Answer:
The sales tax is determined by computing a percent of the purchase price. To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price.
How to integrate this?
If vertical angles are congruent, then two lines cut by a transversal are parallel.
a. True
b. False
The answer is True. If two vertical angles are congruent, then two lines cut by a transversal will be parallel.
Vertical angles are angles that are opposite each other and share the same vertex. They are congruent angles, meaning that they have the same measure. When two angles are congruent, the sides of the angles are parallel. This means that the two lines cut by a transversal will also be parallel.
The formula for this is that if two angles are congruent, then the lines cut by a transversal are parallel. This is also known as the Angle-Angle-Angle (AAA) Postulate. This postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar. This means that the lines cut by a transversal are parallel.
In other words, if two angles of a triangle are congruent, then the two sides of the triangle that make those angles are parallel. This is because the two angles are congruent, meaning that they have the same measure. Therefore, if two vertical angles are congruent, then two lines cut by a transversal will be parallel.
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State the area of the given triangle.
A: 28 Square Units
B: 24 Square Units
C: 60 Square Units
D: 36 Square Units
Answer:
24 Square Units (B)
Step-by-step explanation:
⭐ The formula for the area of any triangle is: 1/2(bh), where b = base, and h = height.
⭐ The height of a triangle is the triangle's altitude, which can be denoted by a straight line with a right angle. In this problem, the height is given to you.
Let's substitute what we are given to find the area.
area = 1/2(bh)base = 12 square unitsheight = 4 square unitsarea = 1/2(12*4)area = 1/2(48)∴ area = 24 square unitsWhich expression(s) are equivalent to (5^1/8•5^3/8)^3?O 5 2/3O 5 9/8O 5^3O 5^9
The last expression is equivalent to √5³.
What equation contains an expression?
The equal to sign (=) is the best indicator of whether a given problem is an equation or an expression because it indicates that the problem is an equation.
It is only an expression if there isn't an equal to (=) sign present. It contains data that is used to demonstrate value, such as numbers, variables, and operators.
[tex]= ( 5^{1/8} * 5^{3/8} )[/tex]
[tex]= ( 5^{1/8} * 5^{3/8} ) \\= 5^{(1/8 + 3/8)}[/tex]
[tex]= 5^{4/8}[/tex]
[tex]= 5^{(1/2)}[/tex]
[tex]= [5^{(1/2)}]^{3}[/tex]
Because of the "Power of a power property"
= [tex]5^{3/2}[/tex]
The last expression is equivalent to √5³.
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What are 3 examples of value?
Thousands, hundreds and tens are three examples of values and there are many more.
What is value?Value in mathematics is a number that represents the outcome of a computation or function. In the aforementioned example, you may inform your teacher that 5 + 6 Equals 30 or that x + y = 9 if x = 6 and y = 3. A variable or constant can also be referred to as a value.
What is the value of 4?The number 4 is in this case in the tens column. As a result, the place value of the number four is tens or tens.
Thousands, hundreds and tens are three examples of values and there are many more like ones etc. Moreover after solving any problem for unknown variable the resulting numerical solution can also be termed as value.
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138 cm² = (x + 2) × ( 2x + 3) x 1/2
Answer:
Step-by-step explanation:
138 cm² = (x + 2) × ( 2x + 3) x 1/2
138 cm² = x + 2 × 2x + ) x 1/2
138 cm² = x + 4x + x * 0.5
0.5/138 cm² = 6x * 0.5 /0.5
6/69cm² = 6x/6
x = 11.5
This might be wrong so just take the square root of 138.
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How do you write 3 more than 5?
“3 more than 5” written as an algebraic expression is “3+5” which is equal to 8.
In a formula or equation involving mathematical operations, the representation of numbers by alphabet is referred to as algebra. Similar to how a statement explains the link between certain words, algebraic equations describe the connection between unknown variables.
We are given a mathematical statement and have to convert it into an algebraic expression using the information above.
3 more than 5 is obtained after adding 5 to the given number which is 3.
