Write the equation of each line in
slope-intercept form.
The line parallel to y = 5x + 1 that passes through (-1, 2).
O y = 5x + 7
O y = -1/5x+ 2
O y = -5x-1
O y = 5x + 1
keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above
[tex]y = \stackrel{\stackrel{m}{\downarrow }}{5}x+1\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
so we're really looking for the equation of a line whose slope is 5 and that it passes through (-1 , 2)
[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{2})\hspace{10em} \stackrel{slope}{m} ~=~ 5 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{ 5}(x-\stackrel{x_1}{(-1)}) \implies y -2= 5 (x +1) \\\\\\ y-2=5x+5\implies {\LARGE \begin{array}{llll} y=5x+7 \end{array}}[/tex]
A scale drawing of a rectangular park is 8 inches wide
and 11 inches long.
The actual park is 330 yards long. What is its area?
Use paper to help you with your thinking.
79200 square yards
240 square yards
88 square yards
2640 square yards
The area of park in terms of scale drawing is 79200 square yards with scale drawing of a rectangular park is 8 inches wide and 11 inches long.
What is area of rectangle?Area of rectangle=Length * width.
Given:
scale length of rectangular park = 11 inch =
scale width of rectangular park = 8 inch
scale length / actual length of park = scale width/ actual width of park
11/330= 8/ actual width of park
1/30 = 8/ actual width of park
actual width of park = 240
So,
Area = length* width
=330*240
= 79200 square yards
Hence, the area of the actual parking is 79200 square yards.
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Translate into a variable expression. Then simplify.
1. a number n minus the difference between the number and seven
2. a number n increased by two-thirds of the number
3.twelve more than the square of a number n added to the difference between the number and fifteen
4.the sum of two times a number n and fourteen added to the product of fourteen and the number
5.The sum of two numbers is twenty-six. Using x to represent the smaller of the two numbers, translate "the difference between two more than the larger number and twice the smaller number" into a variable expression. Then simplify.
6.A financial advisor has invested $14,000 in two accounts. If one account contains x dollars, express the amount in the second account in terms of x.
7. A 9-foot board is cut into two pieces of different lengths. Express the length of the longer piece in terms of the length L of the shorter piece.
A certain population demographic may be defined as someone older than 26, but les than 30 years of age. Express this statement using inequalities.
Answer:
26 < d < 30
Step-by-step explanation:
D is greater than 26 but less than 30.
Someone older than 26, but less than 30 years of age will be written as 26 < x < 30.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
A certain population demographic may be defined as someone older than 26, but less than 30 years of age.
Let 'x' be the age of someone.
If the age of someone is greater than 26, then the inequality is written as,
26 < x ...1
If the age of someone is smaller than 30, then the inequality is written as,
x < 30 ...2
Combine both inequalities, then we have
26 < x < 30
Someone older than 26, but less than 30 years of age will be written as 26 < x < 30.
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Please help.. I don't understand
Step-by-step explanation:
a || b means that a is parallel with b.
a ≅ b means a is congruent with b. that mags that if you orient a and b alike and then put them on top of each other, there is nothing that stands out. they perfectly cover each other.
for angles alone this simply means they have the same size.
A true.
when a line (like in this case r) intersects parallel lines (like in this case p and q), then the angles at the intersections must be the same for p and q.
after all, parallel means that both lines emulate each other's behavior exactly - except for the physical location itself.
B in general is not true. it would only be true, if also r || s.
C true. for the same reasons as A.
D true. for the same reasons as A.
During final 172 students visited the math lab in total .if 4 out of were male is the percentage of female students who visited the math lab ? ( Round to the nearest tenant)
110% percent of female students visited the math lab.
By dividing the value by the entire value and multiplying the result by 100, one may determine the percentage. The percentage calculation formula is (value/total value)100%.
Comparing two amounts while rebasing the second amount to 100 is the simplest way to use percentages.
During the final exam, the number of students that visited the math lab is 172 in total.
Of the total number of students, 4 out of 11 were male.
Therefore, the total number of females that visited the math lab is:
no. of females = 11 - 4 = 7.
Therefore, the percentage of female students who visited the math lab is :
[tex]F=\frac{7}{11} \times 172\\\\F=109.4\\F=110[/tex]
Therefore, the percentage of female students who visited the math lab is 110%.
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Alex invests $1,000 in his company's stock. After a year, the value of Alex's stock has increased to $1,250. What rate of return has Alex received?
Alex has received a rate of return of 0.25, or 25%, on his investment.
What is Algebraic expression ?
Algebraic expression can be defined as combination of variables and constants.
To calculate the rate of return that Alex has received, we can use the formula:
rate of return = (final value - initial value) / initial value
where the final value is the value of the investment after the period of time in question, and the initial value is the value of the investment at the beginning of that period.
In this case, the final value is $1,250 and the initial value is $1,000, so we have:
rate of return = (1250 - 1000) / 1000 = 0.25
Therefore, Alex has received a rate of return of 0.25, or 25%, on his investment.
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6 1/2 yards of ribbon cost $9.75. How much does it cost for 20 yards of ribbon?
Cost of 20 yards of ribbon is $13.32.
Given,
The cost of 6 ½ yards of ribbon = $9.75
We have to find the cost of 20 yards of ribbon.
First of all we have to find the cost of 1 yard of ribbon:
Cost of 1 yard of ribbon = ( 6 ½ yards of ribbon) / (cost of 6 ½ yards of ribbon)
Cost of 1 yard of ribbon = 6 ½ / 9.75 = 6.5 / 9.75 = 0.66666
That is cost of 1 yard of ribbon is $0.666 approximately.
Now, we have to find the cost of 20 yards of ribbon:
Cost of 20 yards of ribbon = (cost of 1 yard of ribbon) x 20
Cost of 20 yards of ribbon = 0.666 x 20 = 13.32
That is cost of 20 yards of ribbon is $13.32.
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HELP ME OUT PLEASE!!!!!
What is the rate of change of y with respect to x for this function? Record your answer in the boxes below.
The rate of change of y with respect to x for given function is -0.2
We know that, the slope of a function is nothing but the rate of change of y with respect to x of a function.
In this question, we have been given a linear function passing through points (-3, 3.6) and (5, 2)
We need to find the slope of the line passing through points (-3, 3.6) and (5, 2)
Let m be the slope.
By using the formula of the slope,
m = (2 - 3.6) / (5 - (-3))
m = -1.6 / 8
m = -0.2
Therefore, the rate of change of y with respect to x for given function is -0.2
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help please get it right and explain how to calculate it for brainliest
Darryl intended to save $150 a month for the next 18 months to purchase a boat. However, after 10 months he has only managed to save $1,200. How much will Darryl need to save now in order to accomplish his original goal?
Answer:
150x8=1,200 so that much more
Step-by-step explanation:
Darryl will need to save an additional $187.50 per month for the next 8 months in order to accomplish his original goal of saving $150 per month for 18 months.
What is an expression?In mathematics, an expression is a combination of numbers, variables, and operators that represents a value or a quantity.
Expressions can be simple or complex, and they can be used to perform mathematical operations, make comparisons, or evaluate functions.
An expression can contain any combination of numbers, variables, and operators, such as addition, subtraction, multiplication, division, and exponentiation.
For example, 3 + 5, 2x - 7, and (4a + 2b) / (3c - d) are all examples of expressions.
We have,
Darryl intended to save $150 a month for 18 months, which would have given him a total savings of:
$150/month x 18 months
= $2,700
However, after 10 months, he has only managed to save $1,200.
This means he fell short of his goal by:
$2,700 - $1,200
= $1,500
To accomplish his original goal, he will need to save an additional $1,500. Since he has 8 months left to save, he will need to save:
$1,500 / 8 months
= $187.50 per month
Therefore,
Darryl will need to save an additional $187.50 per month for the next 8 months in order to accomplish his original goal of saving $150 per month for 18 months.
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Consider a particular baseball player at bat. The height of the ball at time t can be modeled by h=-16t^2+v t+h. Here, v is the initial upward velocity of the ball, and h is the height at which the ball is hit. if a ball is 4 feet off the ground when it is hit with a negligible upward velocity close to 0 feet per second, when will the ball hit the ground?
Solve for [tex]t[/tex] when [tex]h=0[/tex], given [tex]v_0=0[/tex] and [tex]h_0 = 4[/tex].
[tex]0 = -16t^2 + 4 \implies 16t^2 = 4 \implies t^2 = \dfrac14 \implies t = \dfrac12[/tex]
so it will take half a second for the ball to hit the ground.
a father is 4 times as old as his son. in 20 years the father will be twice as old as his son. find the present age of each.
Answer:
2(s+20)
Step-by-step explanation:
hope this helps
Answer: son is 10 years old and father is 40 years old
Step-by-step explanation:
Let the present age of son is x years
Then the present age of father is 4x years
4x+20=2(x+20)
4x+20=2x+40
4x+20-20=2x+40-20
4x=2x+20
4x-2x=2x+20-2x
2x=20
Divide both parts of the equation by 2:
x=10 years
4x=4(10)
4x=40 years
PLEASE ANSWER QUICKLY!
Multiply the number 4 by . Add 6 to the product. Divide this sum by 2. Subtract 3 from the quotient.
1st number is 1 the result is
The original number is represented by x So, the result is the multiplier of 2.
What are the Quotients?Quotients are the number that is obtained by dividing one number by another number.
Dividend ÷ Divisor = Quotients
It is given that Multiply the number 4. Add 6 to the product. Divide this sum by 2. Subtract 3 from the quotient.
Let x = original number
(4x + 6)/2 - 2
= (4x /2 + 6/2) - 2
= 2x + 3 -2
= 2x+1
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The complete question is;
Write a conjecture that relates the result of the process to the original number selected. Represent the original number as x. What is the result?
On a quiz, a student factored 25x² - 15x + 2 by grouping as follows.
25x² - 15x + 2 = 25x²5x - 10x + 2
= 5x(5x − 1)− 2(5x − 1) This is the student's answer.
He thought his answer was correct since it checked by multiplying. What went wrong? What is the correct factored form?
Select the correct choice below and fill in the answer box(es) to complete your choice.
A. The student did not factor the groups correctly. The correct factored form is □
B. The expression is the sum of two terms. He needs to factor out the common factor. The correct factored form is □
C. The pair of integers to write the middle term is not correct. The correct factored form is □
D. The sign between the two terms is not correct. The correct factored form is □
The correct answer regarding the factoring of the expression 25x² - 15x + 2 is:
B. The expression is the sum of two terms. He needs to factor out the common factor. The correct factored form is (5x - 1)(5x - 2).
How to factor an expression?An expression is factored placing the common terms in evidence, and then simplifying the entire expression according to these terms.
For this problem, the expression is:
25x² - 15x + 2.
After the first step, he found the following factorization:
5x(5x - 1) - 2(5x - 1).
However, this procedure is incomplete, as (5x - 1) is common to both terms of the subtraction. Thus the completely simplified expression is:
(5x - 1)(5x - 2).
As:
The correct option is:
B. The expression is the sum of two terms. He needs to factor out the common factor. The correct factored form is (5x - 1)(5x - 2).
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#10
Mr. Oliveros buys tickets to take theater
students to a play. Mr. Oliveros spends $45.00
in all. He spends $10 for his ticket and spends
the rest on student tickets. Each student ticket
is $2.50. How many student tickets does Mr.
Oliveros buy?
Answer:
14.
Step-by-step explanation:
1) if mr. Oliveros spent 10$ for his ticket, then the rest sum of his money is 45-10=35$;
2) according to the condition mr. Oliveros spends 35$ for unknown number tickets for students, where 2.5$ for each student. Using this conditiion it is possible to calculate the number of student tickets:
35/2.5=14.
Find a in degrees.
Round to the nearest hundredth.
[tex]\large \bf \implies{53.1 \degree}[/tex]
Step-by-step explanation:[tex] \bf \longrightarrow \: sin \: α = \frac{8}{10} = 0.8 \\ \\\bf \longrightarrow \: α = arc \: sin (0.8)= 53.1°[/tex]
Find the midpoint of points A(-5, 3) and B(5, -1) graphically.
Plot the line segment AB by clicking twice on the graph.
s
Start over
-109-8 7 6 543
2 4
y
S
3 4
5
6
7
8
9 10
Mid point of the points A(-5, 3) and B(5, -1) is point C(0,1)
Mid point is a point that lies at the center of any measured distanced.
The points are written in the coordinate forms having first term as 'x' coordinate value called as abscissa and second term as 'y' coordinate value called as ordinate.
A = (x₁ , y₁) = (-5 , 3)
B = (x₂ , y₂) = (5 , -1)
Mid point formula [tex]( \frac{x1 +x2}{2} , \frac{y1+y2}{2} )[/tex], is used to find the midpoint of a line.
Mid point of the points A(-5, 3) and B(5, -1) ,
x₁ = -5
x₂ = 5
y₁ = 3
y₂ = -1
So, mid point C = [tex]( \frac{(-5)+5}{2} , \frac{3+(-1)}{2} )[/tex]
C = [tex]( \frac{0}{2} , \frac{2}{2} )[/tex]
C = (0 , 1) = (x , y)
The mid point of the points A(-5, 3) and B(5, -1) is point C(0 , -1)
The plotting of line segment is shown in the picture.
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A circle has a radius of 7 inches. Find the arc length intercepted by a central angle of 280˚.
[tex]\textit{arc's length}\\\\ s = \cfrac{\theta \pi r}{180} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=7\\ \theta =280 \end{cases}\implies s=\cfrac{(280)\pi (7)}{180}\implies s=\cfrac{98\pi }{9}\implies s\approx 34.21[/tex]
power series interval of convergence (x+3)^n/(n) n is equal to 1
Interval of convergence of the power series [tex]\frac{(x+3)^{n} }{n}[/tex] ; n = 1 is -5 < x < -1.
A power series is a special type of infinite series representing a mathematical function in the form of an infinite series that either converges or diverges.
[tex]\lim_{n \to \infty} |\frac{an+1}{an}|[/tex] is the formula used to calculate the intervals for convergence or divergenceThe series is aₙ = [tex]\frac{(x+3)^{n} }{n}[/tex]
To generate aₙ₊₁ term replace 'n' with 'n + 1'
aₙ₊₁ = [tex]\frac{(x+3)^{n+1} }{n+1}[/tex]
Now plugging aₙ and aₙ₊₁ in the formula L = [tex]\lim_{n \to \infty} |\frac{an+1}{an}|[/tex]
L = [tex]\lim_{n \to \infty} |\frac{\frac{(x+3)^{n+1} }{n+1} }{\frac{(x+3)^{n} }{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3)^{n+1} }{n+1} }/{\frac{(x+3)^{n} }{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3)^{n+1} }{n+1} }*{\frac{n }{(x+3)^{n} }|[/tex]
L = [tex]\lim_{n \to \infty} |{\frac{(x+3) }{n+1} }*{n}|[/tex]
L = [tex](x+3)\lim_{n \to \infty} |{\frac{n}{n+1} }|[/tex]
L = [tex](x+3)\lim_{n \to \infty} |{\frac{n*(\frac{1}{n}) }{(n+1)*(\frac{1}{n}) } }|[/tex]
Since n = 1
L = [tex](x+3)\lim_{n \to \infty} |\frac{1}{1+1} |[/tex]
L = [tex](x+3)\lim_{n \to \infty} |\frac{1}{2} |[/tex]
L = [tex]\frac{1}{2} * |x+3|[/tex]
The ratio tells us that if L < 1 then the series will converge
[tex]\frac{1}{2}*(x+3) < 1[/tex]
[tex](x+3) < 2[/tex]
The interval of convergence will be
-2 < (x + 3) < 2
-5 < x < -1
The interval of convergence for the power series [tex]\frac{(x+3)^{n} }{n}[/tex] is -5 < x < -1
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Please help with this !
Answer:
1. 26, cuz 17+9=26
2. 50, cuz 60-10=50
3. 19, cuz 33-14=19
Hope these will help you as you can't just ask for answers.
rite g(x) = 4x2 + 88x in vertex form
The function written in vertex form is
[tex]g(x) =4x^2+88x =4(x+ 11)^2 - 484[/tex]
This is further explained below.
What is the function written in vertex form?Generally, the equation for the function is mathematically given as
g(x) = 4x2 + 88x
Therefore,
g(x) = a(x +11)2 + k
[tex](x +11)x^{2} as\ x^2 + 22x +121[/tex]
[tex]g(x) = a(x^2 +22x +121) + k\\\\g(x) = ax^2+ 22ax +121a + k[/tex]
Equate eq(a) with eq(b) We obtain,
[tex]4x^2 + 88x = ax^2 + 22ax +121a + k[/tex]
Examine the x coefficients on both sides of the equation.
a=4 and 22a= 88 ; 121a + k = 0
121(4) = -k
k = -484
[tex]g(x) =4x^2+88x =4(x+ 11)^2 - 484[/tex]
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CQ
Write g(x) = 4x2 + 88x in vertex form. The function written in vertex form is g(x) = ___ (x +11)² +____.
