The bottom of a lake is 213 feet above sea level.
Short answer that best completes each statement
Answer:how will we know what your talking about if you only gave us a number
Step-by-step explanation:
Sara has $175 and wants to start saving more money so she opens a savings account and deposits the $175 in it to start. The function that represents Sara's account is f(x)=175 + x, where x is that amount of money in dollars that Sara deposits after her initial $175. What is a reasonable range for the function?
Group of answer choices
All real numbers greater than or equal to 175
All real numbers
All real numbers greater than or equal to 0 and less than or equal to 175
All real numbers greater than or equal to 0
Answer:
all real numbers greater than or equal to 175
Step-by-step explanation:
Evaluate −3x+5y when x=16 and y=14. Write your answer as a fraction in simplest form.
Answer:
22??
Step-by-step explanation:
-3x + 5y
-3(16) + 5(14)
-48 + 70
22
Step-by-step explanation:
We need to place the value of x and y in the equation.
Let's Do!
[tex]\sf{ - 3x + 5y}[/tex]
[tex]\rm{ - 3(16) + 5(14)}[/tex]
[tex] \sf{- 48 + 70}[/tex]
[tex] \rm{= 22}[/tex]
As a fraction,
[tex]\bf{ = \dfrac{22}{1}}[/tex]
is the required answer.
Hope it helps :)
multiply (x-2)(3x+4) using the distributive property select the anwser choice showing the correct anwser
A (x-2)(3x)+(3x)(4)
B (x-2)(3x)+(x-2)(4)
C (x)(3x)+4(x)+3x+4
D (x)(3x+4)+(x-2)
Answer:
Tbh this question has me confused, but I would go with C? If the question is looking for the distributive property, then C may be the way to go.
One kilometer is 1000 meters complete the table 250 meters equals how many kilometer
0.25 km is the answer.
1km = 1000m
x = 250
x = 250/1000
x = 0.25
Two new wind-farm tower projects are proposed for a small company that installs them in south western Pennsylvania. Project A will cost $250,000 to complete and is expected to have an annual net cash flow of $75,000. Project B will cost $150,000 to complete and should generate annual net cash flows of $52,000. As a small company, the owner and senior management team are very concerned about their cash flow. Use the payback period method and determine which project is better from a cash flow standpoint. Show your work and include any formulas used to calculate PP.
Answer:
Step-by-step explanation:
The payback period is the time to regain the cost of the investment or DRCI. It is a risk criterion that measures the time needed for the discounted sum of the forecast cash flows to allow the recovery of the cost incurred by the investment. However, the shorter the payback period, the lower the risks associated.
Mathematically;
Payback period = Cost of the investment / Annual Net Cash Flow
From the given question:
For project A;
Cost of investment = $250,000
Annual net Cash Flow = $75000
The payback period for Project A = $250,000 / $75,000
The payback period for Project A = 3.33
For project B;
Cost of investment = $150,000
Annual net Cash Flow = $52000
The payback period for Project A = $150,000 / $52,000
The payback period for Project A = 2.88
Thus, from the calculation, we can deduce that project B is better than project A because there fewer risks associated with it because it has a shorter payback period compared to project A.
Pat has 9cards. Frank has 2more cards than Steve. Steve has 3cards. How many more cards does pat have than frank ?
Find the slope of the line passing through the pair of points.
