when dividing exponents of like bases, subtract
2^12
it is the 12th power of 2, so the answer is 12
Victoria has $200 of her birthday gift money saved at home, and the amount is modeled by the function h(x) = 200. She reads about a bank that has savings accounts that accrue interest according to the function s(x) = (1.05)x−1. Explain how Victoria can combine the two functions to model the total amount of money she will have in her bank account as interest accrues after she deposits her $200. Justify your reasoning.
WILL GIVE BRANLIEST
Solution :
Amount of money Victoria has = $200
The amount modelled by function = h(x) = 200
According to the function,
s(x) = (1.05)x - 1
It means that the total amount of the interest that Victoria will receive s(x) is equal to original amount of $200 which multiplied by the rate of interest (1.05) and then multiplied by the time that Victoria keeps the money in the bank (x) minus 1.
The total amount of money she will have in her bank account as interest accrues after she deposits her $200 is 200 \((1.05)^{x-1}\)
Exponential functions
THe standrd exponential function is exprressed as:
y = a(1±r)^t
Given the following parameters
h(x) = a = 200
s(x) = \((1.05)^{x-1}\)
Combining both expressions will given 200 \((1.05)^{x-1}\)
Hence the total amount of money she will have in her bank account as interest accrues after she deposits her $200 is 200 \((1.05)^{x-1}\)
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Solve this t2/t1=(p2/p1)^(n-1/n)!
To solve for t2 in the equation t2/t1=(p2/p1)^(n-1/n), we can cross-multiply to get t2=(p2/p1)^(n-1/n) * t1.
In the given equation, t2/t1 represents the ratio of two temperatures, while (p2/p1)^(n-1/n) is a ratio of pressures raised to a power. The exponent of (n-1/n) in the equation represents the ratio of specific heats, which is a constant value for a given gas. Thus, we can rewrite the equation as t2/t1= (p2/p1)^k, where k = (n-1/n).
To solve for t2, we can multiply both sides of the equation by t1, which gives us t2= (p2/p1)^k * t1.
Therefore, the equation to solve for t2 is t2= (p2/p1)^(n-1/n) * t1.
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What is the area of the rectangle: (2x+5)(x+y+2)
Answer:
Step-by-step explanation:
Area of a rectangle = (l*b)
= (2x+5)(x+y+2)
= 2x*x + 2x*y + 2x*2 + 5*x + 5*y + 5*2
= 2x^2+2xy+9x+5y+10
Hope you understood!!
Answer:
2x² + 2xy + 9x + 5y + 10 units²
Step-by-step explanation:
The formula for area of rectangle is Length x Base.
We need to expand the given equation.
(2x + 5) (x + y + 2)
First, multiplying 2x with x, y & 2, we get,
2x² + 2xy + 4x. ------ (1)
Now, multiplying 5 with x, y & 2, we get,
5x + 5y + 10. ------- (2)
Adding 1 and 2,
=> 2x² + 2xy + 4x + 5x + 5y + 10
=> 2x² + 2xy + 9x + 5y + 10 units²
Hope it helps :)
Which polynomial represents (3x2 + x - 4)(2x - 5)?
A.6x3 + 13x2 + 3x - 20
B.6x3 - 13x2 - 13x + 20
C.6x3 + 13x2 + 3x + 20
D6x3 - 13x2 - 13x - 20
The required value of the given expression is 6x3 - 13x2 - 13x + 20. Option B is correct.
What is a polynomial function?A polynomial function is a function that applies only integer dominions or only positive integer powers of a value in an equation such as the monomial, binomial and trinomial, etc. ax+b is a polynomial.
here,
= (3x² + x - 4)(2x - 5)
= [6x³-13x² - 13z + 20]
Thus, the required value of the given expression is 6x3 - 13x2 - 13x + 20. Option B is correct.
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Timothy is at an elevation of –17.65 meters below sea level. He descends by 3
meters to observe a coral. What is his new elevation relative to sea level?
In rectangle QRST , QS=30-2x and RT=9+x . Find the lengths of the diagonals of QRST
Answer:
Each of the diagonals is 16
Step-by-step explanation:
The diagonals of a rectangular are equal
The two diagonals are QS and RT
QS = RT
→ 30 - 2x = 9 + x
Subtract 30 both sides:
30 - 30 - 2x = 9 - 30 + x
- 2x = -21 + x
Subtract x both sides
-2x - x = -21 + x - x
-3x = -21
x = -21/-3 = 7
So the diagonal RT = 9 + 7 =16
should be the same as diagonal QS
Qs = 30 - 2(7) = 30 - 14 = 16
what is the mode of the number of girl in the three classes?
There is no mode of the number of girl in the three classes.
What is Mode of the Data?The value that appears the most frequently in a data collection when it is unique is known as the mode, and like the median and mean, it can be used to measure central tendency. However, occasionally there is either no mode or more than one mode.
Given:
The data for boys: 15, 12, 12
The data for Girls: 14, 12, 16
As, mode is the most repeating data.
We can see that the data repeats in boys but not for the Girls.
So, number of boys have the mode but the number of girls do not have the mode.
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Which expression is equal to the polynomial below? 2x4 + 5x3 – 8x – 20
x3(2x + 5) + 4(2x – 5)
x3(2x + 5) – 4(2x + 5)
x3(2x – 5) – 4(2x – 5)
x3(2x + 5) + 4(2x + 5)
Answer:
x3(2x5)-4(2x5
Step-by-step explanation:
Hope that helps
Answer:
B) x3(2x + 5) – 4(2x + 5)
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EDGE2022; Good Luck :3!!!
what is the value of repeating decimal 0.5 + 0.2 as a fraction
Answer:
7/10
Step-by-step explanation:
What is the sum of all the number cards in a deck of 52 playing cards?
Step-by-step explanation:
The deck of 52 playing cards is broadly classified into 2 which are further divided into 2 divisions.
Red(26 cards) and Black(26 cards).
The red cards are further divided into diamonds♦️ (13 cards) and hearts♥️ (13 cards).
The black cards are further divided into clubs ♣️(13 cards) and spades ♠️ (13 cards).
In each division of 13 cards classified above, there are/is-
3 face cards- King, Queen, Jack
One ace card
9 number cards(numbered from 2–10)
Gabe goes to the mall. If k is the number of items he bought, the expression 18.58k+30 gives the amount he spent in dollars at one store. Then he spent 22 dollars at another store. Find the expression which represents the amount Gabe spent at the mall. Then estimate how much Gabe spent if he bought 3 items.
The expression which represents the amount Gabe spent at the mall will be 18.58k + 52.
The amount that Gabe spent if he bought 3 items will be $107.74.
How to calculate the expression?From the information, Gabe goes to the mall. If k is the number of items he bought, the expression 18.58k+30 gives the amount he spent in dollars at one store and he spent 22 dollars at another store.
The expression which represents the amount Gabe spent at the mall will be:
= 18.58k + 30 + 22
= 18.58k + 52
The amount that Gabe spent if he bought 3 items will be:
= 18.58k + 52
= 18.58(3) + 52
= $107.74
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how much more money will you make if you invest $740 at 5.1% interest compounded contiuously for 12 years than if he same amount was invested at 5.1% compounded daily for the same amount of time?
The amount of money we can make is $0.05.
We have,
P= $710
R= 5.1%
T= 12 year
Compounded Continuously:
A = P\(e^{rt\)
A = 710.00(2.71828\()^{(0.051)(12)\)
A = $1,309.32
Compounded Daily:
A = P(1 + r/n\()^{nt\)
A = 710.00(1 + 0.051/365\()^{(365)(12)\)
A = 710.00(1 + 0.00013972602739726\()^{(4380)\)
A = $1,309.27
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In the diagram below, \triangle EFD\sim \triangle GHD△EFD∼△GHD. Which ratio is equivalent to tan FF?
The equivalent ratio to tan F in right angles triangle, △EFD is tan F = DE / DF.
Explain about the similar triangles?Identical triangles differ in size but have the same shape. Corresponding angles are identical in similar triangles. Similar triangles have corresponding sides that have the same ratio. The ratio of a square of any two of their corresponding sides to any identical triangle's area is the same.For the stated question:
△EFD∼△GHD
So, in right angles triangle, △EFD
Sin Ф = perpendicular / hypotenuse.
Sin E = DF / EF
And,
The ratio is equivalent to tan F = perpendicular / base
tan F = DE / DF
Thus, the equivalent ratio to tan F in right angles triangle, △EFD is tan F = DE / DF.
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The complete question is attached:
Which of the following sets of ordered pairs does not represent a function?
