Answer:
10^6 is written 1,000,000
Step-by-step explanation:
Answer:
1,000,000
Step-by-step explanation:
10^6 = 10x10x10x10x10x10 = 1,000,000
What system of equations is shown on the graph below?
Answer:
don't know
Step-by-step explanation:
you didn't put any options g
Diameter of a sphere 7m calculate the sphere volume
Answer:
179.59 m³
Step-by-step explanation:
Formula for sphere volume: V=4/3πr^3
determine the scale factor of the dilation, if OA = 8 and OA' = 32
Answer:
The scale factor is 4
Step-by-step explanation:
32(end product) divided by 8(original) = 4
Answer:
scale factor = 4
Step-by-step explanation:
The scale factor is the ratio of corresponding sides, image to original, that is
scale factor = \(\frac{OA'}{OA}\) = \(\frac{32}{8}\) = 4
Comparisons of home improvement costs.
Company Total Remodeling Cost Financing Terms Ramona is Considering
Large Home Improvement Store $13,200
Financing through the bank servicing the national home improvement company: 1 year 0% financing with a minimum monthly payment of $100; 16.99% APR for the remaining 3 years
Local Small Business Home Improvement Company $11,800
Financing through her local credit union: 3% origination fee to be paid first then 7.5% APR for 5 years
Online Construction Business $10,200
Financing through an online banking service: $1,000 applied toward the project before payback begins then 11.9% APR for 4 years.
Calculate the monthly payments for 2 of these options given that interest is compounded monthly.
What is the total amount that must be paid for each of the 2 options you chose?
In the 2 options you chose, what percentage of the total amounts to be paid back to each financial institution is interest?
How would you explain to Ramona the differences between these percentages and their corresponding APR’s?
Based on the financial outcomes for the 2 options you chose, which company would you suggest that Ramona choose to remodel her kitchen? Defend your suggestion.
1. The monthly payments for 2 of these options are:
Local Small Business Home Improvement Company = $236.45Online Construction Business = $294.39.2. The total payments for 2 of these options are:
Local Small Business Home Improvement Company = $14,540.87Online Construction Business = $14,130.69.3. The percentage of the total amounts to be paid back as interest is:
Local Small Business Home Improvement Company = 16.41%Online Construction Business = 20.74%.4. The percentages above represent the aggregated interest portion of the total payments, while the APR (annual percentage interest) represents the yearly financing cost charged by the financing institution for extending credit.
5. Ramona should choose the Online Construction Business to remodel her kitchen because the total cost she will incur is less than the total cost for the Local Small Business Home Improvement Company.
Large Home Improvement Store:Home improvement cost = $13,200
Financing:
Year 1 0% monthly payment of $100 = $1,200
Balance after Year 1 = $12,000
APR 16.99%
Remaining payment period = 3 years
N (# of periods) = 36 months
I/Y (Interest per year) = 16.99%
PV (Present Value) = $12,000
FV (Future Value) = $0
Results:
PMT = $427.77
Sum of all periodic payments = $15,399.83
Total Interest = $3,399.83
Total costs = $16,599.83 ($15,399.83 + $1,200)
Local Small Business Home Improvement Company:Home improvement cost = $11,800
Financing:
3% origination fee = $354 ($11,800 x 3%)
APR = 7.5%
Payment period = 5 years
N (# of periods) = 60 months (5 years x 12)
I/Y (Interest per year) = 7.5%
PV (Present Value) = $11,800
FV (Future Value) = $0
Results:
PMT = $236.45
Sum of all periodic payments = $14,186.87
Total Interest = $2,386.87
Total costs = $14,540.87 ($14,186.87 + $354)
Interest as a percentage of the total payment = 16.41% ($2,386.87/$14,540.87 x 100)
Online Construction Business:Home improvement cost = $10,200
Additional applied amount = $1,000
Total = $11,200
APR = 11.9%
Payment period = 4 years
N (# of periods) = 48 months (4 years x 12)
I/Y (Interest per year) = 11.9%
PV (Present Value) = $11,200
FV (Future Value) = $0
Results:
PMT = $294.39
Sum of all periodic payments = $14,130.69
Total Interest = $2,930.69
Total cost = $14,130.69
Interest as a percentage of the total payment = 20.74% ($2,930.69/$14,130.69 x 100)
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Please help thank u!!
