Answer:
3 8/33
Step-by-step explanation:
You want the mixed-number equivalent of the repeating decimal 3.2424....
Repeating decimalA repeating decimal fraction that starts at the decimal point can be converted to a ratio of integers by expressing the repeating digits over the same number of 9s.
Here, the two repeating digits "24" mean the fraction equivalent is ...
0.2424... = 24/99 = 8/33
The mixed number equivalent of 3.2424... is 3 8/33.
__
Additional comment
If the repeating portion does not start at the decimal point, you can use the following technique to do the conversion.
Multiply the original number by 10^n, where n is the number of repeating digits.Subtract the original number from this product. Repeating digits should cancel to zeros.Divide this difference by (10^n) -1 and simplify the resulting fraction.Effectively, this multiplies and divides the number by ((10^n) -1)/((10^n) -1). In the case here, that would be multiplication by 1 in the form 99/99.
3.242424... × 99/99 = 321/99 = 3 8/33
The "321" will be manifested on a calculator as 320.99999.... If you multiply by (100 -1) with pencil and paper, you can see that you get ...
324.2424... - 3.2424... = 321 . . . . . . repeating digits cancel
If the repeat starts somewhere else, you can still use the "fraction with equal number of 9s" technique, but with a multiplier:
3.6242424... = 3.6 + 0.0242424 ... = 3.6 + (1/10)(24/99)
= 36/10 + 8/330 = 3 103/165
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3.242424... as a mixed number is [tex]\(3 \frac{8}{33}\)[/tex].
To express the repeating decimal 3.242424... as a mixed number, we can first write it as an infinite geometric series.
Let x = 3.242424.... Then, multiplying x by 100 gives 100x = 324.242424...
Now, subtract x from 100x:
100x - x = 324.242424... - 3.242424...
99x = 321
Now, solve for x:
[tex]\[ x = \frac{321}{99} \][/tex]
Now, express the fraction [tex]\(\frac{321}{99}\)[/tex]as a mixed number.
[tex]\[ \frac{321}{99} = 3 \frac{24}{99} \]\\Now, simplify the fraction:\[ \frac{24}{99} = \frac{8}{33} \][/tex]
So, 3.242424... as a mixed number is [tex]\(3 \frac{8}{33}\)[/tex].
What equation results from completing the square and then factoring x^2+16x =41
A. (x+8)^2 =57
B.(x+16)^2 =57
C. (x+8)^2 =105
D. (x+16)^2 =105
C
given x² + 16x = 41
to complete the square on this equation
since the coefficient of the x² term is 1
add (half the coefficient of the x-term )² to both sides
x² + 2(8)x + 64 = 41+ 64
(x + 8 )² = 105 → C
Answer:
Option C is correct
Step-by-step explanation:
Given the equation
[tex]x^2+16x=41[/tex]
we have to find the equation results from completing the square.
For completing the square method, since the coefficient of [tex]x^2[/tex] is 1 therefore we have to divide the coefficient of x by 2 and then squaring of that value adding on both sides of equation, we get
Here coefficient of x is 16 therefore square of half the number adding both sides
[tex]x^2+16x+64=41+64[/tex]
[tex]x^2+8x+8x+64=105[/tex]
[tex]x(x+8)+8(x+8)=105[/tex]
[tex](x+8)(x+8)=105[/tex]
[tex](x+8)^2=105[/tex]
Option C is correct
Use the polynomial remainder theorem to evaluate the polynomial for the given value.
f(x)=3x^3−2x^2−3x+18
What is the value of f(1) ?
f(1) = 16
to evaluate f(1) substitute x = 1 into f(x)
f(1) = 3 - 2 - 3 + 18 = 16
When 3x³ - 2x² - 3x + 18 is divided by (x - 1 ) the remainder is 16
HURRY 30 PTS
What is the equation of the graphed line written in standard form?
