a multiple of 3. Shelby has to work in rooms where the room number
is a multiple of 5. In which rooms will they all work together?
The rooms which the three artists Richard, Allan and Shelby will work together are room 15, 30, 45, 60, 75, 90, 105, 120, 135, 150 making a total of 10 rooms.
Which rooms will the three artist work together?Richard works in all the roomsAllan works in rooms multiple of 3Shelby works in rooms multiple of 5Find the multiples of 3 and 5
Multiples of 3 = 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99, 102, 105, 108, 111, 114, 117, 120, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150Multiples of 5 = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150The common multiples of 3 and 5 are; 15, 30, 45, 60, 75, 90, 105, 120, 135, 150
Each common multiple represent a room
= 10 rooms
Therefore, the rooms which the three artist will work together is 10 rooms
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At a company 75% of the employees were men . After six women joined the company the ratio of men to women was2:1. Work out how many men work at the company
The number of men and women that work at the company are;
Number of men = 36
Number of women = 18
How to solve ratio word problems?Let the total number of employees in the company be x.
Now, we are told that 75% of the employees were men. Thus;
Number of men = 75% * x = 0.75x
Number of women = 0.25x
Now, we are told that after 6 women joined, the ratio of men to women became 2: 1.
Thus;
New total employees = x + 6
New total number of women = 0.25x + 6
Thus;
0.75x/(0.25x + 6) = 2/1
Cross multiply to get;
0.75x = 2(0.25x + 6)
0.75x = 0.5x + 12
0.75x - 0.5x = 12
0.25x = 12
x = 12/0.25
x = 48
Number of women = 0.25(48) + 6 = 18
Number of men = (48 + 6) - 18 = 36
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5. If each month in Reno had the same
average rainfall as in August, what
would the total
amount of rainfall be
after 12 months?
Rewrite sin(x+5pi/4) in terms of sin(x) and cos(x)
sin(x+5pi/4) sin(x+5pi/4) in terms of sin(x) and cos(x) can be rewritten as cos (x) . sin [tex](\frac{x + 5\pi }{4} )[/tex] .sin (x)
What is trigonometryTrigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles
Let find the common multiplier of sin
[tex](\frac{x + 5\pi }{4} )[/tex]sin (x), cos(x); cos (x) sin[tex](\frac{x + 5\pi }{4} )\\[/tex] sin (x)
Find the least common Multiplier of sin [tex](\frac{x + 5\pi }{4} )[/tex] sin (x) , cos (x)
Lowest common multiplier (LCM)
The LCM of a, b is the smallest multiplier that is divisible by both a and b
Factor sin [tex](\frac{x + 5\pi }{4 } )[/tex]sin ( x)
sin[tex]( \frac{x + 5\pi }{4} )[/tex]. sin(x)
Multiplier each factor with the highest power;
cos (x) .sin [tex](\frac{x + 5\pi }{4} )[/tex].sin (x)
Therefore, the trigonometry sin(x+5pi/4) in terms of sin(x) and cos(x) can be rewritten as cos (x) . sin [tex](\frac{x + 5\pi }{4} )[/tex] .sin (x)
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What is the following sum?
5(³3√x)+9(³√x)
0 14 (√x)
14 (2√x²)
0 14 (3√x)
0
X
The solution for the given expression is 14∛x. The correct option is (C).
What is an Algebraic expression?An algebraic expression can be obtained by doing mathematical operations on the variable and constant terms.
The variable part of an algebraic expression can never be added or subtracted from the constant part.
The given expression is as below,
5∛x + 9∛x
The given expression can be simplified as follows,
5∛x + 9∛x
Here, both the terms have equivalent variables. So, both are like terms.
As per the rules like terms can be added or subtracted keeping the variable as the same.
Thus, 5∛x + 9∛x = 14∛x
Hence, the given expression can be evaluated as 5∛x + 9∛x = 14∛x.
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Bilquis and her children went into a movie theater and she bought $60 worth of bags
of popcorn and pretzels. Each bag of popcorn costs $7.50 and each pretzel costs
$3.75. She bought 2 more bags of popcorn than pretzels. Graphically solve a system
of equations in order to determine the number of bags of popcorn, x, and the number
of pretzels, y, that Bilquis bought.
The number of bags of popcorn = 6
The number of pretzels = 4
Let the number of bags of popcorn = x
the number of pretzels = y
From the question, we have
she bought $60 worth of bags of popcorn and pretzels.
Each bag of popcorn costs $7.50 and each pretzel costs $3.75.
