Answer: length=6 feet
Step-by-step explanation:
For this you need to create one equation from the question and use the equation for perimeter.
equation 1 is 2W+2L=P where perimeter is 43.
equation 2 is w=3L-2.5
-Now you want to take equation two and plug it into equation 1 for w to find L
It will be 2(3L-2.5)+2L=43 and you want to solve for L
distribute the 2 2(3L-2.5)+2L=43
add up the Ls 6L-5+2L=43
add 5 to each side 8L-5=43
divide each side by 8L=48
Then you get L=6
Now use L=6 to plug into equation two to get W(width)
w=3(6)-2.5=18-2.5=15.5
Now plug in both W and L into equation 1 to make sure you get 43
P=2(15.5)+2(6)=32+12=43 this means that w and l are correct and you get the perimeter given. So length (L) is 6.
Write an equation of a line passing through the point (-4, -11) and perpendicular to the line 4x + 5y = -45.
The required equation of the line is given as y = 5x -6.
To determine the equation of a line passing through the point (-4, -11) and perpendicular to the line 4x + 5y = -45.
What is the slope of the line?The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.
Here,
The slope of the given line
4x + 5y = -45
y = -4/5 - 45
m = -4/5
The equation of the perpendicular line is given as,
y - y₁ = -1/m (x - x₁)
Substitute the value in the above equation,
y + 11 = -1 / -4/5 (x + 4)
y = 5/4(x + 4) - 11
y = 5x + 5 - 11
y = 5x -6
As a result, the needed equation for the line is y = 5x -6.
Learn more about slopes here:
https://brainly.com/question/3605446
#SPJ1
please help me with math i’ll give you brainlist
Answer:
Step-by-step explanation:
Domain = Range = (19,77,10,9\5,0,100)
A metallurgist has one alloy containing 28% aluminum and another containing 59% aluminum. How many pounds of each alloy must he use to make 42 pounds of a third alloy containing 30%
The number of pounds from one alloy is 2.71.
The number of pounds from another alloy is 39.29.
What is an equation?An equation is a mathematical statement of two expressions connected by an equal sign.
We have,
x = pounds from one alloy
y = pounds from the second alloy
Two equation.
28% of x + 59% of y = 30% of 42
0.28x + 0.59y = 0.30 x 42 ______(1)
x + y = 42 _____(2)
Now,
x = 42 - y ________ (3)
Putting (3) in (2)
0.28(42 - y) + 0.59y = 0.30 x 42
11.76 - 0.28y + 0.59y = 12.6
11.76 + 0.31y = 12.6
0.31y = 12.6 - 11.76
0.31y = 0.84
y = 2.71
Now,
x = 42 - y
x = 42 - 2.71
x = 39.29
Thus,
The number of pounds of each alloy is 2.71 and 39.29.
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ1
please help I don't know what to do.
The following is a list of movie tickets sold each day for 10 days.
14, 35, 20, 23, 42, 87, 131, 125, 64, 92
Which of the following intervals are appropriate to use when creating a histogram of the data?
0 – 29, 30 – 59, 60 – 89, 90 – 119, 120 – 149
0 – 30, 30 – 55, 55 – 80, 80 – 105, 105 – 130
0 – 24, 25 – 49, 50 – 74, 75 – 99, 100 – 125
0 – 35, 35 – 70, 70 – 105, 105 – 140
The following class intervals should be utilized when making a histogram out of the data: 0 - 30, 30 - 55, 55 - 80, 80 - 105, and 105 - 130. B is the best choice.
What do histograms mean?To visually depict data, a histogram is utilized. The histogram is made up of rectangles with widths equal to the class interval and areas equal to the frequency of the data.
The intervals' widths must match. This implies that there must be an equal distance between the lower bound and the higher bound. Additionally, the lower bound of the subsequent interval's interval must match both its upper and lower bounds.
This means that the intervals must be overlapping. Of all the options, it is 0 – 30, 30 – 55, 55 – 80, 80 – 105, and 105 – 130 that satisfy both conditions.
To learn more about histograms, please check:
brainly.com/question/16819077
#SPJ1
Answer:i do believe that it shall be D
Step-by-step explanation: 14 20 23 35 42 64 87 92 125 131 are the order so D can incase all of them
please look at the picture and answer all the problems (I GIVE U LIKED AND POINTS!)
Answer:
Inequality
a. x<=5
b. x>12
c. x<=-4
d. x>-6
Word Problems
6. x>65
7. x<90
8. x>985
9. x>12
Step-by-step explanation:
Which of the following properly expresses the
verbal
statement "The square root of a number, x, is 5
less than
the sum of the number and 2" ?
F. √x = 5-(x + 2)
G√√√x = (x + 2)-5
Answer:F. √x = 5-(x + 2)
Step-by-step explanation:
Select all of the algebraic expressions that could represent the phrase below.
"nine more than the product of 5 times the number of tires t"
Answer:
a,b,d
Step-by-step explanation:
Answer:
Option A: 9 + 5t
Option B: 5 · t + 9
Option D: (5 × t) + 9
Step-by-step explanation:
Hope This Helped
a racing venue wants to make the charity race 5% longer. If the race was 25km, what is the new race length
The length of the racing venue after the increase of 5 % is 26.25 km
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the increased length of the racing venue be = A
Let the total length of the racing venue be = 25 km
The percentage increase in the length of the racing venue = 5 %
So , the equation will be
Increased length of the racing venue = total length of the racing venue + ( percentage increase in the length of the racing venue x total length )
Substituting the values in the equation , we get
Increased length of the racing venue = 25 + ( 5/100 ) x 25
Increased length of the racing venue = 25 + ( 5/4 )
Increased length of the racing venue = 25 + 1.25
Increased length of the racing venue = 26.25 km
Therefore , the value of A is 26.25 km
Hence ,
The length of the racing venue after the increase of 5 % is 26.25 km
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ1
What happens to y = x when the slope is changed to a negative number?
If the slope is a negative number for example, y = - x then it would go up one and to the left one because it's a negative number. Negative slopes will always go through the coordinate plant II and IV
Help with this im being called a failure
Roaring Zoo has 76 different species of birds. Because of cold weather, only 32 species stayed at the zoo, while the others were transported to the barn until warmer weather returned.
Which equation shows how many species of birds were transported?
b − 32 = 76
b + 32 = 76
b − 76 = 32
b + 76 = 32
Answer:
b + 32 = 76
Step-by-step explanation:
Find the slope of the line that passes through (3, 14) and (8, 8).
Answer:
-6/5
Step-by-step explanation:
you would find the difference between the ys and the XS then divide the product of those by [tex]\frac{y}{x}[/tex].
Which of the tables is the appropriate table of conditional percents to discover if the type of student who takes a statistics class at different times of the day affects smoking status?
Three two-way tables are displayed. All three have Smoking (quit, never smoked, and smoker) in the rows and Time of Statistics Class (day, evening) in the columns. The last column in Table A also is a Total column. Table A has the following entries given row by row: quit, 16.7%, 83.3%, 100%; never smoked, 66.7%, 33.3%, 100%; smoker, 25.0%, 75%, 100%. The last row and the last column in Table B are Totals. Table B has the following entries given row by row: quit, 2.7%, 13.7%, 16.4%; never smoked, 52.1%, 26.0%, 78.1%; smoker 1.4%, 4.1%, 5.5%; Total, 56.2%, 43.8%, 100%. The last row in Table C is a Total row. Table C has the following entries given row by row: quit, 4.9%, 31.2%; never smoked, 92.7%, 59.4%; smoker, 2.4%, 9.4%; Total, 100%, 100%.
Table A
Table B
Table C
QUESTION 2
Consider the hyperbolic function (y + 2)(x − 4) = 3.
2.1 Write down the domain and range of the function.
find the slope of the line with y=7x+2/3
Answer:
slope is 7
Step-by-step explanation:
write
equation parallel
through (4,9) (-3,6) and
passes (14,8)
The equation of the line is 3x - 7y + 51 = 0.
What are Parallel Lines ?
Coplanar, parallel lines that don't cross at any point are called parallel lines. Planes in the same three-dimensional space that never cross each other are said to be parallel.
Since the required line is parallel to the line that passes through (4,9) and (-3,6).
So, The slope will be equal to :
m = (y^2 - y^1) / (x^2 - x^1)
here, x^1 = 4, y^1 = 9, x^2 = -3 and y^2 = 6
∴ m = (6 - 9) / (-3 - 4)
= -3/-7
= 3/7.
We know that, The equation of a line is (y - y^1) = m (x - x^1)
∴ The equation of the required line will be :
y - 9 = 3/7 ( x - 4)
7y - 63 = 3x - 12
3x - 7y + 51 = 0.
