Answer:
20 Hours = 45 Houses
27 = 12 Hours
Step-by-step explanation:
The time taken to wash 45 houses is 20 hours and the number of houses in 12 hours is 27.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Stuart owns a window-washing business. He can wash the windows on 9 houses in 4 hours.
The time taken to wash 45 houses is,
9 houses = 4 hours
1 house = 4 / 9 hours
45 houses = ( 45 x 4 ) / 9 hours
45 houses = 20 hours
The number of houses in 12 hours,
4 hours = 9 houses
1 hour = 9 / 4 houses
12 hours = ( 9 x 12 ) / 4 houses
12 hours = 27 houses
Therefore, the time taken to wash 45 houses is 20 hours and the number of houses in 12 hours is 27.
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Use the table to describe the locations of the zeros of the quadratic function $f$ .
The zeros are between _ and_ , and between_ and_ .
Answer:
The zeros are between -4 and -3, and between 0 and 1
Step-by-step explanation:
Here, we want to location of the zeros
As we can know, at the zeros of a quadratic function, the y value at those point is zero
So whenever we have y value being zero, we have it that the x value at that point is a zero or root of the quadratic function
Now, looking at the table, we can see that between the point x = -4 and -3; y moved from -2 to 2
For this movement to occur, we must have passed through 0 as we have -1 ,0 and 1 between the numbers as -2 and 2
So obviously, the root is between -4 and -3
Secondly as we can see, f(x) moved from 2 to -2
The numbers between here are 1 , 0 and -1
So definitely the root lies between the x values of 0 and 1
What is the value of f(5) ?
Answer:
243
Step-by-step explanation:
Please helppp not trying to fail
Answer:
A, 1 inch equals 5 feet.
Step-by-step explanation:
To calculate the answer you have to divide
30 ÷ 6 = 5
So, 1 inch represents 5 feet.
Have a great day!
Answer:
the answer is A
Step-by-step explanation:
do 30÷6 and you get 5ft. so, 1 inch represents 5ft
Y'ALL PLEASE PLEASE PLEASE HELP ME I *REALLY* NEED HELP!!!!
all links will be deleted!
The two triangles shown are congruent: ΔABC ≅ ΔXYZ. Based on this information, which of the following is a true statement? Question options:
A)
∠B ≅ ∠Z
B)
∠A ≅ ∠Y
C) ≅
D)
Answer:
AB XY
Step-by-step explanation:
They are congruent side angles
Which figures below are similar?
1 and 2
2 and 3
2 and 4
1 and 4
Answer:
I think it is 1 and 4 :))
Step-by-step explanation:
I hope so it will helpful for u
Answer:
Its 1 and 4
Step-by-step explanation:
I did the quiz
How to do linear functions using the table ?
Answer:
-8 = m-2+b
-2 = m-0+b
4 = m2+b
10 = m4+b
Step-by-step explanation:
You just put them in y = mx+b format
A room is thrice as long as the breadth. It contains 270m^3 of air and the cost of painting its four walls at Rs 15 per m^2 is Rs. 3600, find the cost of carpeting the floor at Rs. 98 per m^2.
Answer: ₹2646
Step-by-step explanation:
Given
The volume of the room is [tex]V=270\ m^3[/tex]
cost of painting the walls is ₹[tex]3600[/tex] at the rate of [tex]15\ m^2[/tex]
So, the area of walls is
[tex]\Rightarrow A=\dfrac{3600}{15}\\\\\Rightarrow A=240\ m^2[/tex]
This the area of 4 walls i.e.
[tex]\Rightarrow 240=2[hl+hb]\\\Rightarrow 120=h[l+b]\\\Rightarrow 120=4bh\quad [\text{length is thrice of width}]\\\Rightarrow 30=bh\qua \ldots(i)[/tex]
The volume of the room is given by
[tex]V=l\times b\times h\\270=3b\times b\times h\\90=hb^2\quad \ldots(ii)[/tex]
Divide (i) and (ii)
[tex]\Rightarrow \dfrac{90}{30}=\dfrac{b^2h}{bh}\\\\\Rightarrow b=3\ m[/tex]
So, the length of the room is
[tex]l=3b\\l=3\times 3\\l=9\ m[/tex]
The area of the floor is
[tex]\Rightarrow A_o=l\times b\\\Rightarrow A_o=9\times 3\\\Rightarrow A_o=27\ m^2[/tex]
The cost of flooring is
[tex]\Rightarrow 27\times 98\\\Rightarrow Rs.2646[/tex]
Increased dumping of sewage into a river caused an increase in parasites that attacked the local fish population. Turtles and birds that live in the same community eat the fish. What would happen between the turtles and birds if the fish population decreased by 50% as a result of the parasitism? *
A increased commensalism
B increased competition
C increased mutualism
D increased predation
Answer: The answer you are looking for is “B increased competition”
Step-by-step explanation: The reason why it is the answer b is when two species eat the same type of food and that said food is decreased as much as 50% there will be a lot of competition that will take place because both species want to survive so it is pretty much anyone for themselves.
