1 point
3. A city had a population of 150,000 people in 1990. The population
growth of the city is represented by the equation p = 5t + 150, where p is
the population in thousands and t is the time in years since 1990. In what
year will the population have doubled? *
1993
2000
2020
2030
4. What type of correlation is represented by the data in the scatter plot? *
1 point
Answers
150 = 5t
30 = t
1990+ 30 = 2020
Related Questions
plz help if ya know math
need an answer asap!!
Answers
hope this helps cant guarantee if its 100% legit hahaha
All together Maria and Nick had $12. After Maria spent 30% of her money and Nick spent 50 % of his money, Maria and Nick were left with the same amount. How much money did Nick have to begin with?
Answers
Answer:
$4.5
Step-by-step explanation:
Let the amount of money
Maria had = x
Nick had = y
All together Maria and Nick had $12.
= x + y = 12
x = 12 - y
After Maria spent 30% of her money and Nick spent 50 % of his money, Maria and Nick were left with the same amount.
30% of x = 50% of y
30/100 × x = 50/100 × y
0.3x = 0.5y
We substitute 12 - y for x above
0.3(12 - y) = 0.5y
3.6 - 0.3y = 0.5y
3.6 = 0.5y + 0.3y
3.6 = 0.8y
y = 3.6/0.8
y = $4.5
Therefore, in the beginning, Nick originally had $4.5
-cos(x y)sin(y) sin(x y)cos(y)
Answers
On the left side of the expression, the first term is cos(x y)sin(y) and the second term is sin(x y)cos( y ).cos(x y)sin(y) sin(x y)cos(y) = cos(x y)sin(y) − sin(x y)cos(y)
We can use the trigonometric identity sin(A)cos(B) - cos(A)sin(B) to simplify the expression.
On the left side of the expression, the first term is cos(x y)sin(y) and the second term is sin(x y)cos( y ).
We can rearrange the terms and apply the identity, which gives us:
On the left side of the expression, the first term is cos(x y)sin(y) and the second term is sin(x y)cos( y ).
cos(x y)sin(y) − sin(x y)cos(y)
the complete question is :
What is the result of cos(x y)sin(y) - sin(x y)cosy?
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if the individuals in generation iii labeled 1 and 2 were to marry and have children, what is the probability that their first child will have the kidney disease?
Answers
The probability that their first child will have kidney disease is 1/8.
What is probability?
The proportion of favorable cases to all possible cases is used to determine how likely an event is to occur.
Here, we have
Both parents must be heterozygous to have a 1/4 chance of having an
affected child. Parent 2 is heterozygous (her father was homozygous recessive, but she has unaffected).
For the child to have the disease, both Parent 1 and Parent 2 would need to be heterozygous
There is a 50% chance of this for Parent 1 and a 100% chance of this for Parent 2 and then, there is a 25% chance that their first child will be affected:
50%× 100% × 25% = 12.5%
1/2 × 1/4 = 1/8
Hence, the probability that their first child will have kidney disease is 1/8.
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80÷1.94≈
Please help me
Answers
Answer:
\(\frac{80}{1.94}\)
Step-by-step explanation:
80 ÷ 1.94 = \(\frac{80}{1.94}\)I hope this helps!
What does 12/18 simplify to
Answers
Answer:12/18 = 6/9 = 2/3
Step-by-step explanation:
Given a function f(x)=|x+1|-|x -2|
How many solutions has f(x) = a, in respect of a?
If a E {-3, 3}, number of solutions is
if a E (-3, 3) number of solutions is
if a E (-infinity, -3) U (3,infinity) number of solutions is
Answers
Answer:
Step-by-step explanation:
\(f(x)=/x+1/-/x-2/\\a=/x+1/-/x-2/\\\text{square both sides}\\a^{2}={(x+1)}^{2}+{(x-2)}^{2}-2(x+1)(x-2)\\a^{2}=x^{2}+2x+1+x^{2}-4x+4-2x^{2}+2x+4\\a^{2}=9\\a=\sqrt{9}\\a=+3\text{ or }-3\)
\(\text{if }a \in \{-3, 3\},\text{the number of solutions is 2}\)
\(\text{if }a \in \{-\infty, -3\}\bigcup\{\infty, 3\},\text{it is just like saying from infinity to infinity, which is still 2}\)
Answer:
a=(x+1)-(x-2)
=x-x+1+2
a=3
An anthropologist visits an igloo with a circular floor. While there, she measures it and calculates that it has a circumference of 18.84 yards. What is the floor's diameter?
