9514 1404 393
Answer:
49.3 feet
Step-by-step explanation:
Shadow lengths and object heights are considered to be proportional, so we have ...
tree height/(tree shadow) = Andrew's height/(Andrew's shadow)
height / (85 ft) = (5.8 ft)/(10 ft)
height = (85 ft)(5.8/10) = 49.3 ft
The tree is 49.3 feet tall.
What is the slope of the line in this graph?
Answer:
5/7
Step-by-step explanation:
B
The graph of a line passes through the points (0,5) and (-10, 0). What is the
equation of the line?
Answer:
The equation is y=1/2x+5
Step-by-step explanation:
Answer:
y=1/2x+5
Step-by-step explanation:
I learned this last year. I know this is the answer
A new bank customer with $4,000 wants to open a money market account. The bank is offering a simple interest rate of 1.9%. a. How much interest will the customer earn in 10 years? b. What will the account balance be after 10 years?
Part A.
The simple interest formula is given by
\(I=\text{Prt}\)where I is the interest earned after t years, P is the money invested, r is the rate and t is the time. In our case, P=$4000, r=0.019 and t=10 years. Then, by substituting these values into the last formula, we have
\(\begin{gathered} I=4000\times0.019\times10 \\ I=\text{ \$760} \end{gathered}\)How much interest will the customer earn in 10 years? $760
Part B
The formula for the ending balance A on an account with simple interest is
\(A=P+I\)then, in our case, we have
\(\begin{gathered} A=4000+760 \\ A=4760 \end{gathered}\)What will the account balance be after 10 years? $4760
8) -4+41-5 +9pl = 48
Answer:
L= -11/9p
Step-by-step explanation:
put me brailiest
if you double a number and then add 36, you get 4 over 11 (4/11) of the original number,
what is the original number?
Answer:
The original number is -22
Step-by-step explanation:
We'll label our mystery number x.
2x + 36 = 4x/11
Multiply both sides by 11
4x = 22x + 396
Isolate x to one side (for this I subtract 4x from both sides, but you can also subtract 22x if you'd like)
0 = 18x + 396
Isolate x pt 2
18x = -396
Divide both sides by 18 to find your answer!
x = -22
Plug in to confirm
-44 + 36 = -88/11S
8 = 8
What is the domain of the function represented by the graph?
All real numbers (In interval form (-∞,∞) )
Given,
From the graph,
To find the domain of the function.
Now,
We know that a domain of a function is the set of the all the x-values for which the function is defined.
By looking at the graph of the function we see that it is a graph of a upward open parabola and the graph is extending to infinity on both the side of the x-axis this means that the function is defined all over the x-axis i.e. for all the real values.
Also, we know that the function will be a quadratic polynomial since the equation of a parabola is a quadratic equation and as we know polynomial is well defined for all the real value of x.
The domain of the function is:
Hence, All real numbers (In interval form (-∞,∞) )
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5.35
2.2 Show your work please!
Answer:
what lesson in math is this??
On a partagé une somme entre trois personnes: la première en a reçu les deux tiers, la deuxième 300dirhams de moins que la deuxième. Chercher la somme et les trois parts
Makayla is a botanist studying production of coconuts by two different groups of her coconut palms. She notices that Group 1 trees produce 25 percent more coconuts than Group 2. based on Makayla's observation, if Group 1 produced 150 coconuts, how many coconuts did group 2 produce?
If Group 1 trees produce 25 percent more coconuts than Group 2, proportionately, Group 2 trees produce 120 coconuts.
What is proportion?Proportion refers to the two ratios equated to each other.
Proportion shows how much quantity or value is contained in another.
We depict proportions using fractional values, such as fractions, decimals, and percentages.
The number of coconuts produced by Group 1 trees = 150
The percentage by which Group 1 trees produce more than Group 2 = 25%
Let Group 1's production compared to Group 2's = 1.25 (100% + 25%)
Let Group 2's production = 100% = 150/125 x 100
= 120 coconuts
Thus, Group 2 trees would produce 120 coconuts compared to Group 1 trees that produced 150, which was proportionately, 25% more.
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help please 40 points answer correct please
Answer:
bballs: 8*2+2=18
baseballs: 5*8-4=36
softballs: 36/2+6=24
Step-by-step explanation:
easy Hope this helps!
Use the graph to estimate the median cost of a home in 2014 (19 years after 1995).
Using the given graph, we can see that the median cost is 480 thousands of dollars.
How to estimate the cost in 2014?To find the cost in 2014, 19 years after 1995 which is the zero in the horizontal axis, first we need to locate the value x = 19 in the horizontal axis.
Once we do, we move vertically upwards until we meet the graph (in this case, the blue line).
Once we meet with the graph of the line, we move horizontally until we hit the vertical axis, and we record the correspondent value.
Doing that, we can see that the median cost of a home in 2014 is 480 thousands of dollars.
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Find the limit if the limit exists:
The limit in this problem is given as follows:
\(\lim_{x \rightarrow 3} \sqrt{x + 1} = 2\)
How to obtain the limit?The function for this problem is defined as follows:
\(\lim_{x \rightarrow 3} \sqrt{x + 1}\)
The value of x at which we want to calculate the limit is given as follows:
x = 3.
The function in this problem has a domain of all real values, meaning that the limit is given by the numeric value of the function at x = 3, replacing the lone instance of x in the definition of the function by 3, as follows:
square root of (3 + 1) = square root of 4 = 2.
Which is the value of the limit.
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To find:-
\(\displaystyle \lim_{x\to3}\sqrt{x+1} \\\)Answer:-
The given limit to us is ,
\(\implies \displaystyle \lim_{x\to 3}\sqrt{x+1} \\\)
We start by substituting, x = 3 , so we have;
\(\implies \displaystyle \sqrt{ x +1}\\\)
\(\implies \displaystyle \sqrt{3+1} \\\)
\(\implies \displaystyle \sqrt{4}=\boxed{2}\\\)
Therefore,
\(\implies \underline{\underline{\displaystyle \lim_{x\to3}\sqrt{x+1} = 2}} \\\)
and we are done!
place parentheses in the expression so it simplifies to 30.5•7-3+2
Answer:
210.5.
Step-by-step explanation:
To simplify the expression 30.5•7-3+2 and ensure that the order of operations is clear, we can place parentheses around the first two terms:
(30.5•7) - 3 + 2
Now, we can perform the multiplication first:
213.5 - 3 + 2
Then, we can simplify by performing the addition and subtraction:
210.5
Therefore, with the added parentheses, the expression simplifies to 210.5.
As understand you need to get 30 by placing parenthesis in the expression:
5*7 - 3 + 2There are two ways I can think of.
1) The 5*7 is 35 so we can subtract 5 to get 30:
5*7 - (3 + 2) = 35 - 5 = 302) Another way is 5*6 = 30 and it is achieved as:
5*(7 - 3 + 2) = 5*6 = 30A radio tower is located on a coordinate system measured in miles. The range of a signal in a particular direction is modeled by a quadratic function where the boundary of the signal starts at the vertex at (4, 2). It passes through the point (5, 4). A linear road connects points (–3, 7) and (8, 2). Which system of equations can be used to determine whether the road intersects the boundary of the tower’s signal?
StartLayout Enlarged Left-Brace 1st Row y minus 2 (x minus 4) squared = 2 2nd Row 5 x + 11 y = 62 EndLayout
StartLayout Enlarged Left-Brace 1st Row y minus (x minus 4) squared = 2 2nd Row 5 x + 11 y = 62 EndLayout
StartLayout Enlarged Left-Brace 1st Row y minus (x minus 4) squared = 2 2nd Row 11 x + 5 y = 2 EndLayout
StartLayout Enlarged Left-Brace 1st Row y minus 2 (x minus 4) squared = 2 2nd Row 11 x + 5 y = 2 EndLayout
Using a linear function and a quadratic function, the system of equations that can be used to model this situation is:
y = 2(x - 4)² + 2.5x + 11y = 62.What is the quadratic equation?The equation of a quadratic function, of vertex (h,k), is given by:
y = a(x - h)² + k
In which a is the leading coefficient.
For this problem, the vertex is at (4,2), hence h = 4, k = 2 and the equation is:
y = a(x - 4)² + 2.
It passes through the point (5, 4), hence when x = 5, y = 4, which we use to find a.
4 = a + 2.
a = 2.
Thus the equation is:
y = 2(x - 4)² + 2.
What is the linear equation?The linear equation is given by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.The road connects points (–3, 7) and (8, 2), hence the slope is given by:
m = (2 - 7)/(8 - (-3)) = -5/11.
Then:
y = -5/11x + b.
When x = 8, y = 2, hence we use it to find b as follows:
2 = -40/11 + b
b = 62/11.
Then the equation is:
y = -5/11x + 62/11.
Multiplying by 11:
11y = -5x + 62.
5x + 11y = 62.
The system of equations is:
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Answer:
StartLayout Enlarged Left-Brace 1st Row y minus 2 (x minus 4) squared = 2 2nd Row 5 x + 11 y = 62 EndLayout
Step-by-step explanation:
The answer above is correct.
a = 2bh+6
make b subject algebraic expression
Answer:
b = (a - 6)/2h
Step-by-step explanation:
a = 2bh + 6 (subtract 6 from both sides)
a - 6 = 2bh (divide both sides by 2)
(a - 6)/2 = bh (divide both sides by h)
(a - 6)/2h = b
Brainliest, please :)
Complete the table. Then
identify the y-intercept
and the coordinate
where x = 1.
Consider the following
exponential equation.
Sketch the graph of the
exponential function.
y = 16(4x+1)
у
х
-2
-1
o
1
2
3
As x increases (x ).
у
As x decreases (x-co),
у
Answer:
y x
-2 1/4
-1 1/2
0 1
1 2
2 4
Step-by-step explanation:
its easy algbra
doing it rn to
Which expression represents the phrase The sum of w and twenty
A. 20w
B. w + 20
C. w^20
D. 20 x w
The equation for the trend line for the scatterplot shown below is y = 5x + 24. What does the slope mean in the context of this problem?
A). The total amount of dollars earned is about $64
B). If no hours are worked, $24 is made
C). For each hour worked the dollars earned increases by $5
D). A total of $80 was earned
Please help
Answer:
C) For each hour worked the dollars earned increases by $5
Step-by-step explanation:
I don't have the context of the problem.
However, we do know that in math, when we have an equation of the form \(y=mx+b\), the slope m represents the rate of change. This means, how much one quantity changes in regards to other quantity (from the options I can assume that we are talking about amount earned and hours worked).
Thus, in this case we have \(m=5\) and this tells us how much the payment increase in terms of hours worked. Thus, we can say that for each work we work the payment increases by $5.
Thus, the correct answer is c) For each hour worked the dollars earned increases by $5
Five years older than Mukhari. Find the value of the expression if Mukhari is 43 years old.
I need help with this differential equation.
(i) The partial fraction decomposition of\(100/(x^7 * (10 - x))\) is\(100/(x^7 * (10 - x)) = 10/x^7 + (1/10^5)/(10 - x).\) (ii) The expression for t in terms of x is t = 10 ± √(100 + 200/x).
(i) To express the rational function 100/(\(x^7\) * (10 - x)) in partial fractions, we need to decompose it into simpler fractions. The general form of partial fractions for a rational function with distinct linear factors in the denominator is:
A/(factor 1) + B/(factor 2) + C/(factor 3) + ...
In this case, we have two factors: \(x^7\) and (10 - x). Therefore, we can express the given rational function as:
100/(\(x^7\) * (10 - x)) = A/\(x^7\) + B/(10 - x)
To determine the values of A and B, we need to find a common denominator for the right-hand side and combine the fractions:
100/(x^7 * (10 - x)) = (A * (10 - x) + B * \(x^7\))/(\(x^7\) * (10 - x))
Now, we can equate the numerators:
100 = (A * (10 - x) + B * \(x^7\))
To solve for A and B, we can substitute appropriate values of x. Let's choose x = 0 and x = 10:
For x = 0:
100 = (A * (10 - 0) + B * \(0^7\))
100 = 10A
A = 10
For x = 10:
100 = (A * (10 - 10) + B *\(10^7\))
100 = B * 10^7
B = 100 / 10^7
B = 1/10^5
Therefore, the partial fraction decomposition of 100/(\(x^7\) * (10 - x)) is:
100/(\(x^7\) * (10 - x)) = 10/\(x^7\) + (1/10^5)/(10 - x)
(ii) Given the differential equation: dx/dt = (1/100) *\(x^2\) * (10 - x)
We are also given x = 1 when t = 0.
To solve this equation and obtain an expression for t in terms of x, we can separate the variables and integrate both sides:
∫(1/\(x^2\)) dx = ∫((1/100) * (10 - x)) dt
Integrating both sides:
-1/x = (1/100) * (10t - (1/2)\(t^2\)) + C
Where C is the constant of integration.
