Answer: 110 degrees
Step-by-step explanation:
Rotations are rigid motions and thus preserve angle measure.
a study of the annual population of toads in a county park shows the population, S(t), can be represented by the function S(t) = 152(1.045)^t, where the t represents the number of years since the study started. based on the function, what is the growth rate?
Answer: 0.045 is the growth rate.
Step-by-step explanation:
A generic exponential growth function can be written as:
f(t) = A*(1 + r)^t
where A is the initial amount.
t is the unit of time.
r is the rate of growth.
For example if we have an increase of 10% per year, with an initial population of 100 we have that:
A = 100, r = 10%/100% = 0.10, t = number of years.
the equation will be:
f(t) = 100*(1 + 0.10)^t
Now, in this case the equation is:
S(t) = 152*(1.045)^t
We can write this as:
S(t) = 152*(1 + 0.045)^t
Then 152 is the initial amount and 0.045 is the growth rate.
compare1/2 with 3/4 using (<>=)
Answer: 3/4 is greater than 1/2
>
Step-by-step explanation:
Each side length of a triangle is 4 cm. What type of triangle is it?
☐ right
□acute
Equilateral
Isosceles
Answer: Equilateral
Step-by-step explanation:
It's equilateral because it says that each side of the triangle is 4cm. In simple words, all the sides of triangle are equal. Such a triangle is called an equilateral triangle.
Hope you understood.
On November 1st, Halloween candy is discounted 60%. If the original price of a bag of candy corn was $5, what is the final price of the candy, including the discount and a 10% sales tax?
Answer:
$2.20
Step-by-step explanation:
Original price (before discount and before tax): $5
Discount is 60%.
Amount of discount is: 60% of $5 = 0.6 × $5 = $3
Price after 60% discount: $5 - $3 = $2
Tax is 10%.
Amount of tax is: 10% of $2 = 0.1 × $2 = $0.20
Final price = price after discount + tax = $2.00 + $0.20 = $2.20
A percentage is a way to describe a part of a whole. The final price of the candy, including the discount and a 10% sales tax is $2.2.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Given that the cost of the candy is $5 and a 60% discount is given on the candy. Therefore, the price of the candy after the discount will be,
Discounted price = Price - 60% of price
= $5 - 0.60($5)
= $5 - $3
= $2
Now, on the price of the candy 10% sales tax will be added. Therefore, the Price of the candy after adding Tax will be,
Taxed price = Discounted price + 10% of discounted price
= $2 + 0.10($2)
= $2 + $0.2
= $2.02
Hence, the final price of the candy, including the discount and a 10% sales tax is $2.2.
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David is buying a cheese wheel priced at $14 before tax. The store charges 8% sales tax.
What is the total price, including tax, David pays for the cheese wheel?
Answer:
$15.12
Step-by-step explanation:
1. Find the total amount of sales tax. This can be done by multiplying the before tax price by the sales tax percentage.
14 x 8% = 1.12
2. Add the sales tax amount back to the price.
14 + 1.12 = $15.12
Dana works at a flower shop. One day she received a delivery of flowers and 30% of the flowers were roses. There were 240 roses. What percent of the flowers were not roses?
Answer:
800
Step-by-step explanation:
I started off with putting 240 over x and 30 over 100. Next I multiplied 240 with 100 and got 24000. Then I divided that with 30 and got 800 as my answer.
Hope this helps :)
Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number.
Solve for x and graph the answer on a number line
2
The solution to the system of inequalities in interval notation is [-2, 1].
How to solve the system of inequalities?Based on the information provided in the image below, we have the following system of inequalities;
-12 < 3x - 6
-3 ≥ 3x - 6
By adding 6 to both sides of the equation (inequality), we have;
-12 < 3x - 6
-12 + 6 < 3x - 6 + 6
-6 < 3x
-2 < x
x > -2 (flip)
-3 ≥ 3x - 6
-3 + 6 ≥ 3x - 6 + 6
3 ≥ 3x
1 ≥ x
x ≤ 1
Therefore, the solution to the system of inequalities is given by:
-2 < x ≤ 1
In interval notation, we have [-2, 1].
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
PLEASE ANSWER!!!
What is an equation for this line?
A)y=x
B)y = -x
C)y=1
D)x = 0
there are 25 student in a class. five of then scored A and 10 of them score B while the other scored C for Biostatistics. if a student is selected at random, calculate the probability that the selected student scored A or B in biostastics.
There is a 60% probability that a randomly selected student from the class scored either an A or B in Biostatistics.
To calculate the probability that a randomly selected student scored either an A or B in Biostatistics, we need to consider the number of students who scored A and B and divide it by the total number of students in the class.
Given that there are 25 students in the class, 5 of them scored an A and 10 scored a B. To calculate the probability, we add the number of students who scored A (5) to the number of students who scored B (10):
Number of students who scored A or B = Number of students who scored A + Number of students who scored B = 5 + 10 = 15.
Therefore, the probability that a randomly selected student scored A or B
in Biostatistics is:
Probability = Number of students who scored A or B / Total number of students = 15 / 25 = 0.6 or 60%.
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How do i solve it with steps pls
Answer:
Step-by-step explanation:
We know the the total of angles for a triangle is 180 degrees.
So in this case we'd want to set up adding all of our angles and setting them equal to 180
17 + 126 + b = 180
then solve for b
143 + b = 180
b = 37 degrees
So the answer would be 37 degrees for angle b
What are you primarily doing when you reconcile your checking account?
a.
Making sure the bank spelled your name properly.
b.
Making sure that your records match your bank’s records.
c.
Writing down the transactions that your bank automatically records so you don’t have to.
d.
Calling the bank to check the dates on each transaction.
Answer:
Its B
Step-by-step explanation:
Reconciliation is an accounting process that compares two sets of records to check that figures are correct and in agreement
Hope this helps
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What kind of building material has the cheapest premiums?
helllllllllllllllllllllp me
Answer:
well theres prefabricated panel, concrete sheets, reclaimed wood, bamboo, brick those are the cheapest materials you could use
Step-by-step explanation:
Please answer the question and provide me with the coordinates and the reflection across the axis.
Given the coordinates of the trapezoid FGHI
\(F(-5,-2),G(-2,-2),H(0,-6),I(-8,-6)\)We will reflect the trapezoid over the y-axis
The rule of reflection is:
\((x,y)\rightarrow(-x,y)\)So, the coordinates of the image F'G'H'I' will be as follows:
\(\begin{gathered} F^{\prime}\colon(5,-2) \\ G^{\prime}\colon(2,-2) \\ H^{\prime}\colon(0,-6) \\ I^{\prime}\colon(8,-6) \end{gathered}\)The figure will be as shown in the following picture:
if a pound of turkey costs $0.72, how much will q pounds cost?
Answer:
0.72q
Step-by-step explanation:
q is the variable for the pounds of turkey so if a pound is $0.72 you would need to multiply each pound represented by a by .72
for example 1 pound is .72(1) = .72
2 pounds is .72(2) = 1.44
and so on.
Area of composite shapes, There is a pair of parallel sides in the following shape.
What is the area of the shape?
The following form has two parallel sides, and, in accordance with the provided assertion, its area is 21 cm².
What does mathematicians mean by area?Area is the entire amount of space occupied by a flattened (2-D) surface or form of an item. The area of a planar figure is the space that its perimeter encloses. The quantity of unit rectangles that completely encircle a closed figure's surface is its area. Square units such as cm² and m² are used to measure area.
The ratio will also be 1/2 * (bases 1 + base 2) * length since it is a trapezium.
So, 1/2 * ( 9+5) * 3
= 1/2 * 14 * 3
= 1/2 * 42
= 21 cm²
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use unit rates to determine the better buy and provide the unit price for your answer. round to the nearest hundredth, if necessary. $17.49 for 20 AA batteries or $42.58 for 48 AA batteries
Given the cost of some batteries as;
\(\begin{gathered} \text{ \$17.49 for 20 AA batteries} \\ \text{or \$42.58 for 48 AA batteries} \end{gathered}\)We can find out which one of the two would be the better buy, using the formula below.
\(\text{Unit price =}\frac{Total\text{ cost}}{\text{Number of batteries}}\)For Option A,
\(\text{Unit Price = }\frac{17.49}{20}=\text{ \$0.875}\)For Option B
\(\text{Unit price =}\frac{42.58}{48}=\text{ \$0.887}\)Answer:
If we compare both options, Option A is the better buy, because the unit price is lower than option B. The unit price for option A is $0.875
Question 7 of 10
Use the elimination method to solve the system of equations. Choose the
correct ordered pair.
5x + 3y = 31
2x + 3y = 25
O A. (5,2)
O B. (5,3)
O C. (2,7)
OD. (2,3)
Answer:
The answer is (2,7)
Step-by-step explanation:
Grandma has 4 bags of soil for her flower pots each flower pot needs 3/4 of a bag of soil how many flower pots can she fill
Answer:
she can fill 5 pots and have 1/3 bag left over
Step-by-step explanation:
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5500 to rent trucks plus an additional fee of $200.25 for each ton of sugar. The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar.
The computation shows that the tons of sugar when they'll have same price is 18 tons.