(9, 4) and (5, –3)
Answer:
-7/4
Step-by-step explanation:
slope= y2-y1 / x2- x1
= -3-4 / 5-9
= -7 /4
cosA + cosB - cosC = -1 + 4cosA/2 cosB/2 sinC/2
Answer:
Step-by-step explanation:
(cos A+ cos B)-cos C
[tex]=2cos \frac{A+B}{2}cos \frac{A-B}{2}-cos C~~~...(1)\\A+B+C=180\\A+B=180-C\\\frac{A+B}{2}=90-\frac{C}{2}\\cos \frac{A+B}{2}=cos(90-\frac{C}{2})=sin \frac{C}{2}\\cos C=1-2sin^2\frac{C}{2}\\(1)=2 sin \frac{C}{2} cos \frac{A-B}{2}-1+2sin^2\frac{C}2}\\=2sin\frac{C}{2}[cos \frac{A-B}{2}+sin \frac{C}{2}]-1~~~...(2)\\\\now~again~A+B+C=180\\C=180-(A+B)\\sin\frac{C}{2}=sin(90-\frac{A+B}{2})=cos \frac{A+B}{2}\\(2)=2sin\frac {C}{2}[cos \frac{A-B}{2}+cos \frac{A+B}{2}]-1\\[/tex]
[tex]=-1+2sin\frac{C}{2}*2cos \frac{\frac{A-B}{2} +\frac{A+B}{2} }{2} cos \frac{\frac{A-B}{2} -\frac{A+B}{2} }{2} \\=-1+4sin\frac{C}{2} cos \frac{A}{2} cos\frac{-B}{2} \\=-1+4 cos \frac{A}{2} cos \frac{B}{2} sin \frac{C}{2}\\(cos(-B)=cos B)[/tex]
Which image shows 1 7/8 on a number line?
Answer:
A
Step-by-step explanation:
brainlest plz
he length of a rectangle is 3.7 inches when rounded to the nearest tenth of an inch. Select all of the following that could be the actual length of the rectangle.
Answer:
[tex]3.65 \geq\ Length \leq 3.74[/tex]
Step-by-step explanation:
The options are not given.
However, the question is still solvable.
Given
[tex]Length = 3.7\ inches[/tex] --- Approximated
Required
What could be the actual length
The given length is approximated to nearest tenth.
So, the actual length could be any of the following range
[tex]3.65 \geq\ Length \leq 3.74[/tex]
This is so because, numbers within this range approximates to 3.7
Study the figure.
Find the area of the shaded region. Use 3.14 for it and round your answer to the nearest hundreth.
Answer:
So we know the formula to calculate the area of the circular sector:
S=(r^2*π*a)/306°=
(5^2*3.14*40°)/360°= (1000*3.14) /360=8.72cm^2 so the right alternative should be the first one ,A.
Step-by-step explanation:
r - radius of the circle
a - corner of the circular sector
S - surface
Find an equation in slope-intercept form of the line that has slope 8 and passes through point A(1,5).
a. y = 13x + 8
b. y = 8x + 13
C. y = -8x + 13
d. y = -8x - 13
Please select the best answer from the choices provided
B
Ο Ο Ο Ο
0 0
Answer:
The answer is C
Step-by-step explanation:
Complete the table. *
O. a = 3.50, b = 4.00
O. a = 4.00, b = 5.00
O. a = 4.50, b = 6.00
O. a = 6.00, b = 8.00
Consider this equation. (4x)1/3 - x = 0 The first step in solving this equation is to ___The second step is to ____ Solving this equation for x initially yields _____ Checking the solutions shows that _____
The first step in solving this equation is to _taking lcm__The second step is to _trsanpose the denominator to rhs___ Solving this equation for x initially yields__0___.
Given equation is [tex]\frac{4x}{3} -x=0[/tex]
On solving, [tex]4x-3x=0[/tex]
[tex]x=0[/tex]
Here the solution of the equation is 0.
The first step in solving this equation is to _taking lcm__The second step is to _trsanpose the denominator to rhs___ Solving this equation for x initially yields__0___.
For more details on solving equations follow the link :
https://brainly.com/question/11897796
Solve the equation.
∣x−2∣=∣4+x∣
the cost of 24 roses at Farley's flowers including the $1.74 sales tax is $34.54. Based on this information wich statement is true
letter a................
Answer:
y - (18x - 6y)/3
Step-by-step explanation:
y - (2/3)(9x - 3y)
y - [(2)(9x - 3y)]3
y - (18x - 6y)/3
y + (-18x + 6y)/3
y - 6x + 2y
-6 + 3y
pls help!!!! I will make you brainiest!!!
What is the rate of change?
Answer:
7.25
Step-by-step explanation:
21/3=7.25
29/4=7.25
and so on
A baseball diamond is a square with sides 90 ft long. A batter is at bat, with runners
at first and second base. At the moment the ball is hit, the runner at first base runs to
second base at 25 ft/s. Simultaneously, the runner on second base runs to third base
at 15 ft/s. How fast is the distance between these two runners changing 2 s after the
ball is hit?
The runner on first has distance from second of 90 -25t, where t is the time in seconds since he left 1st base.
The runner on second has a distance from second of 15t, where t is the time in seconds since he left 2nd base
Then the Pythagorean theorem tells us the distance between the runners is :
d = √((90 -25t)² +(15t)²)
The rate of change of distance between the runners is the derivative of this with respect to time.
dd/dt = 2(90-25t)(-25)+2(15t)(15) / (2sqrt(90-25t)^2 + 15t^2)
Replace t with 2 and solve to get: -31
The distance between runners is decreasing at 31 ft/s two second after they leave the bases.
__________ refers to the degree of correlation among independent variables in a regression model. a. Multicollinearity b. Tolerance c. Rank d. Confidence level
Answer:
Option A: Multicollinearity
Step-by-step explanation:
Multicollinearity is said to be present when there are high correlations between two or more independent variables called predictor variables. In simple terms, Multicollinearity refers to when the independent variables present in a regression model are correlated.
Tolerance is simply used to detect Multicollinearity.
Rank is basically the model in which the ranks of the dependent variable are said to have regressed on a set of characteristics in the experiment known as covariates.
Confidence level is the percentage of all possible samples that we can expect to be included within the true population parameter.
Looking at all the definitions, the one that fits with the statement in the question is Multicollinearity.
A statistics instructor wants to see if allowing students to use a notecard on exams will affect their overall exam scores. The instructor thinks that the results could be affected by the type of class: traditional, Web-enhanced, or online. He randomly selects half of his students from each type of class to use notecards. At the end of the semester, the average exam grades for those using notecards is compared to the average for those without notecards.
Required:
a. What type of experimental design is this?
b. What is the response variable in this experiment?
c. What is the factor that is set to predetermined levels? What are the treatments?
d. Identify the experimental units.
Answer:
Throughout the clarification section elsewhere here, the definition of the concern is discussed.
Step-by-step explanation:
This seems to be an experimental analysis where the students were purposely administered an assessment and treatment of someone using notecards towards examine a potential improvement in the answer or calculated indicator that is average scores. Overall test scores are the answer component. Through the use of notecards seems to be the explanatory component. The vector degree is 'Used' either 'Not Used.' The participants offering the test seem to be the experimental groups.A manufacturing company produces electric insulators. You define the variable of interest as the strength of the insulators. If the insulators break when in use, a short circuit is likely. To test the strength of the insulators, you carry out destructive testing to determine how much force is required to break the insulators. You measure force by observing how many pounds are applied to the insulator before it breaks. You collect the force data for 30 insulators selected for the experiment and find out that the mean force is 1670. The population mean force that you try to estimate is_______.
a. a confidence interval.
b. a statistic.
c. a point estimate.
d. a parameter.
e. an interval estimate.
Answer:
b. a statistic.
Step-by-step explanation:
the value 1670 is regarded as a statistic. this is because it is a representation of the value of a sample. from the question we get that destructive testing is being done this shows is that what we have here is a sample.
the mean force 1670 is not a parameter, a point estimate, a confidence interval or interval estimate. therefore option b is the answer.
15. A student graphed f(x) = x and g(x) = f(x) + 3 on the same coordinate grid. Which
statement describes how the graphs of fand g are related?
A. The graph of f is shifted 3 units up to create the graph of g.
B. The graph of f is steeper than the graph of g.
C. The graph of f is shifted 3 units down to create the graph of g.
D. The graph of f is less steep than the graph of g.
Answer:
The graph of f is shifted 3 units up to create the graph of g.
Here we have a problem with translations, where we define a translation as an operation that moves the graph of a function in a given direction.
We will see that the correct option is A.
"The graph of f is shifted 3 units up to create the graph of g."
To get this, we first need to describe vertical translations.
For a function f(x) we define a vertical translation (or vertical shift) of N units as:
g(x) = f(x) + N
If N is positive, the translation is upwards
if N is negative, the translation is downwards.
So here we have:
g(x) = f(x) + 3
So we can see that this is a translation of 3 units upwards, then the correct option is A, the graph of f(x) is shifted (or translated) 3 units up to greater the graph of g(x).