Answer:
3500 mL = 3 1/2 L
Step-by-step explanation:
1 L = 1000 mL
3 1/2 L = (3 1/2)(1000 mL) = 3500 mL
3500 mL = 3 1/2 L
_____
Additional comment
The SI prefix "m" is an abbreviation for "milli-", meaning 1/1000. That is, 1 mL = 1/1000 L, or 1 L = 1000 mL.
The graph of the quadratic function y=2x^2-4x+1 is pictured below along with the point P=(-1,7) on the parabola and the tangent line through P
The equation of the function passing through the given point is
y = -8x -1
The equation of a line in point-slope form is expressed as:
\(y-y_0=m(x-x_0)\)
m is the slope
\((x_0,y_0)\) is the point on the line
Given the equation \(y=2x^2-4x+1\)
Get the slope by differentiating at x = -1
\(m=\frac{dy}{dx} =4x-4\\m=\frac{dy}{dx} =4(-1)-4\\m=\frac{dy}{dx} =-4-4\\m=\frac{dy}{dx} =-8\)
Substitute (-1, 7) and m = -8 into the formula above to have \(y-7=-8(x+1)\)
Simplify
\(y-7=-8x-8\\y+8x = -8+7\\y+8x=-1\\y=-8x-1\)
Hence the equation of the function passing through the given point is
y = -8x -1
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Oscar has received a $4,000 gift and is looking for a bank to start a savings account. Which option
would be the best for him at a current inflation rate of 1.5%?
A nominal interest rate of 5%
A real interest rate of 5%
A real interest rate of 3%
A nominal interest rate of 3%
Answer:
The best option for him would be a real interest rate of 5%.
Step-by-step explanation:
The nominal interest rate is the one that represents the percentage of increase of the money that is in a certain investment, without discounting the depreciation due to inflation or the payment of taxes.
On the other hand, the real interest rate is the one that represents the real increase in the money invested, after discounting inflation and any taxes to be paid.
Therefore, the best option for Oscar would be to invest his $ 4,000 in a savings account with a real interest rate of 5% per year.
Question 26: [4 points]
1% of a population have a certain disease and the remaining 99% are free from this disease. A test is used to detect this disease. This test is positive in 95% of the people with the disease and is also (falsely) positive in 2% of the people free from the disease.
If a person, selected at random from this population, has tested positive, what is the probability that she/he has the disease?
Let D be the event "have the disease" and FD be the event "free from the disease" Let the event TP be the event that the "test is positive".
A diagram with all the above information is shown.
\(P(D/TP) = \frac{P(D \: n \: TP)}{P(TP)} \)
\(P(TP) = P(TP \: n \: D)+P(TP \: n \: FD) \\ P(TP) = 0.95×0.99 + 0.02×0.01 = 0.9407\)
\(P(D/TP) = \frac{0.9405}{0.9407} = \frac{9405}{9407} \)≈0.999787
A study was conducted on the educational level of patients with AIDS, it was asume that
with ten years of education will be in group A, between 10 and 20 group B and between 20
group C. After the analysis it was realized that group A had 100 persons while group B and C had 30 persons
(a) If you decide to select based on proportion of 10% from each group how many patien
selected from each group. Show your calculation.
(b) What name can be given to the classified groups?
(c) What method of sampling was employed in the selection process?
1. State and explain the three major data collection techniques.
What is a variable?
What is a Parameter?
A variable is a characteristic or attribute that can take on different values. It is an observable and measurable property of an object or phenomenon, which can be used to describe and analyze it.
Parameters are used in inferential statistics to make conclusions about a population based on a sample of data.
(a) If you decide to select based on proportion of 10% from each group, the number of patients selected from each group would be: Group A = (10/100) x 100 = 10 patients Group B = (10/100) x 30 = 3 patients Group C = (10/100) x 30 = 3 patients.
(b) The classified groups can be named as follows: Group A = 10 years of education or less Group B = More than 10 years but less than or equal to 20 years of education Group C = More than 20 years of education.
(c) The sampling method employed in the selection process was stratified sampling. Stratified sampling is a type of probability sampling technique where the population is divided into homogeneous subgroups or strata, and the researcher selects a simple random sample from each subgroup or stratum.
The researcher chooses a proportion of participants from each subgroup to represent the population as a whole, which allows for more precise estimates of the population parameters than simple random sampling.
The sample is selected randomly from the stratified sample, which ensures that the sample is representative of the population.
