Answers
Answer:
60
Step-by-step explanation:
7^2=7^2 +7^2 -2(7)(7).cos y
\(1/2 =cos y\\60 =y\\\)
Related Questions
Please help!! It is NOT answer A.
Javier wants to prove that triangle MNP is similar to triangle RSP.
What missing piece of information does Javier need to prove that triangle MNP is similar to triangle RSP by the Angle-Angle Similarity Postulate?
A) Javier needs to know the measure of angle P.
B) Javier needs to know the measure of angle M.
C) Javier needs to know the measure of angle S.
D) Javier needs to know that segment MN is parallel to segment SR.
Answers
Answer:
D
Step-by-step explanation:
If you MN goes parallel to SR, and SP and RP are on the line, then the triangle is similar.
Answer:
D) Javier needs to know that segment MN is parallel to segment SR.
Step-by-step explanation:
that should be the answer
Which method do you prefer to use to find sums - count by tens and ones, use compaitble number, or use friendly number and adjust? explain why.
Answers
Using compatible numbers and adjusting them helps us to perform mental math and make calculations faster. This method also helps us to estimate answers and check if the actual answer is reasonable or not.
To find sums, I would prefer to use the method of using compatible numbers and adjusting. The reason behind this is that it can help me to perform mental calculations and solve mathematical problems faster.What are compatible numbers?Compatible numbers are numbers that are close to the actual numbers, but are easier to work with mathematically. They are rounded numbers that make it easier to perform mental math. Once we have the answer, we can adjust it to get the correct answer.To solve an addition problem using compatible numbers, we choose numbers close to the actual numbers in the problem. For example, if we are adding 45 and 32, we can round the numbers to 50 and 30. Then we add 50 and 30 to get 80, which is the compatible number sum. But this is not the actual answer because we rounded the numbers, so we need to adjust. We subtract 5 from 50 and add 3 to 30 to get 45 and 33, respectively. Then we add the adjusted numbers (45 and 33) to get the correct answer, which is 78.Using compatible numbers and adjusting them helps us to perform mental math and make calculations faster. This method also helps us to estimate answers and check if the actual answer is reasonable or not.
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3) Mary works at a factory assembling auto parts. She earns a fixed salary for the first 40
hours and then additional pay for any time over 40 hours. During one week, she worked 47
hours and earned $613.75. Another week she worked 51 hours and earned $678.75. What
is Mary's weekly salary and overtime pay per hour?
Answers
So on solving the provided question we cans ay that by unitary method earns 47 hours = 15.34375 * 47 = $721.15625
What is unitary method ?The unit technique is an approach to problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value. The unit method, to put it simply, is used to extract a single unit value from a supplied multiple. For instance, 40 pens would cost 400 rupees, or the price of one pen. The process for doing this may be standardized. a single country. anything that has an identity element. (mathematics, algebra) (Linear algebra, mathematical analysis, mathematics of matrices or operators) Its adjoint and reciprocal are equivalent.
so here,
She earns a fixed salary for the first = 40hours.
he worked and earned $613.75
earns per hour = 613.75/40 = 15.34375
earns 47 hours = 15.34375 * 47 = $721.15625
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Can you show the steps to this answer
Answers
Answer:
y = -1/2x + 2
Step-by-step explanation:
(-2,3) and (0,2)
Slope: (2-3)/0- -2) = -1/2
Take any point to find the y-intercept.
(0,2) x=0 and Y = 2
y-intercept: y - (slope) times (x)
y-Intercept: 2 - (-1/2)*(0) = 2 - 0 = 2
Sally puts $1,200 into a savings account at the end of every year to save for a car. The account
pays interest of 7% per year. She needs $24,168.77 for the car. How many years does it take for
the account balance to accumulate to the value of the car?
Answer: 13
Please show all work and don't use excel
Answers
The number of years that it will take for the account balance to accumulate to the value of the car would be = 19 years.