Answers
Answer:
The diameter of the floor is 6 yards
Step-by-step explanation:
Here, we are to calculate the diameter of a circular floor that has a circumference of 18.84 yards
Mathematically,
C = π * D
where C is the circumference
Plugging the values of the circumference , we have ;
18.84 = 22/7 * D
7 * 18.84 = 22D
D = (7* 18.84)/22 = 5.99 which is approximately 6 yards
Instructions: Find the measure of the indicated angle to the nearest degree.
?
Answers
Answer:
? = 14
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp /adj
tan ? = 8/33
Taking the inverse tan of each side
tan ^-1 ( tan ?) = tan ^-1 ( 8/33)
? =13.62699
To the nearest degree
? = 14
Answer:
14
Step-by-step explanation:
We can solve for either x or y first, but we will choose to solve for x first. The side with length of 8 is opposite the angle x and the side with length of 33 is adjacent. Since we have opposite and adjacent sides, we will use the tangent ratio.
tan(x)= opposite/adjacent
tan(x)= 8/33
To find the measure of angle x, we will use the inverse tan function.
x=tan⁻¹(8/33)= 14
which is the function represented below
Answers
Answer:
f(x)= x + 5
Step-by-step explanation:
The easiest way to find this is by plugging the values for x and f(x) into each equation until you find one where all number fit.
Write an expression for the nth term of the sequence. (your formula should work for n = 1, 2, .) 1 2 , 1 3 , 1 7 , 1 25 , 1 121 ,
Answers
The nth term of the sequence can be expressed as: \(1 / (n^2)\)
The given sequence is: 1, 2, 1/3, 1/7, 1/25, 1/121, ...
To find an expression for the nth term of this sequence, we can observe that each term is the reciprocal of a specific pattern of numbers: 1, 2, 3, 4, 5, 6, ...
Notice that the numerator of each term follows a pattern of increasing consecutive positive integers: 1, 2, 3, 4, 5, 6, ...
The denominator of each term follows a pattern of perfect squares: \(1^2, 2^2, 3^2, 4^2, 5^2, 6^2, ...\)
Therefore, the nth term of the sequence can be expressed as:
\(1 / (n^2)\)
So, the expression for the nth term of the sequence is \(1 / (n^2)\). This formula will work for n = 1, 2, 3, and so on.
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The coordinates for a quadrilateral are A(3, 5), B(7, 5), C(8, 3) and D(4, 3). Determine the type of quadrilateral.
Group of answer choices
Rectangle
Parallelogram
Square
Rhombus
Answers
Answer:
Rhombus
Step-by-step explanation:
Just graph on the coordinate grid.
Answer:
Parallelogram
Step-by-step explanation:
You have to put the coordinates in a Cartesian diagram and connecting the points you will find the figure
ly| ≤3
Are the lines on graph at 3 and -3 also part of the answer?
Answers
Answer:
Yes, the lines on the graph at 3 and -3 a part of the solution,
Step-by-step explanation:
The inequality \(|y| \leq 3\) contains all the values of \(y\) 3 units from the origin including the values 3 and -3.
Thus, the lines on the graph y =-3 and y = 3 are the part of the solution.
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Why might working with n a commission basis make dealing with finances more difficult?
Answers
Answer: The commission is paid according to sales amounts that are likely to vary from month to month.
Step-by-step explanation: Instead of a salary that is paid in the same amount on a schedule, the commission may be very large one month and very small or zero at other times.
Financial planning usually includes monthly payments that and predictable expenses for food, transportation, utilities, etc. The person who earns a commission must remember to set aside some of the "extra" to cover these expenses. And be prepared to work more or harder at some times to make sales when they don't come easily.
The amount of sleep that elementary school children get per night follows a Normal distribution with a mean of 9.5 hours and a standard deviation of 0.55 hours. (a) Find the proportion of elementary school children who get between 9 and 10 hours of sleep per night. Sketch the Normal curve and shade the area under the curve that is the answer to the question. (b) Is it unusual for an elementary school student to get at least 12 hours of sleep? Justify your answer.
Answers
The amount of sleep that elementary school children get per night follows a Normal distribution with a mean of 9.5 hours and a standard deviation of 0.55 hours.
We are tasked with finding the proportion of children who get between 9 and 10 hours of sleep per night and determining if it is unusual for a student to get at least 12 hours of sleep.
(a) To find the proportion of children who get between 9 and 10 hours of sleep, we need to calculate the area under the Normal curve between these two values. We can use the z-scores to find the corresponding areas.
