Answer:
do (3x2+4x+7)+y=0
y=-3x^2-4x-7
A tire has a circumference of 69.1 inches. To the nearest inch, which is the diameter
of the tire?
Answer:
22 inches
Step-by-step explanation:
so to find the diameter you divide the circumference by pi(3.14)
69.1÷3.14=22.006
now rounding that you get 22
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
Learn more about the equation of line visit:
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Nia works at a gas station and earns $15.50 per hour last week , she worked 29 hours .What was her gross pay?
Answer:
$449.5
Step-by-step explanation:
Given data
Earning rate= $15.50 per hour
Number of hours worked = 29 hours
Hence the amount earned is
=15.5*29
= $449.5
Hence the total amount she earned is $449.5
What is the volume of a right circular cone that has a height of 19 feet in a base with a diameter of 18.7 feet round your answer to the nearest 10th of a cubic foot
Answer:
A = 1739.4 cubic feet
Step-by-step explanation:
B = area of base (πr²)
h = height
A = Bh/3
A = [(18.7÷2)²π × 19] / 3
A = (9.35²π×19) / 3
A = 1739.4
Closest to the doll house!!
Answer:
C
Step-by-step explanation:
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)
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
this is area right???
Answer:
Yes
Step-by-step explanation:
So permiter is two*lengths plus 2*width of a shape.
Area is the length times the width.
For examplel if a square has a length of 2, and a width of 3 the permiteter is:
2*2+3*3=
4+9
=
13
On the other hand, area would be:
2*3
=
6
I hope this helps!
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]
The area of the triangle shown is 9 cm2.
3.6 cm
5 cm
3 cm
What is the perimeter of the triangle?
Answer:
11.6
Step-by-step explanation:
A bag with 5 black cubes,3pink cubes, and 2 blue cubes. Find each probability without replacement. What is p(pink,blue)
Answer: 1/6
Step-by-step explanation:
Number of black cubes = 5
Number of pink cubes = 3
Number of blue cubes = 2
Total number of cubes = 10
The probability of picking a pink cube and then a black cubes will be:
p(pink,blue) = 3/10 × 5/9
= 1/6
The probability is 1/6
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)
I need help with this and also the explanation plz
Answer:
The correct answer is 0 or A
Step-by-step explanation:
2/0+2 + 1/5 = 6/0+5
2/2 + 1/5 = 6/5
1 + 1/5 = 6/5
5/5 + 1/5 = 6/5
6/5 = 6/5
i need help with MAD someone pls help
Answer:
wh
at am I helping u wit lol use googl
What is the domain of the relation shown in the graph?
A) {0}
B) {1}
C) {2}
D) θ
Answer:
yea its 2
Step-by-step explanation:
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
A choir teacher is dividing 12 sopranos and 9 altos into singing groups. He wants each group to have the same combination of sopranos and altos, with no singers left over. What is the greatest number of groups he can make?
Answer:
3 groups
Step-by-step explanation:
Sopranos = 12
Altos = 9
Find the highest common factor of 12 and 9
12 = 1, 2, 3, 4, 6, 12
9 = 1, 3, 9
The highest common factor of 12 and 9 is 3
Therefore, the choir teacher can only have 3 groups
12 sopranos / 3 groups
= 4 sopranos per group
9 Altos / 3 groups
= 3 altos per group
Each of the 3 groups Will have 4 sopranos and 3 altos each
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
What is the length of the line?
Answer:
Its D
square root of 37 = 6.0
Step-by-step explanation:
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.
Last week, Ann bought 9 books and 5 movies for a total of $124.
Today, Ann bought 4 books and 21 movies for a total of $318.
Assuming neither item has changed in price, what is the cost of a book in dollars?
Answer:
$6
Step-by-step explanation:
Set up a system of equations where b is the cost of a book and m is the cost of a movie:
9b + 5m = 124
4b + 21m = 318
Solve by elimination by multiplying the top equation by -21 and the bottom equation by 5:
-189b - 105m = -2604
20b + 105m = 1590
Add the equations together, then solve for b:
-169b = -1014
b = 6
So, the cost of a book is $6
An initial amount of $2000 is invested in an account at an interest rate of 5% per year, compounded continuously. Find the amount in the account
years. Round your answer to the nearest cent.
Answer:
$2,100.00
Step-by-step explanation:
Answer:
600 dollars a year
Step-by-step explanation:
I=prt is the formula for simple interest.
2000×0.05×6 = 600
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
What is the percent increase or decrease between $3.25 and $3.64?
Answer:
12% increase
Step-by-step explanation:
Have a good day :)
The lake Washington Floating Bridge in Seattle has a span of about 6566 feet. How many feet more than a mile is this?
Answer:
1286 more feet
Step-by-step explanation:
What is the value of f(5) ?
Answer:
243
Step-by-step explanation:
I'm asking you, please, a little help.
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
Sweet onions are on sale for $0.79 per pound. If an onion weighs 8 oz, how much does it cost to buy 5 onions?
Answer:
a pound is 16 oz. so 2 onions are a pound. meaning 5 onions equal 2 1/2 pounds.
2.5 × 0.79 = $1.975 (about $1.98)