Answer:
(-1,-2)
because the inverse of (-4,-2) is (-2,-4) so when we simplify both number or when we divide by both numbers by 2 we get (-1,-2)
so the inverse of f(x) _ (-4,-2) is (-1,-2)
What is 2+5 x (56-19)+ 5.5+16-7
2 + 5 x (56-19) + 5.5 + 16 - 7 =
2 + 5 x 37 + 5.5 + 16 - 7 =
2 + 185 + 5.5 + 16 - 7 =
187.5 + 16 - 7 =
203.5 - 7 =
196.5
10. Which symbol correctly compares these numbers: 1/4 _____ 0.50
Answer:
<
Step-by-step explanation:
the arrow pointing to the left symbolises 1/4 (0.25) is smaller than 0.50 (0.5)
Please anyone help me asap with this thank you :))!!???!!!
Answer:
Step-by-step explanation:
Sorry I am in 8th grade
find the real root of the equation x tan x+1=0 by regular falsi method
Answer:
The regular falsi method, also known as the false position method, is a numerical method for finding the root of an equation. It is a variant of the bisection method and is used when the function is not continuous or when the bisection method is too slow.
To find the real root of the equation x tan x + 1 = 0 using the regular falsi method, you will need to:
Choose two initial guesses for the root, x0 and x1.
Evaluate the function at each of the guesses and note their signs.
Use the following formula to calculate the next guess for the root, x2:
x2 = x1 - f(x1) * (x1 - x0) / (f(x1) - f(x0))
Evaluate the function at the new guess and note its sign.
If the sign of the function at x2 is the same as the sign at x0, update x0 to x2 and repeat the process from step 3.
If the sign of the function at x2 is the same as the sign at x1, update x1 to x2 and repeat the process from step 3.
Repeat the process until x2 is close enough to the root or until a maximum number of iterations is reached.
It's important to note that this method is not as efficient as other method like newton-raphson, bisection and secant method.
6(x+1)=24 tape diagram
Answer:
6x+6=24. X=3
Step-by-step explanation:
you multiply whats in the brackets by what's on the outside, if the answer would be 24, it's 18 + 6, meaning X has to be whatever you multiply 6 by to get to 18, which in this case is 3.
2.40x+23.40>318.60 need this for extra credit
Answer:
x>123
Step-by-step explanation:
subtract 23.40 from both sides
2.40x>295.20
divide both sides by 2.40
x>123
Answer:
x>123
Step-by-step explanation:
To solve this you first need to get the x alone to figure out what number it has to be. We do this by subtracting 23.40 from each side:
2.40x+23.40>318.60 turns into
2.40x>295.20
Now we have to divide both sides by 2.40 to get x alone and we get
x>123
So we know that x must be greater than 123
(If you set x=123 you will get 0, so x must be greater than 123)
easy math. please help
Answer: 8π
Step-by-step explanation:
According to the graph, the radius of this circle is 4, and the diameter is 8.
The circumference of a circle equals diameter * π.
Therefore, the answer is 8π
Hi there! I saw someone already posted the answer the question, sorry I was so late in posting this. In case you need more of an explanation, I can help with that. :)
So as you may know, , the circumference of a circle has a formula of 2(pi)radius. The radius of this circle is 4, it's half the diameter. So that would be 2(pi)(4), and, multiplying the like terms first, is 8(pi). That's 25.1327412287. But you could just write that as 8pi. That's B there. :)
Good night!
With a dosage of x cubic centimeters (cc) of a certain drug, the resulting blood pressure B, in millimeters of mercury (mmHg), is approximated by
B(x)=50 + 30500x^2 -183000x^3
Find the maximum blood pressure and the donate at which it occurs
The pressure will be maximum at x = 0.1 cc.
