In the given right triangle ,
Sin B = b / c .
What are Trigonometric Identities ?When trigonometric functions are used in an expression or equation, trigonometric Identities are helpful. For every value of a variable appearing on both sides of an equation, a trigonometric identity is true. Certain trigonometric functions (such as sine, cosine, and tangent) of one or more angles are involved geometrically in these identities.
Now in the given question ,
We know that ,
Sin∅ = Perpendicular / hypotenuse
In the given right triangle ,
Sin B = AC / AB
Sin B = b / c
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5 books and 7 pens together cost Rs. 79 whereas 7 books and 5 pens together cost Rs. 77. Represent this situation in the form of linear equation in 2 variables.
Answer:
[tex]5b + 7p = 79[/tex]
[tex]7b + 5p = 77[/tex]
fully simplify using only positive exponets 4x^2y^4/2x^7y^8
The required simplified expression of the given expression is [tex]{\frac{2}{x^5y^4}}$[/tex].
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here
When simplifying the expression 4x²y⁴/2x⁷y⁸, we can divide the numerator and denominator by the greatest common factor of each, which is x²y⁴. Doing so gives us:
[tex]$\frac{4x^2y^4}{2x^7y^8} = \frac{4}{2x^5y^4} = \frac{2}{x^5y^4} = \boxed{\frac{2}{x^5y^4}}$[/tex]
Thus, the required simplified expression of the given expression is [tex]{\frac{2}{x^5y^4}}$[/tex].
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arithmetic of functions
For f(x) =4x+1 and g(x) = x²-5, the answer of (f/g) (x) is D) 4x+1/x²-5, x≠±√5
How to find the equation of (f/g)(x)From the question, we have:
f(x) =4x+1
g(x) = x²-5
If what you are looking for is( f/g) (x), then only place the value of f(x) as the quantifier and g(x) as the denominator. Then the function that satisfies is D.
But here there is a condition that (f/g) (x) applies if the value of x is not √5 or -√5. Because if it becomes an x value then the result will be 0.
We can prove this:
With this equation (f/g) (x)=4x+1/x²-5
let's try to use value of x is √5, it will be
(f/g) (x)=4x+1/x²-5
(f/g) (√5) = 4.√5+1/(√5)²-5
=(4√5+1)/5-5
=(4√5+1) /0
=0
Then, try to use value of x is -√5, it will be
(f/g) (x)=4x+1/x²-5
(f/g) (√5) = 4.(-√5)+1/(-√5)²-5
=(-4√5+1)/5-5
=(-4√5+1) /0
=0
From the results above it proves that option D cannot be used if x= ±√5.
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The width of a rectangle is 5 units less than the length. If the area is 150 square units the find the dimensions of the rectangle
Answer:
Step-by-step explanation:
width is 10 length is 15.
how to solve using the quadratic formula
For a quadratic equation:
a*x^2 + b*x + c = 0
The quadratic formula is just:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}[/tex]
How to solve using the quadratic formula?For a general quadratic equation:
a*x^2 + b*x + c = 0
The quadratic formula is:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}[/tex]
So for example, let's assume that we have the quadratic equation:
3x^2 + 7x - 12 = 0
Here we have the values:
a = 3
b = 7
c = -12
Now you could just replace them in the quadratic formula and you will get:
[tex]x = \frac{-7 \pm \sqrt{7^2 - 4*3*-12} }{2*3}[/tex]
And if you simplify that you will get the two solutions.
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what is equivalent to 4(5x8+7)
Answer:20x^8+28
Step-by-step explanation:multiply both terms by 4
a spinner with 6 equal sections is shown. 1,. 2,. 3,. 4,. 5,. 6,. what is the probability of spinning a number greater than 4? a 1 over 6 b 2 over 3 c 1 over 2 d 1 over 3
The probability of spinning a number greater than 4 on a spinner with 6 equal sections is 1 over 3. (option d)
A spinner with 6 equal sections has an equal probability of landing on any of the 6 sections. To find the probability of spinning a number greater than 4, we need to find the fraction of sections that meet this criterion. In this case, there are 2 sections that satisfy this condition (5 and 6).
Therefore, the probability of spinning a number greater than 4 is 2/6, or 1/3.