Have a nice day!
HELPPP PLEASE!!!!!! Which shows how to determine the volume of the pyramid?
Answer:
A- ⅓(12)(8)(10
Step-by-step explanation:
Volume of a pyramid is ⅓length×width×height
Could someone please help me with this? I would mark you as Brainliest:)
Answer:
a) The table of values represents the ordered pairs formed by the elements of the sequence ([tex]a_{i}[/tex]) (range) and their respective indexes ([tex]i[/tex]) (domain):
[tex]i[/tex] [tex]a_{i}[/tex]
1 6
2 11
3 16
4 21
5 26
b) The algebraic expression for the general term of the sequence is [tex]a(i) = 6 + 5\cdot (i - 1)[/tex].
c) The 25th term in the sequence is 126.
Step-by-step explanation:
a) Make a table of values for the sequence 6, 11, 16, 21, 26, ...
The table of values represents the ordered pairs formed by the elements of the sequence ([tex]a_{i}[/tex]) (range) and their respective indexes ([tex]i[/tex]) (domain):
[tex]i[/tex] [tex]a_{i}[/tex]
1 6
2 11
3 16
4 21
5 26
b) Based on the table of values, we notice a constant difference between two consecutive elements of the sequence, a characteristic of arithmetic series, whose form is:
[tex]a(i) = a_{1} + r\cdot (i - 1)[/tex] (1)
Where:
[tex]a_{1}[/tex] - First element of the sequence.
[tex]r[/tex] - Arithmetic difference.
[tex]i[/tex] - Index.
If we know that [tex]a_{1} = 6[/tex] and [tex]r = 5[/tex], then the algebraic expression for the general term of the sequence is:
[tex]a(i) = 6 + 5\cdot (i - 1)[/tex]
c) If we know that [tex]a(i) = 6 + 5\cdot (i - 1)[/tex] and [tex]i = 25[/tex], then the 25th term in the sequence is:
[tex]a(25) = 6 + 5\cdot (25 - 1)[/tex]
[tex]a(25) = 126[/tex]
The 25th term in the sequence is 126.
f(x)=(x-1)(x+3)(x-4)
Answer:
Do you want the derivative?!
Answer:
Step-by-step explanation:
multiplication: (x-1) * (x+3) * (x-4)
(x-1) * (x+3)
x^2 + 2x - 3
(x^2 + 2x -3)(x-4)
x^3-2x^2-5x+ 12
finding the zeroes:
(x-1) (x+3) (x-4)
x-1:0 x+3:0 x-4:0
+1:1 -3:3 +4: 4
x: 1 x:3 x:4
A rectangle measures 7.08cm by 3.2cm what is the area of the rectangle
Answer:
Measurements= 7.08/3.2
Area of rectangle= 7.08cm×3.2cm
= 22.656 cm(square)
How many styles of sneakers are possible if Jared can choose from high-top or low-top, shoelaces or velcro, and the colors black, white, and red?
i need help with MAD someone pls help
Answer:
wh
at am I helping u wit lol use googl
The mean room temperature from Monday to Saturday is 25oC and the mean room temperature of Saturday and Sunday is 28oC. if the mean room temperature from Monday to Sunday is 26oC, find the room temperature on Saturday
Answer: 24 °C
Step-by-step explanation:
Mean = [tex]\frac{\text{Sum of n observations}}{n}[/tex]
Given: Mean room temperature from Monday to Saturday = 25°C
Sum of temperature from Monday to Saturday = 6 x 25°C [Total 6 days from Monday to Saturday]
= 150°C
Mean room temperature of Saturday and Sunday = 28°C
Sum of temperature of Saturday and Sunday = 2 x28°C
=56 °C
Sum of temperature from Monday to Sunday = 7 x 26°C
= 182 °C
Room temperature on Saturday = 150°C + 56 °C - 182 °C
= 24 °C
Hence, the room temperature on Saturday = 24 °C
help asap pls!!!! i need the questions answered also !!
Answer:
it wold be A
Step-by-step explanation:
What is the percent increase or decrease between $3.25 and $3.64?
Answer:
12% increase
Step-by-step explanation:
Have a good day :)
Choose the correct rule for the graph shown.
