Wendy is arranging books on the bookshelves in the school library. The total number of books she arranges is given by the equation b = 12r, where b is the total number of books and r is the number of rows. Each row contains the same number of books.If Wendy arranged 16 rows, she arranged a total of
books.
Answers
b = 12r
where:
b = represents the total number of books
12 = number of books per row
r = number of rows
If Wendy arranged 16 rows, she arranged a total of ___ books.
b = 12r
b = 12(16)
b = 192 total number of books arranged.
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Please help if you know how to do Similarity in Geometry!!
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Answer:
3.3.3.3.33.3.33.3.3.3
Step-by-step explanation:
3
Answers
Circle radius = 2.75 m
People's reach = 1.5m
Get the area of the circle.
A = π r² ⇒ 3.14 * (2.75m)² ⇒ 3.14 * 7.5625m² = 23.75 m²
Get the area of the inner circle:
r = 2.75 m - 1.5 m = 1.25 m
A = 3.14 * (1.25m)² ⇒ 3.14 * 1.5625 m² = 4.91 m²
Subtract the area of the inner circle from the total area to get the area that people can reach.
A = 23.75 m² - 4.91 m² = 18.84 m²
B. 17°F
C. 54°F
D. 86°F
Answers
Boiling water measures 100 degrees in Celsius, and 212 degrees in Fahrenheit. Freezing water measure 0 degrees in Celsius, and 32 degrees in Fahrenheit.
So, if you want to convert Celsius into Fahrenheit, you will need to:
Multiply by 180/100
Add 32
Let's convert 30 degrees Celsius into Fahrenheit.
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54 + 32 = 86
Answers
Answer:
Angle 4 = 145
Step-by-step explanation:
Angle 1 = 180-92 = 88
Angle 2 = 180-123 = 57
Angle 3 = 180 - (88+57) = 35
Angle 4 = 180-35 = 145
Answers
ANSWER: THERE ARE TWO SOLUTIONS TO GET THE ANSWER
THE FIRST ONE IS FACTOR BY GROUPING AND THE SECOND SOLUTION IS SOLVING USING THE QUADRATIC FORMULA.
STEP BY STEP SOLUTION:
FACTOR BY GROUPING
(5x +9) (x -9)
WRITE IN STANDARD FORM
5x^2 - 36x -81
SOLVE USING THE QUADRATIC FORMULA
Solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula.
X= 9, -9/5
I HOPE IT HELP YOU :)
Answers
The system of equations can be used to determine whether the road intersects the boundary of the tower’s signal; y = 2( x - 4 )² + 2 and 5 x + 11 y = 62.
What is the vertex form of a quadratic equation?
If a quadratic equation is written in the form
y = a(x-h)^2 + k
then it is called to be in vertex form.
It is called so because when you plot this equation's graph, you will see the vertex point is on (h,k).
To determine a quadratic function in vertex form:
y = a ( x - 4 )² + 2
4 = a ( 5 - 4 )² + 2
4 = a + 2
a = 2
y = 2 ( x - 4 )² + 2
Then we will determine a linear function in standard form, that passes through the points ( -3, 7 ) and ( 8, 2 ).
7 = -3 m + b
2 = 8 m + b / ·(-1)
7 = - 3 m + b
- 2 = - 8 m - b
5 = - 11 m
m = -5/11,
2 = -5/11 · 8 + b,
b= 2 + 40/11,
b = 62/11
Substitue,
y = - 5/11 x + 62/11 / ·11
11 y = - 5 x + 62
5 x + 11 y = 62
Finally the system of equations is:
y = 2( x - 4 )² + 2
5 x + 11 y = 62
Learn more about vertex form of a quadratic equation here:
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