How to compute the value?The first company charges $5500 to rent trucks plus an additional fee of $200.25. Thai will be:
= 5500 + (200.25 × s)
= 5500 + 200.25s
where s = tons of sugar
The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar. This will be:
5041 + 225.75s
Then we will equate both of them. This will be:
5500 + 200.25s = 5041 + 225.75s
5500 - 5041 = 225.75d - 200.25s
459 = 25.5s
s = 459/25.5
s = 18
At 18 tons, they'll have same price.
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The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5500 to rent trucks plus an additional fee of $200.25 for each ton of sugar. The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar. For want mount if sugar do they charge the same price.
You measure 50 textbooks' weights, and find they have a mean weight of 37 ounces. Assume the population standard deviation is 5.2 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places
Answer:
90% confidence interval for the true population mean textbook weight is [35.79 ounces , 38.21 ounces].
Step-by-step explanation:
We are given that you measure 50 textbooks' weights, and find they have a mean weight of 37 ounces.
Assume the population standard deviation is 5.2 ounces.
Firstly, the Pivotal quantity for 90% confidence interval for the population mean is given by;
P.Q. = \(\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }\) ~ N(0,1)
where, \(\bar X\) = sample mean weight = 37 ounces
\(\sigma\) = population standard deviation = 5.2 ounces
n = sample of textbooks = 50
\(\mu\) = true population mean textbook weight
Here for constructing 90% confidence interval we have used One-sample z test statistics as we know about population standard deviation.
So, 90% confidence interval for the population mean, \(\mu\) is ;
P(-1.645 < N(0,1) < 1.645) = 0.90 {As the critical value of z at 5%
level of significance are -1.645 & 1.645}
P(-1.645 < \(\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }\) < 1.645) = 0.90
P( \(-1.645 \times {\frac{\sigma}{\sqrt{n} } }\) < \({\bar X-\mu}\) < \(1.645 \times {\frac{\sigma}{\sqrt{n} } }\) ) = 0.90
P( \(\bar X -1.645 \times {\frac{\sigma}{\sqrt{n} } }\) < \(\mu\) < \(\bar X +1.645 \times {\frac{\sigma}{\sqrt{n} } }\) ) = 0.90
90% confidence interval for \(\mu\) = [ \(\bar X -1.645 \times {\frac{\sigma}{\sqrt{n} } }\) , \(\bar X +1.645 \times {\frac{\sigma}{\sqrt{n} } }\) ]
= [ \(37-1.645 \times {\frac{5.2}{\sqrt{50} } }\) , \(37+1.645 \times {\frac{5.2}{\sqrt{50} } }\) ]
= [35.79 , 38.21]
Therefore, 90% confidence interval for the true population mean textbook weight is [35.79 ounces , 38.21 ounces].
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One of the sides of a pentagon has length 12. Which of the following points, when paired with (2, 3), will make a side equal to this length?
A) (14, 15)
B) (2, -9)
C) (-2, -3)
D). (-9, 2)
The correct option for the given sum is option B. The point (2,-9) paired with (2, 3), will make a side equal to this length.
Let the other point of the pentagon will be M(n, o).
The given point be A (a, b)
Also given one of the sides of a pentagon has length 12.
Now, we need to find the distance between the two points,
Distance between two points: |AM| = √\((a-n)^2+(b-o)^2\)
Now,
\(12 = \sqrt{(2-n)^2+(3-o)^2}\)
\((12)^2\) = \((2-n)^2+(3-o)^2\)
\((2-n)^2+(3-o)^2\) = 144 ----------------------------- eq (1)
Now, check every point for the values to match with equation (1)
Option A: \((2-14)^2+(3-15)^2\) = 288. So the option is false.
Option B:
\((2-2)^2+(3-(-9))^2\) =114
0+114 =114
Therefore option B is correct. The other point is (2,-9).
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W/o Alemachesh starts a business with Birr 45000. Ato Zeberga joins in the business after 3 months with Birr 30000. What will be the ratio in which they should share the profit at the end of the year? A. 1:2 B. 2:1 C. 1:3 D. None of the above
The ratio in which they should share the profit at the end of the year is D. Nine of the above.
How to calculate the ratio?Ratio demonstrates how many times one number can fit into another number. Ratios contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point to another data point.
Since W/o Alemachesh starts a business with Birr 45000. Ato Zeberga joins in the business after 3 months with Birr 30000.
The ratio will be:
= 45000 / 30000
= 3/2
= 3:2
The option isn't given. Therefore, the correct option is D.
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Factor the expression using the GCF.
60−36 = ?
Answer:
12
Step-by-step explanation:
I think this will be the answer
Answer:
the GCF of 36 and 60 is 2 × 2 × 3 = 12.