البلاغcdddffffdsaawefbjjhhg
Answer:
x=37
Step-by-step explanation:
If you stare at the picture long enough you can tell that you have six straight angles, which add up to [tex]180\°\times 6 = 1080\°[/tex]. You now need to take away the internal angles, that add up to [tex]180\° \times 6-360\° = 720\°[/tex]*
What you have left is two expression of the same quantity - the sum of the external angles. In one case is [tex]360\°[/tex] (the difference between the two values) and in the other is the sum of the various expressions containing x.[tex]2x +(x+10)+(x+18)+3x+(x-1)+x = 360\\9x = 360 - 27 \rightarrow 9x = 333\rightarrow x=37[/tex]
*Pick any point inside the polygon, and join it to the corners. You will create as many triangles as you have sides - in our case 6. Sum of angles will be 180 times the number of sides, minus a whole round angle - the one in the center.
evaluate this please
Answer:
27(-⁴)
³
= 3³(-⁴/³)
= 3(-⁴)
= 1
81
a
Convert 5.764764764 ... to a rational expression in the form of
b
where b = 0.
The correct answer will be option b
let x= 5.764764 (1)
multiply both the sides by 1000
1000x = 5764.764 (2)
now substract equation one from equation (2)
999x = 5764
x = 5764/999
In mathematics, a rational number is a number that can be expressed as the quotient or fraction
p
/
q
of two integers, a numerator p and a non-zero denominator q.[1] For example,
−3
/
7
is a rational number, as is every integer (e.g. 5 =
5
/
1
). The set of all rational numbers, also referred to as "the rationals",[2]
A rational number is a real number. The real numbers that are rational are those whose decimal expansion either terminates after a finite number of digits (example:
3
/
4
= 0.75), or eventually begins to repeat the same finite sequence of digits over and over (example:
9
/
44
= 0.20454545...).[6] This statement is true not only in base 10, but also in every other integer base, such as the binary and hexadecimal ones
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Evaluate the expression the find the missing values in the table.
Option 1: 85, 60, 32
Option 2: 77, 68, 40
Option 3: 85, 68, 40
Option 4: 77, 60 32,
After the evaluation of the given expression n² + 4, the correct option is (3) 85, 68, and 40.
What are expressions?A group of numbers or variables combined with the operations +, -,×, ÷ or form an expression. Algebraic expressions with variables, numbers, and mathematical operators, as opposed to arithmetic expressions that only contain numbers and mathematical operators.So, n² + 4:
n² + 4 when n = 9: 9²+ 4 ⇒ 81 + 4 = 85n² + 4 when n = 8: 8² + 4 ⇒ 64 + 4 = 68n² + 4 when n = 6: 6² + 4 ⇒ 36 + 4 = 40Therefore, after the evaluation of the given expression, the correct option is (3) 85, 68, and 40.
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endpoint of the
segment LN if
N(-8,2) and the
midpoint is
M(2,-4).
The final endpoint values are: (12,-6)
What is the midpoint?
The midway point of a line or segment is referred to as the midpoint. It creates an evenly spaced division in the line. In essence, it divides the lines into two.
According to the question, the coordinates of a line LN is given as: N (-8,2) and Midpoint M M(2,-4).
To calculate the midpoint, use the standard midpoint formula which is represented as below:
Midpoint =[tex]\frac{x1 + x2 }{2}[/tex] and [tex]\frac{y1 + y2 }{2}[/tex]
From the given data, the values are:
X1 = -8; Y1 = 2; X = 2; Y = -4
Therefore, the calculated midpoint is:
2 = -8 + [tex]\frac{x2}{2}[/tex] = 12
4 = 2 + [tex]\frac{y2}{2}[/tex] = -6
Hence, the final endpoint values are (12,-6)
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esse rode his bike for 2 hours at a constant rate. During the first 1.5 hours, he rode 12 miles. How many miles did Jesse ride his bike during the last half hour? (Enter an exact number.)
mi
Answer:
3 miles
Step-by-step explanation:
There is a 5 by 5 square in the top right square is your home in the bottom left square is your school there are >100 ways and you can’t go through corners and the way Can only be 10 blocks no more or less
Answer:
there is a 5 by 5 square
Step-by-step explanation:
Answer:
In plane Euclidean geometry, a rhombus is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equalStep-by-step explanation: