10, 24, 26 are the Pythagorean triples. Therefore, option (i), (iii) and (iv) are the correct answers.
What are Pythagorean triples?Pythagorean triples are a²+b² =c² where a, b and c are the three positive integers. These triples are represented as (a,b,c). Here, a is the perpendicular, b is the base and c is the hypotenuse of the right-angled triangle.
i) 10, 24, 26
Here, 26²=10²+24²
676=100+576
676=676
So, the given set of numbers are Pythagorean triples
ii) 2, 3, 5
Here, 5²=2²+3²
25≠13
So, the given set of numbers are not Pythagorean triples
iii) 3a, 4a, 5a; where a is any whole number
Here, (5a)²=(3a)²+(4a)²
25a²=9a²+16a²
25a²=25a²
So, the given set of numbers are Pythagorean triples
iv) 7, 24, 25
Here, 25²=24²+7²
625=576+49
625=625
So, the given set of numbers are Pythagorean triples
v) 12, 13, 15
Here, 15²=12²+13²
225=144+169
225≠313
So, the given set of numbers are not Pythagorean triples
Therefore, option (i), (iii) and (iv) are the correct answers.
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What is the center of the circle?
The circle passes through the pint (-2,3). What is it’s radius?
Answer:
Step-by-step explanation:
Use the formula for circles.
[tex]x^{2} + y^{2} = r^{2}[/tex]
Since we already have the values of x and y in the given problem (-2,3), substitute the values in the fomula.
[tex]x^{2} + y^{2} = r^{2}[/tex]
[tex](-2)^{2} + (3)^{2} = r^{2}[/tex]
[tex]4 + 9 = r^{2}[/tex]
[tex]13 = r^{2}[/tex] (square both sides to get the radius)
[tex]\sqrt{13} = \sqrt{r^{2} }[/tex]
[tex]\sqrt{13} = r[/tex]
For what values of x is the equation 34+x4=1 true?
Answer:
true
Step-by-step explanation:
i had the same question on a quiz.
The value of x for the equation 34+x4=1 is [tex]\frac{-33}{ 4}[/tex]
As we have [tex]34+4x=1[/tex]
Subtracting [tex]34[/tex] from both sides we get
[tex]4x=1-34[/tex]
[tex]4x=-33[/tex]
Dividing with [tex]4[/tex] both sides
we get the answer [tex]x=\frac{-33}{4}[/tex]
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Isosceles triangle ABC has AB = AC = 3/6, and a circle with radius 52 is tangent to line AB at B and to line AC at C. What is the area of the circle that passes through vertices A, B, and C ? (A) 24 (B) 25.- (C) 267 (D) 27.01 (E) 28.7
Answer:
Step-by-step explanation:
An isosceles triangle with sides of 3/6, 3/6 and an unknown length, and a circle tangent to the two sides with a given radius can be solved using the Pythagorean theorem, trigonometry and the circle area formula.
We know that the triangle is isosceles, so the angle at point B is congruent to angle at point C, and let's call it x. Now we know that angle BAC = 90- x. Since the circle is tangent to the side AB and AC at B and C respectively, we can use the property of tangents that says that the radius of a circle that is tangent to a line is perpendicular to that line, and we can use the triangle formed by the radius, the side and the angle at that point to apply the Pythagorean theorem.
3/6^2 + r^2 = (3/6/sin(x))^2
r^2 = (3/6)^2 (1/sin^2(x) -1)
Now we can use the area of the circle formula A = πr^2, to find the area of the circle that passes through the vertices A, B, and C:
A = π r^2 = π(3/6)^2 (1/sin^2(x) -1)
Using the values of the problem we get
A = π(3/6)^2 (1/sin^2(90- x) -1) = π(3/6)^2 (1/cos^2(x) -1) = π(52^2) = 2701π = 27.01 (D)
Therefore the area of the circle that passes through vertices A, B, and C is 27.01.
Evaluate the iterated integral by converting to polar coordinates. 20 sqrt(2x − x2) 0 6 sqrt(x2 + y2) dy dx
The supplied statement states that the iterated integral after being converted to interpolation is 32/3.
What is the definition of an integral?In mathematics, an integral is either a number representing the region beneath a function's graph over a certain interval or just a new function, the reverse of which contains the original mechanism (indefinite integral). To complete the whole, an essential component is required. The term "essential" is almost a synonym in this context. Trigonometric functions of functional and equations are a concept in mathematics. Integral is a derivative of Middle English, Latin integer, and Medieval Latin integralis, each of which mean "making up a whole."
Therefore, the area is,
[tex]R=\left\{(x, y) \mid 0 \leq x \leq 2,0 \leq y \leq \sqrt{2 x-x^2}\right\}[/tex]
So,
[tex]y=\sqrt{2 x-x^2}[/tex]
y² = 2x - x²
x² - 2x + y² = 0
x² - 2x + 1 + y² = 1
(x-1)² + y² = 1
In other words, the area is the middle section of the disk with a radius of 1 and a center at (0,1).
Region R's polar coordinates are
x = r cos∅, y = r sin∅
So,
[tex]y=\sqrt{2 x-x^2}[/tex]
y² = 2x - x²
x² + y² = 2x
r² = 2r cos∅
r = 2 cos∅
The polar coordinates of the sphere of integration as,
[tex]R=\left\{(r, \theta) \mid 0 \leq \theta \leq \frac{\pi}{2}, 0 \leq r \leq 2 \cos \theta\right\}[/tex]
The provided integral then becomes,
[tex]\begin{aligned}& \int_0^2 \int_0^{\sqrt{2 x-x^2}} 6 \sqrt{x^2+y^2} d y d x \\= & \int_0^{\frac{\pi}{2}} \int_0^{2 \cos \theta} 6 r \cdot r d r d \theta \\= & \int_0^{\frac{\pi}{2}} \int_0^{2 \cos \theta} 6 r^2 d r d \theta \\= & \int_0^{\frac{\pi}{2}} 6\left(\frac{r^3}{3}\right)_0^{2 \cos \theta} d \theta\end{aligned}[/tex]
[tex]\begin{aligned}& =\int_0^{\frac{\pi}{2}} 2\left(8 \cos ^3 \theta-0\right) d \theta \\& =16 \int_0^{\frac{\pi}{2}} \cos ^2 \theta \cdot \cos \theta d \theta \\& =16 \int_0^{\frac{\pi}{2}}\left(1-\sin ^2 \theta\right) \cdot \cos \theta d \theta\end{aligned}[/tex]
Let u = sin∅ then du = cos ∅ d∅
If ∅ = 0 then u = 0 and if ∅ = π/2 then u = 1.
The above integral thus becomes,
[tex]\begin{aligned}& \int_0^2 \int_0^{\sqrt{2 x-x^2}} 6 \sqrt{x^2+y^2} d y d x \\= & 16 \int_0^1\left(1-u^2\right) d u \\= & 16\left(u-\frac{u^3}{3}\right)_0^1 \\= & 16\left(1-\frac{1}{3}\right)\end{aligned}[/tex]
= 32/3
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you leave a 20% tip on your $50 dinner bill . how much was the tip ?
Answer:$10
Step-by-step explanation:
Assume 20% = 0.20
50 x 0.20 = 10
OR
Move the decimal one place to the left for 10 percent, and double it to get 20 percent.
Answer:
Suppose 20% Equals 0.20.
50 x 0.20 = 10
To acquire 10%, move the decimal one position to the left, and to reach 20%, double it.
Step-by-step explanation:
acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. the abc electronics company has just manufactured 2100 write-rewrite cds, and 50 are defective. if 3 of these cds are randomly selected for testing, what is the probability that the entire batch will be accepted?
The probability that the entire batch will be accepted will be 9339
4000-90 = 3910 (non-defective) (non-defective)
If P(first not defective) = 3910/4000 and it is not changed (1 less to choose from and 1 less not defective)
P(second is not flawed if first is flawed) = 3909/3999 If the item is also not replaced (a total of 2 less to choose from and 2 less not defective)
P
(1st and 2nd are not defective, so the third is also not defective)) = 3908/3998
Simply multiply these three fractions to get the answer: 3910(3909>)(3908)) / (4000(3999)(3998)).
=9339
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Help me please I don’t know just tell me the answer
Step-by-step explanation:
(e) = number of erasers she had originally.
now she has 38.
so,
A
38 = (e) + 10
B
38 - 10 = (e) + 10 - 10
28 = (e)
she had originally 28 erasers.
How is shape d different from shapes a, b, and c?
it has 2 pairs of angles with the same
measure.
a
b
)
it has 2 acute angles and 2 obtuse
angles.
it has only 1 pair of parallel sides.
d
it has 0 pairs of perpendicular sides.
done
On solving the provided question, we can say that unlike other shapes, which all have parallel lines, only has one parallel side.
what is parallel lines?Parallel lines in geometry are coplanar infinite lines that don't intersect anywhere. In a given three-dimensional space, parallel planes are those that never cross. Curves with a constant minimum distance between them and no points of contact or intersection are said to be parallel. Two lines that are in the same plane, equally spaced apart, and never intersect are referred to as parallel lines in geometry. Either horizontal or vertical can apply. Parallel lines can be noticed in everyday objects like railroad tracks, rows of notebooks, and pedestrian crossings.
unlike other shapes, which all have parallel sides, only has one parallel side.
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Which number produces an irrational number when multiplied to 0.5?
Answer: Root 16 = 4, 4*1/2= 2
1/3*1/2= 1/6 r5/9*1/2= 5/18
Root 3 = 1.73205...*1/2= 0.866025...
Root 3 is the answer
Which transformations could be performed to show that △ABC is similar to △A"B"C"?
Answer:
A [tex]180^{\circ}[/tex] rotation about the origin, then a dilation by a scale factor of [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
The preimage is larger than the image.
Eliminate options 1 and 3.Also, the orientiation of the triangle didn't change.
Eliminate option 2.13-45+3+26 = (a) 29 (b) 24 (c)28
answer: none it is -3
2. maria has 3 more than 4 times how much money josh has in savings. if josh has $505, how much does maria have?
Answer:
2023
Step-by-step explanation:
3 + 4x = y
y = 3 + 4(505)
y = 3 + 2020
y = 2023
Which expression is equivalent to −3(2x − 8) + 4x?
A -2x - 8
B -2x + 24
C -10x - 8
D -10x + 24
Answer:
The answer is B -2x +24
Step-by-step explanation:
I will show you how I got this answer step by step
-3(2x-8) + 4x
step 1
distribute the -3 through the parentheses
-6x + 24 + 4xstep 2
collect like terms
so -6x+4x = -2x
ANSWER: -2x+24
The expression is equivalent to the given expression is -2x +24
What is an expression?An expression in math is a statement having minimum of two numbers, or variables, or both and an operator connecting them.
Given that, is an expression -3(2x-8)+4x, we need to find an expression equal to the given,
Simplifying the expression,
= -3(2x-8) + 4x
= -6x + 24 + 4x
= -6x+4x = -2x
Hence, the expression is equivalent to the given expression is -2x +24
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Heeeeeeeeeeeeeeeeeeeelp
Answer:
Step-by-step explanation:
all internal angles in a triangle add to 180 degrees.
77+36=113
180-113=67
we know that the final angle in the triangle is 67 degrees
the left parallel line makes another triangle in the bottom left. we know that one angle is 41 and we just calculated that the other is 67.
41+67=108
180-108=72
so now we know that the small triangle in the bottom left has angles of 41,67 and 72.
all straight lines are 180 degrees, and we just figures out that the left side of the left parallel line is 72 degrees. therefore the other side is 108 degrees.
since they are parallel lines, the left angle of both of them on the bottom line is 72, while the right angle is 108.
this means that x=108 degrees
i hope this is right and it helps if it is correct. really sorry if it is wrong. have a good day :)
I need help with thi
The length of each diagonal is of: 11 units.
How to obtain the length of each diagonal?The diagonal lengths are defined as follows:
WY = 6x - 7.XZ = 3x + 2.As the figure is a rectangle, the diagonal lengths are the same, and thus the value of x is obtained as follows:
WY = XZ
6x - 7 = 3x + 2
3x = 9
x = 9/3
x = 3.
Hence the diagonal length is given as follows:
XZ = 3(3) + 2 = 9 + 2 = 11 units.
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Do absolute value of equations always have 2 answers?
No, the absolute value of equations does not always have two answers
Understanding the absolute value is crucial for mathematicians. We place vertical bars on either side of a number to show its absolute value. On a number line, absolute value refers to distance from zero. A negative number's absolute value is a positive number. A positive number has the same absolute value as another positive number.
There are not always two solutions to an equation's absolute value. An equation involving fundamental values may have one or more solutions, depending on the equation's overall structure and the values that are being entered. For example, whereas the equation |x| = 2x has no solutions, but the equation |x| = 1 has two solutions (x = 1 and x = -1).
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Ai Mi has a part-time job at an ice skating rink selling hot cocoa. She decided to plot the number of hot cocoas she sold relative to the day's high temperature and then draw the line of best fit. Based on the line of best fit, how many hot cocoas would you predict Ai Mi to sell if the day’s high temperature were 64
∘
∘
F?
The number of hot cocoas the Ai Mi would be expected to sell with a high temperature of 64 ºF is given as follows:
60.
How to define the linear function?As the graph of the linear function is given, the most practical way to define the function is using the slope-intercept format, as follows:
y = mx + b.
In which the coefficients are given as follows:
m is the slope, representing the rate of change.b is the intercept, representing the value of y when x = 0.From the graph, when x = 0, y = 111, hence the intercept b is given as follows:
b = 111.
When x increases by 5, from 0 to 5, y decays by four, from 111 to 107, hence the slope m is obtained as follows:
m = -4/5
m = -0.8.
Hence the function that predicts the amount of hot cocoa sold for a high temperature of x ºF is given as follows:
y = -0.8x + 111.
The prediction for a high temperature of x = 64 is given as follows:
y = -0.8(64) + 111
y = 60 hot cocoas, rounded.
Missing InformationThe graph is given by the image presented at the end of the answer.
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describe the possible lengths of the third side of the triangle given the lengths of the other two sides. 9 feet, 16 feet
Answer:
7 ≤ x ≤ 25
Step-by-step explanation:
Triangle Inequality Theorem
The sum of any two sides of a triangle is greater than or equal to the third side:
a + b ≥ cTherefore, the longest side of the triangle is "c".
Let the longest side be "x":
a = 9b = 16Therefore:
9 + 16 ≥ x25 ≥ xLet the longest side be 16:
a = 9c = 16Therefore:
9 + x ≥ 16x ≥ 7As 9 < 16, the longest side cannot be 9.
Therefore, the length of the third side of the triangle, given that the other two sides are 9 ft and 16 ft is greater than or equal to 7, and less than or equal to 25:
7 ≤ x ≤ 25help please its very urgent!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
(Thank you!)
Answer:
4x+5 = 13
Step-by-step explanation:
2x-7= 5
The sum of two numbers is 19, and their difference is 55. What are the two numbers?
Answer:
37 and -18
Step-by-step explanation:
Answer:
let x and y be two numbers
consider the following bet. you toss two coins. if both of them come up heads, you win and get $10. otherwise you lose and have to pay $2. would you take this bet?
I would recommend taking this bet, as the expected value of the bet is Positive.
The expected value of a bet is the sum of the product of each possible outcome and its corresponding probability. In this case, the probability of getting two heads is 0.25, and the payout for that outcome is $10. The probability of not getting two heads is 0.75, and the payout for that outcome is -$2. When you multiply each outcome by its corresponding probability and sum them together, the expected value of the bet is $1.0. Because the expected value of the bet is positive, it is a good bet to take. It is more likely that you will gain money .
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Samuel is remodeling his basement. One part of the planning involved the flooring. He knows that he would like both carpet and hardwood, but isn’t sure how of each he will use. The most amount of flooring area he can cover is 2000 square feet. The carpet is $4. 50 per square foot and the hardwood is $8. 25 per square foot. Both prices include labor costs. Samuel has budgeted $10,000 for the flooring.
Write a system of inequalities to represent the maximum amount of flooring needed and the maximum amount of money Samuel wants to spend
The system of inequalities to represent the maximum amount of flooring needed and the maximum amount of money Samuel wants to spend is x + y <= 2000 and 4.50x + 8.25y <= 10000.
Let x be the number of square feet of carpet and y be the number of square feet of hardwood.
The most amount of flooring area he can cover is 2000 square feet. So the first inequality represents the maximum amount of flooring area that Samuel can cover:
x + y <= 2000
The carpet is $4. 50 per square foot and the hardwood is $8. 25 per square foot and Samuel has a budget of $10,000. So the second inequality represents the maximum amount of money that Samuel wants to spend:
4.50x + 8.25y <= 10000
So the system of inequalities is:
x + y <= 2000
4.50x + 8.25y <= 10000
This system represents the possible combinations of carpet and hardwood that Samuel can use while staying within his budget and the maximum amount of flooring area he can cover.
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Ratio of boys to girls is 4:5 what fraction of class is boys
Answer:
The ratio of boys to girls is 4:5, which can be simplified to 4/5.
The fraction of the class that is boys is 4/5 (or 0.8), and the fraction of the class that is girls is 5/9 (or 0.5555).
So, 4/9 of the class is boys.
Zach substitutes the values 32 inches, 20 inches, and 20 inches into the Pythagorean theorem. Explain what Zach is most likely trying to find out.
Zach is trying to find out the hypotenuse value of the right-angle triangle.
What is the right triangle?
A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.
The Pythagorean theorem states that "in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides".
Zach is most likely trying to find the length of the hypotenuse of a right triangle, which is the side opposite the right angle, given the lengths of the other two sides.
In this case, given 32 inches, 20 inches, and 20 inches values, he's trying to find out the hypotenuse value of the right-angle triangle.
Hence, Zach is trying to find out the hypotenuse value of the right-angle triangle.
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PLEASE HELPPPP
2(y+a)/a(x-3)
find the restriction
Answer:
a ≠ 0
Step-by-step explanation:
You want to know the restriction applicable to 2(y+a)/a(x-3).
UndefinedA rational expression is undefined when its denominator is zero. The restrictions are applied so that no denominator is zero.
Here, the expression is ...
[tex]\dfrac{2(y+a)}{a}(x-3)[/tex]
The only denominator is 'a'. It cannot be zero.
The restriction is a ≠ 0.
__
Additional comment
If we assume this is a relation in which x- and y- are the only variables, there is no restriction on the relation as written.
Perhaps you intend that (x-3) be a denominator factor. Then the relation would have the restriction x≠3. Such an expression would need to be written as ...
2(y+a)/(a(x-3)) . . . . . . using parentheses around the denominator
<95141404393>
Which relation is a function?
The required, relation shown in graphs A and D is functions.
What are functions?Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
Here,
The curves shown in graphs B and C are not functional, as both graphs consist of only one variable.
While curve shown in graph A and D are function because it shows the relationship between two variables x and y.
Graph A shows, Absolute value function,
Graph D shows the quadratic function.
Thus, the Relation shown in graphs A and D is functions.
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B. Reviewing Key Terms
Complete each sentence by writing the correct term in the blank.
15. When a bank borrows money from another bank, the interest rate it pays is called the
16. Ownership of more than one bank constitutes a
17. When a bank customer writes a check, the check will go through the process of
M
18. A bank's total assets minus its total liabilities make up its
19. Banks repay loans from the Federal Reserve at a rate of interest called the
The correct term for each term is -
Federal Fund Rate
Bank holding company
Check clearing
Net worth
Discount rate
What is an account?
A certain kind of financial asset or debt that is kept and owned in your name.
When a bank borrows money from another bank, the interest rate it pays is called the Federal Fund Rate.
Ownership of more than one bank constitutes a bank holding company.
When a bank customer writes a check, the check will go through the process of check clearing.
A bank's total assets minus its total liabilities make up its net worth.
Banks repay loans from the Federal Reserve at a rate of interest called the discount rate.
Therefore, these are the key terms used in banking.
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Complete the statement with >, < or =.
To complete the given statement, we have;
i. SM > DM
ii. <PQS < <RQS
iii. AS > RM
iv. m<1 = m<2
Properties of sides and angles of a triangles.Any given shape which is bounded by straight side is referred to as a plane shape. Examples include: triangles, rectangle, trapezium, parallelogram etc.
It can be observed in the given question that the shapes have different properties regarding their length of sides and measure of internal angles. Each of the statement can be completed as thus;
1. From triangle SJD,
m<SJM > m<DJM
Then, it can be deduced that;
SM > DM
2. From quadrilateral PQRS,
RS > PS
It can be deduced that;
<PQS < <RQS
3. From triangle AMS, it can be deduced that AS > RM.
4. From quadrilateral ABCD,
AD II BC
Then,
m<1 = m<2 (by alternate angle property)
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Use the distributive property to remove the parentheses
(-4+v+4x)(-6)
By distributive property for real numbers, the expression (- 4 + v + 4 · x) · (- 6) is equivalent to the expression 24 - 6 · v - 24 · x.
How to use distributive property
In real algebra, distributive property is an algebraic property where a real number is "distributed" on every term of a sum of real numbers. This property is described below:
c · (a + b) = a · c + b · c
Where a, b, c are real numbers.
Now we proceed to use distributive property in the following case. First, write the entire expression:
(- 4 + v + 4 · x) · (- 6)
Second, apply distributive property:
(- 6) · (- 4) + (- 6) · v + (- 6) · (4 · x)
Third, use associative property:
(- 6) · (- 4) + (- 6) · v + [(- 6) · (4)] · x
Fourth, use sign laws and multiply on each term:
24 - 6 · v - 24 · x
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How many solutions can an absolute value equation have?
An absolute value equation may have one solution, two solutions, or no solutions.
Absolute value means "distance from zero" on a number line. To represent the absolute value of a number, we use a vertical bar on either side of the number.
The absolute value is the distance from zero, It is the non-negative quantity, which defines the number as the distance of the number from zero on the number line.
The absolute value has only one solution when it is compared to 0.
When the absolute value equation is compared with any positive number, then the number of solutions is two.
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