A. 3x + y = –5
B. x + 3y = –5
C. 3x – 5y = –15
D. 5x – 3y = 15
D
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
to calculate m use the gradient formula
m = ( y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (3, 0 ) and (x₂, y₂ ) = (0, - 5 )
m = [tex]\frac{-5-0}{0-3}[/tex] = [tex]\frac{5}{3}[/tex]
line crosses y-axis at (0, - 5 ) hence c = - 5
y = [tex]\frac{5}{3}[/tex] x - 5 ← in slope-intercept form
the equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
rearrange slope-intercept form into standard form
multiply all terms by 3
3y = 5x - 15 ( subtract 3y and add 15 to both sides )
5x - 3y = 15 ← in standard form → D
Answer:
its d on edgunity
Step-by-step explanation:
Courtney would like to buy a new ca in 4 years. It is estimated that a new car will cost her 25,000 and that she will get 13,000 for her used car provided she takes good care of it. Based on these estimates, what is the least amount she should save each month in order to pay cash for her new car?
4 years=48 months
A new car costs 25,000, but she will get 13,000 for her used car as long as she takes good car of it. If she takes good care of her used car and gets 13,000 for it, she will only need to save 12,000 total. We can divide 12,000 by 48 to find out how much Courtney should save minimum each month to afford her new car. 12,000/48=250
You can check to see if this is correct by multiplying 48*250=12,000. Paying 250 for each month of the 48 months will equal the $12,000 that Courtney needs.
Courtney needs to save at least $250 per month to afford her new car in 4 years.
I hope this helps :)
Courtney should save at least $250 per month for the next 4 years to be able to pay cash for the new car after considering the amount she'll receive from selling her used car.
Courtney needs to save money to buy a new car in 4 years. The estimated cost of the new car is $25,000, and she expects to get $13,000 for her used car. To find out the least amount she should save each month, we will subtract the expected amount from the sale of her used car from the cost of the new car, and then divide by the number of months in 4 years (48 months).
The calculation is as follows:
Total amount needed = Cost of New Car - Sale of Used Car
= $25,000 - $13,000
= $12,000
Monthly savings required = Total amount needed \/ Number of months
= $12,000 \/ 48
= $250
Therefore, Courtney should save at least $250 per month to pay cash for her new car in 4 years.
I am F years old and my brother is B years older. What is the sum of our ages? What will be the sum of our ages in three years? What was the difference of our ages two year ago
a) The sum of your ages is F + (F+B) = 2F+B.
b) In 3 years, the sum of your ages will be (F+3)+(F+B+3) = 2F+B+6.
c) The difference of your ages at any time is B.
Answer:
a) The sum of your ages is F + (F+B) = 2F+B.
b) In 3 years, the sum of your ages will be (F+3)+(F+B+3) = 2F+B+6.
c) The difference of your ages at any time is B.
Suppose the roots of a polynomial are 3 4 , − 7 8 , − 3 8 , and − 1 9 . Which choice is a factor of the polynomial?
A) (x +3/4)
B) (x + 3/8)
C) (x - 7/8)
D) (x - 1/9)
Answer:
x+7/8
Step-by-step explanation:
A polynomial has roots at the points where the curve cuts the x axis.
This can also be said as values of x for which the polynomial is 0
Given that when x =a is root means, we have x-a is the factor.
Based on the above, we find when 3/4, -7/8, -3/8 and -1/9 are roots
factors are x-3/4, x+7/8, x+3/8, x+1/9
Hence answer is
B) (x + 3/8)
The other options do not match with the factors only option Bmatches.
Answer: The factor of the polynomial is [tex](x+\frac{3}{8})[/tex]
Step-by-step explanation:
We are given:
4 roots of the polynomial
Root 1: [tex]\frac{3}{4}[/tex]
The factor for this root becomes: [tex](x-\frac{3}{4})[/tex]
Root 2: [tex]\frac{-7}{8}[/tex]
The factor for this root becomes: [tex](x+\frac{7}{8})[/tex]
Root 3: [tex]\frac{-3}{8}[/tex]
The factor for this root becomes: [tex](x+\frac{3}{8})[/tex]
Root 4: [tex]\frac{-1}{9}[/tex]
The factor for this root becomes: [tex](x+\frac{1}{9})[/tex]
Hence, the factor of the polynomial is [tex](x+\frac{3}{8})[/tex]
How are percent error and percent change similar
How many whole numbers are there, whose squares and cubes have the same number of digits?
There are the following numbers for which that holds:
{-4, -2, -1, 0, 1, 2, 4}
See table below. For larger than 5 it can be proved that the number of digits will never be the same.
x x^2 x^3
0 0 0
1 1 1
2 4 8
4 16 64
Answer:
the answer if 4 numbers
(sorry i dont have an explenation i litterally guessed it when I entered it in the RSM portal.)
Step-by-step explanation:
Write a number that is 100 times smaller than 7,000
Solve the inequality:
|x+3|<1
This can be "unfolded" to ...
... -1 < x+3 < 1
Subtracting 3 gives the solution:
... -4 < x < -2
You are selling raffle tickets to raise money. Each ticket costs $5. Which equation solves for the number of tickets you must sell to raise $45?
A) 45-5=x
B) x/4=45
C) 45=5+x
D) 5x=45
D. 5x = 45 because you are trying to find x, the number of tickets that must be sold to earn $45.
Answer:
5x=45
Step-by-step explanation:
What happens if the correlation coefficient equals 0? A. There is a strong negative linear relationship between x and y. B. There is not a linear relationship between x and y. C. There is a strong positive linear relationship between x and y. D. There is a weak negative linear relationship between x and y.
The appropriate choice for the interpretation of a correlation coefficient of 0 is ...
... B. There is not a linear relationship between x and y.
Answer:
B.
There is not a linear relationship between x and y.
Step-by-step explanation:
PLATO fam
Graph the function f(x)=x2.
Plot the vertex. Then plot another point on the parabola. If you make a mistake, you can erase your parabola by selecting the second point and placing it on top of the first.
Graph [tex]f(x) = x^2[/tex]
quadratic function is of the form [tex]f(x) = ax^2 + bx +c[/tex]
In our f(x) there is no x term and constant so we put 0
[tex]f(x) = 1x^2+0x+0[/tex]
The value of a=1 , b=0 and c=0
To find vertex , use formula [tex]x= \frac{-b}{2a}[/tex]
Plug in the values
[tex]x= \frac{-0}{2(1)}[/tex] =0
Now plug in x=0 in f(x) equation
[tex]f(x) = x^2[/tex]
[tex]f(0) = 0^2[/tex]=0
So vertex is (0,0)
Now we pick some number for x below and above 0
Make a table
x y=x^2
-2 4
0 0
2 4
Now plot all the points (-2,4) (0,0) and (2,4)
The graph is attached below
⦁ Holly, Tyler, and their parents go shopping for some items to update their 3 bedrooms. They have exactly $325 that they can spend. They have the following items in their cart: 3 packages of curtains, 3 bedspreads, 3 gallons of paint, and 3 lamp shades. Complete the following to find out if they have enough money to purchase these items and, if they do, how much they will have left over.
⦁ If a package of curtains cost $24.50, what is the cost of the 3 packages of curtains in the cart?
⦁ If a bedspread costs $39.95, what is the cost of the 3 bedspreads in the cart?
⦁ If a gallon of paint costs $24.96, what is the cost of the 3 gallons of paint in the cart?
⦁ If a lamp shade costs $9.99, what is the cost of the 3 lamp shades in the cart?
⦁ Find the total cost of all the items in the cart. Then, find the amount of money the family has left, if any, from the $325.
PLS PLEASE HELP ME!!!!!!!ASAP!!!!!!????
Curtains:
$24.50 x 3 = $73.50
Bedspread:
$39.95 x 3 = $119.85
Gallon of paint:
$24.96 x 3 = $74.88
Lamp shade:
$9.99 x 3 = $29.97
The cost of all the items:
$73.50 + $119.85 + $74.88 + $29.97 = $298.20
How much money is left:
$325 - $298.20 = $26.80
So the family has $26.80 left.
Hope this Helps!!
