A 30-degree angle is a measure of an angle, which is one-sixth of a full rotation or circle.
The measure of an angle is the amount of rotation between the two rays that form the angle, measured in degrees. The full rotation of a circle is 360 degrees, so one-sixth of a full rotation is 360 degrees divided by 6, which equals 60 degrees. However, a 30-degree angle is half of a 60-degree angle, so it is half of one-sixth of a full rotation, which is 30 degrees. It's also a right angle's complement angle, meaning that the sum of the 30 and 60 degrees angles is 90 degrees, a right angle. In geometry, 30-degree angles are often used in various calculations and constructions, such as finding the measure of complementary and supplementary angles, solving trigonometric problems, and drawing geometric figures.
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Find the measure of the base angle in an isosceles triangle that has a base length of 6 and a leg length of 5. Round your answer to the nearest whole degree.
The base angle for the isosceles triangle is 53°.
What is an isosceles triangle?Any triangle with two sides that have the same length is said to be an isosceles triangle. If the two sides of a triangle are congruent, then the angle across from them must likewise be, according to the theorem that explains the isosceles triangle. As a result, the two angles of an isosceles triangle that are on opposite sides with equal numbers are equal in size.
Given base length = 6 and leg length = 5
draw a perpendicular to the base that divides the base into equal parts,
as shown in the image attached
let the base angle be Ф,
and using a cosine formula for the base angle
cosФ = base/hypotenuse
from construction base = 3 and hypotenuse = 5
cosФ = 3/5
Ф = cos⁻¹(3/5)
Ф = 53.13°
Ф = 53° (approx)
Hence the base angle is 53°
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How do you multiply a 3 digit number?.
There is a points of multiply a 3 digit number :
Line up both your numbers with one on top of the other. Multiply the top number by the last digit of the second number – the 'ones' unit. Multiply the top number by the second digit of the second number – the 'tens' unit.Now, According to the question:
To multiply means to add equal groups. When we multiply, the number of things in the group increases. The two factors and the product are parts of a multiplication problem. In the multiplication problem, 6 × 9 = 54, the numbers 6 and 9 are the factors, while the number 54 is the product.
If we need to multiply 123 × 3, we place them as shown below where 123 is the multiplicand and 3 is the multiplier. After multiplying these numbers we get the product as 269
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What are the 10 algebraic identities Class 9?.
The algebraic identities are
(x + y)² = x² + y² + 2xy,
(x – y)² = x² + y² – 2xy,
x² – y² = (x + y) (x – y),
(x + a) (x + b) = x² + (a + b)x + ab,
(x + y)³ = x³ + y³ + 3xy(x + y),
(x – y)³ = x³ – y³ – 3xy(x – y),
(x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx,
x³ + y³ + z³ – 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx) .
These algebraic identities basically carry variable equations in such a way, that the Left-hand side (L.H.S) of the equation is equal to its Right-hand side(R.H.S).
What is the use of algebraic identities?
Algebraic Identities help in simplification. Algebraic Identities play a major role in solving quadratic equations and higher power equations.
The algebraic identities are also used to calculate products of numbers and other things.
Let us consider x, y and z are variables.
Algebraic Identities for Two Variables x and y :
(x + y)² = x² + y² + 2xy
(x – y)² = x² + y² – 2xy
x² – y² = (x + y) (x – y)
(x + a) (x + b) = x² + (a + b)x + ab ; a and b are two constant values
(x + y)³ = x³ + y³ + 3xy(x + y)
(x – y)³ = x³ – y³ – 3xy(x – y)
Algebraic Identities for Three Variables x, y and z :
(x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx
x³ + y³ + z³ – 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx)
So, the algebraic identities are
(x + y)² = x² + y² + 2xy,
(x – y)² = x² + y² – 2xy,
x² – y² = (x + y) (x – y),
(x + a) (x + b) = x² + (a + b)x + ab,
(x + y)³ = x³ + y³ + 3xy(x + y),
(x – y)³ = x³ – y³ – 3xy(x – y),
(x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx,
x³ + y³ + z³ – 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx) .
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Mi White i renting a van for one week in a few additional day D. He doe not have to pay a per mile fee. Evaluate the expreion 440130 D to find how much he will pay for the nine day rental
For the nine-day rental, the expression for the same sum will be charged as $1,610
The formula combines numerical elements and operations symbolised by the signs for addition, subtraction, multiplication, and division.
Expression are the Mathematical symbols can be used to represent variables, operations, functions, brackets, punctuation, and grouping in addition to numbers (constants). The operation order and other characteristics of the logical syntax can also be indicated by them.