A variable is a characteristic or attribute that can take on different values. It is an observable and measurable property of an object or phenomenon, which can be used to describe and analyze it.
Variables are used in research to test hypotheses, determine relationships between different phenomena, and make predictions about future outcomes.
A parameter is a numerical summary of a population, which describes a characteristic of the population. It is an unknown constant that can only be estimated from a sample of data.
Parameters are used in inferential statistics to make conclusions about a population based on a sample of data.
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you want to install molding around the circular room. How much it would cost you to install the molding that you picked if it cost $4.22 per foot?
The cost of the molding is given as follows:
$119.30.
What is the measure of the circumference of a circle?The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
The parameters for this problem are given as follows:
d = 9 -> r = 4.5.
(as the radius is half the diameter)
Hence the circumference is given as follows:
C = 2 x π x 4.5
C = 28.27 ft.
The cost is of $4.22 per ft, hence the total cost is given as follows:
4.22 x 28.27 = $119.30.
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ITS DO TODAY HELPPPPPPP
The difference in the addition of both fractions is that they have different lowest common multiples.
How to solve Fraction Problems?We want to add the fraction expression given as:
¹/₂ + ¹/₄
Taking the Lowest common multiple of 8, we have:
(4 + 2)/8 = 6/8
However, for the second fraction expression, we have:
¹/₂ + ¹/₃
Taking the lowest common multiple which is 6, we have:
(3 + 2)/6 = 5/6
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Answer must be in simplest form and can not be an improper fraction. Explain your steps.
\(3 \frac{1}{15} + 0.4\)
The simplification of the given value in simplest form and can not be an improper fraction is 52/15.
What is fraction?An object's portion of the total or group is represented by a fraction. The fractional bar is a horizontal bar that divides a fraction's numerator (the top number) and denominator (the bottom number). The total number of items in a group or the number of equally divided equal pieces of the whole is represented by the denominator.
The given value is 3 1/15 + 0.4 , then we can convert to proper fraction as :
3 1/15 = 46/15
Then we can convert as;
0.4 = 4/10 =2/5
Then add together; 46/15 + 2/5
= 52/15
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What is the measure of each interior angle of the regular polygon pictured below? If necessary, round to the nearest tenth.
\(\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ n\theta = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta = \stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ n=5 \end{cases}\implies 5\theta =180(5-2) \\\\\\ 5\theta =180(3)\implies 5\theta =540\implies \theta =\cfrac{540}{5}\implies \theta =108\)
y-1=-1/2 (x-2) graph point and slope
Answer:
The slope of the line \(m = -\frac{1}{2}\)
The point ( x₁ ,y₁) = ( 2,1)
Step-by-step explanation:
Explanation:-
Given that the line
\(y -1 = -\frac{1}{2} ( x-2)\)
Comparing y- y₁ = m(x-x₁)
The slope of the line \(m = -\frac{1}{2}\)
The point ( x₁ ,y₁) = ( 2,1)
The equation of the straight line
\(y -1 = -\frac{1}{2} ( x-2)\)
2(y-1) = -(x-2)
2y -2 = -x +2
x + 2y -2-2=0
x +2y -4=0
Final answer:-
The equation of the straight line x+ 2y-4=0
The slope of the line \(m = -\frac{1}{2}\)
The point ( x₁ ,y₁) = ( 2,1)
Integral of 1/(x+cosx)
The integral is ln|x + cos(x)| + C, where C represents the constant of integration.
To find the integral of the function 1/(x + cos(x)), we can employ a combination of algebraic manipulation and the use of standard integration techniques. Here's the solution:
First, let's rewrite the integral in a slightly different form to simplify the process:
∫(1/(x + cos(x))) dx
We notice that the denominator, x + cos(x), is not amenable to direct integration. To overcome this, we employ a substitution. Let's set u = x + cos(x). Now, differentiate u with respect to x: du/dx = 1 - sin(x).
Rearranging this equation, we get dx = du/(1 - sin(x)).
Substituting these values, the integral becomes:
∫(1/(u(1 - sin(x)))) du
Next, we simplify further by factoring out 1/(1 - sin(x)) from the integral:
∫(1/(u(1 - sin(x)))) du = ∫(1/u) du = ln|u| + C
Replacing u with its original expression, we have:
ln|x + cos(x)| + C
Therefore, the answer to the integral is ln|x + cos(x)| + C, where C represents the constant of integration.
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Suppose that v varies directly with x, and v = 20 when x = 32.
A) Write a direct variation equation that relates x and y .
B) Find y when x = 24
\(\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] ~\dotfill\)
\(\stackrel{\textit{"v" varies directly with "x"}}{v = k(x)}\hspace{5em}\textit{we also know that} \begin{cases} x=32\\ v=20 \end{cases} \\\\\\ 20=k(32)\implies \cfrac{20}{32}=k\implies \cfrac{5}{8}=k\hspace{8em}\boxed{v=\cfrac{5}{8}x} \\\\\\ \textit{when x = 24, what's v?}\qquad v=\cfrac{5}{8}(24)\implies v=15\)
Help me who here is a master at math I need your help !!
Answer:
88.4ft²
Step-by-step explanation:
oh lordy, why, why, nobody's garden is actually like this, and even if it was, you don't need to know the area, hold onto your hats:
So, we're going to assume that we can split the 10.4 evenly into the triangles and the trapezoid, so let's start with that:
10.4 ÷ 2 = 5.2 (if this is what get the whole thing wrong, I'm so sorry)
So, now we're going to do the triangle to the left of the trapezoid (remember that the formula for a triangle is base x height ÷ 2):
6 x 5.2 ÷ 2 = 15.6
So the area is 15.6ft
Now let's do the triangles under the trapezoid:
So the entire length of the under thing is 18 feet, and we take off 6 from the previous triangle, so:
18 - 6 = 12
and we're going to assume that both the triangles are equal:
12 ÷ 2 = 6
6 x 5.2 = 15.6 (at this point I realize that all the triangles are equal, welp, we just did that for nothing, anyways) now we need two of them
15.6 x 2 = 31.2
So the area of the triangles under the trapezoid is 31.2ft
Now, the trapezoid:
so we know that the top base is 4 feet, and we know that the bottom one is 12 from the triangles above us, (the formula for a trapezoid is (base + base)height ÷ 2) so:
4 + 12 = 16
16 x 5.2 = 83.2
83.2 ÷ 2 = 41.6
So the trapezoid is 41.6ft
Now we add all of our disgustingness together:
15.6 + 31.2 + 41.6 = 88.4
So, the area of the entire garden is 88.4ft²
hope this helps:)
Multiplying a number by 2and divided by 3is the same as multiplying by what number
Answer:
\(\frac{2}{3}\)
Step-by-step explanation:
multiplying a number by 2 and dividing it by 3.. let's think for a moment
take the equation: 2x/3
dividing is the same as multiplying by a fraction, so let's take the "divide by 3" and turn it into a fraction!
new equation: 2x*\(\frac{1}{3}\)
now, we can take the coefficient, 2, and slap it onto the top of the fraction
equation: x*\(\frac{2}{3}\)
boom! I hope this helped you
if angle 3 and angle 4 are corresponding angles, then their vertical angles are also corresponding angles
always sometimes or never
Explanation:
Drawing out a diagram usually helps with these types of problem. See the diagram below.
We have angle 3 and angle 4 as corresponding angles (since they are both in the north east corner of each four-corner configuration). Angle 1 = angle 3 is one pair of vertical angles and angle 2 = angle 4 is another pair of vertical angles. We see that angles 1 and 2 are corresponding angles in the south west corners of each four-corner configuration. That's why the original statement is always true.
everything at a store is on sale. The store offers a 25% discount. The regular price of a t-shirt is 20%. What is the discount price? Please help me.
The discount price of the shirt will be $15.
How to calculate the price?A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100. The percentage therefore refers to a component per hundred. Per 100 is what the word percent means. It is represented by %.
From the information, the store offers a 25% discount and the regular price of a t-shirt is $20. Therefore, based on the information illustrated, the main points to note will be:
Discount = 25%
Regular price = $20.
In this case, the discount price will be the difference between the regular price and the discount.
The discount price will be:
= Regular price - Discount
= $20 - ($20 × 25%)
= $20 - $5
= $15
The price is $15.
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Complete question
everything at a store is on sale. The store offers a 25% discount. The regular price of a t-shirt is $20. What is the discount price? Please help me
by substituting the given values for x calculate the y value for the following equation y=x+2
Write an equation of the circle graphed below
Answer:
Below
Step-by-step explanation:
Center (h,k) is - 2, -2 radius is 1
Equation for a circle with center (h,k) and radius r is :
(x-h)^2 + (y- k )^2 = r^2 <====you have to learn/remember this
Plug in the values above to get
(x+2)^2 + (y+2)^2 = 1
Answer:
(x+2)^2+(y+2)^2=0.5625
Step-by-step explanation:
trust
5 Signs for science project displays are cut of poster board that measure 1 yard on each side. Each sign is-yard long and-yard wide. How ma signs can be cut from 1 piece of poster board? Wh the area of each sign? Show your work.
Answer:
\(\text{27}\)
Step-by-step explanation:
Given that :
\(\text{Dimension of poster board} = 1 \ \text{yd} \ \text{by} \ 1 \ \text{yd}\)
\(\text{Dimension of each poster board} = \dfrac{1}{3} \ \text{yd} \ \text{by} \ \dfrac{1}{9} \ \text{yd}\)
Number of poster signs that can be cut :
\(\text{Area of poster sign} = \dfrac{1}{3} \times \dfrac{1}{9} = \dfrac{1}{27} \ \text{yard}^2\)
\(\text{Area of poster board} = 1 \ \text{yard}^2\)
Number of poster signs that can be cut :
\(\dfrac{\text{Area of poster board}}{\text{Area of poster sign}}\)
\(1 \ \text{yard}^2\div (\dfrac{1}{27} ) \ \text{yard}^2\)
\(1 \div \dfrac{1}{27}\)
\(1 \times \dfrac{27}{1}\)
\(\bold{= 27 \ poster \ signs}\)
I need this answered by tmr please!!
Select from the drop-down menus to correctly complete the statement.
The rule (x, y)→(x−10, y−4) represents a translation 10 units
Choose...
and 4 units
Choose...
.
The rule (x,y) -> (x - 10, y - 4) represents a translation of 10 units left and 4 units down.
What are the translation rules?The four translation rules are defined as follows:
Left a units: x -> x - a.Right a units: x -> x + a.Up a units: y -> y + a.Down a units: y -> y - a.Hence the meaning of each translation in the context of this problem is given as follows:
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What is the segment units of RT
Answer:
RT = 81
Step-by-step explanation:
RT = RS+ST
13y – 23 = ( 6y+2) + (3y+7)
13y – 23 = 9y +9
13y – 9y = 9+23
4y = 32
y = 32/ 4
y=8
RT= 13y – 23 = 13 (8) – 23 = 104 – 23 = 81
___o___o___
If you want RS , ST
RS = 6y +2 = 6(8)+2 = 48 +2=50
ST = 3y +7 = 3(8) +7 = 24 + 7 =31
I hope I helped you^_^
a small car cost3$.a large car 5 times as much as the small one. Joe wants to buy one of each what equation would he use to find the cost(a) of two cars(5×$3)÷3=a or 5×($3+$3)=a
cost of small car=$3
cost of large car=$5*3
he wants to buy one of each:
euquation for cost two cars(a)= $3+(5*$3)
Help me with the square roots please, meaning by simplify the equation
The simplification of the given expression
\(5 \sqrt[3]{250} - 3 \sqrt[3]{686} \)
is
\( = 4 \sqrt{2} \)
How to simplify expressions?\(5 \sqrt[3]{250} - 3 \sqrt[3]{686} \)
\( = 5 \sqrt[3]{125 \times 2} - 3 \sqrt[3]{343 \times 2} \)
\( = 5 \times 5 \sqrt{2} - 3 \times 7 \sqrt{2} \)
\( = 25 \sqrt{2} - 21 \sqrt{2} \)
\( = 4 \sqrt{2} \)
Consequently,
\(4 \sqrt{2} \)
is the answer to the given expression.
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A wave has a frequency of 50Hz and a wavelength of 10m. What is the speed of the wave? Given:
Unknown:
Formula:
Solution:
Final answer:
Answer:
formula 8.334
Step-by-step explanation: formula 8.334 so
The area of the smaller regular pentagon is about 27.5 cm².
What is the best approximation for the area of the larger regular pentagon?
11cm²
172 cm²
70 cm²
275 cm²
Answer:172 cm²
Step-by-step explanation:
when we use the formula, and we can solve out is like 172.05 and round to tenth and will have the answer
Formula is 1/2 × p × a
PLEASE HELP
Solve the following system algebraically. y = x^2 + 11 and y = –12x
Answer:
x^2+12x=-11
Step-by-step explanation:
Answer:
(-1, 12) and (-11, 132)
Step-by-step explanation: