The exponential function for to represent the balance of the account will be y = 14 ( 1.16) ˣ
We have that:
The saving account has initially = $ 14
After 1 year, the balance became = $ 16.24
After 2 years, the balance became = $ 18.84
Difference in the initial amount and amount after 1 year = $ 16.24 - $ 14 = $ 2.24
Difference in the amount after 1 year and amount after 2 years = $ 18.84 - $ 16.24 = $ 2.60.
An exponential function is defined as y = a ˣ where x is a variable, and a is a constant called the base of the function.
Here, the exponential function will be:
y = 14 ( 1.16) ˣ where x is the time period
Money after 20 years = 14 ( 1.16)²⁰ = $ 272.45
Therefore, we get that, the exponential function for to represent the balance of the account will be y = 14 ( 1.16) ˣ
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A function f is bounded above if there is some number B that f(x) can never exceed. The exponential function base e shown here is not bounded above. Is the logarithmic function base e bounded above? If so, find a bounding number. If not, explain why.
According to the question, the function f(x) is bounded with constant number. And the exponential function base e is not bounded. Similarly, logarithmic function base e is also not bounded.
Bounded values can be calculated with the help of asymptotes namely, vertical, horizontal and oblique. The vertical, horizontal and oblique asymptotes are constant values which grows the values of the function f(x) without bound.
A basic logarithmic function is a function with no horizontal shift as well as no vertical shift. All logarithmic function passes through a constant points and touches the horizontal axis which results into asymptotes. It either increases from left to right, or decreases from left to right.
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Amir has 3 jars of sweets jar a contains 205 sweets jar c contains 175 sweets jar a has the most sweets and jar c has the least number of sweets how many sweets could be in jar b expain how you know this
Answer:
Step-by-step explanation:
well jar b's amount of sweets must be between 205 and 175
Name the property of real numbers illustrated by the equation. 2. 3(3. 4. 12. 9)=(2. 3. 3. 4)(12. 9)
The property of real numbers illustrated by the given equation is associative property of multiplication.
Associative property states that the number in an equation can be grouped together in any way without the total value of the result changing. There are two types of associative property.
1. Associative property of addition which is given by:
(a+b)+c=a+(b+c)
2. Associative property of multiplication which is given by:
(ab)c=a(bc)
Associative property of multiplication states that the way factors are grouped in a multiplication equation does not change its product.
As the given equation 2. 3(3. 4. 12. 9)=(2. 3. 3. 4)(12. 9) contain multiplication operation, the property of real numbers illustrated is associative property of multiplication.
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Reasoning. If you multiply two decimals that are less than 1, can you predict wherer the product will be less than or greater than either of the factors? Explain.
The product is smaller than the factors of the product.
What can we predict about the product?Let's say that we have two real positive numbers A and B.
If we define 0 < A < 1
Then when we multiply A and B (a real positive number) we will have that:
A*B < B
So the value of B is decreased.
Now, if both numbers are in that range:
0 < A < 1
0 < B < 1
We will have that:
A*B < B
A*B < A
So the product is smaller than A and smaller than B, which are the factors of the product.
So the product is less than both of the factors.
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Work out m and c for the line: y = 2 x + 5
Answer:
m=2
Step-by-step explanation:
Suppose the path of the jump changes so that the axis of symmetry becomes. X=2 and the height stays the same. If the path of the jump also passes through the point (5,5) , what quadratic function would model this path?