It's important to remember that when working with probability, the values can only be between 0 and 1, with 0 indicating an impossible event and 1 indicating a certain event. The probability of any event must be a number between 0 and 1, inclusive.
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one quarter of a number is 6 what is the one third of the number
Answer:
Step-by-step explanation:
One quarter = 1/4
1/4 of a number is 6.
We have to find that number by taking
6 times 4 = 24
So, we know that number is 24
What is one-third of the number?
1/3 of 24 = 8
So, the answer is 8.
Which is a stretch of an exponential growth function?
A rectangular picture frame is
5
inches wide and
12
inches tall. You want to make the area
5
times as large by increasing the length and width by the same amount.
Find the number of inches by which each dimension must be increased. Round to the nearest tenth.
Answer:
Step-by-step explanation:
The current area is 60 sq. in. You wish to increase this area to 300 sq. in. by adding x in two dimensions: namely length and width.
These measurements would be 5 + x wide and 12 + x long.
(5 + x)(12 + x) = 300
x^2 + 17x + 60 = 300
Subtracting 300 from both sides and using the quadratic formula for
x^2 + 17x - 240 = 0,
we find that the one reasonable answer for the measure x is 9.2 inches.
A one-time investment of $1,000 is made into a financial asset that has an average annual return of 8.25%. What is the
future value in 5 years?
F = P(1 + r)
$1,082.5
$1,412.5
$1,486.41
$1,671.14
The future value of this one-time investment of $1,000 in 5 years is equal to: A. $1,082.5.
How to calculate the future value?Mathematically, future value can be calculated by using this formula:
F = P(1 + r)
Where:
F represents the future value.P represents the principal.r represents the interest rate.Substituting the given parameters into the future value formula, we have the following;
Future value, F = 1,000(1 + 8.25/100)
Future value, F = 1,000(1 + 0.0825)
Future value, F = 1,000(1.0825)
Future value, F = $1,082.5.
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Surface area 5in 5in 10in 4in 6 in
Answer:
30
Step-by-step explanation:
5 + 5 + 10 + 4 + 6 = 30
Solve the equation below. Show all work.
12 + 7h = 5
Answer: H = -1
Step-by-step explanation:
12 + 7h = 5
7h = -7
H = -1
a plane flies 360 miles against the wind in 2 hours 15 minutes, while on its return trip it takes 1 hour 30 minutes with the same wind. determine the air speed of the plane.
The air speed of the plane to cover 360 miles against the wind and with the wind in the given time is equal to 200 miles per hour.
Let 'x' be the speed of the plane fly in still air.
And 'y' be the speed of the wind.
Speed against the wind = x - y
Speed with the wind = x + y
Total distance covered by plane = 360 miles
Time taken against the wind = 2 hours 15 minutes
= 2 ( 1/4 ) hours
= 9 / 4 hours
Time taken with the wind = 1 hour 30 minutes
= 1 ( 1/2 ) hours
= 3 /2 hours
Speed = distance / time
Against the wind :
x - y = 360 / (9 /4 )
⇒x - y = 160___(1)
With the wind:
x + y = 360 / (3 /2)
⇒x + y = 240 ___(2)
Add (1) and (2) we get,
2x = 400
⇒ x= 200miles per hour
⇒y = 40 miles per hour
Therefore, the air speed of the plane as per given condition is equal to 200miles per hour.
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1. mCB=
4. m/FOB =
7. m/FIG=
10. MAE=
13. m/COF=
N
The Biggest Circle Puzzle
You are given the following information:
B
2. mZAJC=
5. mFG=
8. MFI =
11. m/ELD =
14. mFM
M
O is the center of the circle.
AB, CD, and EF are diameters.
3. mCG=
6. m/FPC=
9. m/IKF =
12. mCD-
15. m/FNB =
mGB = 26
mZOAH = 50
m/IGA=24
PI = 4.5
CM = 10
'E
H
m/AOC = 30
m/AHF = 65
IF = 10.5
PC = 3.4
HM = 7.5
LD and LE are tangent to the circle.
HELP PLEASE, SHOW WORK
The radius of the circle is equal to the distance between the two points, or LD and LE.
What is circle?A circle is a safe consisting of all points in a plane that are given distance from a given point the centre the distance from the centre to any point on the circle is known as the radius is alkal is no slider corners and all points along the circle are equidistant from the centre.
mCB= Circumference of the circle is the distance around the outside of the circle.
m/FOB= The formula for finding the circumference of a circle is C=2πr, where C is the circumference, π is 3.14, and r is the radius of the circle.
m/FIG= The formula for finding the area of a circle is A=πr2, where A is the area of the circle, π is 3.14, and r is the radius of the circle.
MAE= Mean Average Error (MAE) is used to measure the accuracy of a model or an algorithm by calculating the average difference between the predicted values and the actual values.
m/COF= The coefficient of friction (COF) is a measure of the resistance of a surface to sliding. It is usually expressed as a ratio of the force of friction to the normal force.
mZAJC= Distance between O and A is the same as the distance between J and C, or mZAJC.
mFG= The length of the arc FG is equal to the product of the central angle and the radius of the circle, or mFG.
MFI= The length of the arc FI is equal to the product of the central angle and the radius of the circle, or MFI.
m/ELD= The length of the line segment ED is equal to the difference between the lengths of the two arcs, or m/ELD.
mFM= The length of the arc FM is equal to the product of the central angle and the radius of the circle, or mFM.
m/AOC= The length of the line segment OC is equal to the difference between the lengths of the two arcs, or m/AOC.
m/AHF= The length of the line segment HF is equal to the difference between the lengths of the two arcs, or m/AHF.
IF= The length of the arc IF is equal to the product of the central angle and the radius of the circle, or IF.
PC= The length of the line segment PC is equal to the difference between the lengths of the two arcs, or PC.
HM= The length of the line segment HM is equal to the difference between the lengths of the two arcs, or HM.
LD and LE are tangent to the circle. This means that the radius of the circle is equal to the distance between the two points, or LD and LE.
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Question
According to Dolbear’s law, you can predict the temperature T
(in degrees Fahrenheit) by counting the number x
of chirps made by a snowy tree cricket in 1 minute. For each rise in temperature of 0.25°F, the cricket makes an additional chirp each minute.
a. A cricket chirps 40 times in 1 minute when the temperature is 50°F. Write an equation in slope-intercept form that represents the temperature in terms of the number of chirps in 1 minute.
equation: T=
I need the answer to this fast
Answer: T = 0.25x + 50, where x represents the number of chirps in 1 minute.
Step-by-step explanation:
Let G be the sales (in millions of dollars) of football jerseys. Let H be the sakes (in millions of dollars) of baseball jerseys. During a 5-year period, G and H can be modeled by the following equations, where t is the time (in years).
G = 15t^4 + 13t^3 + 10t^2 - 10t + 750
H - 11t^4 + 13t^3 + 9t^2 + 8t + 650
a. Find a polynomial function A for the total sales of football and baseball jerseys.
A = ?
b. Is the function A even, odd, or neither? Explain.
A. A polynomial function A for the total sales of football and baseball jerseys is 26t^4 + 26t^2 + 760
B. The function A is neither even nor odd
How did we get the value?a. To find a polynomial function for the total sales of football and baseball jerseys, we simply add the two functions:
A = G + H = 15t^4 + 13t^3 + 10t^2 - 10t + 750 + 11t^4 - 13t^3 + 9t^2 + 8t + 650 = 26t^4 + 26t^2 + 760
b. The function A is neither even nor odd. An even function is one that is symmetrical around the y-axis and an odd function is one that is symmetrical around the origin. The polynomial function A has no symmetry around either the y-axis or the origin, so it is neither even nor odd.
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Help i need 4- digit code ALL CAPS
The correct choices are 1) B, 2) G, 3) C, 4) I.
What is percentage?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
According to question:1) The price paid for $60 jeans after a 35% discount is applied can be found as follows:
Discount Amount = 60 * 35% = $21
Price Paid = 60 - 21 = $39
Correct choice is B.
2) The discount amount on a $55 sweatshirt with a 20% discount can be calculated as follows:
Discount Amount = 55 * 20% = $11
Correct choice is G.
3) The 20% tip on a $73 meal can be calculated as follows:
Tip Amount = 73 * 20% = $14.6
Correct choice is C.
4) The 7% sales tax on a new $32,000 car can be calculated as follows:
Tax Amount = 32000 * 7% = $2,240.
Correct choice is I.
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I need help with this question
The algebraic expression for this problem is given as follows:
2C - D = -2x² + 2x + 11.
How to obtain the algebraic expression?The definition for C in this problem is given as follows:
C = x + 3.
We applying the distributive property to multiply by 2 as follows:
2C = 2(x + 3) = 2x + 6.
The definition for D in this problem is given as follows:
D = 2x² - 5.
The subtraction is then obtained as follows:
2C - D = 2x + 6 - (2x² - 5)
2C - D = 2x + 6 - 2x² + 5
2C - D = -2x² + 2x + 11.
Meaning that the second option is correct.
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F If RV = x + 6. US = 5x - 9, and RS = 11,
find VT and ST
The value of VT is 13 units and the value of ST is 23.56 units
Consider the following diagram of rectangle RSTU
We know that the diagonals of rectangle bisect each other, intersect at right angles.
For rectangle RSTU,
2RV = RT
But RT = US
So, 2RV = US
2(x + 6) = 5x - 9
2x + 12 = 5x - 9
12 + 9 = 5x - 2x
3x = 21
x = 7
So, RV = 7 + 6
RV = 13 units
But RV = VT
So, VT = 13
Now we find the value of ST using Pythagoras theorem.
RT² = ST² + RS²
ST = [tex]\sqrt{RT^2 - RS^2}[/tex]
ST = 23.56 units
Thus, VT = 13 and ST = 23.56
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question horatio has $230 to be used only on his car. he wishes to save $160 of this money and spend $24.95 on an oil change. horatio knows that gas costs $3.81 per gallon. which answers show how many gallons of gas (g) he could buy? select all that apply.
Therefore, Horatio can buy approximately 11.83 gallons of gas. However, since he cannot buy a fractional part of a gallon, the actual number of gallons he can buy is either 11 or 12 gallons.
What is equation?An equation is a mathematical statement that shows the equality between two expressions. Equations are used to solve problems and find solutions to mathematical or real-world problems. They typically involve variables, which are symbols that represent unknown values, and constants, which are known values that are used in the equation. Equations can take many forms, but they generally follow the pattern: expression = expression. Equations are an important tool in mathematics, science, and engineering, and they can be used to model and analyze many different types of systems and processes.
Here,
Horatio has $230, but he wishes to save $160 and spend $24.95 on an oil change. So the amount of money he has left to spend on gas is:
$230 - $160 - $24.95 = $45.05
To find out how many gallons of gas Horatio can buy with $45.05, we can divide the amount of money by the price per gallon:
$45.05 ÷ $3.81/gallon ≈ 11.83 gallons
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2 of the walls are 11 and 11, there's 3 more walls to find. Break thr room into rectangles and then do Base × height then add both rectangles together.
Based on the information, it can be inferred that the area of the room is 121m².
How to calculate the area of the room?To calculate the area of the room we must perform the following mathematical procedure:
1. Identify the length of the sides and the base.
2. multiply the length of a side by the base.
3. get the result of the area.
According to the above procedure, the area of the room would be:
11m * 11m = 121m²According to the above, the area of the room would be 121m². The dimensions of the furniture in the room have no influence in this procedure.
Note: This question is incomplete because there is some information missing. Here is the complete information:
question:
Calculate the area of the room.
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PLEASE HELP IM JUST LAZY At a basketball game, a team made 59 successful shots. They were a combination of 1- and 2-point shots. The team scored 103 points in all. Write and solve a system of equations to find the number of each type of shot.
The system of equations to find the number of each type of shot is x + y = 59 and x + 2y = 103
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables using mathematical operations. An equation can be linear, quadratic, cubic and so on, depending on the degree of the variable.
The slope intercept form of the linear equation is:
y = mx + b
where m is the slope and b is the initial value.
Let x represent the number of 1 point shots and y represent the number of 2 point shot.
The team made 59 successful shots, hence:
x + y = 59 (1)
Also, The team scored 103 points in all, therefore:
x + 2y = 103 (2)
From both equations:
x = 15, y = 44
The team made 15 number of 1 point shots and 44 number of 2 point shot.
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ABCD is a parallelogram in which / ADC = 105° and side AB is produced to point E as shown in the figure. Find the value of (x + y).
The value of (x + y) in parallelogram ABCD is equal to 150°.
How to determine the value of (x + y)?Since ABCD is a parallelogram and ∠ADC is equal to 105°. Additionally, side AB in parallelogram ABCD is produced to point E. This ultimately implies that, angle C (∠C) and angle D (∠D) are adjacent angles of parallelogram ABCD:
∠C + ∠D = 180° (supplementary angles).
x + 105° = 180°
x = 180 - 105
x = 75°
Based on alternate interior angles theorem, ∠y is congruent to ∠x. Therefore, we have the following:
∠y ≅ ∠x
y = 75°
(x + y) = (75 + 75)
(x+ y) = 150°.
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Solve by graphing {(3x+4y=-8) (-x+y=5)} I already know the answer I just need the step-by-step equation.
Answer: (-4, 1)
Step-by-step explanation:
To solve graphically, change each equation into slope-intercept form
(y = mx + b)
3x + 4y = -8
+8 +8
3x + 4y + 8 = 0
-4y -4y
3x + 8 = -4y
Divide both sides by -4 to get y by itself
-3/4x - 2 = y or y = -3/4x - 2
Do the same for the other equation.
-x + y = 5
+x +x
y = 5 + x or y = x + 5
Plug in the equations graphically. The point at which the two lines intercept is your answer.
a right triangle has side lengths of 4 centimeters and 5 centimeters. what is the length of the hypotenuse?a. 3cmb. 4cmc. 5cmd /41cm
The correct answer is option d. The length of the given hypotenuse of a right triangle is 7 cm.
A right triangle has side lengths of 4 centimeters and 5 centimeters, so we can use the Pythagorean Theorem to find the length of the hypotenuse. The theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. In this case, the hypotenuse c is given by
[tex]c^2 = 4^2 + 5^2[/tex]
= 16 + 25
= 41
so the length of the hypotenuse is c = √41 = 7 cm.
The answer is d. 7 cm.
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a motor car drives at an average speed of 106km/h for 2 hours 45minutes.at which constant speed must the car drive to travel the same distance in 2hours and 35minutes?
Answer:
Step-by-step explanation:
Let's start by calculating the distance traveled in the first scenario:
Distance = Average speed x time
First, we need to convert 2 hours and 45 minutes to hours. There are 60 minutes in an hour, so 45 minutes is equal to 45/60 = 0.75 hours. Therefore, the total time is:
2 hours and 45 minutes = 2 + 0.75 = 2.75 hours
Now we can calculate the distance:
Distance = 106 km/h x 2.75 hours = 291.5 km
So the car travels 291.5 km in 2 hours and 45 minutes.
To find the constant speed the car must drive to travel the same distance in 2 hours and 35 minutes, we can use the same formula:
Distance = Speed x time
We know the distance is 291.5 km, and the time is 2 hours and 35 minutes. Again, we need to convert the minutes to hours:
2 hours and 35 minutes = 2 + 35/60 = 2.583 hours
Now we can solve for the speed:
Speed = Distance / time = 291.5 km / 2.583 hours ≈ 113 km/h
Therefore, the car must drive at a constant speed of approximately 113 km/h to travel the same distance in 2 hours and 35 minutes.
I need answerrrrr plssssssss
Answer:441
Step-by-step explanation:
Help quickly again Imao || Which expression can be used to find the number of one-third cup servings in 4 cups?
four times one-third
one-third times four
4 ÷ one third
one third ÷ 4
The right answer is option A, which reads "four times one-third" multiplied by the number of one-third cup servings in four cups.
what is expression ?You can multiply, reduce, add, or take this away in mathematics. An expression is put together as follows: Verb, numeric value, and math operator A mathematical formulation is composed of numbers, variables, and procedures (such as addition, subtraction, multiplication or division etc.) Opposing phrases and phrases is possible. An exponential function is any mathematical declaration that has variables, integers, or an mathematical operation. As an instance, the phrase 4m + 5 consists of both the terms 4m and 5, as well as the supplied equation's variable m, each of which is divided by the mathematical sign +.
given
the expression = " number of one-third cup servings in 4 cups "
= four times one-third
= 4*1/3
The right answer is option A, which reads "four times one-third" multiplied by the number of one-third cup servings in four cups.
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Help quickly its like 12am lol || Which expression can be used to find the number of one-third cup servings in 4 cups?
four times one-third
one-third times four
4 ÷ one third
one third ÷ 4
Answer:
The answer is C). 4 ÷ one third.