If 3 appears on the first die, then the sum of the numbers on the two dice can be 8 only if 5 appears on the second die. The probability of rolling a 5 on a single die is 1/6, so the probability of rolling a 3 and a 5 on two dice is 1/6 * 1/6 = 1/36. This means that the probability of rolling a sum of 8 when 3 appears on the first die is 1/36.
Question 8 options:
Given the coordinates below, determine if ΔFGH and ΔJKL are congruent. If they are, give the reason, if they aren't choose "not congruent".
F(-5, 10), G(-2, 2), H(-9, -7), J(0, -5), K(9, 2), L(-8, -2)
FG =
GH =
FH =
JK =
KL =
JL =
Are the triangles congruent?
In the box enter one of the following:
SSS
SAS
Not Congruent
Hence, the three side length of two triangles are same so they are congurent.
What is the congurency?
Two shapes are congruent if they are the same (shape and size)- in other words, if the lengths of the sides and the angles are the same.
It is often useful to know when two triangles are congruent.
Here given coordinates of the triangle [tex]FGH[/tex] and triangle [tex]JKL[/tex] are
[tex]F(-5, 10), G(-2, 2), H(-9, -7), J(0, -5), K(9, 2), L(-8, -2)[/tex].
So, the distance formula is
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Distance between [tex]FG[/tex] is
[tex]d=\sqrt{(-2-(-5))^2+(2-10)^2}\\\\d=\sqrt{(-2+5)^2+(2-10)^2}\\\\d=\sqrt{(3)^2+(-8)^2}\\\\d=\sqrt{9+64}\\\\d=\sqrt{73}[/tex]
Distance between [tex]GH[/tex] is
[tex]d=\sqrt{(-9-(-2))^2+(10-(-7))^2}\\\\d=\sqrt{(-9+2)^2+(10+7)^2}\\\\d=\sqrt{(-7)^2+(-9)^2}\\\\d=\sqrt{49+81}\\\\d=\sqrt{130}[/tex]
Distance between [tex]HF[/tex] is
[tex]d=\sqrt{(-5-(-9))^2+(10-(-7))^2}\\\\d=\sqrt{(-5+9)^2+(10+7)^2}\\\\d=\sqrt{(4)^2+(17)^2}\\\\d=\sqrt{16+289}\\\\d=\sqrt{305}[/tex]
Distance between [tex]JK[/tex] is
[tex]d=\sqrt{(9-0)^2+(2-(-5))^2}\\\\d=\sqrt{(9)^2+(2+5)^2}\\\\d=\sqrt{(9)^2+(7)^2}\\\\d=\sqrt{81+49}\\\\d=\sqrt{130}[/tex]
Distance between [tex]KL[/tex] is
[tex]d=\sqrt{(-8-9)^2+(-2-2)^2}\\\\d=\sqrt{(-17)^2+(-4)^2}\\\\d=\sqrt{289+16}\\\\d=\sqrt{305}[/tex]
Distance between [tex]LJ[/tex] is
[tex]d=\sqrt{(0-(-8))^2+(-5-(-2))^2}\\\\d=\sqrt{(8)^2+(-5+2)^2}\\\\d=\sqrt{(8)^2+(-3)^2}\\\\d=\sqrt{64+9}\\\\d=\sqrt{73}[/tex]
Since, [tex]FG[/tex]≅[tex]LJ-GH[/tex]≅[tex]JK-HF[/tex]≅[tex]KL[/tex]
Hence, the three side length of two triangles are same so they are congurent.
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Given lines l, m, and n are parallel and cut by two transversal lines, find the value of x. Round your answer to the nearest tenth if necessary.
when lines l, m, and n are intersected by two transversal lines and are parallel, the value of x = 12.5 is obtained.
what is transversal lines ?A transversal in geometry is a line that, at two different places, traverses two lines in the same plane. If two or more additional lines in the Euclidean plane are parallel, transversals can help determine this.
Parallel lines l, m, and n are present.
These parallel lines cross two transversal lines.
theorem of intercept
Intercept lengths between parallel lines are proportionate.
[tex]\frac{16}{x} = \frac{23}{18}[/tex]
x = (16 * 18) /23
x = 12.5
when lines l, m, and n are intersected by two transversal lines and are parallel, the value of x = 12.5 is obtained.
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What is the equation of a line perpendicular to y= 2z - 6 that passes through (5, 4)
Use the formula y = m x + b
Answer:
Step-by-step explanation:
balls
Kaya can ride her bike 3mi/h faster than Josh can ride his bike. If Kaya and Josh ride their bikes at the same time, Kaya will travel 60 miles and Josh will travel 12 miles less. How fast can Josh and Kaya ride their bikes?
On solving the given question, by the equation, A riding 48 mi at 8 mph takes 6 hours, which indeed is 3 hours longer .A riding 48 mi at 8 mph takes 6 hours, which indeed is 3 hours longer.
What is equation?An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated by the symbol "equal."
J can ride his bike 8 mph faster than A can ride. It takes A 3 hours longer than J to ride 48 miles. How fast can J ride?
Let r = rate that J rides, in miles per hour.
Then rate that A rides is (r – 8).
distance = rate * time
time = distance/rate
Time taken by J to ride 48 miles = 48/r.
Time taken by A to ride 48 miles = 48/(r – 8).
But A's time is 3 hours more than J's time.
48/(r – 8) = 3 + 48/r
Solve that for r.
48/(r – 8) = 3r/r + 48/r
48/(r – 8) = (3r + 48)/r
Multiply both sides by (r – 8)r.
[tex]48(r) = (3r + 48)(r - 8)\\ 48r = 3r2 -24r + 48r -384\\ 0 = 3r2 - 24r -384\\ 0 = r2 -8r - 128\\ 0 = (r -16)(r + 8)[/tex]
So r = 16 mph or r = –8 mph.
J riding 48 mi at 16 mph takes 3 hours.
A riding 48 mi at 8 mph takes 6 hours, which indeed is 3 hours longer.
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What percent of 200 is 104?
Answer:
52%
Step-by-step explanation:
What percent of 200 is 104?
104/200 = 0.52
0.52 = 52%
Suppose we select every fifth invoice in a file. What type of sampling is this? Multiple Choice Cluster Simple random Stratified random Systematic
This is an example of Systematic sampling.
Here we are drawing out every fifth invoice from the file available. Hence here we create an order where every fifth item is selected.
Hence this is called systematic sampling.
This is a type of probability sampling. In this method, samples are selected by the researcher at regular intervals.
This type of sampling is most suitable when we want to conduct a sampling method similar to simple random sampling but the list of population is unknown to us. However, this can also be used when the list of the same is available to us.
Another important condition is the order os the population, i.e ow it is spread must be random and not in some particular order or sample. Else the reult obtained will lose its credibility.
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A wooden box in the shape of a rectangle prism has a diagonal with a length of 25 centimeters, as shown.
What is the length of DH ?
___ centimeters
Using Pythagoras theorem the side length of DH is 9cm
Pythagoras's TheoremPythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named Perpendicular, Base and Hypotenuse. Here, the hypotenuse is the longest side, as it is opposite to the angle 90°.
To find the value of DH, we can use Pythagoras's theorem to find the length of HC
EC² = EH² + HC²
25² = 20² + HC²
HC² = 25² - 20²
HC² = 225
HC = √225
HC = 15
Using Pythagoras's theorem again, we can find DH
HC² = DC² + DH²
15² = 12² + DH²
DH = 9
The length of DH is 9cm
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Write an explicit
formula for an, the nth term of the sequence 2, 4, 8, ..
Answer:
formula: Tn=a+(n-1)d
Step-by-step explanation:
Tn=2+(n-1)2
Which of the following is factor of 4x² +3x−7?
Answer:
Step-by-step explanation:
BRO what FACTOR????????????????????????///////////////////////
An electrician needs to buy 7 1/2 feet of electrical wire. There are 1 1/2 feet of wire on each spool. How many spools of wire should the electrician buy?
Answer:
5
Step-by-step explanation:
[tex]\frac{7.5}{1.5}[/tex] = 5
simplify this please help
Answer:
48/7
Step-by-step explanation:
8/7/6
= 8 × 1/7/6
= 8× 6/7
48/7
How many boxes of markers should the teacher buy for a class of 30 students? Explain your answer.
Answer: 6 boxes of 5 markers in each box
Step-by-step explanation:
1. Consider the factors of 30
30: 1, 2, 3, 5, 6, 10, 15 and 30
2. pick any 2 that make 30
5*6=30
3. Therefore buying 6 boxes of 5 markers each should do the trick,
Hope this helps
Answer: 6 boxes of 5 markers in each box
Step-by-step explanation:
Let
ƒ(x) = (x + 2)² +3
g(x)=2x+6
: a rectangular plot of land adjacent to a river is to be divided into two equal plots as shown. if there are 3162 ft of fencing to enclose the plot, what dimensions will maximize the area?
Dimension of maximize area is, length = 1581 m and breadth = 790.5 m.
Given that a rectangular plot of land adjacent to a river is to be divided into two equal plots. And 3162 ft of fencing to enclose the plot.
Consider the length is L and breadth is B of the plot.
Therefore the perimeter = L + 2B = 3162
⇒ L = 3162 - 2B
We know that area is the product of length into breadth i.e,
Area = L × B
= (3162 - 2B) × B
Area = 3162B - 2B²
The maximum of the quadratic expression is
ax² + bx + c is at s = [tex]\frac{-b}{2a}[/tex] if a < 0.
Now we will calculate maximum point of the equation,
B = [tex]\frac{-3162}{2(-2)}[/tex]
B = 790.5
Now we will find the value of length,
L = 3162 - 2B
= 3162 - 2(790.5)
= 3162 - 1581
L = 1581
Hence the length of the rectangular plot is 1581 m and bredth is 790.5 m.
Therefore the maximize area = 1581 × 790.5 =124978
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65 × 589 × 653 - 65 + 36 = answers
We got the answer of the equation 65 X 589 X 653 -65 +36 = 25,000,076 by applying the BODMAS rule in the given equation.
By Applying the BODMAS rule we get the answer of this question. BODMAs rule says that firstly solve the bracket, them solve the off, then do division, after then go to multiplication, then do addition and lastly after the addition do subtraction.
The chain should be followed while solving the question. So in the given question we firstly do the multiplication i.e
65 X 589 X 653 which is equal to 25,000,105
After doing multiplication, we will move forward and do the addition i.e
25,000,105 + 36 which is equal to 25,000,141.
Lastly, we will do the subtraction after doing multiplication and addition i.e.
25,000,141 – 65 which is equal to 25,000,076.
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I need help.... I can't figure it out!!
The area of the given irregular figure is 143 square inches.
What is area of irregular figure?
We divide an irregular shape into its component common shapes before calculating its area. After that, we add the areas of each shape. For instance, if a square and a triangle make up an irregular polygon, the area of the polygon is equal to the sum of their areas.
We have to divide the given irregular figure into known shapes.
That is rectangle and square.
Rectangles with sides '7 in and 10 in' and '12 in and 4 in' and the square of side 5 in.
So, the area of irregular figure is,
Area = Area of rectangle + Area of rectangle + Area of square
= (7 x 10) + (12 x 4) + 5^2
= 70 + 48 + 25
Area = 143
Hence, the area of the given irregular figure is 143 square inches.
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what is the slope of the line whose equation is -3x 8y = -10.
Given a line with the equation -3x+8y=-10, its slope can be calculated using the slope intercept form of the line that is 3/8.
What is slope?A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x). A line's slope is how steeply it slopes from LEFT to RIGHT. The slope of a line is determined by dividing its rise, or vertical change, by its run, or horizontal change. No matter which two locations on the line you choose, the slope of a line is always constant (it never varies). The slope of a line in mathematics indicates how steep a line is. It is also referred to as the gradient. The "change in y" over the "change in x" of a line is referred to as the slope.
Here,
-3x+8y=-10
y=mx+c
where m=slope of line
8y=3x-10
y=3x/8-10/8
slope=3/8
The slope of given line whose equation is -3x+8y=-10 is 3/8 using slope intercept form of line.
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A dog is leashed to the corner of a house. How much running area does the dog have? Round your answer to the nearest square foot, if necessary.
The running area does the dog have is 943 square foot.
What is area of section of a circle?
A segment is essentially the area of a circle between the chord and the arc. A circle is a path that a point equidistant from a single point on the plane can follow; this point is known as the circle's center, and the distance between it and that point is known as the circle's radius. A segment is a section of a circle's interior. A sector is the region that a segment encloses and the angle that a segment occupies. By deducting the triangle produced inside the sector from the sector that contains the segment, one can calculate the area of a circular segment.
The area of a section that made by a circle is ∏ r² × (θ/360).
Given that the radius of the circle is 20 ft.
The angle between two consecutive side of a rectangle is 90⁰.
The angle that made the running area by dog = (360⁰ - 90⁰) = 270⁰.
The area is ∏× 20² × (270⁰/360⁰) = 942.85 square foot
The nearest square foot value of 942.85 square foot is 943 square foot.
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to go to a movie, a family with 2 adults and 4 children spends 64.00. a family containing 1 adult and 3 children spends 42.00. find the cost of an adult movie ticket and the cost of a child movie ticket
Answer: The cost of a ticket for an adult is $12 while for children it is $10.
Step-by-step explanation:
Let's assume that cost for adults is A while for children it is C
Now,
2 adults and 4 children spend $64.
2A + 4C = 64
1 adult and 3 children spend $42.
A + 3C = 42
Multiply by 2
2A + 6C = 84
By subtracting equations
6C - 4C = 84 - 64
2C = 20
C = 10
A = 42 - 3(10)
A = 12
Hence "The cost of a ticket for an adult is $12 while for children it is $10".
! for all values of x, x² + 2x +4 = (x + 2)² + a( x + 2) + b where a and b are constants. what is the value of a ?
The value of a in the quadratic equation x² + 2x +4 = (x + 2)² + a( x + 2) + b is equal to -2.
How to solve the constant "a" in the quadratic equation.We shall first expand the right hand side and express it in form of the left hand side of the quadratic equation, and then compare their coefficients to derive the value of the constant as follows;
Left hand side; {open brackets}
(x + 2)² + a( x + 2) + b = x² + 4x + 4 + ax + 2a + b
(x + 2)² + a( x + 2) + b = x² + 4x + ax + 4 + b {group like terms}
(x + 2)² + a( x + 2) + b = x² + (4 + a)x + 4 + b
such that :
x² + 2x +4 = (x + 2)² + a( x + 2) + b, then;
x² + 2x +4 = x² + (4 + a)x + 4 + b
by comparing coefficients, we have that;
4 + a = 2
a = 2 - 4 {subtract 4 from both sides}
a = -2
Therefore, for all values of x, the constant a = -2 for the quadratic equation x² + 2x +4 = (x + 2)² + a( x + 2) + b.
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A 5-pound bag of potatoes cost $4.65. How many pounds, p, can you buy for $8.37
Answer: You can buy a 9-pound bag for $8.37.
Step-by-step explanation:
[tex]\frac{5lbs}{4.65} =\frac{p}{8.37}[/tex]
Then, we cross multiply, and we get:
5(8.37) = 4.65p
41.85 = 4.65p [We divided 4.65 by both sides]
9 = p
if length of a rectangle is (x+7) and breath is (x+5). find the area of the rectangle
Step-by-step explanation:
Area of rectangle is length x breadth.
Area = (x + 7)(x + 5)
= (x² + 5x + 7x + 35)
= (x² + 12x + 35)
equation of a circle with center (0.5, 0.5) and radius 0.5
The equation of the circle is x²+y²-x-y+0.25=0
What is a circle?
A circle is a particular type of ellipse in mathematics or geometry where the eccentricity is zero and the two foci are congruent. A circle is also known as the location of points that are evenly spaced apart from the centre. The radius of a circle is measured from the centre to the edge. The line that splits a circle into two identical halves is its diameter, which is also twice as wide as its radius.
For a circle with radius r and center (h,k), its equation would be (x-h)² + (y-k)² = r²
Given, center is (0.5,0.5) and radius is 0.5, h=0.5, k=0.5, r=0.5
The equation becomes:
(x-0.5)² + (y-0.5)² = 0.5²
⇒x²+0.25-x+y²+0.25-y=0.25
⇒x²+y²-x-y+0.25=0
Thus, the equation of a circle becomes x²+y²-x-y+0.25=0
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A recipe for pizza sauce calls for 11 cans of tomatoes and 44 teaspoons of oregano. How many teaspoons of oregano would you need for a single can of tomatoes?
Answer:
One can of tomatoes needs 4 teaspoons of oregano.
Step-by-step explanation:
[tex]\frac{11}{44}[/tex] = [tex]\frac{1}{x}[/tex] Cross multiply and solve for x
11x = 44 Divide both sides by 11
x = 4
One can of tomatoes needs 4 teaspoons of oregano.
for each 7-subset of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, give the next largest 7-subset or indicate that the 7-subset is the last one in lexicographic order. (a) {1, 2, 3, 4, 5, 6, 7} (b) {2, 4, 5, 9, 11, 12, 13} (c) {2, 4, 5, 11, 12, 13, 14} (d) {2, 4, 5, 6, 11, 12, 14} (e) {7, 8, 10, 11, 12, 13, 14}
(a) {2, 3, 4, 5, 6, 7, 8}
(b) {2, 4, 5, 9, 11, 12, 14}
(c) No next largest 7-subset; this is the last one in lexicographic order.
(d) {2, 4, 5, 6, 11, 12, 13}
(e) No next largest 7-subset; this is the last one in lexicographic order.
What in math is a subset?If all of the items in a set A are also in a set B, then the sets A and B are subsets of one another. To put it another way, the set A is contained within the set B. A and B stand for the subset connection.
Subset example: What is it?For instance, if A represents the set of natural numbers and B represents the set of all whole numbers, then B is a subset of A since the set of whole numbers contains all natural numbers. This is how we may comprehend it: Natural numbers 1, 2, 3, and so on make up the set A. B = A collection of whole numbers, such as "0, 1, 2, 3,..."
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What is the half of 1.875 ? explain in detail ?
The half of the mentioned number after performing multiplication with 1/2 is 0.9375.
The half of 1.875 can be calculated by multiplying with (1/2). Half refers to two parts of one thing and hence it represented as the fraction 1/2. So, to find the half, we will multiply the mentioned number with 1/2.
Half value = 1.875 × 1/2
Now performing division and multiplication on Right Hand Side of the equation
Half value = 1.875/2
Half value = 0.9375
Thus, based on the division, the half of 1.875 is 0.9375.
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Explain what the symbol Z 0.05 represents and state its value: (choose one of the following answers..) a. Z0.05 represents the z-score, the value of the standard normal distribution, at which the probability of being greater than that value is 0.05. The value is Z0.05 =1.65. b. Z0.05 represents the z-score, the value of the standard normal distribution, at which the probability of being less than that value is 0.05. The value is Z0.05 =1.65. c. Z0.05 represents the z-score, the value of the standard normal distribution, at which the probability of being greater than that value is 0.05. The value is Z0.05 =2.58. d. Z0.05 represents the z-score, the value of the standard normal distribution, at which the probability of being less than that value is 0.05. The value is Z0.05 =2.58.
Option 'a' is the correct answer.
Z0.05 represents the z-score, the value of the standard normal distribution, at which the probability of being greater than that value is 0.05. The value is Z0.05 =1.65.
In a normal distribution, data points are referred to as x, whereas in a z-distribution, they are referred to as z or z scores. A z score is a standard score that indicates how many standard deviations a given number (x) is from the mean:
If your x value is higher than the mean, your z score will be positive.If your z score is negative, it indicates that your x value is below the meanYour x value is the same as the mean if your z score is zero.Every z score has a corresponding p-value that indicates the likelihood that all values below or above that z score will occur.
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Find the product with the exponent in simplest
form. Then, identify the values of x and y.
6^1/3x6^1/4=6^x/y
X= ,y=
Answer: 6^1/3x6^1/4=6^x/y
X= ,y=
Step-by-step explanation:
Answer:
x = 7 , y = 12
edge 2023
Brenda is opening a savings account which compounds interest quarterly. Her banker gave her the following expression to find the amount that will be in the account, in dollars, after t years.
Which statement below best describes the coefficient, 3,700?
3700(1.05)^4t
A. the amount of the yearly earnings
B. the rate at which the account is increasing
C. the amount of the initial deposit
D. the number of times the account has compounded since it was opened
This statement best describes the coefficient, 3,700 is "the amount of the initial deposit". which is the correct answer would be option (C).
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
The exponential function is given in the question as:
3700(1.05)^4t
This expression is for the amount that will be in the account, in dollars, after t years.
As per the question,
The coefficient, 3,700 represents the amount of the initial deposit in the given exponential function
Thus, the correct answer would be an option (C).
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One brand of canned salmon is sold in four different sizes. Size A The 7! 5 ounce can costs $3.49. Ste B The 16, ounce can costs $6 49. Stec The 24, ounce can costs $8.49. _2 Size D The 30 5 ounce can costs $10.99. Part A What is the unit rate for each size to the nearest hundredth of a dollar? Size Unit rate A 10 B C
The unit rate for each size to the nearest hundredth of a dollar is Size A = $0.484, Size B = $0.393, Size C = $0.343 and Size D =$0.359.
What is unit rate?
Unit rate is a rate in which the second term of a ratio is one. Unit rate is a way to compare different quantities in which the second term is a constant of one. Unit rate is determined by dividing one quantity by another, with the second quantity always being one. Unit rate can be used to compare different items, such as prices when shopping, or to measure the speed of an object over a given period of time. Unit rate is often expressed as a whole number or a fraction.
Unit rate for Size A = $0.48, Size B = $0.39, Size C = $0.34 and
Size D =$0.36.
Given:
Size A The 7 1/5 ounce can cost $3.49.
Size B The 16 1/2 ounce can cost $6.49.
Size C The 24 3/4 ounce can cost $8.49.
Size D The 30 2/3 ounce can cost $10.99.
To find the unit rate for each, we take the total price and divide by the total ounce,
Size A = [tex]\frac{3.49}{\frac{36}{5} } =0.484[/tex]
Size B = [tex]\frac{6.49}{\frac{33}{2} } =0.393[/tex]
Size C = [tex]\frac{8.49}{\frac{99}{4} } = 0.343[/tex]
Size D = [tex]\frac{10.99}{\frac{92}{3} } = 0.359[/tex]
Hence, the unit rate for each size to the nearest hundredth of a dollar
is Size A = $0.484, Size B = $0.393, Size C = $0.343 and
Size D =$0.359.
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