Answer:
y= -1 , -3 , -5
Step-by-step explanation:
2x-3y=9
2x-9=3y
2x-9/3=y
when x=0
y= -9/3
y= -3
when x= 3
y = 2(3)-9/3
= 6-9/3
= -3/3
y = -1
when x= -3
y = 2(-3)-9/3
y= -6-9/3
y= -15/3
y= -5
To solve the equation 2x-3y=9 for y in terms of x, firstly move the '2x' on right side of the equation to get -3y = -2x + 9. Multiply each term by -1 to get 3y = 2x - 9. And then divide each term by 3 to get y = (2/3)x - 3.
Explanation:In order to solve the equation 2x-3y=9 for y in terms of x, we first isolate y. The first step would be to move '2x' part to the right side of the equation. It becomes like this: -3y = -2x + 9 or simply, 3y = 2x - 9 where we multiplied every part of the equation by -1. Now, the next step is to get rid of '3' that is multiplying 'y'. For this, you divide entire equation by '3'. Hence, y = (2/3)x - 3. So, the equation for y in terms of x is y = (2/3)x - 3.
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What is bigger -8 or 5
5 is bigger because its right of your number line and it isn’t -8 because it below 0 and left of the number
An antique vase sells for $80. If the price increases by 18%,and then decreases by 20%,what is the new price
Answer:
It would be 78.40 if it increase and decreases from its original price
Answer: the answer should be
72
Step-by-step explanation:
1. 80 x 0.18 or 18%=14.4
2. 14.4 divided by 0.20 or 20%=72
The endpoints of cd are C (-4,10) and D (-4,10) the coordinates of the midpoint M of CD are
The endpoints C and D has no midpoint M.
Step-by-step explanation:
step 1: The given endpoints of C and D are (-4,10) and (-4,10)
step 2: Midpoint formula = ((x1+x2)/2 , (y1+y2)/2)
step 3: Here, C(-4,10) = (x1,y1)
D(-4,10) = (x2,y2)
step 4: The midpoint represents the half distance of the line CD. Since C and D are same points, they cannot form a line. Therefore, the endpoints CD have no midpoint.
8.4(7x-4)+3.9 simplified
To simplify the expression 8.4(7x-4)+3.9, distribute 8.4 to both terms inside the parentheses and then add 3.9, resulting in 58.8x - 29.7.
Explanation:The problem 8.4(7x-4)+3.9 requires simplification by applying the distributive property and then combining like terms. First, multiply 8.4 by both 7x and -4, and then add the constant 3.9 to the result.
Multiply 8.4 by 7x: 8.4 imes 7x = 58.8x.Multiply 8.4 by -4: 8.4 imes -4 = -33.6.Add the constant: -33.6 + 3.9 = -29.7.Combine the terms: 58.8x - 29.7 is the simplified expression.
26.35 rounded to the nearest hundred
Answer:
Nearest hundred: 0
Nearest hundredth: 26.35
Step-by-step explanation:
The hundred place value is three numbers to the left of the dot.
The two hundreds that are nearest to 26.35 are 0 and 100. To decide if you should round up (to 100) or round down (to 0), use the place value that is to the right of the hundred place: the number you are using is 2.
The rule for rounding:
Round up if the place value is 5 or more
Round down if the place value is 4 or less
Since 2 is "4 or less", round down to 0.
Since 26.35 is closer to 0 than 100:
26.35 => 0 when rounded to the nearest hundred
In case you meant hundredth:
The nearest hundredth means two decimal places, or two numbers right of the dot.
The number 26.35 already has two decimal places, so rounded to the nearest hundredth is still 26.35.
