Answer:
Slope=3
Step-by-step explanation:
Slope formula y2-y1/x2-x1
This makes -4-5/0-3= -9/-3=3.
The slope is 3
3/5x - 2/3y = 5 in standard form
Answer:
9x - 10y =75
Step-by-step explanation:
-5 1/4 -(-7 1/2) simplify
really fast pleas
9. If DF = 61 and EF = 18, find DE.
10. If DE=4x-1, EF = 9, and DF = 9x-22, find
the value of x.
D
11. If DF = 78, DE = 5x-9, and EF = 2x + 10, find EF.
12. If DE= 4x + 10, EF=2x-1, and DF = 9x-15, find DF.
The obtained answers for the given line segments are as follows:
9. The value of the line segment \(\overline {DE}\) = 43; Where \(\overline { DF}\) = 61 and \(\overline {EF}\)
10. The value of x is 6; Where \(\overline {DE}\) = 4x - 1, \(\overline {EF}\) = 9, and \(\overline { DF}\) = 9x - 22
11. The value of line segment \(\overline {EF}\) = 32; Where \(\overline { DF}\) = 78, \(\overline {DE}\) = 5x - 9, and \(\overline {EF}\) = 2x + 10
12. The value of line segment \(\overline { DF}\) = 57; Where \(\overline {DE}\) = 4x + 10 \(\overline {EF}\) = 2x - 1, and \(\overline { DF}\) = 9x - 15.
What is a line segment?A line segment is a part of a line formed by infinite points with two endpoints at both ends. The line segment is represented by the two endpoints.A line segment has a finite length.Calculation:The calculation for the required values is as follows:
9. Finding \(\overline{DE}\):
It is given that,
\(\overline{DF}\) = 61; \(\overline{EF}\) = 18
From the figure, we can write
\(\overline{DF} = \overline{DE} + \overline{EF}\)
On substituting the given values,
61 = \(\overline{DE}\) + 18
⇒ \(\overline{DE}\) = 61 - 18
∴ \(\overline{DE}\) = 43
10. Finding x:
It is given that,
\(\overline {DE}\) = 4x - 1, \(\overline {EF}\) = 9, and \(\overline { DF}\) = 9x - 22
From the figure we have
\(\overline{DF} = \overline{DE} + \overline{EF}\)
On substituting,
(9x - 22) = (4x - 1) + 9
⇒ 9x - 22 = 4x - 1 + 9
⇒ 9x - 4x = 8 + 22
⇒ 5x = 30
∴ x = 6
11. Finding \(\overline{EF}\):
It is given that,
\(\overline { DF}\) = 78, \(\overline {DE}\) = 5x - 9, and \(\overline {EF}\) = 2x + 10
From the figure we have
\(\overline{DF} = \overline{DE} + \overline{EF}\)
On substituting,
78 = (5x - 9) + (2x + 10)
⇒ 78 = 5x - 9 + 2x + 10
⇒ 7x + 1 = 78
⇒ 7x = 78 - 1
⇒ 7x = 77
∴ x = 11
On substituting x = 11 in \(\overline {EF}\) = 2x + 10; we get
\(\overline {EF}\) = 2(11) + 10
= 22 + 10
= 32
Therefore, the value of the line segment \(\overline {EF}\) is 32.
12. Finding \(\overline {DF}\):
It is given that,
\(\overline {DE}\) = 4x + 10 \(\overline {EF}\) = 2x - 1, and \(\overline { DF}\) = 9x - 15
From the figure we have
\(\overline{DF} = \overline{DE} + \overline{EF}\)
On substituting,
(9x - 15) = (4x + 10) + (2x - 1)
⇒ 9x - 15 = 4x + 10 + 2x - 1
⇒ 9x - 15 = 6x + 9
⇒ 9x - 6x = 9 + 15
⇒ 3x = 24
∴ x = 8
On substituting x = 8 in \(\overline { DF}\) = 9x - 15; we get
\(\overline { DF}\) = 9(8) - 15
= 72 - 15
= 57
Therefore, the value of the line segment \(\overline { DF}\) is 57.
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Currently, the number of pizzas sold by a restaurant is 80. It is estimated that the number of pizzas sold will increase by 5% each hour. Find the total number of pizzas sold at the end of 5 hours.
Round your answer to the nearest whole number if necessary.
The total number of pizzas sold at the end of 5 hours would be = 520.
How to calculate the total number of pizzas sold by the restaurant?To calculate the total number of pizzas sold, the following steps needs to be taken as follows;
The current total number of pizza sold by the restaurant = 80
The percentage increase of the number sold = 5% of 80
That is ; 5/100 × 80
= 400/100 = 4
The total number of hours spent = 5 hours
The additional number of pizzas = 5×4 = 20
Therefore,the total number of pizzas = 500+20 = 520.
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What is the solution to this inequality? 7x +18 > -3
x<-3
x<3
x>-3
x>3
Step-by-step explanation:
7x + 18 > -37x > -3 -187x > -21x > -21÷7x > -3MARK ME AS BRAINLISTPLZ FOLLOW METhe first shelf on Hannah’s bookshelf hoods an equal number of fiction and nonfiction. If Hannah’s selects 5 books randomly, what is the probability that 3 of the books will be fiction and 2 will be nonfiction
Answer:
The correct option is (D) one of the non-fiction books on the bottom shelf and a second non-fiction book from the bottom shelf.
Step-by-step explanation:
What is probability?
Probability is the branch of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely it is that a claim is true.
To find which 2 books describe a pair of dependent events:
A pair of two dependent events are simply those in which the selection of the second item is contingent on the selection of the first item, causing the probability to change.
Because the sample size is lowered when the initial item is taken without replacement, choosing the exact same item reduces the chance.
Now, in regard to the question, this means that for two of the occurrences to be independent, they must be on the same shelf and of the same type of book, so that the second book cannot be selected until the first one is.
Option D, where both books are on the same shelf and are of the same type, is the only option that fulfills this requirement.
Therefore, the correct option is (D) one of the non-fiction books on the bottom shelf and a second non-fiction book from the bottom shelf.
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Find the cost of purchasing 30 roses. Show how you know.
Answer:
90 dollars
Step-by-step explanation:
so first you need to solve for the rate of change or slope with the equation
y 2 - y1 / x2 - x1
here i think the independent variable is number of roses since the dollars rely on the number of roses (sorry for my explanation its kinda bad)
so since number of roses is independent we know that it is x and that the price in dollars is y
anyways we have to substitute two values into the equation
y 2 - y1 / x2 - x1
(3, 9) (6, 18)
18 - 9 / 6 - 3
9 / 3
3
knowing that the rate of change is 3, to find the price for 30 roses all we have to do is:
let p be price
p = 3x
p = 3(30)
p = 90 dollars
i need help to write and solve equationsToni can carry up to 18 lb in her backpack. Her lunch weighs 1 lb, and her books (b) weights 3 lb each. How many books can she carry in her backpack?
Calling b to the number of books, the weight of Toni's backpack is:
1 + 3b
Toni can carry up to 18 lb, then:
1 + 3b ≤ 18
Solving for b:
3b ≤ 18 - 1
3b ≤ 17
b ≤ 17/3
b ≤ 5.67
Then, she can carry 5 books
Answer:
5 books would weigh 15 lb if she added 6 she couldnt carry her lunch
Step-by-step explanation:
Jo flips a coin {H, T}; then rolls a 6-sided die {1, 2, 3, 4, 5, 6}. which of the following outcomes are in the sample space of this experiment?
a. 4
b. 8
c. 12
d. 36
Consider we need to find the number of elements in the sample space.
Given:
Jo flips a coin {H, T}; then rolls a 6-sided die {1, 2, 3, 4, 5, 6}.
To find:
The number of elements in the sample space of this experiment.
Solution:
Jo flips a coin {H, T}; then rolls a 6-sided die {1, 2, 3, 4, 5, 6}.
So, the sample space is
S = {H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6}
So, the number of elements in the sample space is 12.
Therefore, the correct option is C.
Answer:
12
Step-by-step explanation:
3x-5 (2x+6) = 4(2x+3)+18
Answer:
= − 4
Step-by-step explanation:
The Carousel on the National Mall has 4 rings of horses. Kiran is riding on the inner ring, which has a radius of 9 feet. Mai is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is.
One rotation of the carousel takes 12 seconds. How much faster does Mai travel than Kiran? (Round to the nearest tenth)
Mai travels abοut 4.2 feet per secοnd faster than Kiran.
What is circumference?Circumference is the distance arοund the οutside οf a circle. It is the length οf the bοundary that enclοses a circle. Tο find the circumference οf a circle, yοu can use the fοrmula C=2πr, where "C" represents the circumference, "π" is a mathematical cοnstant (apprοximately equal tο 3.14159), and "r" is the radius οf the circle (the distance frοm the center οf the circle tο its edge). Sο, the circumference οf a circle is directly prοpοrtiοnal tο its radius. This means that if yοu dοuble the radius οf a circle, its circumference will alsο dοuble.
The circumference οf Kiran's ring is:
C1 = 2πr1 = 2π(9 ft) ≈ 56.55 ft
The circumference οf Mai's ring is:
C2 = 2πr2 = 2π(r1 + 8 ft) = 2π(17 ft) ≈ 106.81 ft
Therefοre, Mai travels a distance οf 106.81 - 56.55 = 50.26 feet mοre than Kiran in οne rοtatiοn.
The time it takes fοr οne rοtatiοn is given as 12 secοnds. Therefοre, the speed οf Kiran in feet per secοnd is:
V1 = C1 / t = 56.55 ft / 12 s ≈ 4.71 ft/s
And the speed οf Mai in feet per secοnd is:
V2 = C2 / t = 106.81 ft / 12 s ≈ 8.90 ft/s
The difference in their speeds is:
V2 - V1 = 8.90 ft/s - 4.71 ft/s ≈ 4.2 ft/s
Therefοre, Mai travels abοut 4.2 feet per secοnd faster than Kiran.
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5(10v-8w+4) as a distributive property
Using distributive property, the solution to the given expression is: 50v - 40w + 20
How to use distributive property?The Distributive Property is a term which is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses.
For example:
4(3 + 5)
According to the distributive property, you first have to multiply out the bracket to get:
4*3 + 4*5 = 12 + 20
= 32
Thus:
5(10v - 8w + 4) = (5 * 10v) - (5 * 8w) + (5 * 4)
= 50v - 40w + 20
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You have a torn tendon and are facing arthroscopic surgery to fix it. The surgeon explains the risks of the surgery. Infection occurs in 2% of all cases, and the repair fails in 11% of the cases. 0.5% of the time the repair fails and infection occurs. What is the probability that the operation is successful and infection-free
Answer:
The probability that the operation is successful and infection-free is 0.9831
Step-by-step explanation:
Let the infections be denoted by I and the fails be denoted by F then
P(I)= 2% = 0.02
P (F)= 11% = 0.11
P(I∩F)= 0.5 % = 0.005
First we find the probability of infection or fail by using the general rule of addition
P (infection or repair) = P(I) +P (F) - P(I∩F)
= 0.02 + 0.11 -0.005
= 0.125
Now using the complement method to find the no infection or repair successful
P(no infection or repair successful)= 1- P (infection or repair)
= 1- 0.125= 0.875
P( Successful) = 1- P (F)= 1- 0.11= 0.89
The probability that the operation is successful and infection-free is given by the conditional probability
P( Successful given that no infection) = P(no infection or repair successful)/P(successful)
P( Successful given that no infection) = 0.875/0.89= 0.9831
What is the solution set of 6x-24 =0? x^2
The solution to the Quadratic equation x², when x satisfies the equation 6x - 24 = 0, is x²= 16.
What is Quadratic equation?A quadratic equation is a polynomial equation of the second degree, meaning it contains one or more terms that involve a variable raised to the power of two. The standard form of a quadratic equation is:
ax^2 + bx + c = 0,where a, b, and c are constants, and x is the variable.
According to given informationThe given equation is 6x - 24 = 0.
To solve for x, we can isolate x on one side by adding 24 to both sides of the equation:
6x - 24 + 24 = 0 + 24
6x = 24
Then, we can solve for x by dividing both sides by 6:
6x/6 = 24/6
x = 4
Therefore, the solution to the equation 6x - 24 = 0 is x = 4.
Now, to solve for x², we can simply substitute x = 4 into the equation x²:
x² = 4²
x^2 = 16
Therefore, the solution to the equation x², when x satisfies the equation 6x - 24 = 0, is x² = 16.
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The following information was obtained from the accounting records of Letty Stores for the financial year ended 30 June 2021:
R
Inventory (1 July 2020)
100 000
Sales
600 000
Purchases
400 000
Sales returns
2 000
Purchases returns
3 000
Drawings: Bank
1 000
Inventory (30 June 2021)
120 000
Additional information:
1. On 29 June 2021, the owner took inventory with a cost price of R20 000 for own use. This transaction has not yet been recorded.
The entity uses the periodic inventory control system.
Required:
Use the information provided above to calculate the cost of sales for the year ended 30 June 2021.
Answer:
333234
Step-by-step explanation:
333234$ for the next 4 years and the ecvation is 69$+-2$
Divide.
5892 ÷ 18
U don't need to rush bc i do online school lol but PLZZ help
Answer:
327.33
Step-by-step explanation:
the .33 goes on and on and on
Answer:
327.3(repeating)
Step-by-step explanation:
used a calculator
Which equation has a slope of 2 and y-intercept of -3
y = 2x -3
fhfjdydtsfxbnpurwsgh
Which inequality represents the situation described below?
The distance, d, is less than 200 miles.
A. d ≥ 200
B. d > 200
C. d ≤ 200
D. d < 200
Hello!
The distance, d, is less than 200 miles.
B. d > 200
Why is the atmosphere heated unevenly by the sun
Answer:
The answer is due to uneven heating of the Earth by the Sun.Since the center of the Earth gets more sunlight, it is consistently hotter than other parts of the Earth. Sunlight hits the equator with a more direct angle leading to increased temperatures. When air is hot, it rises.
Step-by-step explanation:
Help me pleasee! I dont understand this!
When families play “fill and dump” activities and explore large and small objects with the children, they extend learning in the
Number and Quantity strand.
Measurement and Comparison strand.
Geometry and Spatial Thinking strand.
Mathematical Reasoning strand.
Submit
The correct option is the Measurement and Comparison strand.
When families play "fill and dump" activities and explore large and small objects with children, they are likely extending learning in the Measurement and Comparison strand of the mathematics curriculum. This strand involves understanding and using concepts of size, weight, capacity, and length to compare, measure, and describe objects and events. Activities like filling and dumping containers of different sizes and comparing the quantities of objects can help children develop their understanding of these concepts and their ability to compare and measure objects.
The Number and Quantity strand involves understanding and using numbers and number concepts to count, compare, and describe quantities. The Geometry and Spatial Thinking strand involves understanding and using geometric concepts and spatial reasoning to describe, analyze, and compare shapes and spatial relationships. The Mathematical Reasoning strand involves using logical thinking and problem-solving skills to make sense of mathematical ideas and solve problems. All of these strands are important for children's overall mathematical development and can be supported through a variety of activities and experiences.
HELP WILL GIVE BRAINLIEST
The graphs of the functions f(x)-40¹, 6x-4(1-0).
400-4 (1+1)
are shown below.
If the graph of \(f(x) = 4e^{0.1x}\) is blue, then the graph of \(f(x) = 4(1+\frac{0.1}{0.5} )^{0.5x}\) is: C. red.
What is an exponential function?In Mathematics and Geometry, an exponential function can be modeled by using this mathematical equation:
\(f(x) = a(b)^x\)
Where:
a represents the initial value or y-intercept.x represents x-variable.b represents the rate of change, common ratio, decay rate, or growth rate.For the rate of change of the blue exponential function \(f(x) = 4e^{0.1x}\), we have the following:
b = \(e^{0.1}\)
b = 1.11
For the rate of change of this exponential function \(f(x) = 4(1+\frac{0.1}{0.5} )^{0.5x}\), we have the following:
b = 1 + 0.1/0.5
b = 1.2
Therefore, this exponential function \(f(x) = 4(1+\frac{0.1}{0.5} )^{0.5x}\) is represented by the red line on the graph.
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Jared wants to paint his room. The dimensions of the room are 12 feet by 15 feet, and the walls are 9 feet tall. There are two windows, each with dimensions 6 feet by 5 feet. There are two doors, each with dimensions 30 inches by 6 feet. If a gallon of paint covers about 350 square feet, how many gallons of paint will he need to put two coats of paint on the wall? List the steps to solve the problem and solve.
Answer:
1 ft = 12 in
1 in = (1/12) ft
30 in = (30/12) ft
30 in = 5/6 ft
The area of the surface that Jared needs to paint is:
2(12*9 + 15*9) - 2(5*6 + (5/6)*6) = 416 ft^2
Step-by-step explanation:
Answer:
3 gallons of paint
Step-by-step explanation:
Steps you have to take,
identifying the area of the 4 walls subtracting the windows and doors from the area.finding out how many gallons of paint it will take to cover the total area twiceFormula:
\((A = lw)(2) + (A = lw)(2) - (A = lw)(2) - (A = lw)(2)\)
\((wall 1)(2) + (wall 3)(2) - (window)(2) - (door)(2)\) ↑
door = 30in by 6ft
30in to feet = 2.5 feet
Lets start solving.\((A = 12(9))2 + (A = 15(9))2 - (A = 6(5))2 - (A =2.5(6))2\)
\((A = 108)2 + (A = 135)2 - (A = 30)2 - (A = 15)2\)
\((A = 216) + (A = 270) - (A = 60) - (A = 30)\)
\(combine\\(A = 486) - (A= 90)\\(A = 396)\)
two coats = A(2)396(2) =
792sq ft
We know that one gallon covers 350sq ft
792/350 =
2.26 gallons
(can't have .26 of a gallon so we round up)
it takes 3 gallons of paint Jared's roomThe 5th degree polynomial has relative maximum at x=___ and x=___
The 5th degree has relative maximum at x=___ and x=____
While working a summer job, London earned $182 in 7 hours. Find the
rate of change.
Answer:
31hr
Step-by-step explanation:
What would be the equation for a line that is perpendicular to a line of Y = 3X +2
The equation of the perpendicular line is y = -1/3x
How to determine the perpendicular line equation?From the question, we have the following parameters that can be used in our computation:
y = 3x + 2
The equation of a line can be represented as
y = mx + c
Where
Slope = m
By comparing the equations, we have the following
m = 3
This means that the slope is 2
The slopes of perpendicular lines are opposite reciprocals
This means that the slope of the other line is -1/3
The equation of the line is then calculated as
y = mx
Where
m = -1/3
So, we have
y = -1/3x
Hence, the line has an equation of y = -1/3x
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allprime numbers are not divisible by two true or false
Answer:
False
Step-by-step explanation:
This is false although most prime numbers are not divisible two, but there is one exception to this... the number 2! The number 2 is prime and is divisible by 2. All other prime numbers cannot be divisible by 2 otherwise they would not be prime as prime numbers are only divisible by 1 and the number it self (this excludes 1).
in a bag there are red and green balls in the ratio of 2:7. if there are 14 red balls,how many green balls are there
For the information given in the statement you have
\(\frac{\text{ number of red balls}}{\text{ number of green balls}}=\frac{2}{7}\)Then
\(\frac{2}{7}=\frac{14\text{ red balls}}{x\text{ green balls}}\)Solving for x
\(\begin{gathered} \frac{2}{7}=\frac{14}{x} \\ \text{ Apply cross multiplication} \\ 2\cdot x=14\cdot7 \\ 2x=98 \\ \text{ Divide by 2 into both sides of the equation} \\ 2x=\frac{98}{2} \\ x=49 \end{gathered}\)Therefore, there are 49 green balls.
The temperature in a hotel is 21 °C.
The temperature in the hotel is 26,7°C warmer than at the top of the mountain.
The temperature at the top of the mountain is 3.2°C colder than at the bottom of the mountain.
Work out the temperature at the bottom of the mountain.
The temperature at the bottom of the mountain is 50.9 °C.
Let's work through the given information step by step to find the temperature at the bottom of the mountain.
The temperature in the hotel is 21 °C.
The temperature in the hotel is 26.7 °C warmer than at the top of the mountain.
Let's denote the temperature at the top of the mountain as T_top.
So, the temperature in the hotel can be expressed as T_top + 26.7 °C.
The temperature at the top of the mountain is 3.2 °C colder than at the bottom of the mountain.
Let's denote the temperature at the bottom of the mountain as T_bottom.
So, the temperature at the top of the mountain can be expressed as T_bottom - 3.2 °C.
Now, let's combine the information we have:
T_top + 26.7 °C = T_bottom - 3.2 °C
To find the temperature at the bottom of the mountain (T_bottom), we need to isolate it on one side of the equation. Let's do the calculations:
T_bottom = T_top + 26.7 °C + 3.2 °C
T_bottom = T_top + 29.9 °C
Since we know that the temperature in the hotel is 21 °C, we can substitute T_top with 21 °C:
T_bottom = 21 °C + 29.9 °C
T_bottom = 50.9 °C
Therefore, the temperature at the bottom of the mountain is 50.9 °C.
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True or False. To convert 5 yards to inches, you would multiply 5 by 12.