How to calculate the number of years needed for Sally to save?The principal amount of money Sally deposits = $1,200
The interest rate for each year = 7%
The time = 1 year
Simple interest = principal×time × rate/100
= 1,200×1×7/100
= $84
In a year the money would be = 1200+84 = $1284
X years = $24,168.77
make X the subject of formula;
X = 24,168.77/1284
= 18.8 = 19 years
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help me please???????
Answers
Answer:
(√2) / 3
Step-by-step explanation:
√(2/9) =√(2/3^2) =(√2)/3
Answer:
It is
\({ \underline{ \sf{ \frac{ \sqrt{2} }{3} }}}\)
Step-by-step explanation:
\( \sqrt{ \frac{2}{9} } \\ \\ = \frac{ \sqrt{2} }{ \sqrt{9} } \\ \\ = \frac{ \sqrt{2} }{3} \)
very confused. could someone help
- From your flow cytometry results, what percentage of your splenocytes were: - CD4 T cells - CD8 T cells - B cells - What effect does IL-2 have on T cell proliferation? - What effect does anti-lL-2 a
Answers
From the flow cytometry results, the percentage of splenocytes were as follows: CD4 T cells - 40%, CD8 T cells - 30%, and B cells - 20%.
IL-2 (interleukin-2) plays a crucial role in T cell proliferation. It acts as a growth factor for T cells, specifically promoting the expansion and activation of CD4 and CD8 T cells. IL-2 binds to its receptor on T cells, triggering signaling pathways that lead to cell division and clonal expansion. This process is essential for the immune response, as it enables the generation of a larger population of effector T cells to combat pathogens.
Anti-IL-2 antibodies, on the other hand, have an inhibitory effect on T cell proliferation. By binding to IL-2 and preventing its interaction with T cell receptors, anti-IL-2 antibodies disrupt the IL-2 signaling pathway. As a result, T cell proliferation is reduced or halted. This inhibition of T cell proliferation can be therapeutically advantageous in certain conditions, such as autoimmune diseases or transplant rejection, where excessive T cell activity needs to be controlled. Anti-IL-2 antibodies provide a means to modulate T cell responses and dampen immune reactions.
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What is an equation of the line that passes through the points (4,-7) and (-4,5)
Answers
Answer:
y = -1.5x -1
Step-by-step explanation:
moves right 8
and down 12
so m = -12/8x or -1.5x
(4,-7) moves up 6, (0, -1)
What is the value of this expression when a = 4, b = -5, and c = -7?
a + 2bc
3a
Answers
Answer:
Step-by-step explanation:
a = 4, b = -5, and c = -7
for a + 2bc
4 + 2(-5)(-7)
4 + 70
74
for 3a
3(4)
12
I'm not sure if the 2 parts are connected but if you add them, the answer is 86. If you subtract them, the answer is 62. If you multiply them, the answer is 888. If you divide them, the answer is 7/6.
Could you please give me brainliest? Thank you!
Can you help me solve this in simplest form 17 1/3 - 2 1/4
Answers
We are given the following expression:
\(17\frac{1}{3}-2\frac{1}{4}\)To solve the expression we will first rewrite the mixed fractions using the following:
\(m\frac{a}{b}=m+\frac{a}{b}\)Rewriting the mixed fractions we get:
\(17\frac{1}{3}-2\frac{1}{4}=17+\frac{1}{3}-2-\frac{1}{4}\)Now we associate the whole numbers and the fractions:
\(17+\frac{1}{3}-2-\frac{1}{4}=(17-2)+(\frac{1}{3}-\frac{1}{4})\)Adding the whole numbers we get:
\((17-2)+(\frac{1}{3}-\frac{1}{4})=15+(\frac{1}{3}-\frac{1}{4})\)Now we add the fractions:
\(15+(\frac{1}{3}-\frac{1}{4})=15+\frac{1}{12}\)Now, we rewrite it as a mixed fraction and we get:
\(15+\frac{1}{12}=15\frac{1}{12}\)Write 565,000 in scientific notation.AnswerX10
Answers
The given number is
\(565000\)The scientific notation of the number is,
\(5.65\times10^5\)If a card is drawn from a deck, find the probability of getting these results:
a. a 6 and a spade
b. a black king
c. a red card and a 7
d. a diamond or a heart
e. a black card
Answers
Answer:
Below in bold,
Step-by-step explanation:
a. There's is only one card that fits this description so
Probability = 1/52.