Answer:
d
Step-by-step explanation:
The total receipts for a basketball game is $1,400 for 788 tickets sold. Adults pay $2.50 and students pay $1.25. How many tickets of each kind were sold
Total tickets of a basketball game sold to students are 332 and total tickets sold to adults are 456.
Total number of sold tickets for a basketball game = 788
Total receipts for game = $1,400
Price of game tickets for an adults = $2.50/ticket
Price of game tickets for student = $1.25/ ticket
let us assume that total tickets sold to adults be "x".
Out of 788 , total tickets sold to students = 788 - x
Total money paid by adults = $2.50x
Total money paid by students = $1.25(778 - x)
Total money paid by adults and students will be equal to ($2.50x + $1.25(788 - x) ).
Total receipts for game is $1,400, so
$2.50x + $1.25(788 - x) = $1,400
which is a linear equation of one variable.
Now, we have to solve this equation
2.50x + 1.25×788 - 1.25x = 1,400
=> 1.25x + 985 = 1400
=> 1.25x = 1400 - 985 = 415
=> x = 415/1.25 = 332
So, total tickets sold to adults are 332 . Then,
total tickets sold to students = 788 - 332 = 456.
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hey! i’ll give brainliest please help
Answer: Its the first one
Choose all the number sentences that have a difference greater
than 19,780.
A) 78,546 - 60,015
B) 25,972 - 5,988
C) 43,568 - 22,185
D) 24,560 - 5,000
E) 99,756 - 45,875
Answer:
B., C., E.
Step-by-step explanation:
A) 78546 - 60015 = 18531
B) 25972 - 5988 = 19984
C) 43568 - 22185 = 21383
D) 24560 - 5000 = 19560
E) 99756 - 45875 = 53881
What is the value of x in the solution to this system of equations?
y + 2x = -1
y=x+4
F.3
G65
H.-10/3
J.-2
The value of x in the solution to this system of equations y + 2x = -1 and y=x+4 is 3.
Define elimination method.The elimination approach involves taking one variable out of the system of linear equations by utilizing addition or subtraction together with multiplication or division of the variable coefficients. To create an equation in one variable using the elimination approach, you can either add or subtract the equations. To eliminate a variable, add the equations when the coefficients of one variable are in opposition, and subtract the equations when the coefficients of one variable are in equality.
Given,
Equations:
y + 2x = -1
y = x + 4
y - x = 4
Using elimination method,
y + 2x = -1
y - x = 4
-------------
x = 3
The value of x in the solution to this system of equations y + 2x = -1 and y=x+4 is 3.
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A researcher wishes to estimate the population proportion of adults who are confident in the U.S. banking system. He wishes to estimate the proportion to within 5% with 95% confidence. How many adults should be included in the sample? A. 384 B. 385 C. 73 D. 1537 E.
Rounding up to the nearest whole number, the sample size needed is approximately 385. Therefore, the correct answer is B.
To determine the sample size needed to estimate a population proportion with a desired level of confidence and margin of error, we can use the formula:
n = (Z^2 * p * (1-p)) / E^2
Where:
n = sample size
Z = Z-score corresponding to the desired level of confidence (in this case, 95% confidence corresponds to a Z-score of approximately 1.96)
p = estimated proportion of adults confident in the U.S. banking system (unknown, but we can assume 0.5 to be conservative)
E = margin of error (5% expressed as a decimal, so E = 0.05)
Using these values, we can calculate the sample size:
n = (1.96^2 * 0.5 * (1-0.5)) / 0.05^2
n ≈ 384.16
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Find the measure of x.
16
X
38°
x = [?]
Round to the nearest hundredth.
The answer is.........
25.99
solve for x please help asap! will give brainlest
Answer:
80+60+3x+4=180
140+3x+4=180
144+3x=180
3x=180-144
3x=36
x=12
Answer:
x = 12
Step-by-step explanation:
All triangles equal to 180 degrees so, we can set up this expression:
180 = (3x + 4) + 80 + 60
All we have to do is solve:
180 = (3x + 4) + 80 + 60
180 = 3x + 4 + 140
180 = 3x + 144
-144 -144
36 = 3x
/3 /3
12 = x
Write an equation in slope intercept form of the line that passes through the points (12, 15) and (9, 6). Show all work!!
PlSSSS HELPPPPP WORTH 60 POINTSS!