7.50x+3.75y = 60................(i)
She bought 2 more bags of popcorn than pretzels.
x-y = 2................(ii)
Solving equation (i) and (ii), we get
x = 6
y = 4
The number of bags of popcorn = 6
The the number of pretzels = 4
Addition:
The act of combining two or more items is known as addition. The process of computing the sum of two or more numbers in mathematics is called addition. It is a fundamental mathematical procedure that is frequently used in daily life. When we work with money, figure out our food bills, or figure out the time, we frequently employ addition. One-digit numbers can be added simply for solving addition problems, however for bigger numbers, we divide the numbers into columns using their corresponding place values, such as ones, tens, hundreds, thousands, and so on.
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suppose h(t)=(3t+5)/t and k(t)=5/(t-3). Show that h(t) and k(t) are inverse functions using algebra.
We will see that the functions are inverses by proving that the composition is equal to the identity.
How to show that h(t) and k(t) are inverse functions?Two functions are inverses if their composition is equal to the identity, this means that if h(t) and k(t) are inverses, then we can write:
h(k(t)) = t
and
k(h(t)) = t
Proving one of these will be enough.
Here the functions are:
h(t) = (3t + 5)/t
k(t) = 5/(t - 3)
Let's find h(k(t))
We will get:
h(k(t)) = (3*k(t) + 5)/k(t)
Now we can replace the function k(t) there.
h(k(t)) = (3*5/(t - 3) + 5)/(5/(t - 3))
Now we can simplify this using algebra.
h(k(t)) = ( 15/(t - 3) + 5)*(t - 3)/5
h(k(t)) = (15/(t - 3))*(t - 3)/5 + 5*(t - 3)/5
h(k(t)) = 3 + (t - 3) = t
h(k(t)) = t
So yes, the two functions are inverses.
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Juice A cost 0.10 more then per ounce than juice B. Ifa 12 ounce of juice A costs $564 what is the cost per ounce of juice B
bro I don’t know
1 ask your teacher
2 get sturdy
3
Express 602.16 dam in decimeters
The expression of 602.16 dam in decimeters can be written as 60216 decimeter.
How can the expression of 602.16 dam be converted to decimeters?The concept that will be used in the calculation is conversion. to perform this conversion, it is important to note that 1 Decimeter (dm) is equal to 0.01 dekameter (dam).
Then, if 1dm = 0.01 dam
Xdm = 602.16 dam
Where x is the value in decimeter.
Then we can cross multiply as :
X= (602.16 dam * 1dm)/ 0.01 dam
= 60216 decimeter.
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Which graph represents the function f(x) = |x − 1| − 3 ?
Answer:
See picture below.
Step-by-step explanation:
f(x) = |x|
This absolute value will have a v shape, the "v" point at (0,0)
Next,
f(x) = |x-1|
This (-1) moves the v shape one unit to the right, "a translation to the right by 1."
Finally,
f(x) = |x-1| - 3
This (-3) moves the v shape down 3 units. This is why the answer is the original
f(x) = |x|
except it's moved right by 1, and down by 3.
Step-by-step explanation:
The graph that represents is translated right by 1 units and 3 unit up to form. Hence, graph (a) is correct.
What is a function?
Function is a type of relation, or rule, that maps one input to specific single output.
The parent function of an absolute function is;
y = |x|
When a function is translated right by h units, the transformation rule by;
y = |x-h|
So:
|x-1|-3 means that it is translated right by 1 units
When a function is translated up k units, then the transformation rule is:
y = |x| + k
y = |x-1|-3
This means that it is translated right by 1 units and 3 unit up to form
Hence, graph (a) is correct
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The selling price of an item is a
function of the cost of
making the item. is it a function or not?
Yes, the selling price of an item is a function of the cost of making the item.
A function connects an input with an output. It is analogous to a machine with an input and an output. And the outcome is somehow connected to the input.
Cost is often the expenditure incurred for producing a product or service that a firm sells. The selling price is the amount paid by the buyer to purchase a product or products.
The selling price of an item is a function of the cost of creating the item since the manufacturer must sell at a price higher than the cost of making the item in order to recoup his investment and make a profit.
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what is 490 * 5 .
A. 98
B.
485
C.
5,560
D.
6,860
Answer:
None of the answers are right based on given context.
The product is 2,450.
Step-by-step explanation:
1) use the partial product method.
4 9 0
× 5
-------------------------------------
4 5 0 (5×90)
2 0 0 0 (5×400)
-----------------------------------------
2 4 5 0
2) Therefore 490 x 5 = 2,450.
2,450