The quadratic function of the jump is y = -0.22x^2 +0.89x + 6.11 if the jump changes so that the axis of symmetry becomes X=2 , the height stays the same 7 and also passes through the point (5,5)
Quadratic function involving vertex is given by
y = a(x-h)^2 + k
Where (h,k) is the vertex which is given as (2,7)
y = a(x-2)^2 + 7
y = a(x-2)(x-2) + 7
y = a(x^2 -4x +4) + 7
Recall that
h = -b/2a
k = -(b^2 -4ac)/4a
2 = -b/2a
-b = 4a
b = -4a
Put b = -4a
k = -(b^2 -4ac)/4a
7= -(b^2 -4ac)/4a
7 = -((-4a)^2 -4ac)/4a
7 = -(16a^2 - 4ac)/4a
7 = (-16a^2 + 4ac)/4a
7 = -4a + c
c = 7 + 4a
The path of the jump also passes through (5,5)
y = ax^2 + bx + c
5 = a5^2 + b5 + c
5= 25a +5b + c
Put b = -4a in above
5= 25a +5(-4a) + c
5= 25a -20a+ c
5 = 5a + c
Put c = 7 + 4a
5 = 5a + 7 +4a
Collect like terms
5-7 = 5a + 4a
-2 = 9a
a = -2/9
Put a in
y = a(x^2 -4x +4) + 7
y = -2/9(x^2 -4x +4) + 7
y = (-2x^2 +8x -8)/9 +7
Multiple through by 9
9y = -2x^2 +8x -8 + 63
9y = -2x^2 +8x + 55
Dividing through by 9
y = -0.22x^2 +0.89x + 6.11
Therefore the equation of the jump is
y = -0.22x^2 +0.89x + 6.11.
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select the correct answer. the distance versus time plot for a particular object shows a quadratic relationship. which column of distance data is possible for this situation?
column A is the correct answer.
The distance versus time plot for a particular object shows a quadratic relationship. Which column of distance data is possible for this situation? Time (s) A. Distance (m) B. Distance (m) C. Distance (m) D. Distance (m) E. Distance (m) 0 0 2.00 9.00 ‡ ‡ 1 1.00 4.00 18.00 1.00 1.00 2 4.00 6.00 27.00 0.50 0.25 3 9.00 8.00 36.00 0.33 0.11 4 16.00 10.00 45.00 0.25 0.06 5 25.00 12.00 54.00 0.20 0.04 6 36.00 14.00 63.00
A quadratic relation means one variable is proportional to the square of the other variable.
for this problem, distance and time will be proportional to the following equation
d = kt² or t = kd²
where k is a (constant).
when y look at column A closely. The numbers are all perfect squares: 1, 4, 9, 16...
This means d = kt² with k=1:
at t = 0, d = 1 x 0² = 0
at t = 1, d = 1 x 1² = 1
at t = 2, d = 1 x 2² = 4
at t = 3, d = 1 x 3² = 9
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Kyle did not study for the first math test of the school year on the first test the ratio of the number he got correct to the number he got incorrect was 3:5 he was not happy with his grade so he decided to study for the next test. On the second test, the ratio of the ratio of number of problems he got correct to the number he got incorrect was 6:2. How many problems did he get corrector the second test if he got 10 incorrect on the first test
The problems he got correct on the second test is 12.
How many answers did he get correct?
Ratio expresses the relationship between two or more numbers. It shows the the number of times that one value is contained within other value(s). Ratio is used to compare two or more numbers. The sign used to represent ratio is :
The first step is to determine the total number of questions on the math test : (sum of ratios x answers gotten incorrect on the first test) / ratio of the answers gotten incorrect
(8 x 10) / 5 = 16
Answers gotten correct on the second test : (ratio of correct answers / sum of ratios) x total number of questions
(6/8) x 16 = 12
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Is the point (-7, 1) a solution to the inequality y < 0.5x + 9? yes or no
The point (-7, 1) is in fact a solution for the inequality y < 0.5x + 9
Is the point (-7, 1) a solution to the inequality y < 0.5x + 9?
A point is a solution of a inequality only if it makes the truth value of the inequality true.
In this case, it would mean that the right side of the inequality is strictly larger than the left side.
So to check that, we just need to replace the values of the point on the inequality.
The values are x = -7 and y = 1, replacing that in the given inequality we will get:
1 < 0.5*(-7) + 9
1 < -3.5 + 9
1 < 5.5
This is true, 5.5 is larger than 1, then we conclude that the point (-7, 1) is in fact a solution for the inequality y < 0.5x + 9
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Please help again i'm stuck
Answer:
im jk wdf is this goodluck
For each function, find the inverse and the domain and range of the function and its inverse. Determine whether the inverse is a function.
f(x)= √x+7
The domain of the function {x ∈ R, x ≥ −7}
The inverse function would be [tex]f^{-1}(x)[/tex] = x² - 7
Range of the function be {y ∈R, y ≥ −7}
What is an inverse function's domain and range?The domain of a relation's inverse is the same as the range of the original relation.
