find the value of K so that the line passing thru the points (K,-1) and (-2,-8) is parrallel to the equation 3x+y= -7
Answers
Answer:
K=-13/3
Step-by-step explanation:
Related Questions
1
Write the equation of a circle whose center is at (-11,–8) and whose radius is 4.
Answers
Answer:
Step-by-step explanation:
[tex](x_c,y_c)=(-11,-8) \quad r=4\\(x-x_c)^2+(y-y_c)^2=r^2 \quad (x+11)^2+(y+8)^2=4^2[/tex]
2 A line passes through the point (9,-8) and has a slope of 3 ving Write an equation in point-slope form for this line.
Answers
Answer:
y=3x-35
Step-by-step explanation:
y=ax+c
a=slope=3; x and y are given, 9 and -8. put into the formula and solve for c.
-8=9*3+c
-35=c
y=3x-35
solve rational function
Answers
A person invests $4,250 in an account that earns 5.25% interest compounded annually. let f(t) be the value in dollars of the account after t years. give an equation for f f(t)=______. what will be the value of the account after 5 years? round your answer to the nearest cent. $_______. after 10 years? round your answer to the nearest cent $______
Answers
Answer:
see the answers below
Step-by-step explanation:
Given data
P=$4,250
Rate= 5.25%
Time= t years
1. The compound interest expression is
A=4250(1+0.0525)^t
A=4250(1.0525)^t
2. P=$4,250
Rate= 5.25%
Time= 5 years
1. The compound interest expression is
A=4250(1+0.0525)^5
A=4250(1.0525)^5
A=4250*1.2915
A=$5488.875
3. P=$4,250
Rate= 5.25%
Time= 10years
1. The compound interest expression is
A=4250(1+0.0525)^10
A=4250(1.0525)^10
A=4250*1.6680
A=$7089
I git dune wif this in 3 minits
782+821=___
2x2=___
Answers
2x2 = 4
Answer:
♡♡♡♡♡♡♡♡♡♡♡♡
Step-by-step explanation:
782 + 821 = 1,603
2 x 2 = 4
Rewrite the polynomial 2x2 + x + +-7x + 1 in standard form.
Answers
Answer:
x-7x+5
Step-by-step explanation:
4+x-7x+1
x-7x+5
........................
Answers
Answer:
.......................................................................................................................
Step-by-step explanation:
nice enjoy this picture of le doggo
which scatterplot most likely has a line of best fit represented by y=-2x-1?
NO LINKS PLS
Answers
Answer:
The answer to your question is the letter C
Answer:
I think it is c
Step-by-step explanation:
14. Jessica created a model of an ice cream cone by combining the shapes
of a cone and a hemisphere. Based on the dimensions shown in the figure
below, determine the volume of the model.
A.
B. 661 cm
C. 108 cm
D. 126 cm
Answers
Answer:A
Step-by-step explanation:trust me bro
A map's scale is 1 inch : 3.5 miles.
If the distance on the map is
8 inches, then the actual distance
in real life is miles.
Answers
Answer:
28
Step-by-step explanation:
1 in.=3.5
so 8×3.5=28
so it is 28 miles
1/2 as an epuivalent fraction,decimal or percent
Answers
Answer:
50% OR 0.50 OR 5/10 6/12
Step-by-step explanation:
Please help me!! It’s a test!!
A carbon filter is used by a scientist to filter out small particles of soil and rocks from
a water sample taken from a stream. The exponential function F(x) = 500(0.35) can
be used to model the function. Which of the following could be represented by the
value 500 in the function rule?
Answers
Answer:
The number of particles of soil and rock particles found in the water.
Step-by-step explanation:
Since we are filtering out small particles of soil and rocks, then we can assume that they are being reduced greatly with each filter. So we can assume that since the 500 is being reduced by 65%, then the 500 is the only other thig being reduced, which in this case is the particles of soil and rocks.
What is the correct expanded form and value of ( 4/5)³ ?
Answers
Answer:
its the second one
Step-by-step explanation:
see image below
I am doing this test and I need questions questions ASAP I will give brainiest to whoever answers it correctly
Answers
Answer:
The correct answer there is the first option
Determine the length of side QS
Question 14 options:
A)
2.4
B)
5.7
C)
3.4
D)
1.9
Answers
Answer:
Use the Pythagorean therm. the answer is D
Step-by-step explanation:
the square root of 1.2(squared) + 1.4(squared) = 1.84 so if you were to determine the side length it would be D
3 An expression is shown below
3 +8+4x2 - 12
Place the parenthesis in the expression
so that it has a value of 18.
Answers
3+8+4 = 15
15 x 2 = 30
30-12= 18
George was collecting brown beetles for his entomology class. The table below shows the number of brown beetles he collected per location. What is the mean of the total number of beetles collected? *
Answers
Answer:
12.4
Step-by-step explanation:
i did this
Find the average of e^-x over [0,3]
Answers
The average value of a continuous function f(x) over an interval [a, b] is given by the integral,
[tex]\displaystyle \frac1{b-a}\int_a^b f(x)\,\mathrm dx[/tex]
Compute the integral for f(x) = e ⁻ˣ over [0, 3] :
[tex]\displaystyle \frac1{3-0}\int_0^3e^{-x}\,\mathrm dx=\frac13(-e^{-x})\bigg|_0^3=\frac13(-e^{-3}-(-e^{-0})) = \frac13 \left(1-\frac1{e^3}\right) = \boxed{\frac{e^3-1}{3e^3}}[/tex]
Pleaseeeeeeeeeeeeeeeeeeeeeeeee
Answers
Answer:
2 terms
Step-by-step explanation:
I hope it will help you
I need help please don’t scam or no brainlist
Answers
The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 4.50 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 53 randomly selected calls. The mean wait time was calculated to be 4.94 minutes. Assuming the population standard deviation is 2.10 minutes, is there sufficient evidence to say that the mean wait time for customers is longer than 4.50 minutes with a 98% level of confidence?
1. State the null and alternative hypotheses for the test.
2. Compute the value of the test statistic.
3. Draw a conclusion and interpret the decision.
Answers
Answer:
H0 : μ = 4.50
H1 : μ > 4.50
Test statistic = 1.525
we conclude that there is no sufficient evidence to conclude that the mean wait time for customers is longer than 4.50.
Step-by-step explanation:
H0 : μ = 4.50
H1 : μ > 4.50
Test statistic :
(xbar - μ) ÷ s/sqrt(n)
(4.94 - 4.50) ÷ 2.10/ sqrt(53)
0.44 / 2.10/ sqrt(53)
= 1.525
α = 1 - 98% = 0.02
Decision region :
Reject H0 ; if Pvalue < α
Pvalue = p(Z < 1.525) = 0.936
Pvalue = 0.936
Since Pvalue > α ; We fail to reject H0
Hence, we conclude that there is no sufficient evidence to conclude that the mean wait time for customers is longer than 4.50.
Please help me and no linkd
Answers
Answer:
Um what’s the question?
Step-by-step explanation:
Answer:
*links* hope this helped!
Step-by-step explanation:
LN = x and MP = 3x-8
Answers
Answer:
The result can be shown in multiple forms.
Exact Form:
x
=
e
4
3
x
=
e
4
3
Decimal Form:
x
=
18.19938334
…
Step-by-step explanation:
Peele is interested in the average price of an entree at a French restaurant, but only has a random sample of 9 prices (prices are not listed on the menu). Using this random sample, Key calculates that a 90% confidence interval for the true mean is given by (65, 88). (You can assume the prices follow a normal distribution). Use this information to do the following:
a) Calculate 7. (Hint, what does a confidence interval look like?)
b) Calculate s.
c) Construct a 95% confidence interval for the true mean price of all the entrees, f.