What are functions?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y.The set X is called the domain of the function and the set Y is called the codomain of the function.Functions whose domain are the non - negative integers, known as sequences, are often defined by recurrence relations.Given a function as [tex]${\displaystyle f\colon X\to Y}[/tex] its graph is, formally, the set -[tex]${\displaystyle G=\{(x,f(x))\mid x\in X\}.}[/tex]
Given is that with a dosage of {x} cubic centimeters (cc) of a certain drug, the resulting blood pressure {B} in millimeters of mercury (mm of Hg), is approximated by → B(x) = 50 + 30500x² -183000x³.
In algebra, a cubic equation in one variable is an equation of the form → [tex]$ax^3+bx^2+cx+d=0[/tex].
The given equation is -
B(x) = 50 + 30500x² -183000x³
For the maximum pressure, we can write -
dB/dx = 0
d/dx (50 + 30500x² - 183000x³) = 0
d/dx (50) + d/dx (30500x²) - d/dx (183000x³) = 0
0 + 61000x - 549000x² = 0
- 549000x² + 61000x = 0
Solving the equation, we get -
x = 0 and x = 0.1
{x} cannot be 0. So, we can write -
x = 0.1 cc
Therefore, the pressure will be maximum at x = 0.1 cc.
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One third of a number increased by
a
second number equals 7. One third of
the first number decreased by the
second number is equal to 3. What
are the numbers?
Answer:
the answer is in the picture
Ill give brainliest to who answers
It took Gina 5.4 hours to drive to her mothers house on Tuesday morning. On her return trip on Wednesday night, traffic was heavier, so the trip took her 6 hours. Her average speed on Wednesday was 7 mph slower than on tuesday. What was her average speed on Wednesday
The average speed on Wednesday is 63 mph.
Explain the average speed?Calculating average speed involves dividing the whole distance travelled by the total time it takes to cover that distance.The overall distance the object covers in a given amount of time is its average speed.Average speed is calculated as Total Distance x Total Time.In order to stress the difference between the instantaneous velocity and average speed, velocity is defined as the rate of change of location with regard to time. The average speed of an item may be required in various applications.Always, an object's average velocity is less than or equal to its average speed. This may be understood by recognizing that, unlike displacement, which can change direction as well as its magnitude, distance is always strictly growing.Given data :
Tuesday
time= 5.4 hours
rate = x
Wednesday
time= 6 hours
rate = 7 mph slower than on Tuesday = x - 7
We know that distance= (rate)(time)
So the distance on Tuesday is 5.4 x and the distance on
Wednesday is 6 (x-7)
As we know she drove the same distance so we have that
5.4 x = 6(x-7)
5.4x= 6x - 42
5.4x-6x = -42
-.06x = -42
x = 70
Hence 70 - 7 = 63 mph
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The table shows the relationship
between gallons and quarts. What is the
missing value in the table?
A 4
B 8
C 16
D 20
The missing value in the table is 8 gallons.
What is gallons and quarts?Gallons and quarts are two measurements for volume. A gallon is the larger of the two, and it is a unit of measurement that is used to measure liquids. One gallon is equal to four quarts. A quart is a smaller unit of measurement, and it is also used to measure liquids. One quart is equal to one-fourth of a gallon. Both gallons and quarts are commonly used to measure liquids, such as water, milk, and other beverages. They are also used to measure fuel for cars, such as gasoline and diesel. Gallons and quarts are also used in the kitchen when measuring ingredients or cooking liquids. For example, a recipe might call for two quarts of chicken broth. In addition to measuring liquids, gallons and quarts are sometimes used to measure dry goods such as rice, beans, and other grains. For example, a recipe might call for two quarts of white rice. Knowing how to convert between gallons and quarts is important when measuring liquids or dry goods. One gallon is equal to four quarts, so if a recipe calls for two gallons, it can be converted to eight quarts. Likewise, if a recipe calls for four quarts, it can be converted to one gallon.Solution:
1 gallon = 4 quarts
In the table shows 2 gallons is 8, that means 2 x 4 = 8
4 gallons is 16, which is 4 x 4 = 16.
Likewise, in fourth row, quarts is 32, we have to find gallons.
32/4 = 8 gallons
So, the missing value in the table is 8 gallons.
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The missing value in the table is 8 gallons.
