Answer:
=91
Step-by-step explanation:
Convert 25 to base 8
a company was offering a special on cell phones for $3 each but only if you spent 5 dollars a month for 2 months how much would it end up costing you total if u bought 1 phone ?
Answer:
10 dollars
Step-by-step explanation:
5 + 5
If the scientist is accurate, what is the probability that the proportion of airborne viruses in a sample of 477 viruses would differ from the population proportion by more than 3%.
Answer:
0.01596
Step-by-step explanation:
A scientist claims that 8% of the viruses are airborne
Given that:
The population proportion p = 8%
The sample size = 477
We can calculate the standard deviation of the population proportion by using the formula:
\(\sigma_p = \sqrt{\dfrac{p(1-p)}{n}}\)
\(\sigma_p = \sqrt{\dfrac{0.8(1-0.8)}{477}}\)
\(\sigma_p = \sqrt{\dfrac{0.0736}{477}}\)
\(\sigma_p = 0.02098\)
The required probability can be calculated as:
\(P(| \hat p - p| > 0.03) = P(\hat p - p< -0.03 \ or \ \hat p - p > 0.03)\)
\(= P \bigg ( \dfrac{\hat p -p }{\sqrt{\dfrac{p(1-p)}{n}}} < -\dfrac{0.03}{0.0124} \bigg ) + P \bigg ( \dfrac{\hat p -p }{\sqrt{\dfrac{p(1-p)}{n}}} >\dfrac{0.03}{0.0124} \bigg )\)
= P(Z < -2.41) + P(Z > 2.41)
= P(Z < -2.41) + P(Z < -2.41)
= 2P( Z< - 2.41)
From the Z-tables;
\(P(| \hat p - p| > 0.03)\) = 2 ( 0.00798
\(P(| \hat p - p| > 0.03)\) = 0.01596
Thus, the required probability = 0.01596
(3/4, -2) (1, 5) (-2, -7) (3 -1/2) (6, 6) Is this a function? I don’t get it.
Mason loves collecting sea glass from the beach. He recorded the weight of each jar full of sea glass. If he decided to distribute the sea glass equally among the jars, how much would each jar weigh?
Answer:13 1/2
Step-by-step explanation:
Choose an image (2, 3, or 4) and answer the questions.
a. How does this image change from the previous image?
Lindsey sold stationery to her family and her mother's friends shw deposited the $125 shw earned in a savings account. The account earns 5.18% interest annually. If she does not deposit or withdraw any money for 18 months how much will she have in her account
Answer:
$134.71
Step-by-step explanation:
A = P(1 + rt)
A = Amount after t months or years
P = Principal or amount saved
r = interest rate = 5.18% = 0.0518
t = time.in years = 18 months
= 1 year and 6 month
= 1.5 year
A = $125( 1 + 0.0518 × 1.5)
A = $125 ( 1 + 0.0777)
A = $125(1.0777)
A = $134.71
I need help this is due tonight!!!!!!!
The required graph is attached below.
Given that,
Quarterback Susie has a bad attitude and often gets fined for bad sportsmanship.
And the table of cost is given,
Cost of fine Number of fines
1 1
2 4
3 1
We know that,
A graph is a form of figure used to show accumulated data. This data might be quantitative or qualitative, which means that graphs can be utilized for a variety of purposes.
This is why there are numerous sorts of graphs, such as bar graphs, line graphs, area graphs, pictographs, and others.
To plot this data,
Label number 0, 1 , 2, 3, 4... on a number line
Which represents the cost of fine in thousands of dollars.
And plot the graph according to the given data.
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Matthew invested $8,000 in an account paying an interest rate of 3 1/8% compounded
continuously. Parker invested $8,000 in an account paying an interest rate of 2 3/4%
compounded annually. To the nearest dollar, how much money would Parker have in
his account when Matthew's money has tripled in value?
Parker would have approximately $13,774 in his account when Matthew's money has tripled in value.
We have,
For Matthew's investment, the continuous compounding formula can be used:
\(A = P \times e^{rt}\)
Where:
A = Final amount
P = Principal amount (initial investment)
e = Euler's number (approximately 2.71828)
r = Annual interest rate (in decimal form)
t = Time (in years)
In this case,
Matthew's money has tripled,
So A = 3P.
For Parker's investment, the formula for compound interest compounded annually is used:
\(A = P \times (1 + r)^t\)
Where:
A = Final amount
P = Principal amount (initial investment)
r = Annual interest rate (in decimal form)
t = Time (in years)
We need to find t when Matthew's money has tripled in value.
Let's set up the equation:
\(3P = P \times e^{rt}\)
Dividing both sides by P, we get:
\(3 = e^{rt}\)
Taking the natural logarithm of both sides:
ln(3) = rt
Now we can solve for t
t = ln(3) / r
For Matthew's investment,
r = 3 1/8% = 3.125% = 0.03125 (as a decimal).
For Parker's investment,
r = 2 3/4% = 2.75% = 0.0275 (as a decimal).
Now we can calculate t for Matthew's investment:
t = ln(3) / 0.03125
Using a calculator, we find t ≈ 22.313 years.
Now, we can calculate how much money Parker would have in his account at that time:
\(A = P \times (1 + r)^t\)
\(A = $8,000 \times (1 + 0.0275)^{22.313}\)
Using a calculator, we find A ≈ $13,774.
Therefore,
Parker would have approximately $13,774 in his account when Matthew's money has tripled in value.
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Answer:
20,763
Step-by-step explanation:
I saw the answer after I got it wrong
whats nine and 5 tenth in standard form
Can someone please help me with this? I will give brainlist :(
Answer:
2nd
Step-by-step explanation:
The second one
A. 92
B. 112
C. 136
D. 38
Answer:
A?
Step-by-step explanation:
Answer:
B) 112
Step-by-step explanation:
(180-46)/2=67
67+45=112
what should she use as her common denominator
2.
Find the LCM of the set of algebraic expressions.
Answer:
\( LCM = 70a^2b \)
Step-by-step explanation:
The LCM of \( 10a^2, 35ab, 14b \), is the smallest expression of which each of the algebraic expression in the given set is divisible by it.
To find the LCM, follow these steps:
Step 1: Express each of the algebraic expressions in as product of its factors
\( 10a^2 = 2*5*a^2 \)
\( 35ab = 5*7*a*b \)
\( 14b = 2*7*b \)
Step 2: Find the product of each factors with the highest power
\( LCM = 2*5*7*a^2*b \)
\( LCM = 70a^2b \)
how do you find how many pounds he used, and how many pounds did he use?
Answer:
I'm not too sure what you are referring too and I can't clearly see the image but I'll give you some tips!
One way to find out how many pounds he used is to add all the pounds you know he used (what is written down) or to multiply, divide, whatever is best for the situation
so yeah hope this helped!
Which of the following are disadvantages of the mode?
For many sets of data there are multiple modes.
The mode is affected by extremely large and small values.
For many sets of data there is no mode.
the mode can only be computed for interval-level data or higher
The disadvantages of the mode are: For many sets of data there is no mode.
The mode is a measure of central tendency that represents the most frequently occurring value in a dataset.
However, one of the disadvantages of the mode is that for many sets of data, there may not be a distinct mode. In such cases, the data may have a uniform distribution where all values occur with equal frequency, or it may have multiple modes with similar frequencies.
The mode is not affected by extremely large or small values. It only considers the frequency of values and not their magnitude. Therefore, extreme values do not influence the mode.
The statement that the mode can only be computed for interval-level data or higher is incorrect. The mode can be computed for any type of data, including nominal, ordinal, interval, and ratio data. It is applicable to categorical as well as numerical data.
The main disadvantage of the mode is that for many datasets, there may not be a distinct mode.
The correct option is: For many sets of data there is no mode.
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Solve this inequality for x.
81 - 1 1/5x <_ 55
Answer:
Step-by-step explanation:
12 NO WELCOME
:)
Find the value of x in the isosceles triangle shown below
Check the picture below.
\(\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies o=\sqrt{c^2 - a^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{8}\\ a=\stackrel{adjacent}{2}\\ o=\stackrel{opposite}{x} \end{cases} \\\\\\ x=\sqrt{ 8^2 - 2^2}\implies x=\sqrt{ 64 - 4 } \implies x=\sqrt{ 60 }\)
9. (a) Find the slope of the tangent to the curve \(y=3+4 x^{2}-2 x^{3}\) at the point where \(x=a\text{.}\)
Find the slope of the tangent to the curve \(y=3+4 x^{2}-2 x^{3}\) at the point where \(x=a\text{.}\)
Derivatives:The derivative of a function can be determined using different rules and formulations. One of the important rules here is the power rule. Power rule is used to differentiate functions in the form of \(f(x) = x^n\).
\(\; \dfrac{d}{dx} (x^n) = nx^{n-1}\)
Explanation:We are supposed to find the slope of the tangent to the curve \(y=3+4 x^{2}-2 x^{3}\) at the point where \(x=a\).
\(\implies \dfrac{d}{dx}(3+4x^2-2x^3)\)
\(\implies \dfrac{d}{dx}(0+4(2x^{2-1})-2(3x^{3-1})\)
\(\implies \dfrac{d}{dx}(0+4(2x)-2(3x^2)\)
\(\implies \dfrac{d}{dx}(8x-6x^2\)
Now plugging \(x=a\) in the above equation, we obtain the following results:
\(\implies \boxed{8a -6a^2}\)
Hence, this is our required solution for this question.
Find f′(x)
1. f(x) = x + 2
2. f(x) =2/x2
f'(x) = 0 * x^(-2) + (-2/x^3) = -2/x^3.
So, the derivative of f(x) = 2/x^2 is f'(x) = -2/x^3.
To find f'(x) for the function f(x) = x + 2, we can use the power rule for derivatives.
The power rule states that if we have a function of the form f(x) = x^n, then the derivative is given by f'(x) = n*x^(n-1).
In this case, the function f(x) = x + 2 can be written as f(x) = x^1 + 2.
Applying the power rule, we differentiate each term separately:
f'(x) = d/dx (x^1) + d/dx (2)
The derivative of x^1 is 1x^(1-1) = 1x^0 = 1.
The derivative of a constant term like 2 is 0, as the derivative of a constant is always 0.
Therefore, f'(x) = 1 + 0 = 1.
So, the derivative of f(x) = x + 2 is f'(x) = 1.
To find f'(x) for the function f(x) = 2/x^2, we can use the power rule and the constant multiple rule.
The power rule states that if we have a function of the form f(x) = x^n, then the derivative is given by f'(x) = n*x^(n-1).
The constant multiple rule states that if we have a function of the form f(x) = cg(x), where c is a constant, then the derivative is given by f'(x) = cg'(x), where g'(x) is the derivative of g(x).
In this case, the function f(x) = 2/x^2 can be written as f(x) = 2 * x^(-2).
Applying the power rule and the constant multiple rule, we differentiate each term separately:
f'(x) = d/dx (2 * x^(-2))
Applying the constant multiple rule, the derivative of 2 is 0, as it is a constant term.
Applying the power rule, the derivative of x^(-2) is (-2) * x^(-2-1) = (-2) * x^(-3) = -2/x^3.
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The land in Mexico City is subsiding over time. What is the primary cause of this problem?
A.
too many dams being built along rivers
B.
deforestation caused by cutting down trees
C.
too many buildings being constructed
D.
underground aquifers being overpumped
Answer: D.
Step-by-step explanation:
Water is continually pumped out of underground aquifers to prevent flooding and to provide drinking water. This makes the soil compact, causing the city to sink.
Answer:
The correct answer is D. underground aquifers being over pumped
Step-by-step explanation:
PLEASE HELP, THANK YOU! :)
Steps to solve:
-4z + 4 + 12z = 3z + 4 + 5z
~Combine like terms
8z + 4 = 8z + 4
~Subtract 4 to both sides
8z = 8z
~Divide 8 to both sides
0 = 0
All real numbers are solutions.
Set builder notation: {x | R}
This is an identity since every value can be a solution to the equation.
Best of Luck!
1+1 pls, help, I will give you brainliest answer!!! just hellllllp!!!!!
Answer:
2!!!
Step-by-step explanation:
PLS GIVE BRAINLIEST
Answer:
1+1=2
Step-by-step explanation:
Brainliest please!
50 point What is the scale factor?
Answer:
2
Step-by-step explanation:
Compare the side RS and MN, RS is 3 while MN is 6, for 3 to become 6 it has to be multiplied by 2. So the scale factor is 2.
Please help! its due today!!
Answer:
14
Step-by-step explanation:
a=1
b=2
d=2
c=10
K+L = 10¹+2² = 10+4 = 14
Stefan sells Jin a bicycle for $176 and a helmet for $16. The total cost for Jin is 160% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin?
Answer:
Stefan originally paid $120 for the bicycle and helmet.
He made $72 by selling them to Jin.
Step-by-step explanation:
Given that:
Selling price of bicycle = $176
Selling price of helmet = $16
Total price = 176+16 = $192
This is 160% of what Stefan paid originally.
Let,
x be the original amount paid by Stefan.
160% of x = 192
\(\frac{160}{100}x=192\\1.6x=192\)
Dividing both sides by 1.6
\(\frac{1.6x}{1.6}=\frac{192}{1.6}\\x=120\)
Original amount paid by Stefan = $120
Profit = 192 - 120 = $72
Hence
Stefan originally paid $120 for the bicycle and helmet.
He made $72 by selling them to Jin.
Ms. Rios washed 2 5 of her laundry. Her son washed 1 3 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?
Answer:
The son has washed most of the laundry.
Step-by-step explanation:
Write these fractions as whole nombers
8/4
21/3
56/8
48/8
Answer:2, 7, 7, 6
Step-by-step explanation:
Answer:
1) 8/4 = 2
2) 21/3 = 7
3) 56/8 = 7
4) 48/8 = 6
Step-by-step explanation:
To convert a fraction into a whole number: Divide the numerator by the denominator.
What's a numerator?:
A numerator is the part of a fraction above the line. So, 8 in 8/4 is the numerator.
What's a denominator?:
A denominator is the bottom number in a fraction. So, 4 in 8/4 is the denominator.
1) 8/4 = 8 divided by 4 = 2.
2) 21/3 = 21 divided by 3 = 7
3)56/ 8 = 56 divided by 8 = 7
4) 48 / 8 = 48 divided by 8 = 6
18 pounds for 9 dollars what is it in unit rate
Answer:
0.5
Step-by-step explanation:
9 dollars divided by 18lbs.
9/18 = 0.5
$0.50/lbs
PLS HELP.I WILL MARK BRAINLIEST!!
Answer:
Answer in attachment photo