Answers
In order for lines to be perpendicular the slope of one line has to be the minus reciprocal (upside down) of the other.
A
3x + y= 6
y = -3x + 6 So the second line has to be 1/3 Notice it is plus.
B
6x - 2y = 4
-2y = -6x + 4
y = (-6/-2)x + (4/-2)
y = 3x - 2
C
y = 3x - 2
D
y = 1/3 x +7
Related Questions
Given f(x)=5x^2−2x and g(x)=3x ^2+x−4 .
Answers
The addition of the two functions f(x) and g(x) is 8x² − x − 4. Then the correct option is C.
What is a function?The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.
The functions are given below.
[tex]\rm f(x)=5x^2-2x \\\\g(x)=3x ^2+x-4[/tex]
The addition of the functions is given as
f(x) + g(x) = 5x² − 2x + 3x² + x − 4
f(x) + g(x) = 8x² − x − 4
More about the function link is given below.
https://brainly.com/question/5245372
Which of the following data sets represents a positive correlation?
A
B
C
Answers
It is B) because the y-value is increasing as the x-value is increasing.
The sum of 4 interior angles of a pentagon is 402. Find the measure of the fifth interior angle.
108
62
138
42
Answers
5th angle = 540 - 402 = 138
While in europe, if you drive 107 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 42.0 mi/gal ? assume that 1euro=1.26dollars?
Answers
Answer:
The money spend on gas in one week = 46.13 Euro
The money spend on gas in one week = $58.12
Step-by-step explanation:
1 week = 7 days
You drive 107 km per day.
Kilometer driven for 7 days = 7 *107 = 749 kilometers.
Now let's convert kilometers to miles.
1 mile = 1.60934 kilometers
We have to divide 749 km by 1.60934.
So, 749 km = 465.41 miles.
Car mileage is 42 miles / gallon.
We need to find the number of gallons of gas needed to travel 465.41 miles.
So, we have to divide 465.41 miles by 42.
The number of gallons of gasoline needed = [tex]\frac{465.41}{42} = 11.08 gallons[/tex]
cost of 1 .10 Euros per liter.
Now we have to convert 11.08 gallons to liters.
1 gallon = 3.78541 liters.
So we have to multiply 11.08 by 3.78541
11.08 gallons = 41.94 liters.
Now to find the cost, we need to multiply 41.94 liters by 1.10 Euro.
The money spend on gas in one week = 46.13 Euro
To convert the cost in dollars.
1 euro = 1.26
We need to multiply 46.13 by 1.26
The money spend on gas in one week = $58.12
Moving a figure around a fixed point in the plane is called making a ___.
Answers
Answer:
Rotation.
Step-by-step explanation:
There are three rigid motions (which do not change the shape and size of the figures): rotation, translation and reflection.
You make a rotation of a figure when you turn it about a fixed point (which can be inside, on an edge or outside the figure) and it is measured in degrees. The rotation can be clockwise or counterclockwise.
Answer:
The answer is Reflection
The home that you are interested in purchasing is listed at $135,000. In order to get financing, you have to place a 15% down payment. From the given information, determine the amount of the down payment. a. $2,025 c. $114,750 b. $135,000 d. $20,250
Answers
Answer:
its D
Step-by-step explanation:
Which best explains whether a triangle with side lengths 5 cm, 13 cm, and 12 cm, is a right triangle?
Answers
Answer:
Let first side= 5 cm
second side= 12 cm
third side = 13 cm
To prove this triangle to be right angle triangle, we need to prove Pythagoras Theorem
[tex]5^{2}[/tex]=25
[tex]12^{2}[/tex]=144
[tex]13^{2}[/tex]=169
169= 25+144
169=169
According to Pythagoras theorem ,
[tex]p^{2}[/tex]+[tex]b^{2}[/tex]=[tex]h^{2}[/tex]
since, it follows Pythagoras theorem,
Hence, it is a Right angle Triangle
(2)
For this problem I did 2.5/8 = 1.5/4.8, then I cross multiplied and got 12=12 so I would assume that the polygons are infact similar? It must be B or C based on this, but I am pretty confused about the whole ratio part.
Answers
Notice how JK and PQ are the first two letters of JKML and PQRS respectively. So they correspond to one another. Furthermore, notice that 8/4.8 = 1.667 approximately. Also, KM/QR = 2.5/1.5 = 1.667 approximately as well. KM and QR are the two middle letters of JKML and PQRS respectively. The fact we get 1.667 approximately both times, and because of the congruent angles, proves the figures to be similar.
In short, the actual answer is choice B
First you should rotate the second polygon 90 degrees clockwise (so angle S is on the left) to make it easier to visualize corresponding sides. Now with the shapes in the same orientation, it seems they could be similar. But we have to verify their angles and lengths.
If the two polygons are similar, then the similarity statement might be JKML~PQRS. Notice the order the angles are listed are the same for both shapes (e.g. top left angle is listed first for both shapes). That being said, you could also have written a similarity statement LMKJ ~ SRQP, or another combination of letters with corresponding angles listed in the same order.
First let's check the corresponding sides.
The ratio between corresponding sides JK and PQ is JK/PQ = 8/4.8 = 1.667
The ratio between corresponding sides JL and PS JL/PS = 2.5/1.5 = 1.667
LM/SR and KM/QR also equal 1.667.
Corresponding sides are proportional. We are halfway there.
Now let's check angles. Angle J equals 115 degrees, and its corresponding angle P also equals 115 degrees, so Angle J = Angle P.
The other angles are also similar. Quick proof here: draw a diagonal from angle L to K and from S to Q to split the shape to two triangles. The left triangles are similar by SAS similarity and the right triangles are congruent by SSS similarity. Similar triangles have the same angles, so the two entire polygons have the same angles.
Since the polygons JKML and PQRS have the proportional lengths and same angles, they are similar polygons.
Now, the second part in the answer choices is the ratio between JKML and PQRS. In our example of JK and PQ we found the ratio to be JK/PQ = 8/4.8 = 1.667, and every corresopnding side to also be 1.667. So the entire polygon ratio of JKML to PQRS has the ratio 8/4.8.
Use the number line to find the ratio BG/AD Simplify the ratio.
Answers
Three couples go to the movies and sit in six consecutive seats. if the couples must sit together, in how many ways can they be seated
Answers
9
Which of the following statements is always true?
A: All rational numbers are whole numbers.
B: All real numbers are rational numbers.
C: All irrational numbers are real numbers.
D: All square roots are irrational numbers.
Answers
The correct answer is B: All real numbers are rational numbers.
Hope this helps!
Answer:
b
Step-by-step explanation:
took the test got it right
If l = 65 cm and j = 33 cm, what is the length of k?
Answers
Answer:
The answer is 56 inches on Study Island.
Step-by-step explanation:
Thomas is saving pennies in a jar. The first day he saves 3 pennies, the second day 12 pennies, the third day 48 pennies, and so on. How many pennies does Thomas have on the eighth day?
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Please Hurry, I really need help! A cylinder has a height of 6" and the circumference of its base is 16π".
Find the volume of the cylinder. (P.S There is no picture of the cylinder)
96π cubic inches
192π cubic inches
384π cubic inches
Answers
Circumference is 2*pi*r
16pi=2pir
r=8
v=pi*8^2*6
v=384pi cubic inches
Height of cylinder = 6 inch
Circumference of base = 16 π inch
Volume of cylinder = πr^2h
Radius =?
Circumference of circle = 2πr
2πr= 16π
2r= 16
r= 16/2
r= 8 inch
Volume= π×8×8×6
Volume= 384π cubic inches
Hope it helps...!!!
What is the greatest common factor of the polynomial's terms? 14a3b4−7ab7+21a2b
Answers
The Answer is 7(ab).
I did the quiz.
Answer: 7ab
Step-by-step explanation:
The given polynomial : [tex]14a^3b^4-7ab^7+21a^2b[/tex]
The terms of the above polynomial can be written as :
[tex]14a^3b^4=(7\times2)a^{2+1}b^{3+1}=(7\times2)a^2(a)b^3b\\\\-7ab^7=-7ab^{6+1}=-7ab^6(b)\\\\21a^2b=(7\times3)a^{1+1}b=(7\times3)a(a)b[/tex]
Now, we can see that the greatest common factor of the polynomial's terms= [tex]7ab[/tex]
A 45° sector in a circle has an area of 13.75π cm².
What is the area of the circle?
Use 3.14 for pi.
Enter your answer as a decimal in the box.
Answers
Number of sectors in a circle = 360°/45° = 8
Now multiply this number to 13.75[tex] \pi [/tex] to get the area of the circle.
[tex] \pi [/tex] = 3.14
Area of the circle = 8 * 13.75 * 3.14 = 345.4 [tex]c m^{3} [/tex]
Ans: 345.4 [tex]c m^{3} [/tex]
-i
Answer:
345.4
Step-by-step explanation:
I took the test
A cruise ship travels 1900 miles per trip. There are a total of 4 stops the ship makes, and the distance to the first stop is 460 miles. If the variable d stands for the distance left to travel after the first stop, which of the following units could apply to this variable?
A. ships
B. days
C. stops
D. miles
Answers
A sample has a mean of m = 90. if each score in the sample is multiplied by 5, then what is the mean for the new distribution?
Answers
Then:
m= 90x5
m=450
Therefore, the answer is: The mean for the new distribution is 450 (m=450).
Final answer:
When each score in a sample is multiplied by a constant, the mean of the new distribution will also be multiplied by that constant, resulting in a new mean value of 450.
Explanation:
The mean of a sample is a measure of the average value of the data points in that sample.
When each score in a sample is multiplied by a constant, like 5 in this case, the resulting mean of the new distribution will also be multiplied by that constant.
In this scenario, since each score is multiplied by 5, the mean of the new distribution will be 5 times the original mean, giving a new mean of 450.
Find the distance between the points given.
(-3, -6) and (3, 2)
4
10
√52
Answers
please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
x + (x+2) + (x + 4) + (x + 6) + (x + 8) = 310
Combine like terms and you'll get this:
5x + 20 = 310
Using subtraction of equality:
5x = 290
Using division of equality:
x = 58
NOW, the question isn't asking for the value of x but the value of the 3rd number in the sequence. Go back to the original equation and plug in x to the 3rd number.
the 3rd number = x + 4 = 58 + 4 = 62
Voila! Hope this helps!
Find the area of the shaded region?
Answers
3 x4 = 12
4x 1 = 4
120 - 12 = 108
108-4 = 104 square feet
What is the question
Answers
2x - 2y - 5y + 5z - 2x - y + 3z; now, we need to list like-terms together and simplify.
2x - 2x; 0
2y - y; -3y
5z + 3z; 8z
Now, let's put this into an expression;
-3y + 8z.
From our answer choices in the image above, the last option "D.) -3y + 8z" is the correct answer.
I hope this helps!
The number of cents per kilometer it costs to drive a car depends on how fast you drive it. At low speeds the cost is high because the engine operates inefficiently. At high speeds the cost is high because the engine must overcome high wind resistance. At moderate speeds the cost reaches a minimum. Assume that the number of cents per kilometer varies quadratically with the number of kilometers per hour.
A) Suppose that it costs 28,21, and 16 cents per kilometer to drive at 10,20,and 30 kph,respectively. Write the particular function to represent this situation.
B)How much would it cost to drive at 150 kph?
C) Between what two speeds must you drive to keep your cost at no more than 13 cents per kilometer?
C)Is it possible to spend only 10 cents per kilometer?
D) What is the optimum speed and how much per kilometer will it cost? What part of the function represents this function?
Answers
Using the form of a quadratic equation f(x) = ax^2 + bx + c, we can derive an equation for each of three given points (10,20,30 kph and their corresponding costs). Solving these simultaneously we would get the particular equation representing the situation. We could then apply this to calculate costs at various speeds including checking if it is possible to spend only 10 cents/km, determining an optimal speed range for a 13 cents/km cost, and finding the optimal speed and cost per km.
Explanation:To write a particular function that represents this scenario, we can set up three equations using the general form of a quadratic equation, which is f(x) = ax^2 + bx + c. In this case, our x-values are the speeds (10, 20, and 30 kph) and our f(x) values are the corresponding costs (28, 21, and 16 cents/km).
Substitute these values into the equation f(x) = ax^2 + bx + c, we get three equations:
100a + 10b + c = 28
400a + 20b + c = 21
900a + 30b + c = 16
By solving the system of equations, we could find the values of a, b and c. Then we would substitute the speed into the function to calculate the cost at 150 kph, and to find the speed range for a cost of 13 cents/km and check if it is possible to spend only 10 cents/km. Finally, the optimal speed and cost per km would be represented by the minimum point of the function, which in the case of a parabola occurs at x = -b/2a.
Learn more about Quadratic Functions here:https://brainly.com/question/35505962
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HELP!!!!!!!!!!!!!
To solve the equation 3x−2=4x−1 , Veronica graphs the functions f(x)=3x−2 and g(x)=4x−1
on the same set of coordinate axes.
Which statement describes the solution of the equation 3x−2=4x−1?
(A) The solution of the equation is the x-coordinate of the ordered pair where the graphs of the two functions intersect.
(B) The solution of the equation cannot be found graphically. Veronica should solve the equation algebraically.
(C) The solution of the equation is the y-coordinate of the ordered pair where the graphs of the two functions intersect.
(D) The solution of the equation is the y-intercept of the linear equations.
Answers
we have that
f(x)=3x-2
g(x)=4x-1
3x-2=4x-1-------------> 4x-3x=-2+1--- > x=-1
find the value of f(x) or g(x) for x=-1
f(x)=3x-2 -------> f(-1)=3*(-1)-2 ------> f(-1)=-5
the solution is the point (-1,-5)
using a graph tool
see the attached figure
the answer is
case (A) The solution of the equation is the x-coordinate of the ordered pair where the graphs of the two functions intersect.What is the following quotient? sqrt 120 / sqrt 30
Answers
cuz if so when you divide 120/30 you get 4 and the square root of 4 is 2
Answer:
[tex]2[/tex]
Step-by-step explanation:
we have
[tex]\frac{\sqrt{120}}{\sqrt{30}}[/tex]
we know that
[tex]\frac{\sqrt{120}}{\sqrt{30}}=\sqrt{\frac{120}{30}}=\sqrt{4} =2[/tex]
What is the probability that the card is either a face card or a spade?
Answers
Angle 2 and angle 3 are vertical angles. true or false
Answers
Answer: If you don't know the answer don't put one down but i do believe the answer is false.
Step-by-step explanation:
The statement 'Angle 2 and Angle 3 are vertical angles' can be true depending on their position, as vertical angles are those directly opposite from each other at the intersection of two lines.
Explanation:The question is asking about vertical angles. Vertical angles are pairs of non-adjacent angles formed when two lines intersect. This means they are the angles that are directly opposite from each other where the two lines intersect. So if Angle 2 and Angle 3 are directly opposite each other at the point where two lines cross, then they are indeed vertical angles. So, the statement 'Angle 2 and Angle 3 are vertical angles' can be true depending on their placed positions.
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HELP! This circle graph shows the results of a survey that asked people to identify their favorite type of music. What percent of people chose rock or country as their favorite type of music? 9% 35% 45% 55%
A circle graph with 5 sections. The first section is labeled Rock 27 percent. The second section is labeled Hip Hop 28 percent. The third section is labeled Jazz 19 percent. The fourth section is labeled Country 18 percent. The fifth section is labeled Other 14 percent.
Answers
The percentage that choose rock or country is 45%
From the circle graph, we have the following parameters:
Rock = 27%.
Hip Hop = 28%
Jazz = 19%.
Country = 18%
Other = 14%
The percentage that choose rock or country is then calculated as:
Rock or Country = 27% + 18%
Rock or Country = 45%
Hence, the percentage that choose rock or country is 45%
Read more about circle graphs at:
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The explicit rule for a sequence is
an=17−5n .
What is the recursive rule for the sequence?
can you explain also
Answers
[tex]a_n=a_1+d(n-1)[/tex], where a₁ is the first term of the sequence and d is the common difference. Since we have [tex]a_n=17-5n[/tex], we know that n is multiplied by 5. That means that d must be 5, since that is the only thing that n gets multiplied in our general form. This gives us:
[tex]a_n=a_1+5(n-1) \\ \\a_n=a_1+5*n-5*1 \\ \\a_n=a_1+5n-5[/tex]
We know that we add something to 5n and then subtract 5 to get 17. Cancelling this process, we can add 5 to 17 to get 22. This gives us
[tex]a_n=22+5(n-1)[/tex]
We know that our first term, a₁, is 22 and our common difference, d, is 5.
The general form of a recursive formula for an arithmetic sequence is
[tex]a_n=a_n_-_1+d[/tex], where d is the common difference and [tex]a_n_-_1[/tex] is the previous term. We know that d is 5, so our recursive formula is
[tex]a_n=a_n_-_1+5[/tex]
The simplest form of square root of eighty can be written as a times square root of b, where a
Answers
a = 4
b = 5 I'm guessing.