A) y = 2x
B) y = 3x
C) y = 2x + 6
D) y = 3x + 3
Answer:
C
Step-by-step explanation:
C i did the test
The correct rule for the graph shown will be;
⇒ y = 3x
What is Equation of line?
The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The graph is shown in figure.
Two points on the graph are (2, 6) nd (3, 9).
Now,
Solve for the correct rule of the graph as;
Since, The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
So, We find the slope of the line as;
Two points on the graph are (2, 6) and (3, 9).
Hence,
m = (9 - 6) / (3 - 2)
m = 3/1
m = 3
Thus, The equation of line in point-slope form passing through the points (2, 6) and (3, 9).with slope 3 is defined as;
⇒ y - y₁ = m (x - x₁)
⇒ y - 6 = 3 (x - 2)
⇒ y - 6 = 3x - 6
⇒ y = 3x
Thus, The correct rule for the graph shown will be;
⇒ y = 3x
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Answer this question to get marked as brainliest!!!!!
Answer:
The answer is F^8
Step-by-step explanation:
9 + 3 = 12
12 - 4 = 8
=f^8
What would it be little help plz
Answer:
the radius would be 5 centimeters
Classify the following expression below.
3x
O A Constant Monomial
B. Linear Monomial
C. Cubic Monomial
D. Quartic Monomial
Answer:
It's a cubic monomial now that it's written 3and a multiplication sign meaning three times which is also 3cubed so the answer is C
please answer this question
Answer:
28 cm
Step-by-step explanation:
volume of a rectangle: l*w*h
the first cuboid: 7*4*2= 56
56=2*1*y
56=2y
28=y
Answer:
28cm
Step-by-step explanation:
Since the two cuboids have the same volume, we use the volume of cuboid one to find the length of side y,
Volume of a cuboid = [tex]length * breadth * height[/tex]
Volume of the cuboid with all sides given is = 7 * 4 * 2 = 56cm cubed.
Now we use that volume to calculate the length y,
56 = 1 * 2 * y
56 = 2y
y = 56/2
y = 28cm
Please someone help!!!
Answer:
Step-by-step explanation:
surface area of cuboid=2h(l+w)
=2*2(12+5)
=4*17
=68 cm^2
Answer:
188 cm²
Step-by-step explanation:
TSA of cuboid = 2(lb + bh + hl)
= 2 {(12*2) + (2*5) + (5*12)}
= 2 (24 + 10 + 60)
= 2 (94)
= 188cm²
Complete the square to find the vertex of this parabola. x2-16y-4x-12=0
Answer:
Step-by-step explanation:
x^2-16y-4x-12=0
Transpose and separate x and y
16y = x^2-4x-12
16y = (x^2-4x+4) -16
16y = (x-2)^2 -16
y = (1/16)(x-2)^2 -1
This means that the vertex is at
(x-2)=0 or x=2
y = -1
=> vertex (2,-1)
HELP DUE SOON!
x = ??
Answer:
Step-by-step explanation:
The crossed chords theorem says that the segments of one chords multiplied together = the segments of the other chord multiplied together.
Equation
x * 8 = 6 * 12
8x = 72 Divide by 8
8x/8 = 72/8
x =9
Renita is riding her bike to school. It takes her 5 minutes to travel half a mile. Renita's school is 2 miles from her house. She plans to leave 30 minutes before school and hopes to make it on time. How long will it take Renita to ride to school?
yo I need help pls answer
Answer:
20 min
Step-by-step explanation:
To go 1 mile it takes her 10 min (5 = 1/2 multiply both sides by 2) and to get to school it would take her 2 miles, so it would take 10 min.
A cube with an edge length of 4 must be filled completely. How many cubic centimeters will be needed
Answer: [tex]64\ cm^3[/tex]
Step-by-step explanation:
Given
The edge length of the cube is 4 cm
If it is to be filled, then the entire volume of the cube is needed
The volume of the cube [tex](\text{edge length})^2[/tex]
[tex]\Rightarrow V=4^3\\\Rightarrow V=4\times 4\times 4\\\Rightarrow V=64\ cm^3[/tex]
Thus, 64 cubic centimeters is required.
Simplify the expression.
-1/2(-5/6 +1/3)
HELPPPO
Answer:
0.25
Step-by-step explanation:
At a high school football game, adult tickets cost $6 each and student tickets cost $3 each. The school collected $978 in ticket sales during a game. Write an equation that relates the number of student tickets sold, x, the number of adult tickets sold, y, and the amount of money collected. Then use your equation to determine how many adult tickets were sold if 122 student tickets were sold.
Answer:
102
Step-by-step explanation:
3x + 6y = 978
x = 122
6y = 978 - 366
y = 612 / 6
y = 102
Help!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Volume is 144ft³
Step-by-step explanation: