Final answer:
△RST is a right triangle because the slope of line RS is 3/2 and the slope of line RT is 0, indicating that RS is perpendicular to RT.
Explanation:
To determine whether △RST is a right triangle, we can calculate the slopes of the sides to check for perpendicularity. A right triangle will have one pair of sides that are perpendicular to each other, meaning their slopes will be negative reciprocals.
The slope of line RS is calculated using the coordinates R(-3,1) and S(-1,4) as:
Slope of RS = (4 - 1) / (-1 + 3) = 3 / 2
The slope of line RT is calculated using the coordinates R(-3,1) and T(3,1) as:
Slope of RT = (1 - 1) / (3 + 3) = 0 / 6 = 0
Since the slope of RS is a non-zero finite number and the slope of RT is zero, they are perpendicular to each other because the slope of a line perpendicular to a horizontal line (slope of 0) is undefined, which is the negative reciprocal of 0.
Therefore, the correct statement is:
△RST is a right triangle because RS‾ is perpendicular to RT‾.
Final answer:
Upon calculating the slopes of the sides of △RST, it is concluded that none of the sides are perpendicular to one another, which means that △RST is not a right triangle.
Explanation:
To determine if △RST is a right triangle, we need to calculate the slopes of the sides to check for perpendicularity because perpendicular lines have slopes that are negative reciprocals of each other. Let's calculate the slopes of line segments RS, ST, and RT.
Slope of RS is given by (4 - 1)/(-1 + 3) = 3/2.
Slope of ST is (4 - 1)/(-1 - 3) = 3/-4 = -3/4.
Slope of RT is (1 - 1)/(3 + 3) = 0/6 = 0.
Since the slope of RT is 0, it means that RT is a horizontal line. The slope of RS is 3/2, and the slope of ST is -3/4. These slopes are not negative reciprocals of each other. Hence, none of the lines are perpendicular to each other, and we can conclude that △RST is not a right triangle because no two of its sides are perpendicular.
Euler's formula, V – E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedron. How many faces does a polyhedron with 4 vertices and 6 edges have?
7
4
6
5
Please Help!
A polyhedron with 4 vertices and 6 edges would have 4 faces, according to Euler's formula.
Explanation:This question involves the understanding of Euler's formula applied on polygons. Euler's formula, as given in the question is V – E + F = 2, where V is the number of vertices, E is the number of edges, and F is the number of faces. To answer your question, we need to solve the formula for F. Let's replace V and E with the given numbers, which are 4 for vertices and 6 for edges.
So the formula becomes 4 – 6 + F = 2. Simplifying this, we get -2 + F = 2. Solving for F, we find F = 1 + 2, which means F = 4. So, a polyhedron with 4 vertices and 6 edges would have 4 faces.
Learn more about Euler's Formula here:https://brainly.com/question/34369062
#SPJ2
Which of the following are NOT sufficient to prove that a quadrilateral is a parallelogram? I. Two pairs of opposite angles congruent. II. A pair of adjacent angles are supplementary. III. Both pairs of opposite sides are congruent. IV. A pair of opposite angles congruent and a pair of opposite sides congruent. V. Both pairs of opposite sides are parallel. VI. A pair of opposite sides parallel and the other pair of opposite sides congruent. VII. One pair of opposite sides are both parallel and congruent. VIII. The diagonals bisect each other. A. IV and VII only B. II, VI, and VII only C. II and VI only D. II, IV, and VII only
A pair of adjacent angles being supplementary, a pair of opposite angles congruent and a pair of opposite sides congruent, and one pair of opposite sides being both parallel and congruent are not sufficient conditions on their own to prove that a quadrilateral is a parallelogram.
Among the given statements concerning the characteristics that are sufficient to prove a quadrilateral is a parallelogram, the following are NOT sufficient on their own:
A pair of adjacent angles are supplementary (statement II).
A pair of opposite angles congruent and a pair of opposite sides congruent (statement IV).
One pair of opposite sides are both parallel and congruent (statement VII).
While having a pair of adjacent angles that are supplementary is common in parallelograms, it alone does not guarantee that a quadrilateral is a parallelogram, as many quadrilateral types can have supplementary adjacent angles. Similarly, having just one pair of opposite angles and one pair of opposite sides congruent doesn't necessarily make a quadrilateral a parallelogram, as these characteristics could describe a kite or other quadrilaterals as well. The condition of one pair of opposite sides being both parallel and congruent, although a property of parallelograms, is not by itself a conclusive proof, as there may need to be additional information to rule out other shapes like rectangles.
Correct Answer: B. II, VI, and VII only
Help this is urgent due tomorrow... The lowest price for a play is $15 and the highest ticket price is $45. Write and graph a compound inequality that describes the price of all tickets for the play.
The expression V = 2x3 + 6x2 can be used to find the volume of the trapezoidal prism below. If x = 12 cm, what is the volume of the prism?
The volume of the prism is 4320 cubic units
The expression for the volume is given as:
V = 2x^3 + 6x^2
When x = 12, the expression becomes
V = 2 * 12 ^3 + 6 * 12^2
Evaluate the exponent
V = 2 * 1728 + 6 * 144
Evaluate the products
V = 3456 + 864
Evaluate the sum
V = 4320
Hence, the volume of the prism is 4320 cubic units
Read more about volumes at:
https://brainly.com/question/1972490
How long does it take for a deposit of $900 to double at 2% compounded continuously?
What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?
Answer: The required center of the given circle is 2 units.
Step-by-step explanation: We are given to find the radius of a circle with the following equation:
[tex]x^2+y^2+8x-6y+21=0~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
The standard equation of a CIRCLE with radius 'r' units and center at the point (h, k) is given by
[tex](x-h)^2+(y-k)^2=r^2.[/tex]
From equation (i), we have
[tex]x^2+y^2+8x-6y+21=0\\\\\Rightarrow (x^2+8x+16)+(y^2-6y+9)-16-9+21=0\\\\\Rightarrow (x^2+2\times x\times 4+4^2)+(y^2-2\times x\times 3+3^2)-4=0\\\\\Rightarrow (x+4)^2+(y-3)^2=4\\\\\Rightarrow (x-(-4))^2+(y-3)^2=2^2.[/tex]
Comparing the above equation with the standard equation (i), we get
radius, r = 2 units and center, (h, k) = (-4, 3).
Thus, the required center of the given circle is 2 units.
bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your answer as a decimal
You are ordering pizzas for a birthday party and getting them delivered to your house. you order 12 pepperoni pizzas, 8 cheese pizzas, and 4 hawaiian pizzas. there is a delivery fee of $5.50 if your total comes to 184.54. how much was each pizza
The answer would be $7.46. If you subtract the delivery fee then divide by how much pizzas there are you would find the amount per each pizza.
What is the equation of a circle with center (-3, -1) that contains the point (1, 2)?
Answer:
(x + 3)^2 + (y + 1^)2 = 25
Step-by-step explanation:
The distance formula gives the length of the radius:
r = √(-3-1)^2 + (- 1-2)^2 = √25 = 5
Substituting h = -3, k = -1, and r = 5 into the standard form (x - h)2 + (y - k)2 = r2, you get (x + 3)2 + (y + 1)2 = 52 = 25.
edmentum :)
For what value of b does
Find the equation of a line parallel to y - 5x = 10 that passes through the point (3, 10). (answer in slope-intercept form)
The equation of the required line is [tex]y=5x-5[/tex].
Given:
The eqation of paralle line is [tex]y-5x=10[/tex]. The required line passes through the point [tex](3,10)[/tex].To find:
The equation of the required line in slope-intercept form.
Explanation:
The given equation can be rewritten as:
[tex]y=5x+10[/tex]
On comparing this equation with [tex]y=mx+b[/tex], we get
[tex]m=5[/tex]
Slopes of parallel lines are always equal.
The slope of reqired line is [tex]m=5[/tex] and it passing through the point [tex](3,10)[/tex]. Using the point slope form, the equation of the line is:
[tex]y-y_1=m(x-x_1)[/tex]
[tex]y-10=5(x-3)[/tex]
[tex]y=5x-15+10[/tex]
[tex]y=5x-5[/tex]
Therefore, the equation of the required line is [tex]y=5x-5[/tex].
Learn more:
https://brainly.com/question/18595814
Translate the variable expression into a word phase
2 x (3 - x)
The final balance in an account that has a monthly fee and automatic monthly deposits is given by the expression. The initial account balance is $1200.
150x−4.99x+1200
What does the expression 150x−4.99x represent?
a.the final balance
b.the monthly balance change
c.the initial balance
d.the monthly fee total
i got b
Above answer is correct, I took the test.
answer: the monthly balance change
I need help on how to figure out this question! A track coach made a two way table to show his runners gender and running category. Male: Sprints- 16 Middle distance- 11 Long distance- 9 Female: Sprints- 12 Middle distance- 14 Long distance- 5 To the nearest hundredth, what is the probability that a randomly chosen female runs sprints? This obviously says that order doesn't matter as they mention "randomly chosen". I am just having trouble figuring out how to solve this.
Answer: Approx 0.39 will be the required probability.
Step-by-step explanation:
Here,Number of,
Male: Sprints=16, Middle distance=11, Long distance= 9
So, total males=36
And, Female: Sprints= 12, Middle distance=14, Long distance=5
So, total females=31
Thus, If one female randomly chosen,
Then, The probability that female runs sprint= Number of females who run sprint / total number of females
⇒ The probability that female runs sprint=12/31= 0.38709677419≈0.39
Kate has some dimes and quarters. if she has 1919 coins worth a total of $2.95, how many of each type of coin does she have?
What are the roots of the polynomial equation? 0= x^2 +18x+45
Answer:
-15 and -3
Step-by-step explanation:
Question 3 e and f are sets of real numbers defined as follows.
Which is true of a melting point and a boiling point?
A. The melting point is a higher temperature than the boiling point.
B. The melting point is a lower temperature than the boiling point.
C. The melting point and the boiling point depend on the size of the sample.
Answer:
B - The melting point is a lower temperature than the boiling point.
Step-by-step explanation:
Melting point is the temperature at which any given solid will melt. The state of the solid changes from solid to liquid.
Boiling point is the temperature at which a given liquid boils and changes to vapor state. Like water starts to boil at 100 degrees Celsius.
The boiling point of a substance cannot be lower than its melting point.
So, the answer here is - The melting point is a lower temperature than the boiling point.
Michael, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Michael also gives a 5% discount if the entire amount is paid up front. A 2 column table with Type of Editing and Cost per page as the column headings. Express Proofreading costs 2.20 dollars, Basic Proofreading 2.80 dollars, Extended Proofreading 3.90 dollars, and Deep Editing 12 dollars Maria has a 25-page manuscript. The equation below shows the relationship between the total cost of editing 25 pages, T, and the cost per page, c, if she gets the 5% discount: 25c − 0.05(25c) = T Using the equation, what is the best quality of editing that Maria can get done for a maximum of $66.50?
a googol is a large number that is the digit one followed by one hundred zeros.if you multiply a googol by 100, how many zeros will that product have
Write an equation for the line parallel to line AB that contains point C (0,3)
AB: y=-2x+1
In a couple of sentences and your own words describe how to re-write an expression that's in radical form into an expression with rational exponents?
X= -75/y; X=6
what's the answer & how do u solve this?
Tracey paid $170 for an item that was originally priced at $580. What percent of the original price did Tracey pay? Round your answer to two decimal places.
The length of a rectangle is 55 meters longer than the width. if the area is 2929 square meters, find the rectangle's dimensions. round to the nearest tenth of a meter.
A bread recipe calls for 1/3 cup of white flour and 2 3/4 cups of whole wheat flour. What is the total amount of flour needed?
Kevin has a box of cereal that contains 10 1/2 cups of cereal. A serving size of the cereal is 3/4 cup. How many servings are in the box of cereal? Enter your answer in the box
The number of servings in the box of cereal is:
14
Step-by-step explanation:It is given that:
Kevin has a box of cereal that contains 10 1/2 cups of cereal.
i.e. the number of cups of cereal= 21/2 cups
Also,
A serving size of the cereal is 3/4 cup.
This means that:
The number of servings in the box are:
Ratio of number of cups of cereal in box to the number of cups of cereal in one serving
which is calculated as:
[tex]\text{Number of servings}=\dfrac{\dfrac{21}{2}}{\dfrac{3}{4}}\\\\\\\text{Number of servings}=\dfrac{21\times 4}{3\times 2}\\\\\\\text{Number of servings}=14[/tex]
what is 0.81% written as a decimal
The volume of a rectangular prism is given by the formula V = lwh, where l is the length of the prism, w is the width, and h is the height. Suppose a box in the shape of a rectangular prism has length (2a + 11), width (5a – 12), and height (a + 6). Which expression represents the volume of the box?
answer choices in pics
Answer:
[tex]V = (10a^3+91a^2+54a-792)[/tex]
Step-by-step explanation:
We have
[tex]V = lwh[/tex] (I), and
[tex]l=2a+11[/tex] (II)
[tex]w=5a-12[/tex] (III)
[tex]h=a+6[/tex] (IV)
We substitute the expression (II),(III) and (IV) in (I), that is
V= (2a+11)(5a-12)(a+6), solve the first one terms
[tex]V = (10a^2-24a+55a-132)(a+6)[/tex]
[tex]V = (10a^2+31a-132)(a+6)[/tex]
[tex]V = (10a^3+31a^2-132a+60a^2+186a-792)[/tex], simplifying
[tex]V = (10a^3+91a^2+54a-792)[/tex]
Select all that apply. If p is a statement, which of the statements is the negation of p. not p. and p. p is false. or p. p is true.