Now, we can substitute the initial condition x = 1 and t = 0 into the equation to find the value of C:
-1/1 = (1/100) * (10*0 - (1/2)*\(0^2\)) + C
-1 = 0 + C
C = -1
Plugging in the value of C, we have:
-1/x = (1/100) * (10t - (1/2)\(t^2\)) - 1
To solve for t in terms of x, we can rearrange the equation:
1/x = -(1/100) * (10t - (1/2)\(t^2\)) + 1
Multiplying both sides by -1, we get:
-1/x = (1/100) * (10t - (1/2)\(t^2\)) - 1
Simplifying further:
1/x = -(1/100) * (10t - (1/2)\(t^2\)) + 1
Now, we can isolate t on one side of the equation:
(1/100) * (10t - (1/2)t^2) = 1 - 1/x
10t - (1/2)t^2 = 100 - 100/x
Simplifying the equation:
(1/2)\(t^2\) - 10t + (100 - 100/x) = 0
At this point, we have a quadratic equation in terms of t. To solve for t, we can use the quadratic formula:
t = (-(-10) ± √((-10)^2 - 4*(1/2)(100 - 100/x))) / (2(1/2))
Simplifying further:
t = (10 ± √(100 + 200/x)) / 1
t = 10 ± √(100 + 200/x)
Therefore, the expression for t in terms of x is t = 10 ± √(100 + 200/x).
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Natalie invests $2,000 into a savings account
which earns 11% per year. In 20 years, how
much will Natalie's investment be worth if
interest is compounded monthly? Round to the
nearest dollar.
Answer:
We can use the formula for compound interest to find the future value (FV) of Natalie's investment:
FV = P * (1 + r/n)^(n*t)
Where:
P is the principal amount (the initial investment), which is $2,000 in this case
r is the annual interest rate as a decimal, which is 11% or 0.11
n is the number of times the interest is compounded per year, which is 12 since interest is compounded monthly
t is the number of years, which is 20
Substituting the values into the formula, we get:
FV =
2
,
000
∗
(
1
+
0.11
/
12
)
(
12
∗
20
)
�
�
=
2,000 * (1.00917)^240
FV = $18,255.74
Therefore, after 20 years of compounded monthly interest at a rate of 11%, Natalie's investment of 2,000 will be worth approximately 18,256.
Answer:
$17,870
Step-by-step explanation:
You must use the formula for compound interest.
A = P(1 + r/n)^nt
I suggest you look it up at some point so that you can do these more easily in the future!
On a coordinate plane, a point is 4 units to the left and 1 unit down.
For the point shown:
The x-coordinate is
.
The y-coordinate is
.
The point is in quadrant
.
.
The point has an x-coordinate of -4 and a y-coorindate of -1, and it is on the third quadrant.
In which quadrant is the point?First, remember that for a point (x, y):
if x >0, y > 0, then the point is in quadrant I.if x <0, y > 0, then the point is in quadrant II.if x < 0, y < 0, then the point is in quadrant III.if x >0, y < 0, then the point is in quadrant IV.For the point that is 4 units to the lefft and 1 unit down (of the origin) it is written as:
(-4, -1)
Then we can see that this point is on the quadrant III.
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PLEASE ANSWER ASAP!!!!!!!!! WILL GIVE BRAINLIEST ANSWER!
Rewrite the expression in the form 9^n.
9 . 9^2 =
Answer:
9^3
Step-by-step explanation:
9* 9^2
9*9(9) = 9^3
We could also look at it as
9^1 * 9^2
We know that a^b * a^c = a^(b+c)
9^(1+2) = 9^3
Individual gas mileages (in miles per gallon) of Model Extra SS (Extra Super-Sporty) sedans are normally distributed with a population mean of 20 and a population standard deviation of 2. Based on these information, if you bought a Model Extra SS sedan, what is the probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5
Answer: 0.1974
Step-by-step explanation:
Let X be a random variable that denotes the gas mileage (in miles per gallon) of the individual sedan.
Given: Population mean: \(\mu=20\)
Standard deviation: \(\sigma=2\)
The probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5:
\(P(19.5<x<20.5)=P(\dfrac{19.5-20}{2}<\dfrac{x-\mu}{\sigma}<\dfrac{20.5-20}{2})\\\\=P(-0.25<z<0.25)=2P(0.25)-1 [P(-z<Z<z)=2P(Z<z)-1]\\\\=2(0.5987)-1=0.1974\)
The required probability=0.1974
I had $370.00. My Mom gave $150.00. My Dad gave $150.00. My Aunt and Uncle gave me $100.00. I had another $30.00. How much did I have? I will delete the right answers.
Answer:400
Step-by-step explanation:
3x-5x+2y-1y+4- -7+3xy+1xy
Name the sampling method used in each of the following situations:
a. A woman in the airport is handing out questionnaires to travelers asking them to evaluate the airport's service. She does not ask travelers who are hurrying through the airport with their hands full of luggage, but instead asks all travelers who are sitting near gates and not taking naps while they wait.
b. A teacher wants to know if her students are doing homework, so she randomly selects rows two and five and then calls on all students in row two and all students in row five to present the solutions to homework problems to the class.
c. The marketing manager for an electronics chain store wants information about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out asking for information about age, as well as about other variables of interest.
d. The librarian at a public library wants to determine what proportion of the library users are children. The librarian has a tally sheet on which she marks whether books are checked out by an adult or a child. She records this data for every fourth patron who checks out books.
e. A political party wants to know the reaction of voters to a debate between the candidates. The day after the debate, the party's polling staff calls 1,200 randomly selected phone numbers. If a registered voter answers the phone or is available to come to the phone, that registered voter is asked whom he or she intends to vote for and whether the debate changed his or her opinion of the candidates.
Answer:
a) Convenient
b) Cluster
c) Stratified
d) Systematic
e) Random
Step-by-step explanation:
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
Situation a:
Asks all from a single group(sitting passengers), that is, convenint sample.
Situation b:
First she separates the students by row, then from each row, she chooses all students. So this is Cluster sampling.
Situation c:
The manager separates the stores by location, and then in each location, random customers are chosen. This is an example of Stratified sampling.
Situation d:
Marks for every fourth patron, that is, every 4th element. So Systematic sampling.
Situation e:
People chosen at random, so Random sampling.
Review the graph of function f(x), which is defined for –4 < x ≤ 2.
On a coordinate plane, a curve starts at open circle (negative 4, 5), curves down to (negative 2, negative 4), and then curves up through (0, negative 1) to closed circle (2, 2).
Which table identifies the left-hand and right-hand limits at the endpoints?
Limit of f (x) as x approaches negative 4 minus DNE
Limit of f (x) as x approaches negative 4 + DNE
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus 2
Limit of f (x) as x approaches negative 4 minus 5
Limit of f (x) as x approaches negative 4 + 5
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus 2
Limit of f (x) as x approaches negative 4 minus DNE
Limit of f (x) as x approaches negative 4 + 5
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus DNE
Limit of f (x) as x approaches negative 4 minus 5
Limit of f (x) as x approaches negative 4 + DNE
Limit of f (x) as x approaches 2 minus DNE
Limit of f (x) as x approaches 2 plus 2
Answer:
C
Step-by-step explanation:
Edge 2020
Answer:Dne, 5,2,dne
Step-by-step explanation:
6. find the five-number summary
The solution to find the five number summary shown below.
What is five number summary?When conducting descriptive analyses or conducting an initial analysis of a sizable data set, a five-number summary is particularly helpful. The maximum and minimum values in the data set, the lower and upper quartiles, and the median make up a summary's five values.
To find a five number summary we have follow:
Sort the numbers from smallest to largest in ascending order.The smallest number on the list is the minimum.The greatest number in the list is the maximum.The middle of the list is where you'll find the median.The median of the first half of the data makes up the lower quartile.Learn more about five number summary here:
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A property has been assessed at $225 000. The mill rate is 14.5. To find the property tax, you would multiply the mill rate by: *
a) 0.10
b) 0.001
c) 0.01
d) 0.0001
To find the property tax, you would multiply the mill rate by 0.01
To find the property tax, you would multiply the assessed value of the property by the mill rate.
Given that the assessed value is $225,000 and the mill rate is 14.5, we need to multiply these two values to calculate the property tax.
Property Tax = Assessed Value × Mill Rate
Property Tax = $225,000 × 14.5
To simplify the calculation, we can convert the mill rate to a decimal by dividing it by 1,000.
Mill Rate = 14.5 ÷ 1000 = 0.0145
Property Tax = $225,000 × 0.0145
Property Tax = $3,262.50
Therefore, to find the property tax, you would multiply the mill rate by 0.01 (option c).
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