Given that Mr. White will be leasing an enormous vehicle for a week plus a few more days, He is not required to pay a per-mile charge. The formula is 440 + 130d.
The sum will be computed as follows by the expression:
A = 440 + 130d
A = 440 + ( 130 x 9 ) ( 130 x 9 )
A = 440+ 1170
A = 1,610
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???
HELPOOOOOPPPPPPPPPPPPPOPPPPPPPP
Answer:
-13, -22, -31, -40
Step-by-step explanation:
substitute n for each term
A grocery store sells a bag of 6 oranges for 3.27 how much would it cost for 9 oranges
Question 3(Multiple Choice Worth 2 points)
(Slope LC)
What is the slope of the linear relationship?
A graph of a linear function that decreases from left to right passing through the points 1 comma 0 and 3 comma negative 3.
negative three halves
three halves
negative two thirds
two thirds
Answer:
(a) negative three halves (-3/2)
Step-by-step explanation:
You want the slope of the line through points (1, 0) and (3, -3).
Slope formulaThe slope can be found using the formula ...
m = (y2 -y1)/(x2 -x1)
m = (-3 -0)/(3 -1) = -3/2
(a) The slope of the line is -3/2.
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A front-end loader is to load trucks with granular material that has a swell factor of 15%. If the loader has a heaped capacity of 10 cu. Yd. , calculate the total cycle time for the loader if it can move 55 cu. Yd. Of in-bank material in 1 hr. With an efficiency of 48 min. /hr
A front-end loader to load trucks with granular material that has a swell factor of 15%. If the loader has a heaped capacity of 10 cu. Yd. the total cycle time for the loader, if it can move 55 cu, is 16.2 hours( 55 cu. Yd. / 10 cu. Yd. (heaped capacity) * 15% (swell factor) * 48 min. /hr)
The total cycle time for a front-end loader to load trucks with granular material with a swell factor of 15% can be calculated by taking the total amount of in-bank material to be loaded and dividing it by the heaped capacity of the loader. This will give us the total number of cycles the loader must complete. Once we have this number, we must multiply it by the swell factor. This gives us the total number of heaped cycles the loader will have to complete.
Finally, we must multiply the total number of heaped cycles by the efficiency of the loader. Efficiency is the amount of time it takes for the loader to complete one heaped cycle. In this case, the total cycle time for the loader to load is 55 cu. Yd. Of in-bank material with a swell factor of 15% and a heaped capacity of 10 cu. Yd. Is 16.2 hours, assuming the loader has an efficiency of 48 min. /hr.
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To have $8,250 for a child’ education in 10 year, what amount hould a parent depoit in a aving account which earn 12 percent, compounded quarterly?
By applying the future values, the amount of money the parents should deposit to have $8,250 for a child’s education in 10 years is $2,529.09
A current asset's future value, abbreviated as FV, is the value that asset is expected to have at some point in the future, based on a projected rate of growth. The future value is essential for investors and financial planners because they use it to estimate how much money an investment made now will be worth in the future.
To find the future values, we can use this following formula:
FV = I x (1 + R)^T
Where:
I = investment amount
R = interest rate
T = number of years
In this case, we are given that:
Future values (FV) = $8,250
The periodic rate = 12% : 4 = 0.03 (compounded quarterly)
Number of period = 10 years x 4 = 40
Hence, the amount of money the parents should deposit to have $8,250 for a child’s education in 10 years is:
8,250 = I x (1 + 0.03)⁴⁰
I = 8,250: ((1 + 0.03)⁴⁰)
I = $2,529.09
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A farmer feed a cow 9,724 milligram of an antibiotic. Every hour, 50% of the drug break down in the cow' body. How much will be left in 6 hour?
The remaining amount of antibiotic in the cow's body after 6 hours will be 2,431 milligrams * [tex]0.5^5[/tex]= 305.39 milligrams.
Every hour, the cow's body will break down 50% of the initial amount of 9,724 milligrams of the antibiotic. So in the first hour, 50% * 9,724 milligrams = 4,862 milligrams will break down.
The remaining amount of antibiotic in the cow's body after the first hour will be 9,724 milligrams - 4,862 milligrams = 4,862 milligrams.
In the next hour, 50% * 4,862 milligrams = 2,431 milligrams will break down. So the remaining amount will be 4,862 milligrams - 2,431 milligrams = 2,431 milligrams.
This process will repeat for 6 hours, the remaining amount of antibiotic in the cow's body after 6 hours will be 2,431 milligrams * [tex]0.5^5[/tex]= 305.39 milligrams.
