Answer:
x<2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x < 2 x < 2
Interval Notation:
( − ∞, 2)
A vehicle was purchased for $64,000 when exponential depreciation is appeals at the rate of 18% per year, how much will the vehicle be worth 54 month after the purchased date?
fill the gap if x×y
x - 15 120 a a 12 c 33
y - 5 40 3 6 b a d
Answer:
x - 15 120 9 18 12 33
y - 5 40 3 6 4 11
Step-by-step explanation:
x - 15 120 a a 12 33
y - 5 40 3 6 b d
x = 3y
When y = 5
x = 3y
x = 3 * 5
x = 15
When y = 40
x = 3y
x = 3 * 40
x = 120
When y = 3
x = 3y
x = 3 * 3
x = 9
When y = 6
x = 3y
x = 3 * 6
x = 18
When x = 12
x = 3y
12 = 3y
y = 12/3
y = 4
When x = 33
x = 3y
33 = 3y
y = 33/3
y = 11
Can someone please help explain the steps? I'm having a hard time understanding the other answers to this question.
y = −2x + 8
y = x − 1
Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.
Answer:
(3,2)
Step-by-step explanation:
Y=-2x+8 equation 1
y=x-1 equation 2
x-1=-2x+8 substi y of second equation into y of first equation.
3x=9
x=3
solve for y by putting the x value into either equation
y=x-1
y=3-1
y=2
Can someone pls explain I need help
Answer: 25
Step-by-step explanation: I just entered the equation into my calculator like so.
A negative number times a negative number equals a positive number.
I hope this helps, have a nice day.
I NEED HELP WITH THE TOP ONE ON THE RIGHT!
Answer:
A. y = 2/5x - 2
Step-by-step explanation:
We can use the slope formula to find the slope of the line.
[tex]m=\frac{y_1-y_2}{x_1-x_2} \\m=\frac{-2-0}{0-5} \\m=\frac{-2}{-5}\\m=\frac{2}{5}[/tex]
Now we know that the slope of the line is 2/5. By looking at the graph, the line crosses the y-axis at the point (0, -2). Therefore, the equation of the line is y = 2/5x - 2.
9
Here is a list of numbers.
6 4 8
9 4 3
IN THIS
AREA
(a) Work out the median.
Ray Jay's company ships T-shirts inbox is shaped like Cube And it's net Ray j. Is designing label for all the faces of the box what is the surface area of each box that Ray J needs to cover the labels
Answer:
24 ft²
Step-by-step explanation:
The surface area of each box to be covered ;
Since box is cube shaped, we find the surface area of a cube to get our solution :
Surface area of a cube = 6a²
Where, a = cube edge
a = 2
Hence,
Surface area = 6a² = 6(2)² = 6 * 4 = 24ft²
WILL MARK BRAINLIEST IF RIGHT (NO LINKS)
Dave is making a sandwich. He can choose from white or wheat bread. He can choose from turkey or roast beef. He can also choose American
cheese, provolone cheese, or Swiss cheese. What is the probability he makes a sandwich with wheat bread and turkey?
Answer:1 out of 9
Step-by-step explanation:
There are 2 different types of bread, 2 different types of meat, and 3 different types of cheese. There are several different choices.
Solve for x. Round to the nearest tenth, if necessary.
Answer:
Step-by-step explanation:
take 69 degree as reference angle
using sin rule
sin 69=opposite/hypotenuse
0.93=7.2/x
x=7.2/0.93
x=7.74
x=7.7
Construct the triangle ABC, with AB = 7cm, BC =
8cm, and AC = 6cm.Measure and state the size of angle ACB.
I don't understand.
Answer:
57.91°
Step-by-step explanation:
see pic
Using Law of Cosines
lower case letters are sides. Uppercase letter is angle.
Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours of electricity used and the cost per kilowatt hour. When he uses 1,100 kilowatt hours of electricity, his bill is $113. When he uses 1,500 kilowatt hours of electricity, his bill is $153. What is the monthly administration fee?
We will form the equations for this problem:
(1) 1100*y + z = 113
(2) 1500*y + z = 153
z = ? Monthly administration fee is notated with z, and that is the this problem's question.
Number of kilowatt hours of electricity used are numbers 1100 and 1500 respectively.
Cost per kilowatt hour is notated with y, but its value is not asked in this math problem, but we can calculate it anyway.