In other words, the y-values of the relation are the inverse's x-values.
Domain of f(x) = {x ∈ R, x ≥ −7} and Range = {y ∈ R, y ≥ 0}
Domain of [tex]f^{-1}[/tex](x)= {x ∈ R}, Range = {y ∈ R, y ≥ −7}
The domain of the function would be all x, such that x+7 ≥ 0, or x ≥ −7. Hence it is {x∈ R, x ≥ −7}.
Consider the range of the function y = √x + 7.
Since √x+7 ≥ 0, it is obvious that y ≥ 0.
Range would be {y ∈ R, y ≥ 0}
The inverse function would be [tex]f^{-1}(x)[/tex] = x² - 7
The domain of the inverse function is all real x, {x ∈ R}
For the range of the inverse function solve y = x²-7 for x.
It would be x = √y+7.
⇒ y + 7 ≥ 0.
Hence, the range of the function be {y ∈R, y ≥ −7}
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I need help with a geometry triangle problem, the question is, find the value of x
Answer:
17
Step-by-step explanation:
We can tell this is a right angle (90 degrees) by the square drawn in the angle.
So this becomes a two-step equation.
4x+22=90
4x+22-22=90-22
4x=68
4x/4=68/4
x=17
4(5x+1)-3x
i need help solving this
Answer:
17x + 4
Step-by-step explanation:
Distribute: 4(5x + 1) - 3x
20x + 4 - 3x
Combine like terms: 20x + 4 - 3x --> 17x + 4
Hope this helps! :')
What is the quotient of (x³+2 x²-x+6) / (x+3) ?
(A) x²+5x+14
(B) x²-x+2
(C) x³+5x²+14x+42
(D) x²+x-2
The quotient of (x³+2 x²-x+6) / (x+3) is (B) x²-x+2.
What is the Polynomial long division method?Polynomial long division is an algorithm in algebra for dividing a polynomial by another polynomial of the same or lower degree, which is a generalized version of the well-known arithmetic technique known as long division. It is simple to do by hand because it divides an otherwise complex division problem into smaller ones. It is sometimes faster to use a shorthand version called synthetic division, which requires less writing and fewer calculations. Polynomial short division (Blomqvist's method) is another abbreviated method.So, find the quotient of (x³+2 x²-x+6) / (x+3) using the Polynomial long division method:
(x³+2 x²-x+6) / (x+3) ⇒ R = 0 ⇒ quotient = x²-x+2As, (x²-x+2)(x+3) gives (x³+2 x²-x+6).Therefore, the quotient of (x³+2 x²-x+6) / (x+3) is (B) x²-x+2.
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Ricardo went jet skiing while on vacation. The jet ski rental cost a flat rate of $25, plus $17.75 per hour. Ricardo had $102.17. How much did he have left after 3 hours of jet ski riding?
Answer:
Step-by-step explanation:
For 3 hours it cost him $78.25
25 + 17.75 + 17.75 + 17.75= 78.25
He had left from $102.17 subtract from $78.25 is $23.92
Answer:
23.92
Step-by-step explanation:
17.75x3=53.25
53.25+25=78.25
102.17-78.25=23.92
Simplify each rational expression. State any restrictions on the variables.
49-z² / z+7
According to the question, the given rational expression can be simplified and as shown below:
Rational expression = [tex]\frac{49-z^{2} }{z+7}[/tex]
To simplify the given rational expression, calculate the factors of the numerator as well as denominator. And later divide it from each other. These expressions are also called as polynomial expressions.
Rational expression = [tex]\frac{(7-z)(7+z)}{z+7} =\frac{(7-z)}{1} =7-z[/tex]
Therefore, final expression of the given equation is [tex]7-z.[/tex]
What is polynomial expression?
Polynomial expression are those equation whose highest degree is two. It is also called as quadratic equation. And it is simplified by performing the factors on the given expressions.
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Use the distributive property to remove the parentheses. 7(2-x)
Solve the inequality −3s+7 ≤ 8 or −2s+4≥12
Answer: B
Step-by-step explanation:
What is the answer to this problem ?
The correct option for showing the interval (-∞, -7) is Option C.
What is Interval?
An interval includes all the numbers that come between two particular numbers.
The given interval is (-∞, -7).
Now, On the number line (-∞, -7) is shown as;
The interval is open interval.
Hence, At point -7 the graph is in open circle.
And, The graph is going left side.
Hence, The correct option for showing the interval (-∞, -7) is Option C.
Which is shown in figure.
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Simplify m^9m^−3??? thanks need this answer asapppp
Answer:
[tex]\sf \bf m^6[/tex]
Step-by-step explanation:
Exponent law:In exponent multiplication, if bases are same, add the powers.
[tex]\sf \boxed{\bf a^m*a^n =a^{m+n}}[/tex]
[tex]\sf m^9 * m^{-3}=m^{9 +(-3)}[/tex]
[tex]\sf = m^{6}[/tex]
answer please will mark brainliest
The total surface area or surface area of the given sphere is 84.9 cm² rounded to 1 decimal place whose radius is 2.6cm
The total surface area or surface area of a sphere is given by the formula 4πr²
From the given figure it is clear that the radius of the sphere is 2.6cm
Here, we will use the value of π as 3.14 and not 22/7
So, Substituting the values in the formula of Total surface area of a sphere.
the total surface area =4 π (2.6)²
4 × 3.14 × 6.76
= 84.9056 cm²
Hence, the total surface area or surface area of the given sphere is 84.9056 cm² or 84.9 cm² rounded to 1 decimal place whose radius is 2.6cm
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4. Find the equation of a line that goes through the points (8, -9) and (-4, 15).
Answer:
Find the equation of a line that goes through the points (8, -9) and (-4, 15). ... with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (- 4, 15).
Step-by-step explanation:
source: gogle
Find the equation of a line that goes through the points (8https://brainly.com › Mathematics › Middle School ©
March 21, 2020 — Find the equation of a line that goes through the points (8, -9) and (-4, 15). ... with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (- 4, 15).
I Doublecheck it
For each function, find the inverse and the domain and range of the function and its inverse. Determine whether the inverse is a function.The formula for converting from Celsius to Fahrenheit temperatures is F=9/5 C+32 .
b. Use the inverse to find the Celsius temperature that corresponds to 25⁰F .
The formula for converting from Celsius to Fahrenheit temperatures is F = 9/5 C + 32 then the inverse function is one-to-one.
What is the inverse formula?The inverse function returns the original value for which the output of a function was given. When it comes to functions, f and g are inverse, with f(g(x)) = g(f(x)) = x. A function that is made up of its inverse returns the original value.
The formula for converting from Celsius to Fahrenheit temperatures is
F = 9/5 C + 32.
Let the Fahrenheit temperatures is F = 9/5 C + 32
Subtract 32 from both sides:
F - 32 = 9/5 C + 32 - 32
F − 32 = 9/5 C
Multiply both sides by 5:
5(F − 32) = 9C
Divide both sides by 9:
5/9 (F − 32) = C or C = 5/9 (F − 32)
For 27° F
⇒ C = 5/9 (27 - 32)
⇒ C = 5/9 (-5)
⇒ C = -25/9
⇒ -2.78 C° 2.dp.
Yes, the inverse is a one-to-one function.
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The equation the quantity 2x minus 10 divided by 4 = 3x models temperature change, where x represents the difference in degrees in the last 24 hours. solve for x. x = −10 x = −1 x = 2 x = 11
The value of x is -1. Option B
How to determine the valueFrom the information given, we have the equation as;
2x - 10/ 4 = 3x
Where;
the equation models temperature changex represents the difference in degreesLet's simplify the equation
cross multiply
2x - 10 = 3x × 4
2x - 10 = 12x
collect like terms
2x - 12x = 10
-10x = 10
Divide both sides by the coefficient of x
x = 10/ -10
x = -1
Thus, the value of x is -1. Option B
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Moshde runs a hairstyling business from her house. She charges $42 for a haircut and style. Her monthly expenses are $1040. She wants to be able to put at least $1,278 per month into her savings account order to open her own salon. How many "cut & styles" must she do to save at least $1,278 per month?
Moshde needs to carry out 55 cuts and style to save at least $1,278 per month
How to calculate the number of cuts required ?Moshde charges $42 per haircut and style
Her monthly expenses is $1040
She wants to save $1278
The number of cuts and styles required is
1040 + 1278 /42
= 2318/42
= 55.2
Hence Moshde need to make 55 cuts and style to save at least $1278 per month
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Simplify each radical expression. Use absolute value symbols when needed. ∛64 x⁶
The correct answer of the given expression is 4x².
A formula is a statement containing at least two numbers/variables and at least one mathematical operation. An expression is a combination of terms combined by mathematical operations such as subtraction, addition, multiplication, and division. The terms that appear in the formula are:Constant: A constant is a fixed number.Variables: Variables are symbols that do not have fixed values.Term: A term can be a single constant, a single variable, or a combination of variables and constants combined with multiplication or division.Coefficient: A coefficient is a number that is multiplied by a variable in an expression.It is given that ∛64 x⁶
On simplifying , we get
= ∛4³(x²)³
= 4x²
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Matthew has a points card for a movie theater. He receives 50 rewards points just for signing up. He earns 8.5 points for each visit to the movie theater. He needs at least 185 points for a free movie ticket
Which inequality can be used to determine v, the minimum number of visits Matthew needs to earn his first free movie ticket?
The inequality that can be used to determine v, the minimum number of visits Matthew needs to earn his first free movie ticket is 50 + 8.5v >= 185.
How to illustrate the information?From the information, Matthew has a points card for a movie theater, he receives 50 rewards points just for signing up and earns 8.5 points for each visit to the movie theater.
Since he needs at least 185 points for a free movie ticket, the inequality will be:
50 + 8.5v >= 185
where v = the minimum number of visits Matthew needs to earn his first free movie ticket.
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A square has an area of 90 square inches. Which two consecutive integers does a side length of the square fall between?
The two consecutive integers in which the side length of the square fall between is 9 and 10
The formula for the area of a square is given as follows:
A = (s)²
where A = area of square
s = length of side of a square
According to the question we have been given that
the area of square = 90 inch²
Now putting the required values in the formula of area we get
(s)² = 90
Taking square root both sides we get
s = √90
As 90 is not a perfect square but it lies between two perfect squares which are 81 and 100.
As √81 = 9 and √100 = 10
Now, √81 ≤ √90 ≤ √100
⇒ 9 ≤ √90 ≤ 10
Hence two consecutive integers such that the side length of the square fall between is 9 and 10
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A basketball team has won 0.625 of its games. If the team has played 24 games, how many games has the team won?
Answer:
It has won 15 games.
Step-by-step explanation:
24*.625=15
Let f(x)=x+5 and g(x)=x²-25 . What is the domain of f/g(x) ?
(A) All real numbers (B) All real numbers except 5 (C) All real numbers except -5 (D) All real numbers except -5 and 5
A composite function exists as a function that depends on another function. The value for f/g(10) is 1/5
What is meant by composition function?In mathematics, function composition exists as an operation ∘ that takes two functions f and g, and has a function h = g ∘ f such that h(x) = g. In this operation, the function g exists used to the result of applying the function f to x.
Function composition is a mathematical procedure where two functions, f, and g, are taken and a function, h = g ∘ f, is produced such that h(x) = g(f(x)). The function g exists used in this operation on the outcome of applying the function f to x.
Let the two functions be f(x) = x+5 and g(x) = x²-25
A function exists described as a relationship between one variable and another variable.
(f/g)(x) = f(x)/g(x) = (x+5) / (x²-25)
The domain of a function exists the set of all possible inputs for the function.
When the denominator is zero, the function remains undefined.
Hence, x cannot take the values 5 and -5.
The function (f/g)(x) is defined for all values of x except x = 5, -5.
Hence, the domain is all integers except x = 5, -5
⇒ (f/g)(10) = (10 + 5) / (100 - 25)
simplifying the above equation, we get
⇒ (f/g)(10) = (15) / (75)
⇒ (f/g)(10) = 1/5
Therefore, the value of (f/g)(10) is 1/5.
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