Answers
Answer:
Xbar = 76.5
s = 24.70
(61.19 ; 91.81)
Step-by-step explanation:
Given that :
Confidence interval = (65, 88)
Recall:
Confidence interval = xbar ± margin of error
Margin of Error = (upper boundary - lower boundary) / 2
Margin of Error = (88 - 65) /2 = 11.5
Taking the lower boundary :
Lower boundary = xbar - margin of error
xbar = lower boundary + margin of error
Xbar = 65 + 11.5
Xbar = 76.5
Margin of Error = Tcritical * s/sqrt(n)
s = sample standard deviation
Tcritical at 90% confidence, df = 9-1= 8 = 1.397
11.5 = 1.397 * s/sqrt(9)
11.5 = 1.397 * s/3
34.5 = 1.397s
s = 34.5 / 1.397
s = 24.695
s = 24.70
C.) 95% confidence interval :
Tcritical at 95%, df = 8 = 1.860
Margin of Error = 1.860 * 24.70/sqrt(9) = 15.311
Confidence interval :
Lower boundary = 76.5 - 15.311
Upper boundary = 76.5 + 15.311
(61.19 ; 91.81)
Oriole Rental Company provided the following information to its auditors. For the year ended March 31, 2017, the company had revenues of $876,223, general and administrative expenses of $352,479, depreciation expenses of $131,455, leasing expenses of $108,195, and interest expenses equal to $78,122. If the company's average tax rate is 34 percent, what is the cash flow from operating activity for Oriole Rental? (Round intermediate calculations and final answer to the nearest whole dollar, e.g. 5,275.) Cash flow from operation
Answers
Answer:
the cash flow from operation is $267,397
Step-by-step explanation:
Given that
Revenues be $876,223
General and admin expense $352,479
Depreciation expense $131,455
Leasing expense $108,195
Interest expense $78,122
Tax rate is 34%
We need to find out the cash flow from operation
As we know that
Cash flow from operation = (Revenue - general & admin expense - depreciation - leasing - interest) × (1 - tax rate) + depreciation
= ($876,223 - $352,479 - $131,455 - $108,195 - $78,122) × (1 - 0.34) + $131,455
= $205,972 × (1 - 0.34) + $131,455
= $267,397
Hence, the cash flow from operation is $267,397
Do the first step of solving this equation by substitution, by creating a single equation (do not use spaces)
Answers
Answer:
x=1 y=3
Step-by-step explanation:
Answer:
x= 1 y= 3
Step-by-step explanation:
y= 2x+1
y= 4x-1
4x-1=2x +1
4x-2x= 1+1
2x=2
x=2/2
x=1. replace x=1 in any of the equation to find y
y= 2(1)+1
y= 2+1
y=3
x = 8 – 2y
x + 3y = 12
Answers
9514 1404 393
Answer:
(x, y) = (0, 4)
Step-by-step explanation:
Since we have an expression for x, substitution works nicely.
(8 -2y) +3y = 12 . . . . . . use the first equation to substitute for x in the 2nd
y = 4 . . . . . . . . . . . . subtract 8, collect terms
x = 8 -2(4) = 0 . . . . substitute for y in the first equation
The solution is (x, y) = (0, 4).
The equation x^3-6x=72 has a solution between 4 and 5. Use a trial and improvement method to find this solution. Give your answer correct to 1 decimal place. You must show all your working. On the same line as your final answer you must write ‘to 1 decimal place’
Answers
Answer:
4.6
Step-by-step explanation:
x³-6x=72
x³-6x-72=0 .... a solution between 4 and 5
x=4 x³-6x-72= 64-24-72 = -32
x=5 x³-6x-72= 125-30-72 = 23
we have to find an x value that makes x³-6x-72 --> 0
see the attachment, we can find the 0 value of x is between 4.63 and 4.64
‘to 1 decimal place’ of the solution is: 4.6 (4.63 is too small and 4.64 is too big)
Without using your calculator work out 1 7/12 + 13/20. Give answer in its simplest from
Answers
Answer:
31/15
Step-by-step explanation:
First, find the common multiplier of 20 and 12 (the lowest number that both fractions can be increased to). This is 60 (12 x 5 = 60, 20 x 3 = 60) and adjust the numerators accordingly: multiply 17 by five to get 85, and multiply 13 by three to get 39. Add them up to get 124/60, and then simplify - the answer will be 31/15! Hope this helps! Sorry if this was tough to understand, typing off my phone, so feel free to ask any questions :)
Answer:
0.720833
Step-by-step explanation:
First find the LCM of the two fractions
Then add the numerators together
form a single fraction
Lastly cancel the numerator and denominator if possible
Find the surface area of the Cube. (Please explain how you do it)
Answers
Answer:
143 in^2
Step-by-step explanation:
This is a rectangular prism, not a cube. One way in which to find the total surface area is as follows: find the area of the top, the front and the side, add these together and multiply by 2 (since there are 2 tops, 2 sides, 2 fronts):
Surface area = 2(5*7 + 5*9 + 9*7) in^2 = 2(35 + 45 + 63) in^2 = 143 in^2