First, we standardize the values of 9 and 10 using the formula: z = (x - μ) / σ.
For 9 hours: z = (9 - 9.5) / 0.55 ≈ -0.909.
For 10 hours: z = (10 - 9.5) / 0.55 ≈ 0.909.
Using a z-table or statistical software, we can find the area between these z-scores. The area represents the proportion of children who get between 9 and 10 hours of sleep per night.
(b) To determine if it is unusual for an elementary school student to get at least 12 hours of sleep, we can again use z-scores.
For 12 hours: z = (12 - 9.5) / 0.55 ≈ 4.55.
An extreme z-score indicates an unusual observation. Since a z-score of 4.55 is significantly far from the mean, it suggests that getting at least 12 hours of sleep is indeed unusual for an elementary school student based on the given distribution.
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Find I. Choose the right answer.
Amount Financed (m) = $1,100
Number of Payments per year (y) = 12
Number of Payments (n) = 18
Total Interest (c) = $88.18
I = %.
Answers
The annual interest rate for the loan is approximately 10.1%.
What is the annual interest rate?Interest rate is the amount charged over and above the principal amount by the lender from the borrower. The formula to use to get the annual interest rate (I) is: I = (2 * 12 * c) / [(m) * (n + 1)]
Substituting given values:
I = (2 * 12 * $88.18) / [($1,100) * (18 + 1)]
= $2,116.32 / $20,900
= 0.1012
= 10.12%
Therefore, the annual interest rate is approximately 10.1%.
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-6(1+6x)<6(1-5x)
Help me plz
Answers
If you are solving for x, you can click on the pic, but if you are not, then this answer will be useless, hope it helps, you can always give me feedback!
HELP PLSPLS QUICKPLSSSSSSSSSSSS
Answers
Answer:
Step-by-step explanation:
11/12 - 5/8 = ? Make the denominator the same (multiply the first term by 2 and the second term by 3).
22/24 - 15/24 = ? Just simplify/solve. 22-15=7.
7/24
OPTION A = 7/24
what are the different types of geometric constraints that are applied to sketches, and what are their functions?
Answers
A bakery offers a sale price of $2.70 for 3 muffins. What is the price per dozen? The price per dozen muffins
Answers
Answer:
Step-by-step explanation:
i think your asnwer would be 14 dollers but im not to sure
hope this helps
i am so sorry if i am wrong
weights, in pounds, of eight students in a class are: student weight (in pounds) student 1 128 student 2 193 student 3 166 student 4 147 student 5 202 student 6 183 student 7 181 student 8 158 using the data above, what is the standard error of the sample mean? answer choices are rounded to the hundredths place.
Answers
The standard error of the sample mean is approximately 8.9 pounds.
What is standard error of the sample mean?
Simple division of the standard deviation by the square root of the sample size yields the SEM. By evaluating the sample-to-sample variability of the sample means, standard error determines the accuracy of a sample mean.
To find the standard error of the sample mean, we need to first find the sample mean weight of the students. To do this, we add up the weights of all the students and divide by the number of students:
(128 + 193 + 166 + 147 + 202 + 183 + 181 + 158) / 8 = 171.5
Next, we need to find the variance of the sample. The variance is a measure of the spread of the data around the mean, and is calculated as follows:
\(variance = ((weight - mean)^2) / (n-1)\)
where weight is the weight of each student, mean is the sample mean weight, and n is the number of students.
Plugging in the values from our data, we get:
variance = (128 - 171.5)^2 + (193 - 171.5)^2 + (166 - 171.5)^2 + (147 - 171.5)^2 + (202 - 171.5)^2 + (183 - 171.5)^2 + (181 - 171.5)^2 + (158 - 171.5)^2 / 7
= 1096.5
Finally, we can find the standard error of the sample mean by taking the square root of the variance and dividing by the square root of the number of students:
\(standard\ error = \sqrt{(variance / n)} \\\\= \sqrt{1096.5 / 8 )\\\\=8.9\)
So, The standard error of the sample mean is approximately 8.9 pounds.
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The writer came to be labeled ------- because she
isolated herself in her apartment, shunning outside
contact.
(A) a loner (B) a miser (C) a connoisseur
(D) a conspirator (E) an ingenue
Answers
The writer came to be labeled a loner (Option A) because she isolated herself in her apartment shunning outside contact.
What is sentence completion?Sentence completions test the skill to use the information observed in complex and incomplete sentences in order to correctly complete them.
It tests a candidate's vocabulary power and skill to follow the logic of sentences.
Now, given:
Option A is right since a loner is someone who avoids social interactions. Because the writer in this statement isolated herself in her apartment and avoided outside contact, option A is the best response.The other choices are incorrect since: Option B refers to someone who wants to spend no money or very little money on anything.Option C refers to a judge with experience, particularly in food tasting.Option D refers to a covert scheme devised by a group of individuals to do something wrong or harmful.Option E refers to simple-minded or naive women, particularly those who act such roles in dramas or movies.Hence, The writer came to be labeled a loner (Option A) because she isolated herself in her apartment shunning outside contact.
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Consider the following expression.
3x+8y+5
Select all of the true statements below.
Answers
Step-by-step explanation:
3x + 8y + 5
The true statements
5 is a constant
3x + 8y + 5 is written as a sum of three terms
3x and 5 are like terms
How can you use the distributive property to multiply a two-digit number by a one-digit number? Give an example and show your work.
Answers
Taking a two-digit number and breaking it into sum of any two possible numbers and applying the distributive property on multiplying with the one-digit number. We can obtain the result of the multiplication.
What do you mean by distributive property?This property states that multiplying the total of two or more addends by a number will produce the same outcome as multiplying each addend by the number separately and then adding the results together.
How Does the Distributive Property Work?When applying the distributive property formula, the outer term is multiplied by the terms contained within the brackets, and the terms are then added to obtain the solution. Let's attempt to solve 15(4 + 3). To find the solution, multiply 15 by 4 first, then by 3, and finally add the resulting numbers. Accordingly, 15 (4 + 3) = (15 4) + (15 3) = 60 + 45 = 105
to multiply 3 and 12.
break 12 into sum as 12= 8+4
now,
3*(8+4)
=3*8 + 3*4
=24+12
=36
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Joe has to get 80% overall in his 3 tests. He gets 60% in one of them. How much percentage does he need for both of the exams to get 80% overall?
Answers
Answer:
80%
90%
Step-by-step explanation:
BRAINLIEST PLEASE
Select all the correct locations on the image.
The revenue and cost functions for a product line of running shoes are shown on the graph. Which points on the graph are considered breakeven
points?
Total (dollars)
+5,000
+4,000
+3,000
-2,000/
+1,000
20
C(x)
40
60
80
Price per Shoe (dollars)
R(x)
100
120
Answers
The break-even points on the graph are the points where the revenue curve R(x) intersects the cost line C(x).
How to determine which points on the graph are considered breakeven points?
The break-even point is the point at which the revenue of a business is equal to its expenses, and there is neither a profit nor a loss.
Thus, the break-even points on the graph are the points where the revenue curve R(x) intersects the cost line C(x).
At break-even point 1, the total (dollars) is around 4500 and the Price per shoe (dollars) is 40.
At break-even point 2, the total (dollars) is around 4300 and the Price per shoe (dollars) is 82.
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For each function, identify the x-intercepts.
What is the x-intercept for each of those? Help
Answers
Answer:
1. (-4,0) and (-2,0)
2. (2,0)
3. (2,0)
4. (-6,0), (-2,0), (2,0), and (6,0)
Step-by-step explanation:
The x-intercepts are the points in which the line crosses the x-axis. Another word for this are the zeroes, because y=0 would be right on the x-axis, and finding the zeroes would be finding the points that cross y=0. Notice how the points listen on the answer are right on the x-axis of each graph; they intercept the x-axis.
Alice is going to make a cake for her mother's birthday. It will take 24 minutes to make the cake batter, and the cake needs to bake in the oven for 1 hour and 2 minutes. If Alice wants the cake to be out of the oven by 9:59 A.M., what is the latest time she can start making the cake batter?
Answers
The latest time Alice can start making the cake batter is 8:33 A.M
How to calculate the latest time ?Alice is making cake for her mother's birthday
It will take 24 minutes to make the cake batter
The cake also needs to be in the oven for 1 hour 2 minutes
The time needed to make the cake is
1 hour 2 minutes + 24 minutes
= 1 hour 26 minutes
The latest time to start making the cake batter is
9:59 - 1:26
= 8:33
Hence the latest time to start making the cake batter is 8:33 A.M
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what solid is represented by the net
Answers
Answer:
what net. there is no net
Step-by-step explanation:
Answer: triangular prism
Step-by-step explanation:
PLZ HELP ME, AND THANK YOU