26.35 => 26.35
10 minus three times a number is no more than 61
Answer:
n ≥ -17
Step-by-step explanation:
Writing a symbolic inequality, we get:
10 - 3n ≤ 61
Solve this for 3n by adding 3n to both sides of this equation:
10 ≤ 61 + 3n
Solve for n by subtracting 61 from both sides and then dividing all of the resulting terms by 3:
-51 ≤ 3n (divide both sides by 3):
-17 ≤ n, or
n ≥ -17
Nicole Nichols purchased a new carpet for $287 and a vacuum cleaner for $121. What is the sales tax if she
lives in Iowa where the sales tax rate is 5 percent?
a. $31.99
c. $20.40
b. $19.98
d. $24.48
Answer:
$20.40 is the sales tax if she lives in Ohio where the sales tax rate is 5 percent.
Step-by-step explanation:
What is 36 divided by 25 in a simplified fraction
Answer:
It's already in it's most simplified form.
Step-by-step explanation:
Answer:
1 [tex]\frac{11}{25}[/tex]
Step-by-step explanation:
You want to write out the fraction from the division problem.
To do this you want to know that the number that is being DIVIDED BY (or 36 in this problem) is the numerator (the number on top in the fraction) and the number DIVIDING the number that is being divided by is the denominator (or 25 in this problem).
You can then write this as the fraction [tex]\frac{36}{25}[/tex] . Next you want to change this into a mixed number to simplify the fraction. To simplify you want to do 36-25 because 36 exceeds 25. 36-25=11. Because you have 11 remaining you would keep it with the 25th fraction. The completed fraction should look like this 1 [tex]\frac{11}{25}[/tex] .
y = 0.0043x3 − 0.24x2 + 0.583x + 199.8
what does this look like graphed ?
Answer:
Table and graph attached
Step-by-step explanation:
Graph of a Function
Given a real function f(x), we can construct its graph by taking random values for x, computing f(x) for each selected value, and plotting the pairs (x,f(x)) in a rectangular grid. By joining the points we get an approximate graph.
It's not always easy to find an appropriate set of values for x which makes the important part of the graph be clearly shown in the graph. We select the range for x between -30 and +70. The results are shown in the table below.
The graph is also shown in the second image provided.
Enter the unknown value that makes this statement true.
20% of ______ is 120
Answer:
20% of 600 is 120
Step-by-step explanation:
We shall use X as the variable
20% of x is 120
To find 20 percent of something, divide by 5.
Alternatively, you can find 10% of it then multiply by two.
600÷5 is 120
We see that 20% of 600 is 120
prove equal chord of a circle substend equal angle at centre
Answer:
The Proof for "Equal chord of a circle subtends equal angle at the Center".
Step-by-step explanation:
Consider a Circle with center as C,
Radius AC ,BC ,DC and EC
Chord AB = Chord CD
To Prove:
"Equal chord of a circle subtends equal angle at center".
i.e ∠ACB = ∠ECD Which are Center angle
Proof:
In Δ ABC and Δ DEC
Chord AB ≅ Chord DE .….{Given}
AC ≅ DC …..{Radius of Same Circle}
BC ≅ EC ….{Radius of Same Circle}
Δ ABC ≅ Δ DEC ….{By Side-Side-Side Congruence Postulate}
∴∠ACB ≅ ∠ECD ...{Corresponding Parts of Congruent Triangles are Congruent or CPCTC} ....Proved
i.e Equal chord of a circle subtends equal angle at the Center.
systems of equations
15x-4y=62
5x+8y=86
Answer:
y = 7 and x = 6
Step-by-step explanation:
15x-4y=62 ---------------------------(i)
5x+8y=86-----------------------------(ii) X 3
15x+24y=258---------------------------(iii)
(iii)-(i)
28y = 196
y = 7
Sub. for y in (I) to get x
x = 6
Final answer:
The system of equations 15x - 4y = 62 and 5x + 8y = 86 is solved using the method of elimination, yielding the solution x = 6 and y = 7.
Explanation:
We are asked to solve a system of equations:
15x - 4y = 625x + 8y = 86We will use the method of elimination to solve this system, which involves manipulating the equations so that adding or subtracting them will eliminate one of the variables, allowing us to solve for the other.
Multiply the second equation by 3: 15x + 24y = 258.Subtract the first equation from the modified second equation: 15x + 24y - (15x - 4y) = 258 - 62.This gives us 28y = 196, and solving for y gives us y = 7.Substitute y = 7 into the first original equation to find x: 15x - 4(7) = 62.Solve for x: 15x - 28 = 62, which gives x = 6.Therefore, the solution to the system of equations is x = 6 and y = 7.
Supposed that a defined population is all men and a survey is being conducted. which of these is an example of selection bias?
Answer:no it's not because bias Is your opinion ( like if you say dogs are the best that's your opinion only
Step-by-step explanation:
Answer:
Excluding women with children from the selection process of the survey
Step-by-step explanation:
The correct answer is: Excluding women with children from the selection process of the survey.
Which expression is equivalent to 8/15?
A. 8÷1/5
B. 8÷15
C. 15÷1/8
D. 15÷8
Answer: B is the answer
Step-by-step explanation:
A line is perpendicular to y= 1/2x-9 and intercepts the point (3,2) what is the perpendicular line
Answer:
Y= -2x +8
Step-by-step explanation:
We know the line is perpendicular so the slope is negative inverse of 1/2, which is -2.
Now to find b, plug into equation
Y= -2x+ b
2= -2(3) +b
2= -6+ b
2+6= b
8=b
Answer:
-2x+8
Step-by-step explanation:
What is the product (3x-6)(2x2-7x+1)
Answer:
[tex]\large\boxed{6x^3-33x^2+45x-6}[/tex]
Step-by-step explanation:
[tex]\text{Use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(3x-6)(2x^2-7x+1)\\\\=(3x)(2x^2)+(3x)(-7x)+(3x)(1)+(-6)(2x^2)+(-6)(-7x)+(-6)(1)\\\\=6x^3-21x^2+3x-12x^2+42x-6\qquad\text{combine like terms}\\\\=6x^3+(-21x^2-12x^2)+(3x+42x)-6\\\\=6x^3-33x^2+45x-6[/tex]
Which of the following is equal to the rational expression when X not equal -4 or 3?
x2 - 4x + 3
X^2+ X - 12
Answer:
A
Step-by-step explanation:
Given
[tex]\frac{x^2-4x+3}{x^2+x-12}[/tex]
Factorise the numerator and denominator
x² - 4x + 3 = (x - 1)(x - 3)
x² + x - 12 = (x + 4)(x - 3), thus
= [tex]\frac{(x-1)(x-3)}{(x+4)(x-3)}[/tex] ← cancel (x - 3) on numerator/denominator
= [tex]\frac{x-1}{x+4}[/tex] → A
Rational expression are written as fractions. The simplified form of the expression is [tex]\frac{x-1}{x+4}[/tex]
Rational expressionsRational expression are written as fractions.
Given the rational expression
[tex]\dfrac{x^2-4x+3}{x^2+x-12}[/tex]
Factorize the numerator and denominator
[tex]=\dfrac{x^2-4x+3}{x^2+x-12}\\=\dfrac{x^2-3x-x+3}{x^2+4x-3x-12}\\=\frac{(x-3)(x-1)}{(x+4(x-3)} \\=\frac{x-1}{x+4}[/tex]
Hence the simplified form of the expression is [tex]\frac{x-1}{x+4}[/tex]
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BRAINLIEST AND 50 PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which statement is correct about the product of 4/5 and 11/9 ?
A. Because 11/9 is greater than 1, the product of 4/5 and 11/9 is greater than 4/5 .
B. Because 11/9 is less than 1, the product of 4/5 and 11/9 is less than 4/5 .
C. Because 11/9 is greater than 1, the product of 4/5 and 11/9 is less than 4/5 .
D. Because 11/9 is less than 1, the product of 4/5 and 11/9 is greater than 4/5 .
Answer:
The answer is A. Because 11/9 is greater than 1, the product of 4/5 and 11/9 is greater than 4/5
9/9 is exactly 1. 11/9 is greater than 9/9, so 11/9 is greater than 1. If I added 4/5, the answer is larger than 11/9, therefore the answer is A.
Answer:
A. Because 11/9 is greater than 1, the product of 4/5 and 11/9 is greater than 4/5
Step-by-step explanation:
Hope this helps!
p. John roller skates with a constant
speed of 12 miles per hour. How long
will he take to travel a distance of
30 miles?
Answer:
2 1/2 hours
Step-by-step explanation:
1. multiply 12 by 2 to get 24
2. divide 12 by 2 to get 6 mph (miles per hour)
3. Add the 6 and 24
A group of students go out for lunch. If two have
hamburgers and five have hot dogs, the bill will be
$8.00. If five have hamburgers and two have hot dogs,
the bill will be $9.50. What is the price of a hamburger?
Answer:
1.50$
Step-by-step explanation:
2 hamburgers would equal 3$ and if the hot dogs are 1$ each it woul make the equation true
To find the price of a hamburger, set up a system of equations and solve for the price using the given information. So, the price of a hamburger is $2.50
Explanation:To find the price of a hamburger, we can set up a system of equations based on the given information.
Let x be the price of a hamburger.
From the first scenario, we have 2x + 5(0.50) = 8.00.
From the second scenario, we have 5x + 2(0.50) = 9.50.
Simplifying these equations gives us 2x + 2.50 = 8.00 and 5x + 1.00 = 9.50.
Solving these equations, we find that x = $2.50.
Therefore, the price of a hamburger is $2.50.
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What is the next step in the construction of a regular hexagon?
Answer:
With compass setting the same as line segment PA, place the compass
at C and draw an arc that intersects the circle ⇒ answer D
Step-by-step explanation:
Lets revise the step of construction a regular hexagon
1. Draw circle with center P; put point A on the circle's edge at
any place
2. With compass setting the same as line segment PA, place the
compass at A and draw an arc that intersects the circle at B
3. With compass setting the same as line segment PA, place the
compass at B and draw an arc that intersects the circle at C
4. With compass setting the same as line segment PA, place the
compass at C and draw an arc that intersects the circle at D
5. Contain with the same step of placing the compass at the previous arc and draw an arc with same distance of PA until you reach point A again, then join each arc on the circle forming the regular hexagon
The given steps are:
Circle with center P; point A is along the circles edge, an arc at point B
is along the circles edge, and an arc at point C is along the circles edge
According to the steps above, the next step is:
With compass setting the same as line segment PA, place the
compass at C and draw an arc that intersects the circle (step 4)
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The next step will be to use a compass and a straight edge to draw the second equilateral triangle with side AB. Option B is correct
Given that,
To determine the next step in the construction of a regular hexagon.
What is a polygon?A polygon is defined as a geometric shape that is composed of 3 or more sides these sides are equal in length, and an equal measure of angle at the vertex,
Examples of the polygon, equilateral triangle, square, pentagon, etc
Here,
The next step is to draw a straight edge through the corresponding arc to the side AB, to form the second equilateral triangle.
Thus, the next step will be to use a compass and a straight edge to draw the second equilateral triangle with side AB. Option B is correct
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the perimeter of a square is 66.8 cm. What is the side lengh of the square
Side length = 16.7 cm
Solution:
Perimeter of a square given = 66.8 cm
In a square four sides are equal.
The perimeter of a square = 4 × side
⇒ 4 × side = 66.8 cm
Divide both sides of the equation by 4 to equal the expression.
⇒ side = 66.8 ÷ 4
⇒ side = [tex]\frac{66.8}{4}[/tex]
⇒ side = 16.7 cm
Hence, the side length of the square is 16.7 cm.
Part A: Create a system of linear equations with no solution. In two or more complete sentences, explain the specific characteristics that you included in each equation to ensure that the system would not have a solution.
Part B: Using one of the equations that you created in Part A, create a system of linear equations that has one solution (x, y). Use substitution to solve the system.
So I chose y = 4x + 4 and y = 4x - 4
And I wanna use y = 4x + 4 for part B. For my other part I will use y = -4x - 4
So far I have 4x + 4 = -4x - 4
What do I do next?
Answer:
sbf fb
Step-by-step explanation:
step step step
Answer:
sorry this was a year ago
Step-by-step explanation:
A rectangle is 2 times as long as it is wide. If the area is 50 square feet, find its perimeter
Answer:
P=30
Step-by-step explanation:
width = x
length = 2x
2x^2=50
/2 /2
x^2=50
[tex]\sqrt{x^{2} }[/tex] = [tex]\sqrt{25}[/tex]
x=5
width=5
length=10
2width + 2length = Perimeter
10+20=P
30=P
Final answer:
The width of the rectangle is determined to be 5 feet using the area formula, leading to a length of 10 feet. The perimeter is then calculated using the sum of twice the length and twice the width, resulting in a perimeter of 30 feet.
Explanation:
To solve for the perimeter of a rectangle where the area is 50 square feet and the length is twice the width, we first use the given information to set up an equation. Let the width be w feet. Therefore, the length will be 2w feet. The area A of a rectangle is given by the formula A = length times width, so in this case, A = 2w times w = 50.
Solving for w, we have w² = 25, which gives us w = 5 feet. The length, therefore, is 2 times 5 = 10 feet. The perimeter P of a rectangle is given by P = 2 times (length + width), so the perimeter of this rectangle is P = 2 times (10 + 5) = 30 feet.
Help please? I am stuck
Answer:
16 oatmeal cookies.
Step-by-step explanation:
How do you answer 64 divided by 2.56
Answer:
25
Step-by-step explanation: by dividing
What set of transformations is performed on LMNO to form L’ M’ N’ O’ ?
Answer:
its the third one
Answer:
A) A 90 degree counterclockwise rotation about the origin followed by a translation 1 unit to the left
Step-by-step explanation:
The formula to do a 90 degree counterclockwise rotation is (x, y) to (y, -x) so if the ordered pair is (5, 3) and you were to rotate it counterclockwise it would be (3, -5). Once you do this to all of the values, you are one unit to the right of what you should be, so then you would have to translate it 1 to the left in order to match up both of the trapezoids.
what is 3y+14-2=0 in substitution
Answer:
y=-4
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3y+14−2=0
3y+14+(−2)=0
(3y)+(14+(−2))=0 (Combine Like Terms)
3y+12=0
3y+12=0
Step 2: Subtract 12 from both sides.
3y+12−12=0−12
3y=−12
Step 3: Divide both sides by 3.
3y/3= −12/3
y=−4
Answer:
y=−4
The average score on the statistics final exam was 85 and the standard deviation was 2.5 . Chris scored a 95 . Chris scored higher than what percent of his class?
Answer:
55%
Step-by-step explanation:
its honestly just a guess
Line V has a slope of 8/9. Line w is perpendicular to V. What is the slope of line W?
Answer:
W = -9/8
Step-by-step explanation:
for two perpendicular lines
W*V = -1
W = 9/8*(-1)
W= -9/8
Final answer:
The slope of line W, which is perpendicular to line V with a slope of 8/9, is -9/8.
Explanation:
The slope of a line perpendicular to another in a two-dimensional plane is the negative reciprocal of the original line’s slope. Given that line V has a slope of 8/9, the slope of the perpendicular line W would be -9/8. This is because the product of the slopes of two perpendicular lines is -1 (negative one). Therefore, the slope of the line W, which is perpendicular to V, is -9/8.