And the graphs of g(x) = x + 3 and f(x) = x can be seen below, where you can see this, where the grey line is g(x).
If you want to learn more, you can read:
https://brainly.com/question/24401156
1) [tex] \sqrt{4} [/tex]
A. real numbers.
B. not real number
2) 1/2
A. real number
B. not real number
I'm 99 percent sure both are real numbers
An electronics company has a contract to deliver 21,475 radios within the next four weeks. The clientis willing to pay $20 for each radio delivered by the end of the first week, $18 for those delivered by theend of the second week, $16 by the end of the third week, and $14 by the end of the fourth week. Sinceeach worker can assemble only 50 radios per week, the company cannot meet the order with its presentlabor force of 40; hence it must hire and train temporary help. Any of the experienced workers can betaken off the assembly line to instruct a class of three trainees; after one week of instruction, each of the trainees can either proceed to the assembly line or instruct additional new classes.
At present, the company has no other contracts; hence some workers may become idle once the delivery is completed. All of them, whether permanent or temporary, must be kept on the payroll 'til the end of the fourth week. The weekly wages of a worker, whether assembling, instructing, or being idle, are $200; the weekly wages of a trainee are $100. The production costs, excluding the worker's wages, are $5 per radio. The company's aim is to maximize the total net profit.
Required:
Formulate this as an LP problem (not necessarily in the standard form).
Step-by-step explanation:
See attached a detailed annotation of the LP formulation
let is describe the problem bellow.
An electronics company has a contract to deliver 21,475 radios within
the next four weeks. The client is willing to pay
$20 for each radio delivered by the end of week 1
$18 for each radio delivered by the end of week 2
$16 for each radio delivered by the end of week 3
$14 for each radio delivered by the end of week 4
Each worker can assemble 50 radios/wk.
Size of present workforce = 40.
Any experienced worker can be taken off the assembly line to instruct a class
of three trainees; after one week of instruction, each of the trainees can
either proceed to the assembly line or instruct additional new classes.
Weekly wages for experienced workers: $200
Weekly wages for trainees: $100
Production costs, excluding wages: $5/radio.
Whats the answer to the picture?
Answer:
I believe C is the answer (I have not done this in a while)
Step-by-step explanation:
-3(4) = -12 < 0
4 = 0
4^2 = 16 > 0
f(4) = 0
AAAAAAAAAAAAAAAA HELP PLEASE HELP
Answer:
x=-5
Step-by-step explanation:
Answer:
x = -5
4x + 12 = -8
4x = -20
x = -5
Hope this helps
She paid with a $100 bill and received $32.16 in change. If sales tax is charged at a rate of 6%, what was the price for one candle holder before taxes?
Answer:
$63.77
Step-by-step explanation:
100-32.16=67.84
67.84*0.94=63.77
Hope this helps!
Answer:
$63.76
Step-by-step explanation:
Total solar eclipses occur on a regular and predictable basis. One that could be viewed in parts of the United States occurred on March 7, 1970. The saros cycle is a period of 18 years, 11 1 3 days, and solar eclipses occur according to this cycle. For the purposes of this exercise, we ignore leap years and assume that a year is exactly 365 days. Because the saros cycle is not a whole number of days, but instead is one-third of a day longer than a day, at the end of the saros cycle, Earth will have rotated one-third revolution beyond its location at the beginning of the cycle. Thus, if a solar eclipse is viewable at a certain location, the next solar eclipse will not be. How long after March 7, 1970, will a solar eclipse again be viewable from the United States?
Answer:
Step-by-step explanation:
The previous solar eclipse occured on March 7 , 1970 .
saros cycle has duration of 18 years , 11 + 1/3 days
So the earth goes 1 / 3 of its daily rotation beyond its previous location in the next solar eclipse on the earth . In order that we get solar eclipse on the same point on the earth , we shall have to wait for third solar eclipse
So total period of wait = 18 x 3 years + 11 x 3 + 1 = 54 years and 34 days
Date of next solar eclipse on the same spot = 1970 + 54 = 2024
7 th March + 34 days = April 10
likely date = April 10 , 2024 .