13x + 5 + 17x -4.5 + x explain why this is wrong show your
18x + 17x - 4.5 + x work
35x - 4.5 + x
30.5x + x
31.5x
The answerer is combining terms in x with constants
that is, 13x + 5 ≠ 18x
13x + 5 + 17x - 4.5 + x
= (13x + 17x + x ) + 5 - 4.5 ← collecting like terms
= 31x + 0.5 ← correct simplification
combining terms in x with constants
13x + 5 ≠ 18x
13x + 5 + 17x - 4.5 + x
= (13x + 17x + x ) + 5 - 4.5 <--- collecting like terms
= 31x + 0.5 <--- correct simplification
Angelo, age 40, is comparing the premium for a $125,000 whole life insurance policy he may take now and the premium for the same policy taken out at age 45. Using the table, find the difference in total premium costs over 20 years for this policy at the two age levels. a. $69,375 b. $11,725 c. $12,875 d. $644
Policy value over 20 years = 125000
Per year, 125000/20=$6250
Look up premium table for age 40 and 45, the difference in total premium is C. $12,875.
To find the difference in total premium costs over 20 years for a whole life insurance policy at two age levels, calculate and subtract the total premium at each age.
Explanation:To find the difference in total premium costs over 20 years for the whole life insurance policy at the two age levels, we need to calculate the total premium at each age and then subtract the two values.
For Angelo at age 40, the value of the policy is $125,000. Let's assume the premium rate is x. So, the total premium at age 40 is 20 * x. For Angelo at age 45, the value of the policy is still $125,000. Let's assume the premium rate is y. So, the total premium at age 45 is 15 * y. To find the difference in total premium costs over 20 years, subtract the total premium at age 45 from the total premium at age 40: 20 * x - 15 * y.Therefore, the difference in total premium costs over 20 years for this policy at the two age levels is 20 * x - 15 * y.
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Which inequality correctly compares two of these times? A) 54.05 > 54.15 B) 54.5 < 54.1 C) 54.15 > 54.05 D) 54.1 < 54.05
c is right answer because 54.15 is bigger than 54.05
In comparing decimal numbers using inequalities, choice C (54.15 > 54.05) is correct. The other three options incorrectly compare the numbers.
Explanation:The question is asking us to compare two different decimal numbers using inequalities. Inequalities in mathematics are used to show the order of numbers, illustrating which is greater or less than the other.
Let's look at each option:
A) 54.05 > 54.15 - This is incorrect because 54.05 is less than 54.15.B) 54.5 < 54.1 - This is incorrect because 54.5 is actually greater than 54.1.C) 54.15 > 54.05 - This is correct because 54.15 is indeed greater than 54.05.D) 54.1 < 54.05 - This is incorrect because 54.1 is greater than 54.05.Therefore, the choice C correctly compares the two decimal numbers using inequalities.
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4z+27+5x=14y
If x,y and z each represent a different digit from 0 - 9 what is the value of (x)(y)(z)
In order for the equation to work, x must be odd. Trying different values of x, we find 5 solutions:
(x, y, z) = (1, 4, 6), (3, 5, 7), (5, 6, 8), (7, 5, 2), (9, 6, 3)
Then the product xyz could be any of 24, 105, 240, 70, or 162.
Evaluate the expression {362-[6×3+(48÷2)×2]}+3(9+4)
{362- {6x3+(48/2) x2]}+3(9+4)
{362- {6x3+24 x2]}+3(9+4)
{362- 66+3(9+4)
{362- 66+3(9+4)
{296+3(13)}
(296+39)
335
The Answer is 335.
To evaluate the expression {362-[6×3+(48÷2)×2]}+3(9+4), we need to follow the order of operations. After simplifying each part of the expression and performing the necessary operations, the final result is 287.
Explanation:To evaluate the expression {362-[6×3+(48÷2)×2]}+3(9+4), we need to follow the order of operations, also known as PEMDAS. This acronym stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
First, let's simplify the expression inside the parentheses: [6×3+(48÷2)×2].
Using the division rule, we have: [6×3+(24)×2].Next, we perform the multiplications: [18+48×2].Then, we simplify further: [18+96].The sum inside the parentheses is equal to 114. Therefore, the expression becomes {362-114}+3(9+4).Next, let's evaluate the expression inside the curly braces: {362-114}. This can be done by subtracting 114 from 362, resulting in 248.Finally, we have to evaluate the expression 3(9+4). Following the order of operations, we perform the addition inside the parentheses first: 3(13). Multiplying 3 by 13 gives us 39.Now, we add the results of the two evaluated expressions: 248+39. This gives us a final result of 287.
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Use inductive reasoning to describe the pattern. Then find the next two numbers in the pattern. –9, –4, 1, 6, . . .
We are given a pattern:
-9 , -4 , 1 , 6 , ...
We have to describe the pattern and find the next two terms
-9+5= -4
-4+5= 1
1+5= 6
Hence, the numbers are found by adding five to the previous term
The next two numbers are found as:
6+5 =11
11+5 = 16
Hence, next two numbers are:
11 and 16
multiply 3x-4y=-2 by three numbers and see if (6,5) is still a solution
What is the value of arcsin (-0.18)? Use a calculator to determine the answer.
Answer:
A) -0.18 rad
Step-by-step explanation:
arcsin(x) = a means that sin(a) = x
For example
arcsin(1) = pi/2.
It means that pi/2 is the value for which the sin is equals to 1.
arcsin(-0.18)
This is the value of x for which sin(x) = -0.18. This happens for x = -0.18 rad.
So the correct answer is:
A) -0.18 rad
Complete the equation of the line through (-1,6) (7,-2)
Like Y= ??
The point-slope form:
[tex]y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points (-1, 6) and (7, -2). Substitute:
[tex]m=\dfrac{-2-6}{7-(-1)}=\dfrac{-8}{8}=-1\\\\y-6=-1(x-(-1))\\\\y-6=-(x+1)\\\\y-6=-x-1\qqiad|\text{add 6 to both sides}\\\\\boxed{y=-x+5}[/tex]
Simplify the expression by combining like terms.
8m + 13g - 8 +3m-g
8m + 13g - 8 + 3m - g
8m + 3m = 11m
13g - g = 12g
11m + 12g - 8 ⇒ Your simplified expression
There you go! I really hope this helped, if there's anything just let me know! :)
Answer:
11m+12g-8
Step-by-step explanation:
8m+13g-8+3m-g
8m+3m+13g-g-8
11m+12g-8
Which of the following statements is NOT true?
A. A number ending in 0 or 5 is always divisible by 5.
B .A number ending in 0 is always divisible by 10.
C. If a number is divisible by both 2 and 3, then it is not divisible by 6.
D. Odd numbers are not divisible by 2.
Answer:
The answer is C
Step-by-step explanation:
Your welcome :)
caroline has enough pumpkin seeds to cover an area of 350 square feet. her garden measures 18 feet by 22 feet. does she have enough pumpkin seeds to fill the whole garden? explain
yes
area = 18 × 22 = 396 ft²
Since 396 > 350
Caroline has more than enough to fill her garden
Explicit formula for 79,71,63,55
Your sequence has a common difference of -8, so could be considered an arithmetic sequence with first term 79. A formula for the n-th term might be ...
... a[n] = 79 -8(n -1)
or
... a[n] = 87 -8n
Q##..15 Graph the equation. y= 4x - 3
Answer: Please, see the attached file.
Thanks.
Solution:
We can graph using the intercepts:
(1) y-intercept, when x=0
y=4x-3→y=4(0)-3→y=0-3→y=-3
Point=(x,y)=(0,-3)
(2) x-intercept, when y=0
y=4x-3→0=4x-3
Solving for x: Adding 3 both sides of the equation:
0+3=4x-3+3
3=4x
Dividing both sides of the equation by 4:
3/4=4x/4
3/4=x
x=3/4=0.75
Point=(x,y)=(3/4,0)=(0.75,0)
With these pair of points (0, -3) and (0.75,0) we can draw the right line
In the past you paid $800 per month to rent your apartment. You now pay $ 900 per month for your rent. What is the percent increase in your rent
800 - 900 = -100. = 100/800=.125 x 100 = 12.5% increase.
25 is the result when 8 and x are added. What is the value of x? Enter your answer in the box as a fraction in simplest form.
Its simply just 8 minus 25 to find x but there is no fraction.