The problem becomes two equations with two unknowns, it is a system, and can be solved with method of replacement:
(1) 1100*y + z = 113
(2) 1500*y + z = 153
----------------------------
(1) z = 113 - 1100*y [insert value of z (right side) into (2) equation instead of z]:
(2) 1500*y + (113 - 1100*y) = 153
-------------------------------------------------
(1) z = 113 - 1100*y
(2) 1500*y + 113 - 1100*y = 153
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y + 113 = 153
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y = 153 - 113
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y = 40
------------------------------------------------
(1) z = 113 - 1100*y
(2) y = 40/400
------------------------------------------------
(1) z = 113 - 1100*y
(2) y = 1/10
------------------------------------------------
if we insert the obtained value of y into (1) equation, we get the value of z:
(1) z = 113 - 1100*(1/10)
(1) z = 113 - 110
(1) z = 3 dollars is the monthly fee.
credit: freesparrow
Answer:
3
Step-by-step explanation:
bc it is
once hundred and
eight
ht and two tens as a decimal
Answer:
108.2
Hope this is right!
Asurveyor standing at anoties two objects B and C on the opposite side of canal.The object are 120 m apart.If the angle of sight b/n the object is 37degre how wide is the canale
Answer:
159.25 meters
Step-by-step explanation:
Using the solution diagram attached ;
From Trigonometric relation, the width, w of the canal can be obtained using :
Tanθ = opposite / Adjacent
Tan 37 = 120 / w
w * tan 37 = 120
w = 120 / tan 37
w = 159.24537 meters
Hence, width of canal is 159.25 meters
What is the 7th term in the sequence below?
6, 36, 216, 1296, . . .
A. 7,776
B. 46,656
C. 279,936
D. 1,679,616
Answer:
C
my answer is the image above
Answer:
I'm very late, but I still like to add these to help other people the answer will be 279,936
Step-by-step explanation:
Example: 6 x 6 = 36 x 6 = 216 x 6 = 1,296 x 6 = 7,776 x 6 = 46,656 x 6 = 279,936
Which three statements are true about the correlation shown by this scatter plot?
Select all the correct answers.
The correlation coefficient is approximately 0.96.
The correlation coefficient is approximately 0.33.
The correlation coefficient indicates a strong positive correlation.
The correlation coefficient indicates a weak positive correlation.
The line of best fit can be used to make accurate predictions from the data.
The line of best fit cannot be used to make accurate predictions from the data.
use graph to answer questions
Answer:
[tex] \sin( \alpha ) = \frac{4}{5} [/tex]
Step-by-step explanation:
as if we form an imaginary triangle with this line as hypotenuse
we get
base = 3 units perpendicular = 4 unitsusing Pythagoras theorem:-
hyponteuse ² = perpendicular ² + base²
hyp² = 4² + 3²
hyp² = 16 + 9
[tex]hyp = \sqrt{25} [/tex]
hyp = 5 units
[tex] \sin( \theta ) = \frac{perpendicular}{hypotenuse} \\ \sin( \theta) = \frac{4}{5} [/tex]
Suppose a toothpaste company wants to calculate how many times teens brush their teeth each week.
They decide to conduct a survey of a random sample of 1000 teens aged 13–18 from across the U.S.
What is the population?
Answer:
1000 I think I Amy be wrong
Express sin Q as a fraction in simplest terms.
Answer:
Solution given
Sin Q=opposite/hypotenuse=28/29
28/29 is. a required answer.
HELP ME AGAIN [GIVING BRAINLIEST TO BEST ANSWER]
Answer:
160 yards
Step-by-step explanation:
Can someone please help me with this, it’s urgent!!
Answer:
[tex] \sqrt{ {a}^{2} + {b}^{2} } \: \: units[/tex]
Step-by-step explanation:
Using distance formula
[tex] \sqrt{ {(0 - b}^{2} + {(b - 0)}^{2} } \\ = \sqrt{ {a}^{2} + {b}^{2} } [/tex]
Can someone help me with this. Will Mark brainliest.
Which exponential function is represented by the graph
Answer:
the answer is "B" the second one...
(1/2)(2)^x
at
0 = (1/2)(1) = 1/2
2= (1/2)(4) = 2
Step-by-step explanation:
evaluate 9^-1/2
help
Answer:
1 /3
Step-by-step explanation:
We know that a^-b = 1/a^b
9^-1/2 = 1/9^1/2
The sqrt (9) =3
1 /3
12c + 12 (3/4c) + 12 (1/2c) shows the total cost for buying 3 phones that each cost c dollars per month for 12 months.
Answer:
c(12 + 9 + 6)
12(2.25c)
Step-by-step explanation:
12c + 12 (3/4c) + 12 (1/2c)
12(1c) + 12(3/4c) + 12 (1/2c)
12(c + 3/4c + 1/2c)
12(2 1/4c)
12(2.25c)
Or
12c + 12 (3/4c) + 12 (1/2c)
12c + 9c + 6c
c(12 + 9 + 6)
which situation could be modeled by the expression 3/4 ÷ 2 1/4?
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
A bag contains five blue marbles, five red marbles, five white marbles, and five black marbles. You draw a marble from the bag, and then draw another marble from the bag.
Do you have a greater probability of drawing two blue marbles if you replace the first marble after you draw it or if you don't replace the marble?