Step-by-step explanation:
Prime factorization of 36 and 60 is (2 × 2 × 3 × 3) and (2 × 2 × 3 × 5) respectively. As visible, 36 and 60 have common prime factors. Hence, the GCF of 36 and 60 is 2 × 2 × 3 = 12.
Which expressions describe the end behaviors of the function, f(x)= (3.25)^x+6, modeled by the graph? An exponential curve on a coordinate plane with horizontal x axis ranging from negative 10 to 10 in increments of 1. The vertical y axis ranges from negative 4 to 14 in increments of 1. The curve begins infinitely close to the line y equals 6 in the second quadrant. The curve increases through begin ordered pair 0 comma 7 end ordered pair. The curve passes through begin ordered pair 1 comma 9.25 end ordered pair and exits the first quadrant.
The expression that describe the end behavior of the expression f(x)= (3.25)^x + 6 is The curve begins infinitely close to the line y equals 6 in the second quadrant.
What is end behavior as used in math?The behavior of the graph of a function at its "ends" on the x-axis is referred to as the end behavior of a function, f.
For example, if we look at the right end of the x-axis (as x approaches + ∞) and the left end of the x-axis (as x approaches - ∞), the end behavior of a function explains the trend of the graph.
The graph of the function is attached and from the graph it shows that the graph continued to tend towards towards line y = 6
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1. Match the graphs of the derivatives to the graphs of their functions. Use what you know about the meaning of the derivative, and use key points on both graphs to be sure your answers make sense.
A) The given function is,
\(f(x)=e^x\)Its derivative will be,
\(f^{\prime}(x)=e^x\)The graph of the derivative can be drawn as,
Thus, option (G) is correct for (A).
(B).
The given function is,
\(\begin{gathered} f(x)=\ln \lvert x\rvert \\ f^{\prime}(x)=\frac{1}{x} \end{gathered}\)The graph of the derivative (1/x) can be drawn as,
Thus, option (F) is correct for (B).
(C) The given function is,
\(\begin{gathered} f(x)=ln\lvert\sec x\rvert \\ f^{\prime}(x)=\frac{\sec x\tan x}{\sec x}=\tan x \end{gathered}\)The graph of the derivative i.e the tanx can be drawn as,
Thus, the option (E) is correct for (C).
(D) The given function is,
\(\begin{gathered} f(x)=\ln \lvert\sec x+\tan x\rvert \\ f^{\prime}(x)=\frac{1}{\sec x+\tan x}\times(\sec x\tan x+\sec ^2x) \\ f^{\prime}(x)=\sec x \end{gathered}\)The derivative of the function is secx whose graph can be drawn as,
Thus, option (H) is the correct option for (D).
during a single day at radio station WMZH,the probability that a particular song is played in 3/8.what is the probability that this thing will be played on exactly 2 days out of 3 days ?round to your nearest thousandth
The probability that the song will be played on exactly 2 days out of 5 days is approximately 0.164.
To find the probability that a particular song is played exactly 2 days out of 5 days at radio station WMZH, we can use the binomial probability formula.
The binomial probability formula is given by P(x) = C(n, x) * p^x * (1-p)^(n-x), where P(x) is the probability of x successful outcomes, n is the number of trials, p is the probability of a successful outcome on a single trial, and C(n, x) represents the binomial coefficient, which is the number of ways to choose x items from a set of n items.
In this case, we want to find the probability of the song being played exactly 2 days out of 5 days, so x = 2, n = 5, and p = 3/8.
Using the formula, we have:
P(2) = \(C(5, 2) * (3/8)^2 * (1 - 3/8)^(^5^-^2^)\)
C(5, 2) = 5! / (2! * (5-2)!) = 10
P(2) = 10 * (3/8)^2 * (5/8)^3
P(2) ≈ 0.164 (rounded to three decimal places)
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How many solutions dose x+y=10 x+y=12
Answer:
There are infinite solutions.
Think about it. The equation says essentially:
12 + any number = 12 + any number.
y + 12 = y + 10 + 2
y + 12 = y + 12
y - y = 12 - 12
0 = 12 - 12
0 = 0
Step-by-step explanation:
How much string would you need to go around the bottom of a hat shaped like a cone if the radius is 4 inches? (Use 3.14 for π)
Answer:
25.12 inches
Step-by-step explanation:
To find the circumference or the perimeter of a circle it is the diameter times pi. (pi = 3.14) Or you can do radius times 2 times pi.
Answer is 4 times 2 times 3.14 which is 25.12
What is the area of ΔABC given m∠B = 95°, a = 22 feet, and c = 17 feet?use area = 1/2 ac sin B
area = 1/2 ac sin B
1/2 ( 22) ( 17) * (sin 95)
187 sin 95
186.2884085 ft^2