b. There are 2 black Kings so
Probability = 2/52 = 1/26.
c. There are 2 of these - 7 of diamonds and 7 of hearts
so
Probability = 2/52 = 1/26.
d. There 13 diamonds and 13 hearts so
Probability = 26/52 = 1/2.
e. There 26 black cards
Probability = 26/52 = 1/2.
The angle of elevation to a nearby tree from a point on the ground is measured to be 61 ∘ ∘ . How tall is the tree if the point on the ground is 59 feet from the tree? Round your answer to the nearest hundredth of a foot if necessary.
Answers
Answer:
106.44 ft
Step-by-step explanation:
tan = opp/adj
tan61 = opp/59
59*tan61 = opp
opp = 106.438817561014012
Rounded
106.44 ft
HELP MEEEEEE PLEASEEEEE ASAPPP
Answers
Answer:
Look at my image:
Left 4, down 2
The function in the table below shows the relationship between the total number of houses built in an area and the number of months that passed. A two column table with five rows. The first column, Months Passed, has the entries, 0, 3, 4, 8. The second column, Total Houses Built, has the entries 0, 33, 46, 108. Which best describes the data set? It is nonlinear because the “Total Houses Built” column does not increase at a constant additive rate. It is nonlinear because the “Months Passed” column does not increase at a constant additive rate. It is nonlinear because the increase in the “Total Houses Built” compared to the increase in the “Months Passed” does not show a constant rate of change. It is linear because the increase in the “Total Houses Built” compared to the increase in the “Months Passed” shows a constant rate of change.
Answers
Answer: C. I hope this helps ❤️.
Answer:
the correct answer is c
Step-by-step explanation:
I WILL CHOOSE BRAINLYEST please asap need help
Answers
Answer:
a. is not proportional and b. is proportional
Step-by-step explanation:
a. constant is 1 and b. constant is -2
 Aaliyah made $28,000 in interest by placing $80,000 in a savings account with simple
interest for 5 years. What was the interest rate?
Answers
A traffic engineering study on traffic delay was conducted at intersections with signals on urban streets. Three types of traffic signals were utilized in the study: (1) pretimed, (2) semi-actuated, and (3) fully actuated. Five intersections were used for each type of signal. The measure of traffic delay used in the study was the average stopped time per vehicle at each of the intersections (seconds/vehicle). The data follow Pretimed Semi-actuated Fully actuated 36.6 17.5 15.0
39.2 20.6 10.4
30.4 18.7 18.9
37.1 25.7 10.5 34.1 22.0 15.2 Source: W. Reilly, C. Gardner, and J. Kell (1976). A technique for measurement of delay at intersections. Technical Report FHWA-RD-76- 135, Federal Highway Administration, Office of R &D, Washington, D.C. Use the data from Exercise 1 to determine how many intersections the traffic engineer would need for each type of traffic signal to reject the null hypothesis at the .01 level of significance witha power of .90 if mean delays at the three traffic signal types were 20, 18, and 16 seconds, respectively.
Answers
The average number of intersections the traffic engineer would need for each type of traffic signal to reject the null hypothesis at the 0.01 level of significance with a power of 0.90 is six
To test the effectiveness of these signals, the engineer must reject the null hypothesis, which states that there is no significant difference in the mean delays between the three types of signals. The engineer wants to reject the null hypothesis at the 0.01 level of significance with a power of 0.9. In other words, they want to be 90% sure that they can detect a significant difference if it exists.
Using the data provided in the study, the engineer can calculate the sample size needed for each type of signal. They need at least five intersections for pretimed signals, six intersections for semi-actuated signals, and four intersections for fully actuated signals to reject the null hypothesis at the desired level of significance with a power of 0.9.
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What would x and Y be?
Answers
Answer:
6 to the square root of 2
Step-by-step explanation:
square root congruency theorem
Marco states that both expressions are equal to x. Do you agree or disagree with Marco? Explain your thinking. 8x-7x -5x+5x
Answers
We diagree with Marco because
\(8x-7x=x\)and
\(-5x+5x=0\)where, in the first expression, we factorized x and got
\(8x-7x=(8-7)x=1x=x\)and in the second one, we got
\((-5+5)x=0\cdot x=0\)In summary, the first expression is equal to x and the second one is equal to zero, so they are different expressions.
help me i need to finish this
Answers
Answer:
its both C and D
Step-by-step explanation:
Answer:
Please help me with my question no one has answered, and I have a whole module due by 3:45 that I haven't even started on.
Find all horizontal asymptotes of the following function.
f(x) =3x² - 48/2x+8
Answers
The given function f(x) =3x² - 48/2x+8 has no Horizontal asymptote.
A horizontal asymptote may be defined as a horizontal line at which the graph of the function will appear to meet but will not actually meet. It is a tool to determine the end behavior of the function. We are given the function f(x) = 3x² - 48/2x+8. Now to find horizontal asymptote of this function we first find lim ₓ→∞ f(x) that is
lim ₓ→∞ (3x² - 48)/(2x + 8)
lim ₓ→∞ 3/2(x - 4) = ∞
Now, we calculate lim ₓ→-∞ f(x) that is
lim ₓ→-∞ (3x² - 48)/(2x + 8)
lim ₓ→-∞ 3/2(x - 4) = -∞
Since, both the limits are different therefore function does not have any horizontal asymptote.
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Write the equation of a line that is parallel to y = -7 and that passes through the point (7,5)
Answers
Answer:
Y=5
Step-by-step explanation:
stanley has one-half of a cake in the fridge. he divided it equally among his three children miriam, joe, and paul. what part of the entire cake did each child get?
Answers
Each child, Miriam, Joe, and Paul, received one-sixth (1/6) of the entire cake.
To determine what part of the entire cake each child got, we need to divide the one-half of a cake that Stanley has equally among his three children, Miriam, Joe, and Paul.
Step 1: Identify the fraction of the cake that needs to be divided, which is one-half (1/2).Step 2: Divide the fraction by the number of children, which is 3.Step 3: Perform the division by multiplying the fraction by the reciprocal of the divisor: (1/2) * (1/3) = (1*1)/(2*3)The result is (1/6), which means that each child, Miriam, Joe, and Paul, received one-sixth (1/6) of the entire cake.
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Evaluate the expression when a=6 and b=4. b - 3a
Answers
-14 is the value of the expression b - 3a at a =6 and b = 4.
What is expression?Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
Given an expression b - 3a
For this expression given,
a = 6 and b = 4
Thus the value of expression at given values
=> b - 3a
=> 4 - 3 * 6
=>4 - 18
=> -14
Therefore, the value of the expression b - 3a at a =6 and b = 4 is -14.
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In a Stock Dividend Multiple Choice Assets increase, Liabilities decrease. Assets decrease, Liabilities increase. Assets increase, Liabilities increase. Assets decrease, Liabilities decrease. Assets don't change, Liabilities don't change.
Answers
In a Stock Dividend Assets don't change, Liabilities don't change.
In a stock dividend scenario, where a company issues additional shares of its own stock to existing shareholders, the impact on the company's balance sheet is as follows:
Assets don't change, Liabilities don't change.
When a company declares a stock dividend, it is essentially distributing a portion of its retained earnings or accumulated profits to its shareholders in the form of additional shares. This means that the company is not receiving any new assets or incurring any new liabilities in the process.
From an accounting perspective, the value of the stock dividend is reflected in the equity section of the balance sheet. The retained earnings account decreases by the value of the dividend, while the common stock or additional paid-in capital account increases by the same value. This adjustment does not affect the company's assets or liabilities.
Therefore, the correct answer is: Assets don't change, Liabilities don't change.
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what does it mean to say that an event has a timebox? (choose the best answer) a. the event must happen by a given time. b. the event must happen at a set time. c. the event must take at least a minimum amount of time. d. the event can take no more than a maximum amount of time.
Answers
The correct option d. the event can take no more than a maximum amount of time, described the an event has a timebox.
Define the term timebox?A timebox is a set amount of time during which a work must be completed in agile software development.
Timeboxes are frequently employed to control risk in software development. Development teams are frequently given a deadline of a certain number of weeks and requested to produce a releaseable update to software.Giving an activity a set, maximum amount of time is known as timeboxing. A time box is the name of that unit of time. The purpose of timeboxing is to specify and set a time restriction for each task. Timeboxing is a technique used by Scrum to concretely define ambiguous or open-ended tasks as well as for all Scrum events.Thus, when an event has a timebox, it signifies that the event can only last a certain length of time.
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Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. compute the 20th, 25th, 65th, and 75th percentiles. if needed, round your answers to two decimal digits.
Answers
The 20th percentile is 20,
The 25th percentile is 22.50.
The 65th percentile is 28.
The 75th percentile is 29.
Given values:
27, 25, 20, 15, 30, 34, 28, and 25.
n = 8
sorting the data gives:
15, 20, 25, 25, 27, 28, 30, and 34.
How to solve for 20th percentile= 20/100 * 8
= 1.6 ≈ 2
1.6 is rounded to 2, the second value is in the sorted data set is 20 hence the 20th percentile is 20
How to solve for 25th percentile= 25/100 * 8
= 2
Since 2 is an integer, the mean of the 2nd and the 3rd values in the sorted data set gives the 25th percentile.
( 20 + 25 ) / 2 = 22.5
hence the 25th percentile is 22.50
How to solve for 65th percentile
= 65/100 * 8
= 5.2 ≈ 6
5.6 is rounded to 6, the sixth value is in the sorted data set is 28 hence the 65th percentile is 28
How to solve for 75th percentile
= 75/100 * 8
= 6
Since 6 is an integer, the mean of the 6th and the 7th values in the sorted data set gives the 75th percentile.
( 28 + 30 ) / 2 = 29
hence the 75th percentile is 29
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Can y’all help me with this 56 x = 10 please
Answers
company mines 300,000 tons of coal per year in a rural county. The coal is worth $79 per ton. The average price for a 2,000 -square-foot house with three bedrooms more han 20 km away from the mining site in this county is $210,000. The average price for a similar, 2,000 -square-foot house with three bedrooms within 4 km of the mine is 4 ercent lower. Jsing comparative statics, what is the effect of mining on home prices in this county? Mining changes the price of a 2,000-square-foot home (with three bedrooms) by $. (Round your response to two decimal places and use a negative sign if necessary.)
Answers
Mining has a negative effect on home prices in the county, reducing the price of a 2,000-square-foot house with three bedrooms by approximately $8,400.
Comparative statics is a method used to analyze how changes in one variable affect another. In this case, we are examining the effect of mining on home prices in the county. We are given that the company mines 300,000 tons of coal per year, which is worth $79 per ton. Therefore, the annual value of coal production is 300,000 tons * $79 = $23,700,000.
Now, let's consider the effect on home prices. We are given that the average price for a 2,000-square-foot house with three bedrooms located more than 20 km away from the mining site is $210,000. However, for a similar house within 4 km of the mine, the price is 4 percent lower.
To calculate the price reduction, we can multiply $210,000 by 4 percent (0.04). The reduction in price is $210,000 * 0.04 = $8,400. Therefore, the effect of mining on home prices in the county is a decrease of approximately $8,400 for a 2,000-square-foot house with three bedrooms.
It's important to note that this analysis assumes a linear relationship between the proximity to the mine and home prices. Other factors, such as environmental concerns or changes in the local economy, may also influence home prices in the area.
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