The concept used here to solve this is called the half-life, which is the amount of time required for half of the amount of a substance to decay or be used up. In this case, the antibiotic has a half-life of 1 hour, meaning that every hour, half of the initial amount of 9,724 milligrams will be broken down in the cow's body.
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How do you change log base 2 to base 10?.
To change the log base 2 to log base 10, we can use the change of base formula for logarithms.
We know that the change of base formula for logarithms.
The formula to change the base of a logarithm from base 'a' to base 'b' is:
[tex]log_a(m)=\frac{log_b(m)}{log_b(a)}[/tex]
Here, we need to change log base 2 to base 10
By using this change of base formula, we can change the log base 2 to log base 10.
We know that log base 10 is called the common logarithm.
We denote [tex]log_{10} (x)[/tex] as log(x).
Let us assume that we want to change a number log of x to the base 2 to log of x to the base 10
From above formula of change of base we get,
[tex]log_2(x)\\\\=\frac{log_{10}(x)}{log_{10}(2)}\\\\=\frac{log(x)}{log(2)}[/tex]
Thus, we can use the change of base formula for logarithms to change the log base 2 to log base 10,
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How do you write more than 50?.
The greater than sign is '>'. If one value is greater than the other, use greater than. Therefore, we can write more than 50 as x > 50.
Greater Than:
In mathematics, the greater than sign is placed between two values where the first number is greater than the second number.
Example: 60 > 50, where 60 is greater than 50.
In inequalities, the greater-than sign always refers to the greater value, and the sign consists of two equal length dashes joined at an acute angle on the right increase (>).
The greater than sign is used in linear inequalities when the value of a variable is not known to be greater than to a certain value. This symbol is a greater-than symbol (>) with a sleep line below it.
Here are some more examples.
x > 100 means the value of x is greater than to 100.
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find the volume of a square pyramid with a base length 14.2 cm and a height of 3.9 cm
A: 18.5 cm
B 71. 0cm
C 262.1cm
D 786.4cm
Answer:
c
Step-by-step explanation:
V=a2h
3=14.22·3.9
3=262.132cm³
Q.10 Multiply
What is (f. g)(x)?
f(x) = 4x + 1
g(x) = x + 6
Write your answer as a polynomial or a rational function in simplest form.
A polynomial or a rational function in simplest form is (f. g)(x) is 4x² + 25x + 6.
What is Polynomial?The exponents of all the variables of an algebraic statement known as a polynomial must all be whole numbers. In any polynomial, the exponents of the variables must be non-negative integers.By identifying which phrases only contain the processes of adding, subtract, multiplying, and non-negative integer exponents, the polynomials can be located. Expressions with additional processing are considered as non expressions.
Given, f(x) = 4x + 1
g(x) = x + 6
Now, (f. g)(x) = f(x).g(x)
= (4x + 1)(x + 6)
= 4x² + 24x + x + 6
= 4x² + 25x + 6
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Is it possible to construct a triangle whose sides are 10. 2 cm 5. 8 cm and 4. 5 cm which result did you use to verify this?.
Yes, it is possible to draw a triangle.
This will be done by the property: the sum of two sides of a triangle should be more than the third side.
(4.5cm + 5.8cm) =10.2cm
10.3cm = 10.2cm
LHS>RHS
A triangle is possible.
A triangle is a polygon with three edges and 3 vertices. The terminology for categorizing triangles is more than two thousand years vintage, having been defined on the first actual page of Euclid's elements.
In Euclidean geometry, any three factors, while non-collinear, decide a completely unique triangle and simultaneously, a unique plane (i.e. a -dimensional Euclidean space). In different words, there's best one plane that consists of that triangle, and every triangle is contained in some plane. If the entire geometry is only the Euclidean plane, there is the best one plane and all triangles are contained in it; however, in higher-dimensional Euclidean spaces, this is not real. this text is ready triangles in Euclidean geometry, and in particular, the Euclidean plane, except wherein otherwise stated.
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which equation represents the graph below?
Answer:
linear equation represents the graph below
1) At a factory the basic week is 40 hours.
During a particular week Mr. Riley earned a gross
Wage of $513.88, however 159.48 was for
Overtime
Calculate Mr. Riley's basic rate of Payment.
If overtime was paid for a time and a half
determine how many hours Mr. Riley worked
Overtime
If overtime was compensated at time and a half, Mr. Riley would receive 15 hours of base pay.
what is unitary method ?By first figuring out the value of a single unit and then multiplying that value to get the requisite value, a problem can be solved using the unitary technique. For multiplication and dividing by fractions, the unitary strategy is frequently beneficial because it makes sense immediately and can be executed mentally if the numbers add up. Since written methods for fractions are frequently employed, notably division by a fraction, it is useful to explain or defend these algorithms. The unitary method's formula is to get the value of one unit, multiply it by the number of units, and then divide the result by the desired value.
given
The standard workweek is 40 hours.
Gross wages totaled $490.15.
Pay for overtime: $156.75
Total compensation based on a basic week = Total Gross salaries minus overtime pay
Total wages calculated based on a standard week are $490.15 - $156.75 = $334.
Let the basic hourly salary be $8.36 ($x = x).
Let y hours equal the number of overtime hours.
Due to the fact that overtime pay is time-and-a-quarter.
According to the calculation: Equals 15 hours
If overtime was compensated at time and a half, Mr. Riley would receive 15 hours of base pay.
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a cylinder with a radius of 6 cm has a volume of 432 pi cm3. What is the height of the cylinder
The height of the cylinder is given by the equation h = 12 cm
What is a Cylinder?A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder. The volume of a cylinder is
Volume of Cylinder = πr²h
Surface area of cylinder = 2πr ( r + h )
where r is the radius of the cylinder
h is the height of the cylinder
Given data ,
Let the cylinder be represented as A
Now , the radius of the cylinder be r = 6 cm
Let the height of the cylinder be h
Let the volume of the cylinder be V = 432π cm³
Volume of Cylinder = πr²h
Substituting the values in the equation , we get
432π = π ( 6 )² x h
On simplifying the equation , we get
432 = 36h
Divide by 36 on both sides of the equation , we get
h = 12 cm
Hence , the height of the cylinder is 12 cm
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When triangle ABC with A(5,-1), B(0,4), and C(-2,2) is rotate 90 degrees counterclockwise about point A, what are the coordinates of the vertices of the image?
The coordinates of the vertices of the image are:
A' = (-1, 5)
B' = (-4, 0)
C' = (-2, -2)
Option A is the correct answer.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have,
Counterclockwise means the coordinates will interchange and the sign will be depending on the quadrants.
The coordinates of the triangle ABC.
A = (5, -1)
This is in the 4th quadrant.
If rotated 90 degrees counterclockwise A will be in the 1st quadrant.
A' = (-1, 5)
B = (0, 4)
This is in the first quadrant.
If rotated 90 degrees counterclockwise B will be in the 2nd quadrant.
B = (-4, 0)
C = (-2, 2)
This is in the 2nd quadrant.
If rotated 90 degrees counterclockwise C will be in the 3rd quadrant.
C = (-2, -2)
Thus,
The coordinates of the image are:
A' = (-1, 5)
B' = (-4, 0)
C' = (-2, -2)
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A scatter plot was made with a trend line that had an equation of y = -0.25x + 85, where y is the total number of cases of the flu and x is the total number of students who recieved the flu vaccine.
Predict how many students received a flu vaccine if a school had 65 cases of the flu.
Answer:
80 students received a flu vaccine
Step-by-step explanation:
1. graph the equation.
2. Go to 65 on the y-axis.
3. Go to 80 on the x-axis.
4. If the line stops at the point (80,65) then for the 65 cases of the flu at school, 80 students received the vaccine.
Evaluate −xyz
if x= −2/3
, y= 0.6
, and z= 1 7/8
Write your answer as a fraction in simplest form.
Answer:
17/20
Step-by-step explanation:
_(_2/3)*6/10*17/8
2/3×6/10×17/8
=17/20
What is the result when this equation is solved for y? 4x²+6x-2y = 10 O A. y= 2x² + 3x-5 O B. y= 4x² + 6x - 10 C. y=-4x² - 6x + 10 O D. y=-2x²-3x+5
Answer: y=2x²+3x-5
Step-by-step explanation:
Solve 4x²+6x-2y=10
1. subtract 4x² and 6x from both sides
(you do this to leave y by itself)
-2y=10-4x²-6x
2. divide -2 on both sides
y= -5+2x²+3x
This is technically the right answer but you still need to put the numbers and variables in the right order.
y=2x²+3x-5
(variables w/ exponents go first, then the variable, then the number)
Hope this helps! Good luck!
Find the equation of the line joining the points A (1,2) and 8(-1,8)
First, you need to find the slope between the two points:
[tex]\begin{aligned}\dfrac{8-2}{-1-1} & = \dfrac{6}{-2}\\[0.5em]&=-3\endaligned}[/tex]
Now, you use one of the points to find the equation.
You can use point-slope form:
y - 1 = -3 (x-2)
Or you can use slope-intercept form:
y = -3x + 5
Note:
You can find the slope-intercept form by taking y = mx + b and substituting in the slope and a point and solving for b:
2 = -3 (1) + b
i need help with finishing this ASAP
Answer: Look at the image below.
Step-by-step explanation: I traced it out and did the math for you.
Hope this helps! :)
What is the sum of the polynomials (- X² 9 (- 3x² 11x 4?.
The sum of the polynomials (-x² + 9) + (-3x² - 11x + 4) is -4x² - 11x - 5.
A polynomial is described as an expression that consists of variables, constants, and exponents, which might be mixed with the use of mathematical operations along with addition, subtraction, multiplication, and department (No division operation by a variable).
In arithmetic, a polynomial is an expression that includes indeterminates and coefficients, that entail best the operations of addition, subtraction, multiplication, and fine-integer powers of variables. An instance of a polynomial of an unmarried indeterminate x is x² − 4x + 7.
Polynomials are sums of phrases of the form k⋅xⁿ, in which okay is any wide variety and n is a positive integer. for example, 3x+2x-5 is a polynomial. advent to polynomials.
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Complete Question:
What is the sum of the polynomials (-x² + 9) + (-3x² - 11x + 4)?
You are going to exercise at the indoor track. Your friend is going to exercise at the pool. What is the first step in determining where you should park to minimize the distance you both will walk?
The answer is option (D) : Find the midpoint of segment NP.
What is Midpoint?
The midpoint of a line segment is a point that lies exactly halfway between two points. It is the same distance from each endpoint of the straight line segment. Midpoint formula is a mathematical equation that is used to locate the halfway point between two data points. The midpoint formula is applied when one is required to find the exact center point between two defined points.
As Shown in below diagram given below,
suppose need to park at point M (i.e. midpoint of NP)
distance = NM + MP
so, when M is the midpoint of NP and has the minimum distance.
Therefore, the answer is option (D) : Find the midpoint of segment NP.
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a football stadium can seat 62,005 people. if there were 59,319 people in attendance at the game, how many seats were empty?
If f(x) = g(x) = 2x² - 4x + 4 and f(x) = 3x² - 2x + 1, what is
g(x)?
g(x) must be equal to f(x).
What is equivalent function?An equivalent function is a mathematical expression that produces the same result as another expression. It is a function that is mathematically equivalent to a given function, meaning that its graph is the same as that of the given function. Equivalent functions are useful in problem solving as they can be used to simplify a problem or to show a relationship between two functions.
g(x) = 3x² - 2x + 1. This means that f(x) and g(x) are equivalent functions, and thus have the same output for any given input. This means that when x is plugged in to both equations, the resulting output will be the same. Therefore, g(x) must be equal to f(x).
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What is true about the sum of the two polynomials 6s 2t 2st 2 4s 2t 3st 2?.
The sum of the two polynomials 6s^2t^2 + 2st^2 + 4s^2t + 3st^2 is
6s^2t^2 + 2st^2 + 4s^2t + 3st^2 = (6+4)s^2t^2 + (2+3)st^2 = 10s^2t^2 + 5st^2
The polynomials are being added term by term, and the coefficient of each term is being added.
The coefficient of s^2t^2 in the sum is 10, which is the sum of the coefficients of s^2t^2 in the original polynomials (6 and 4).
The coefficient of st^2 in the sum is 5, which is the sum of the coefficients of st^2 in the original polynomials (2 and 3).
So the sum of the polynomials is 10s^2t^2 + 5st^2, this is the final result.
It's important to note that the polynomials have to be in the same order of terms (same exponent) to obtain the correct result when adding them.
The thermostat for a house is set to 25°C and the
temperature deviates by at most 1° C. Write and solve an
inequality to represent this situation and find the highest
possible temperature.
For the given set of information, the inequality 25 - 1 ≤' temperature ≤' 25 + 1
Linear inequalities in two variables are statements containing symbols such as "'<'(less than), '>' (greater than), '≤''(less than or equal to), '≥' (greater than or equal to) and two separate variables.
Linear inequalities are defined as an inequality (expressed by inequality symbols) that holds a linear function.
A linear function is any function with a straight line as its graph.
The inequality representing the situation is:
25 - 1 <= temperature <= 25 + 1
So the temperature must be greater than or equal to 24°C and less than or equal to 26°C.
The highest possible temperature is 26°C.
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