Learn more about Parallel lines from the link given below:
https://brainly.com/question/24607467
#SPJ1
Can someone pls help me with this I’ll mark brainliest
Aretha had $180 in her bank
account at the end of the week. She
wrote a check for $120, deposited
$250, and spent $75 on groceries
during the week. How much was
in her account at the start of the
week?
should be about $625
Just add all the number up and then subtract the answer you got with the same number except 180 since that's what she has left over. correct me if I'm wrong.
explain the pattern you found on the table
Picture 1 has 5 green squares. It is one square with a square coming out from each corner.
Describe the table pattern you noticed ? Picture 2 adds an additional square extending out from each corner square, making a total of 9 squares. This pattern continues, adding 4 green squares total each time. This means Picture 3 has 13 squares, Picture 4 has 17 squares, and Picture 5 will have 21 green squares.Picture one has 5 green squares. It is one square with a square coming out from each corner. Picture 2 adds an additional square extending out from each corner square, making a total of 9 squares. This pattern continues, adding 4 squares total each time. This means Picture 3 has 13 squares, Picture 4 has 17 squares, and Picture 5 will have 21 squares.To learn more about table pattern refer
https://brainly.com/question/23861422
#SPJ1
y-5=1/2(x-4) what are the coordinates
Answer:
The ordered pair (3, 4) is found in the coordinate system when you move 3 steps to the right on the x-axis and 4 steps upwards on the y-axis.
Step-by-step explanation:
hope this helped:)
brainliest for the brains:)
As part of a survey, 200 boys were asked to name their favorite sport. The results showed that 120 of the boys names football as their favorite sport. What percentage of the boys in the survey named football as their favorite sport?
The percentage of the boys in the survey who named football as their favourite sport is 60%.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given as part of a survey, 200 boys were asked to name their favourite sport. The results showed that 120 of the boys names football as their favourite sport.
The percentage of boys who like football as their favourite sport will be calculated as,
Percentage = 120 / 200
Percentage = 0.6 x 100
Percentage = 60%
To know more about percentages follow
https://brainly.com/question/24304697
#SPJ1
Thomas earned $46.50 in 4 hours at his job today. How much can he earn tomorrow if he works 10 hours at the same hourly rate? Do NOT include a dollar sign in your answer.
Answer:
116.25 0r 116.30
Step-by-step explanation:
To find the hourly rate, divide the pay by the number of hours
So 46.50/4 = 11.625
You should round that to 11.63
Then, multiply the hourly rate by the number of hours worked the next day.
So 11.63 x 10 = 116.30
Given quadrilateral ABCD with A(-4,-2), B(-3,2), C(2,4) and D(4,-3). Find the area in square units.
The area of the quadrilateral ABCD, with the vertices coordinates A(-4, -2), B(-3, 2), C(2, 4), and D(4, -3), is 18 square units
What is a quadrilateral?A quadrilateral is a four sided polygon, that has a sum of the interior angles of 360°
The area of the quadrilateral can be calculated as comprising of the area of two triangles, with vertices; B(-3, 2), C(2, 4), D(4, -3), and B(-3, 2), C(2, 4), A(-4, -2)
The area of a triangle with known coordinates of the vertices is precented as follows;
Let (x₁, y₁), (x₂, y₂), (x₃, y₃) represent, the vertices of the triangle, we get;
A = 0.5×|x₁·y₂ - x₂·y₁ + x₂·y₃ - x₃·y₂ + x₃·y₁ - x₁·y₃|
Therefore;
The area, A₁ of the triangle ΔBCD with vertices at the coordinates (-3, 2), (2, 4), (4, -3), is found as follows;
A₁ = 0.5 × |(-3)×4 - 2×2 + 2 ×(-3) - 4 × 4 + 4×2 - (-3)×4| = 9
Similarly, the area, A₂, of the triangle, ΔBCA with vertices (-3, 2), (2, 4), (-4, -2), is found as follows;
A₂ = 0.5 × |(-3)×4 - 2×2 + 2 ×(-2) - (-4) × 4 + (-4)×2 - (-3)×(-2)| = 9
The area of the quadrilateral, A = A₁ + A₂, is therefore;
The area of the A = 9 + 9 = 18
The area of the quadrilateral ABCD is 18 square units
Learn more about quadrilaterals here:
https://brainly.com/question/26690979
#SPJ1
The given point P is located on the unit circle, similar to what is seen in the image below, determine the sine and cos e(P is
not necessarily in Quadrant I).
(0,1)
(-1,0)
(0,-1)
(1,0)
PLS HELP ME ASAP
The sine and cosine of the angle of point P are sin θ = 143/145 and cos θ = -24/145 respectively. Option b. is the answer
How to determine the sine and cosine of the angle of point P?Given the coordinate of the point as P (-24/145, 143/145)
This implies x = -24/145 and y = 143/145
To determine the sine and cosine of the angle of point P, we can make a sketch using this information (see attached image).
opposite = 143/145, adjacent = -24/145
hypotenuse = √[(-24/145)² + (143/145)²] = √1 = 1
Using trigometric ratios:
sin θ = (143/145) / 1 = 143/145 [sin θ = opposite/ hypotenuse]
cos θ = (-24/145) / 1 = -24/145 [cos θ = adjacent/ hypotenuse]
Learn more about trigonometry on:
brainly.com/question/29354606
#SPJ1
find the value of expression of 1/8 + 4 7/8
Answer:
Hope the picture will help you
find x . geometry please help
The value of x in the circle is given as follows:
x = 23.
How to calculate the value of x?The value of x in the circle is calculated using the tangent-secant theorem, which states that when a secant and a tangent are drawn to a circle from the same external product, the product of the length of the secant and of it's external segment equals the square length of the tangent segment.
The parameters for this problem are given as follows:
Secant: 27 + 2x + 2 = 2x + 29.External segment: 2x + 2.Tangent: 3x - 9.Then, the value of x is obtained applying the product from the tangent-secant theorem as follows:
(2x + 29)(2x + 2) = (3x - 9)²
4x² + 62x + 58 = 9x² - 54x + 81
5x² - 116x + 23 = 0.
Which is a quadratic equation with the coefficients given as follows:
a = 5, b = -116, c = 23.
Using a quadratic equation calculator, the solutions are given as follows:
x = 0.2 -> extraneous, as the length 3x - 9 would be negative.x = 23.More can be learned about the tangent-secant theorem at https://brainly.com/question/9132922
#SPJ1
Solve the inequality
1. 2x
Answer:
where is the question
Step-by-step explanation:
Please you need to write the full question so it can be answered
thanks
Rewrite 26/9 as a mixed number
please help! I'm almost out of time on my assignment
y=-2x coordinate plane
Answer:
The Y=-2x coordinate plane is a two-dimensional plane that represents all possible points with coordinates that satisfy the equation Y=-2x. The Y axis is the vertical axis, and the X axis is the horizontal axis. A point on the Y=-2x coordinate plane can be represented by an ordered pair (x, y), where x is the distance of the point from the Y axis, and y is the distance of the point from the X axis. In the Y=-2x coordinate plane, the Y coordinate of a point is always equal to -2 times the X coordinate of that point.
Step-by-step explanation:
Prehistoric cave painting were discovered. The paint contained 5% of the original carbon-14. Estimate the age of the paintings using the exponential decay model for carbon-14, A=A_0e ^-0.000121t (round to the nearest whole number as needed.)
About 24 ,758 years have passed since the cave drawings were created.
What is the age formula?If one's age is x now, one's age will be nx in the future. Age n years from now equals x + n if the age at currently is x. Age n years ago equals x - n if the current age is x. The ages will be ax and bx in the ratio a: b.
What is the measure age?The time since birth, which is typically expressed as an exact number of years or a finished number of years, is known as a person's chronological age.
A is the current sum.
A0 is the original sum.
A0 = A0 A0 = A0 0.05 e-0.000121t
A / A0 = e-0.000121t
0.05 = e-0.000121t, 0.05 = ln e-0.000121t, 0.05 = -0.000121t, 0.05 = e, and 0.05 = -0.000121t, respectively.
To learn more about Estimation of age visit:
https://brainly.com/question/28792084
The artwork is 24,758 years old, according to the exponential equation's solution.
Is power equivalent to exponential?Exponents are frequently referred to as strengths or indices. In plain English, a power expression is one that depicts the same number being multiplied repeatedly, whereas an exponent is a quantity that depicts the powers to which the value is increased.
Briefing:A = current amount
A₀ = original amount
0.05 A₀ = A
A = A₀ [tex]e^{-0.000121t}[/tex]
A / A₀ = [tex]e^{-0.000121t}[/tex]
0.05 = [tex]e^{-0.000121t}[/tex]
ln 0.05 = ln [tex]e^{-0.000121t}[/tex]
ln 0.05 = -0.000121t ln e
ln 0.05 = -0.000121t
-2.9957 ≈ -0.000121t
24758.11 ≈ t
About 24,758 years have passed since the cave drawings were created.
To know more about Exponential visit:
https://brainly.com/question/28596571
#SPJ4