Your answer should include both the mathematical proof and a written statement.
Answer:
If you replace the first marble, you have a higher chance of picking two blue marbles. Mathematical proof and written statement is shown below.
Step-by-step explanation:
Mathematical Proof :
For proof, we should test it out.
To find the total amount of marbles, we add up all the different colors in the bag.
5 + 5 + 5 + 5 = 20
Drawing 2 blue marbles while replacing the first probability :
The probability of drawing a blue marble at first is 5/20. If you then replace this marble, the probability doesn't change, it's still 5/20. To get the probability of getting two blue marbles and not replacing we multiply :
5/20 * 5/20 = 25/400 = 1/16
Drawing 2 blue marbles while NOT replacing the first probability :
The probability of first choosing a blue marble is 5/20, but you don't replace it, so now the probability of choosing a blue marble is 4/19, since one blue marble was taken. To find the probability of drawing two blue marbles but not replacing the first one we are going to have to multiply 5/20 * 4/19. That's 1/19.
So the probability of getting two blue marbles and replacing the first is 1/16, and the probability of getting two blue marbles and not replacing the first is 1/19. Well, which is greater? 1/16 is greater. If you replace the first marble, you have a higher chance of picking two blue marbles.
Written Statement :
If you replace the first marble you have a higher chance of getting two blue because you are increasing the number of blue marbles in the 20 total marbles. Now there is a greater number of blue marbles there is a greater chance you will pick blue.
what is the answer to this?
Step-by-step explanation:
hope this will help you alot
if this really help you please votee or mark me as brinalist.
Thankyou
Please help and show work
Answer:
Step-by-step explanation:
This is a right triangle trig problem. The base of the right triangle is the distance that Donna if from the flagpole; the flagpole is the side opposite the reference angle which was given as 26, and we are looking for the height of the flagpole, h. The trig ratio that uses the side opposite over the side adjacent is the tangent ratio, specifically:
[tex]tan26=\frac{h}{123}[/tex] and
123tan(26) = h so
h = 60.0 rounded to the nearest tenth. But that is only the height from her line of vision and up, not the whole height. In order to find the whole height, we have to add in her height up to her line of vision which is 5.3 feet. Therefore, the height of the flagpole is
60.0 + 5.3 = 65.3 feet.
Can someone please help me!!
Answer:
Shaquille Rashaun O'Neal is an American former professional basketball player who is a sports analyst on the television program Inside the NBA. O'Neal is regarded as one of the greatest basketball players and centers of all time.
Step-by-step explanation:
have a nice summer!
A survey conducted by the American Automobile Association (AAA) showed that a family of four spends an average of per day while on vacation. Suppose a sample of families of four vacationing at Niagara Falls resulted in a sample mean of per day and a sample standard deviation of . a. Develop a confidence interval estimate of the mean amount spent per day by a family of four visiting Niagara Falls (to decimals). $ to $ b. Based on the confidence interval from part (a), does it appear that the population mean amount spent per day by families visiting Niagara Falls differs from the mean reported by the American Automobile Association
Answer:
(233.8436 ; 271.0564)
Yes
Step-by-step explanation:
Given :
Sample mean, xbar = 252.45
Sample standard deviation, s = 74.50
Sample size, n = 64
α = 0.05
The confidence interval :
Mean ± margin of error
Margin of Error = tα/2 * s/√n
df = n - 1 = 64 - 1 = 63
t(α/2, df = 63) = 1.998
Margin of Error = 1.998 * 74.50/√64
Margin of Error = 18.6064
The confidence interval :
252.45 ± 18.6064
(233.8436 ; 271.0564)
Comparing the confidence interval value and the mean value reported by the American Automobile Association ;it can be concluded that the mean reported by the American Automobile Association differ from the mean spent at Niagara Fall as 215.60 falls below the confidence interval.
The confidence interval is (233.8436 ; 271.0564).
We have given that the,
Sample mean, x bar = 252.45
Sample standard deviation, s = 74.50
Sample size, n = 64
α = 0.05
What is the confidence interval ?The confidance interval is Mean ± margin of error.
[tex]Margin of Error = t\alpha /2 \times s/\sqrt{n}[/tex]
[tex]df = n - 1 \\df= 64 - 1 \\df= 63[/tex]
[tex]t(\alpha/2, df = 63) = 1.998[/tex]
[tex]Margin of Error = 1.998 \times 74.50/\sqrt64[/tex]
Margin of Error = 18.6064
The confidence interval is given by,
252.45 ± 18.6064
Therefore we get the confidence interval is (233.8436 ; 271.0564)
Comparing the confidence interval value and the mean value reported by the American Automobile Association ;it can be concluded that the mean reported by the American Automobile Association differ from the mean spent at Niagara Fall as 215.60 falls below the confidence interval.
To learn more about the confidence interval visit:
https://brainly.com/question/15712887