So 3 more than 5 is equal to 3+5=8.
Hence “3 more than 5” written as an algebraic expression is “3+5” which is equal to 8.
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How do you factor using the rational root theorem?
We can factor using the rational root theorem by a rational number, both the leading coefficient and the constant term must be divisible by the fraction's denominator.
The rational root theorem, also known as the rational root test, is an algebraic principle that states that for a polynomial equation with one variable and integer coefficients to have a solution (root) that is a rational number, both the leading coefficient and the constant term must be divisible by the fraction's denominator.
A particularly helpful theorem is the theorem of rational roots.
It explains how to get a list of potential solutions for a polynomial function with integer or whole number coefficients by ranking the factors of the constant, or last term, over the factors of the coefficient of the leading term.
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Use point-slope form to write the equation of a line that passes through the point (-1, 10) with slope 11/9
The equation of the line that passes through the given points will be equal to 11x -9y + 101 = 0.
What is the slope?It is possible to determine a line's direction and steepness by looking at its slope. Finding the slope between lines inside a coordinate plane can aid in anticipating if the lines are perpendicular, parallel, or none at all without physically using a compass.
As per the data in the question,
Use the equation of the line passing through the point (x₁, y₁) with slope m will be:
y - y₁ = m(x - x₁)
Slope, m = 11/9
And, the points are (-1, 10)
Now,
y - 10 = 11/9(x + 1)
9y - 90 = 11x + 11
11x - 9y + 11 + 90 = 0
11x -9y + 101 = 0
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At a football game, a vender sold a combined total of 191 sodas and hot dogs. The number of sodas sold was 43 more
than the number of hot dogs sold. Find the number of sodas sold and the number of hot dogs sold.
Number of sodas sold:
Answer:
There were 74 hot dogs and 117 sodas sold.
Step-by-step explanation:
The following equation describes the conditions of the question:
[tex]191=x+(x+43)\\191=2x+43\\[/tex]
where x is the number of hot dogs sold.
Solve for x:
[tex]191=2x+43\\(191)-43=(2x+43)-43\\148=2x\\\frac{148}{2}=\frac{2x}{2}\\74=x[/tex]
There were 74 hot dogs sold and (74+43) or 117 sodas sold.
What should be included in SSS concerns?
"If in two triangles, sides of one triangle are proportionate to (i.e., in the same ratio of) the sides of the other triangle, then their corresponding angles are equal and consequently the two triangles are comparable," asserts the Side-Side-Side (SSS) criteria.
Take a look at the triangles below.
- We can see that all three pairs of the sides of these triangles are congruent. - This is also known as "side-side-side" or "SSS." According to the SSS criteria for triangle congruence, two triangles are congruent if they have three pairs of congruent sides.
SSS Congruence Rule Theorem
When one triangle's three sides are identical to the corresponding three sides of another triangle, two triangles are said to be congruent.
The aforementioned theorem will now be proven.
Given: [tex]\triangle A B C[/tex] and [tex]\triangle P Q R[/tex] such that AB=PQ, BC=QR and AC=PR.
To prove: [tex]\triangle A B C \cong \triangle PQR[/tex]
Construction: Let BC be the longest side of [tex]\triangle A B C[/tex] and so QR is the longest side of [tex]\triangle P Q R.[/tex]
Draw PS so that [tex]\angle R Q S=\angle C B A[/tex] and [tex]\angle Q R S=\angle B C A[/tex].
Join SQ and SR.
In [tex]\triangle ABC[/tex] and [tex]\triangle SQR[/tex],
BC=QR Given
[tex]\angle C B A=\angle R Q S[/tex] By construction
[tex]\angle B C A=\angle Q R S[/tex] By construction
[tex]\triangle A B C \cong \triangle SQR[/tex] By ASA congruence
[tex]\angle A=\angle S[/tex] By CPCTC
AB=SQ By CPCTC
AC=SR
Now, AB=PQ and AB=SQ => PQ=SQ
Similarly, AC=PR and AC=SR => PR=SR
Hence, [tex]\triangle ABC \cong \triangle PQR,[/tex]
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What is the smallest number of paintballs that carolina can buy along with the entrance fee to get the promotion?.
The inequality that represents this scenario is 0.08B >= 57.
To get the promotion, Carolina needs to spend at least $75 on paintballs and the entrance fee. The entrance fee is a fixed cost of $18, so we need to find the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more.
The cost of the paintballs is calculated using the formula 0.08B, where B is the number of paintballs that Carolina buys. We can use this formula to write an inequality that represents the scenario described in the problem.
The total cost of the paintballs and the entrance fee is calculated using the formula 0.08B + 18. This formula represents the total cost of the paintballs and the entrance fee for any number of paintballs that Carolina buys.
To find the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more, we can set the total cost equal to $75 and solve for B:
0.08B + 18 >= 75
0.08B >= 57
B >= 712.5
The inequality 0.08B >= 57 represents the scenario described in the problem. It states that the number of paintballs that Carolina needs to buy in order to reach a total cost of $75 or more is greater than or equal to 712.5.
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The question is -
Carolina goes to a paintball field that charges an entrance fee of $18 and $0.08 per ball. The field has a promotion that says, "Get $10 off if you spend $75 or more!" Carolina wonders how many paintballs she needs to buy along with the entrance fee to get the promotion, Let B represent the number of paintballs that Carolina buys. What inequality describes this scenario?
What kind of sequence is 3/6 12 24?
This is an arithmetic sequence. In this sequence, the common difference is 6 (12 - 3/6 = 6).
What is sequence?A sequence is an ordered arrangement of objects or events which follow one another in a specific order. This order can be based on a mathematical rule or pattern, such as a sequence of numbers, or it can be based on physical or temporal characteristics of the objects or events, such as the order in which they appear in a movie or story. Sequences are useful for representing and analyzing data, as well as for visualizing relationships between objects. They can also be used to model problems, such as predicting the future or solving a puzzle.
This is an arithmetic sequence. An arithmetic sequence is a sequence of numbers in which each term after the first is found by adding a constant, called the common difference, to the preceding term. In this sequence, the common difference is 6 (12 - 3/6 = 6).
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) Select all ratios equivalent to 5:4.
30:24
7:2
16:20
Answer: c. 16:20
Step-by-step explanation:
30/5=6
24/4=6
What is the relationship between the volume of a rectangular prism and a pyramid and between a cylinder and cone?
The relationship between the volume of pyramid and prism is that when a pyramid and prism have the same base and height, volume of prism is 1/3rd the volume of prism.
The volume of the cylinder is 1/3rd the volume of the cone.
The volume of the sphere is 2/3rd the volume of the cylinder with same radius and height equal to the diameter.
Pyramid is said to have a polygonal base and flat triangular faces, which are connected to a common point called apex.
Prism is a combination of flat faces, identical bases and cross-sections being equal.
Cylinder has two parallel bases joined by curved surface through a fixed distance.
Cone has a circular base and a curved surface tapering till the apex.
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What does 4 3 mean in math?
43 in arithmetic stands for multiplying 4 by three. Suppose x =43; then, x+4*4*4.
What is the power of numbers?If the power is positive, multiply the integer by itself that many times. If the power is negative, multiply the reciprocal of the integer by itself that many times. If the power is 0, the result is always 1.
Are 3 and 9 three the same?No, 3:9 and 9:3 are not equivalent. 3^9=19683 and 9^3=729.
4^3=4*4*4\s =16*4\s =64
Which one—math or maths—is correct?In the US and Canada, math is the word of choice. In the United Kingdom, Ireland, Australia, and other English-speaking countries, math is the preferred term. There isn't really a rational reason why math grew more popular in certain locations while maths was elsewhere.
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What are the factors of x³ 21x 20?
Therefore , the factors of the given equation are (x + 4), (x - 5) and (x + 1)
What is equation?The equal sign is used between numerical or changeable expressions to create an equation, such as 3x+5=11.
A number that can be entered as the variable's replacement in an equation serves as the solution.
Here,
The first term, x2, has a coefficient of 1 and is the starting term.
The coefficient of the middle word, +5x, is 5, thus
"The constant," the final word, is +4.
Step 1: Multiply the first term's coefficient by the formula 1 + 4 = 4.
Step 2 is to identify two factors of 4 whose sum equals the middle term's coefficient, which is 5.
-4 + -1 = -5
-2 + -2 = -4
-1 + -4 = -5
4 + 1 = 5
Step 3: Rewrite the polynomial by separating the middle term into the two parts 1 and 4 x2 + 1x + 4x + 4 discovered in Step 2 above.
Step-4 : adding the first two terms while excluding similar elements
x • (x+1)
Adding the last two terms together and finding commonalities:
4 • (x+1)
Step-5 : In step 4, add up the four terms:
(x+4) • (x+1)
Which is the desired factorization
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How do you find the value of x and y in a triangle?
On solving the provided question, we can say that the value of x = 5√3
and value of y = 10.
How to find the value of x and y?
To find the values of x and y, you will need to use
the Pythagorean theorem,The trigonometric ratio: soh-cah-toa, andspecial values of trigonometric functions.According to the given question:
Using the table of trig values, we find that
sin30°=1/2
So, this gives us:
1/2 = sin 30° = 5/y
1/2 = 5/y
(1xy)/2 = 5
y= 2×5 =10
Next, using the Pythagorean Theorem, we find that
5²+x²=10²
x²=100−25=75
Solve for x:
x=√75=√3×25=5√3
Complete question:
How do you find the value of X and Y. Y is the hypotenuse, 5 is the adjacent side and X is the opposite side from Y, and in the triangle there is 30 degrees where X and Y lines meet?
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Your friend asks you for help on a geometry exercise. Your friend's paper is shown to the right. What error did your friend make? Explain.
a.Your friend's paper does not name the triangles correctly for them to be congruent.
b. Your friend's paper shows that the SAS Postulate should be used to show congruence because a pair of congruent angles is included between two pairs of congruent sides.
c. The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the triangles do not have two pairs of congruent angles.
d.
The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the included sides between the two pairs of congruent angles are not marked as congruent in both triangles.
Two or more shapes are said to be similar if they have common corresponding properties of sides and/ angles. Thus the error made is option D.
Similar shapes are two or more given shapes that have some common properties with respect to their corresponding sides or angles. So that if on comparing each corresponding sides or angles, and are related, then they are similar. Note that similarity does not imply congruency.
Comparing the sides and angles of the given triangles ΔLMN and ΔQRS, it can be seen that;
Angle Side Angle (ASA) similarity relation implies that the included side between two pairs of congruent angles are similar. Thus, the error made in the diagram is explained in option D.
Option D. The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the included sides between the two pairs of congruent angles are not marked as congruent in both triangles.
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On a map of the Thunderbird Country Club golf course, 1.5 inches equals 45 yards. How long is the 17th hole if the map shows 8.5 inches?
The 17th hole would be 255 yards long.
What are ratio and proportion?
A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
hole = c yards
1.5 / 40 = 8.5 /c
1.5 * c = 45 * 8.5
1.5 * c = 382.5
c = 255 yards
Hence, the 17th hole would be 255 yards long.
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Is AAA a postulate or theorem?
The AAA (angle-angle-angle) similarity theorem states that two triangles' corresponding angles are identical if and only if their corresponding sides are proportionate.
Knowing two angles, such as 32° and 64°, we may calculate the following angle, which is 84°, since 180-(32+64)=84. (This is commonly referred to as the AAA Postulate—which is valid in every way, although two angles are more than enough.) Working backwards will help you understand the proposition better.
The sides and angles of a set of triangles must be equal for them to be congruent. The sides of a triangle with all respective angles equal, i.e. AAA condition, may or may not be equal.
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these two triangles are similar. if the base of triangle abc is 3 cm and the base of triangle def is 6 cm, and the perimeter of triangle abc is 11 cm, calculate the perimeter of triangle def
The perimeter of triangle def similar to triangle abc is 22 cm.
What is Perimeter?Perimeter is the total distance around a object.
Note: The ratio of the perimeters of two similar figures is equal to the ratio of their corresponding side lengths.
To calculate the perimeter of triangle def, we use the formula below.
Formula:
B/B' = P/P'.................. Equation 1Where:
B = Base of triangle abcB' = Base of triangle defP = Perimeter of triangle abcP' = Perimeter of triangle defFrom the question,
Given:
B = 3 cmB' = 6 cmP = 11 cmSubstitute these values into equation 1 and solve for P'
3/6 = 11/P'P' = 6×11/3P' = 22 cmHence, the perimeter of triangle def is 22 cm.
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By what percent will the product of two numbers decrease if one of them is increased by 30% and the other is decreased by 30%?
Answer:
9% decrease
Step-by-step explanation:
Hope this helps!
A system of equations is shown on the graph below.
How many solutions does this system have?
The system has no solution.
What is linear equations?
The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both intercepts (x and y)
We know that
The solution of the system of two linear equations, is the intersection point both lines.
In this problem
The lines are parallel, the lines don't intersect
therefore
The system has no solution
Remember that, if two lines are parallel then their slope are equal
Verify that the slopes are the same
Blue line
take the points (0,2) and (-2,0)
[tex]m=(0-2) /(-2-0)=1[/tex]
Red line
take the points (0,-3) and (3,0)
[tex]m=(0+3) /(3-0)=1[/tex]
The slopes are equal
The lines are parallel
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What is the inverse of a 2x2 identity matrix?
The inverse of a 2x2 identity matrix is also a 2x2 identity matrix. This is because the identity matrix is its own inverse.
An identity matrix is a square matrix with all primary diagonal members set to one and all other elements set to zero. The letter "In" or just "I" is used to indicate it. Any matrix will produce a given matrix if it is multiplied by the identity matrix. . The components of the provided matrix stay the same.
The 2x2 identity matrix is a square matrix with 1s on the main diagonal and 0s everywhere else. It has the following form:
[1 0]
[0 1]
The inverse of this matrix is also a 2x2 identity matrix with the same form:
[1 0]
[0 1]
Therefore, the inverse of a 2x2 identity matrix is also a 2x2 identity matrix.
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Is triangle ABC = triangle DEF by HL? Explain.
Answer:
If in triangles ABC and DEF, angle A = angle D = right angle, AB = DE (leg), and BC = EF (hypotenuse), then triangle ABC is congruent to triangle DEF.
Question Simplify. 13(5x−8)+23x
Answer:
8(11x-13)
Step-by-step explanation:
[tex]13(5x-8)+23x\\65x-104+23x\\88x-104\\8(11x-13)[/tex]
The football team is selling gift cards in increments of $25 and $50. If they sold $6,000 worth of gift cards which equation could be used to determine how many $50 gift cards, g, were sold if 180 gift cards were sold in the $25 amount?
A 4,500 + 50g = 6,000
B 25 + 50g = 6,000
C 4,500 - 50g = 6,000
D 25g - 50(180) = 6,000
Answer:
A. 4,500 + 50g = 6,000
Step-by-step explanation:
25(18) + 50(g) = 6000
4500 + 50g = 6000
The correct option is A.
the text suggests that one key demographic statistic is the percentage of people in a region that are under 15 years of age. why is this statistic important?
Age demography is important that young people are poised to move into their prime reproductive years.
What is Demographic Statistics?Demography is a measure of the characteristics or changes in population. Births, deaths, age , marriages, immigration, and periodic census records provide important information in making informed decisions about national policy.
Governments, businesses, and non-governmental organizations use demographic data to learn about population characteristics for many purposes, including policymaking and economic market research.
Age Demographics: In the demographics, it is defined as common to divide the population into three broad age groups, children and youth (under 15) and working-age population (15-64) and elderly population (Ages 65 and Over)
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