Answer:
2/5
Step-by-step explanation:
Answer:
y = 3x -21
Slope intercept form: y = mx + b
m (slope) = 3
B = - 21
Stay safe and Merry Christmas! :)
the original price of a jacket was $74.00 .A store manager marked the price down by
25 1/2% . By how much was the price reduced?
Gerry made a number line for a homework problem,
P
A
C D
Which point is opposite Point P?
O Point A
O Point B
Point
O Point D
Answer:
The answer is point C
Step-by-step explanation:
Point C is the opposite of point P
Answer: C
Step-by-step explanation:
Which has a greater slope, a horizontal line or a vertical line?
Answer:
A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0).
Answer:
A horizontal line has a greater slope than a vertical line
T/F the square root of a number will always have two outcomes one is positive and the other is negative.
we have only one outcome that is neither positive nor negative, then the statement is false.
What is square root?
A value known as the square root of a number is one that, when multiplied by itself, yields the original number. An alternative to square rooting a number is to use it. Therefore, the concepts of squares and square roots are connected. The original number is equal to the square root of any integer, which is equivalent to a number.
Let's assume that m is an integer that is positive, such that (m.m) = (m2) = m.
This seems to be true because:
-2*-2 = 2*2 = 4
So √4 = 2 and -2
But particularly the square root of zero is:
√0 = 0
So here we have only one outcome that is neither positive nor negative, then the statement is false.
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Which is a solution to the equation?
(x -2)(x+5)=18
a. x=-10
b. x=-7
c. x=-4
d. x=-2
Given statement solution is :- Among the options provided, the correct solution to the Quadratic equation is:
b. x = -7
To find the solution to the equation (x - 2)(x + 5) = 18, we can start by expanding the equation:
(x - 2)(x + 5) = 18
\(x^2\) + 5x - 2x - 10 = 18
\(x^2\) + 3x - 10 = 18
Now, we can rearrange the equation to bring all terms to one side:
\(x^2\) + 3x - 10 - 18 = 0
\(x^2\)+ 3x - 28 = 0
To solve this quadratic equation, we can factor it or use the quadratic formula. Factoring may not be straightforward in this case, so we'll use the quadratic formula:
\(x = (-b ± √(b^2 - 4ac)) / (2a)\)
In this equation, a = 1, b = 3, and c = -28. Plugging these values into the quadratic formula, we get:
\(x = (-3 ± √(3^2 - 4 * 1 * -28)) / (2 * 1)\)
x = (-3 ± √(9 + 112)) / 2
x = (-3 ± √(121)) / 2
x = (-3 ± 11) / 2
We have two possible solutions:
x = (-3 + 11) / 2 = 8 / 2 = 4
x = (-3 - 11) / 2 = -14 / 2 = -7
Among the options provided, the correct solution to the Quadratic equation is:
b. x = -7
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Determine whether the binomial (x-4) is a factor of the polynomial p(x) = 5x³ - 20x² - 5x+ 20-
Step-by-step explanation:
IF x-4 is a factor, then putting in x = + 4 will make the polynomial = 0
5 ( 4^3) - 20 (4^2) - 5(4) + 20 = 0 Yes...it is a factor
\(x - 4 = 0 \\ x = 4 \\ \)
substitute value of x in the function to see if it equals to zero , if not it won't be a factor of the function
\(5 {x}^{3} - 20 {x}^{2} - 5x + 20 = 0 \\ 5(4) ^{3} - 20( {4})^{2} - 5(4) + 20 = 0 \\ 5(64) - 20(16) - 20 + 20 = 0 \\ 320 - 320 - 20 + 20 = 0 \\ 0 = 0\)
so (x-4) is a factor for the function
If A is n by n and Ax=b has a solution for every b in Rn why must A be invertible?
If A is an n by n matrix and Ax = b has a solution for every b in R^n, A must be invertible because it meets the necessary conditions for invertibility. In this case, A has full rank (n linearly independent columns), and its column space spans R^n.
As a result, the matrix A has a unique inverse, denoted as A^(-1), that satisfies the equation A^(-1)A = I, where I is the identity matrix. This unique inverse allows for the existence of a unique solution to the equation Ax = b for every b in R^n.
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Which shows the correct solution of the equation + so, when 6-30?
Answer:
-24
Step-by-step explanation:
rest 6 minus 30 and it give you -24