What is gallons and quarts?Gallons and quarts are two measurements for volume. A gallon is the larger of the two, and it is a unit of measurement that is used to measure liquids. One gallon is equal to four quarts.
A quart is a smaller unit of measurement, and it is also used to measure liquids. One quart is equal to one-fourth of a gallon.
Both gallons and quarts are commonly used to measure liquids, such as water, milk, and other beverages.
They are also used to measure fuel for cars, such as gasoline and diesel. Gallons and quarts are also used in the kitchen when measuring ingredients or cooking liquids.
For example, a recipe might call for two quarts of chicken broth. In addition to measuring liquids, gallons and quarts are sometimes used to measure dry goods such as rice, beans, and other grains. For example, a recipe might call for two quarts of white rice.
Knowing how to convert between gallons and quarts is important when measuring liquids or dry goods.
One gallon is equal to four quarts, so if a recipe calls for two gallons, it can be converted to eight quarts. Likewise, if a recipe calls for four quarts, it can be converted to one gallon.
1 gallon = 4 quarts
In the table shows 2 gallons is 8, that means 2 x 4 = 8
4 gallons is 16, which is 4 x 4 = 16.
Likewise, in fourth row, quarts is 32, we have to find gallons.
32/4 = 8 gallons
So, the missing value in the table is 8 gallons.
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What is the value of x?
(5x - 5)°
8x
(6x - 5)
The value of x in the triangle is 10
What is sum of angle in a triangle?A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted by triangle ABC.
The sum of the three angles in a triangle is 180°.
Therefore
(5x - 5)° + 8x + (6x - 5) =180
5x-5+8x+6x-5 = 180
collect like terms
5x+8x+6x-5-5 = 180
19x = 180+10
19x = 190
divide both sides by 19
x = 190/19
x= 10
therefore the value of x is 10
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Write the following statement as an inequality.
"Four times a number is less than ten."
Answer:
Four times two is less that 10. It equals 8
Please help!! Due tomorrow morning
The value of x from the figure is 5±√138
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
From the given figure we can write a proportionality formula
35/x-3=x-7/4
Now apply cross multiplication
35×4=(x-3)(x-7)
140=x²-7x-3x+27
140=x²-10x+27
Subtract 140 on both sides
x²-10x-113=0
When we apply quadratic formula by taking a is 1, b=-10 and c as -113
we get x as 5±√138
Hence, the value of x is from the figure is 5±√138
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PLS HELP 70 points Each month, Ellie spends 4 hours in tap class at her dance studio. If each month she spends 20% of her class time in tap class, what is the total number of hours she spends in dance classes each month? Show your work or explain how you found your answer in complete sentences.
Answer:
She spends 20 hours
Step-by-step explanation:
firstly, divide 4 by 20%
4/20 = 1/5
secondly, multiply 1/5 by 100%
1/5×100 = 20
Therefore, she spends total of 20 hours
Answer:
Ellie spends a total of 20 hours in dance classes.
Step-by-step explanation:
Ellie's total number of hours spent in dance classes is x hours.
According to the question, 20% of x = hours spent dancing.
Therefore, 20/100 * x = 4.
x/5 = 4 x = 20
If an object is dropped from a height of h meters and hits the ground in t seconds, then t = *square root of h/4.9* Suppose that an object is dropped from the top of a building that is 266.56 meters tall. How long does it take to hit the ground? Round your answer to the nearest tenth.
It will take the object 7.4 seconds to hit the ground
How to determine how long it takes the object to hit the ground?
A model function is a way of describing a real-life system or situation using mathematical concepts and language
Since the time for the object is modelled by t = √(h/4.9).
In order to determine how long it takes the object to hit the ground if the object is dropped from the top of a building that is 266.56 meters tall, substitute h = 266.56 into t = √(h/4.9). That is:
t = √(h/4.9)
t = √(266.56/4.9)
t = 7.4 seconds
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6. Gerard takes out a
$2500 loan at 5%
interest each month.
Answer:
1.05.
Step-by-step explanation:
you only earn 5% extra, not 0.5% extra.
Math rowlin Find the simple Interest of $ 2,400.00 at 6% for 5yrs P. a and amount.
Answer:
3,120.00
Step-by-step explanation:
use equation A = P(1 + rt) to find your answer. Or a simple interest calculator works too.
PLEASE HELP!!!!!!!
Given the figure below shows regular hexagon ABCDEF, answer the following questions.
Find the measures of the following angles. Show all work and provide all calculations:
m∠AFB = ___________ (Use your measure for m∠A (120°) and what you know about isosceles triangles)
m∠BFE=____________
All work should be shown.
The measures of the required angles are:
i. m<AFB = 30^o
ii. m<BFE = 90^o
Properties of internal angles of a hexagon.A polygon is a plane figure on a 2 dimensional plane with a minimum of 3 sides. Thus polygons are named with respect to the number of their sides. Examples include; heptagon, hexagon, decagon, etc.
In the given question, we have;
An isosceles triangle has two the measure of its internal angles to be equal.
So that, given that m<A = 120^o, then
m<AFB = m<ABF (property of an isosceles triangle)
Let m<AFB be represented by x, so that;
m<AFB + m<ABF + m<A = 180^o (sum of angle in a triangle)
x + x + 120 = 180
2x = 180 - 120
= 60
x = 60/ 2
= 30
x = 30^o
Thus,
m<AFB = m<ABF = 30^o
Also, m<BFE is a right angle.
So that,
m<AFB = 30^o and m<BFE = 90^o
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There are 80 teachers in the school the headteacher says exactly 89% of the teachers drive to work explain why the headteacher is wrong
Answer:
The headteacher is wrong because exactly 89% of 80 would be 71.2, and there cannot be decimals or fractions of teachers.
Explanation:
To find 89% of 80, we first need to divide 80 by 100 to find 1% of the number.
Doing so gives us 0.8.
Next, we multiply 0.8 by 89, to find 89%.
We get 71.2, and we know that humans cannot be split into fractions or decimals.
That is why the headteacher is wrong.
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Cameron and Cadena go out to eat
for lunch.
Part A
If their food and beverages cost
$22.50 and there is a 9% meals tax,
how much is the bill? Write your
answer to the nearest cent.
Part B
After adding tax and a tip, the
total lunch cost was $28.95. What
percentage of the cost of their food and
beverages did they give as tip? Write
your answer to the nearest percentage
a. The bill when Cameron and Cadena go out to eat for lunch is $24.525
b. The percentage of the cost of their food and beverages that they give as tip will be 18%.
How to calculate the value?From the information, Cameron and Cadena go out to eat for lunch. If their food and beverages cost $22.50 and there is a 9% meals tax, the bill will be:
= $22.50 + (9% × $22.50)
= $22.50 + $2.025
= $24.525
The percentage of the cost of their food and beverages that they give as tip will be:
= (28.95 - 24.525) / 24.525 × 100
= 18%
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I was selling raffle tickets for every two tickets he charges $16 complete the table below showing the number of tickets in the amount charges
Answer:
Step-by-step explanation:
The table below shows the number of tickets and the amount charged based on this pricing structure:
Number of tickets | Amount charged
2 tickets | $16
4 tickets | $32
6 tickets | $48
8 tickets | $64
10 tickets | $80
And so on.
( look at photo) and explain it very simply Ty <3
The expression equivalent to 9⁻⁵,4⁻⁵ is d. 1/36⁻⁵ from the options given in the stated question.
What is the detailed solution and what are exponents?The expression 9⁻⁵,4 is equivalent to subtracting 5 from 9 and 4. This can be simplified as 9-5 = 4 and 4-5 = -1.
So, the expression is 4, -1
"d. 1/36⁻⁵" is not equivalent to 4, -1, but it is a mathematical expression that could be evaluated to a number. The 1/36 is the reciprocal of 36, which is a very small decimal value. And when we subtract 5 from that it will be even smaller negative decimal value.
Exponents are a shorthand way of expressing repeated multiplication of the same number. For example, the number "3 to the power of 2" is written as "3²" and means 3 x 3, or 9. The number "2 to the power of 3" is written as "2³" and means 2 x 2 x 2, or 8. The number being multiplied is called the "base" and the exponent is the number of times the base is multiplied by itself. In the example above, 3 is the base and 2 is the exponent in "3²", and 2 is the base and 3 is the exponent in "2³". In general, aᵇ means a multiplied by itself b times.
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Gina had 56 cup of milk. She used 13 cup for a recipe. How much milk does Gina have left?
Answer: 43
Step-by-step explanation: calculator...i named it jaden
What is 2/3 cup equal to
Mr. Elliot's class created a mural about Martin Luther King in their school.
The mural was 4.75 feet long by 3.25 feet wide. If it took the class 30 minutes to paint 1 square foot of the mural, about how long did it take them to complete the whole thing?
PLEASE SHOW FULL WORK AND explain
THANKS FOR YOUR TIME :)
If it took the class 30 minutes to paint 1 square foot of the mural created about Martin Luther King by Mr. Elliot's class, it will take 7 hours and 43 minutes to complete the task, based on mathematical operations.
What are mathematical operations?Mathematical operations basically involve addition, subtraction, division, and multiplication.
The area of the mural is determined by the multiplication of length and width.
The time taken to complete the whole painting is derived by proportionately equating the time it takes to paint 1 ft² to the time it would take to paint 15.4375 ft².
The length of the mural created = 4.75 feet
The width = 3.25 feet
The area of the mural = 15.4375 ft² (4.75 x 3.25)
The time to pain 1 ft² = 30 minutes
The total time to paint the whole mural = 463.125 minutes (15.4375 x 30)
= 7 hours 43 minutes (463.125/60).
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Find the numbers whose sum is 9, if
three times the first number increased
by two times the second number
equals 22.
A field is in the shape of a square. The length of the field is 5x^3y^5. What is the area of the field in terms of x and y? Write the variables in alphabetical order.
How would I go about solving this? I’m completely lost, help would be very much appreciated.
The area of the square field, given that the length is [tex]5x^3y^5[/tex], is found by squaring the length. The area then becomes [tex]25x^6y^10[/tex].
Explanation:The field is a square, so all the sides have the same length. Given that the length is [tex]5x^3y^5[/tex], the area of a square equals the length of one side squared. So to find the area of the square, you square the length [tex](5x^3y^5)[/tex] which is [tex](5x^3y^5)^2[/tex]
The formula to square a binomial [tex](a+b)^2[/tex] is a² + 2ab + b². To square [tex](5x^3y^5)^2[/tex], you may square each term separately. 5² = 25, (x³)² = [tex]x^6[/tex] and [tex](y^5)[/tex]² =[tex]y^{10[/tex]. Now, multiply these results together: [tex]25x^6y^10[/tex]. This is the area of the field in terms of x and y, written in alphabetical order.
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Answer:
25x⁶y¹⁰
Step-by-step explanation:
You want the area of a square that has a side length of 5x³y⁵.
Rules of exponentsThe relevant rules of exponents are ...
(ab)^c = (a^c)(b^c)
(a^b)^c = a^(bc)
AreaThe area of a square is the square of the side length:
A = s²
For the given square, the area is ...
A = (5x³y⁵)² = (5²)(x³)²(y⁵)² = 25(x⁶)(y¹⁰)
The area of the square field is 25x⁶y¹⁰.
__
Additional comment
An exponent signifies repeated multiplication:
x³ = x·x·x
The square of that will be ...
(x³)² = (x·x·x)·(x·x·x)
The outside exponent tells you the value inside parentheses is multiplied by itself that many times. An exponent can be used to represent that product: x⁶.
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or A fashion photographer needs to hire a stylist to prepare her models. Helen charges $150 for showing up, plus $70 per hour. Miguel charges $200 plus $60 per hour. The photographer realizes that, given the expected duration of her photo shoot, either stylist would cost her the same amount. What would the duration be?
Answer:695
Step-by-step explanation: