3% of what number is 3
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Rhombus has all sides equal. The total amount of paper that will be needed to cover the wall is 396 in².
Given to us
Each rhombus will be 6 inches tall and 4 inches wide.
A.)
The area of each rhombus can be found using the formula,
We know that diagonals of the rhombus are of length 6 in and 4 in. therefore,
Hence, the area of the single rhombus is 12 in².
We know that the wall is 11 feet long, also, 1 foot = 12 inches, therefore,
11 feet = 132 in.
Now, since the wall is 132 in long and the width of the rhombus is 4 in, therefore, the number of rhombi that will be needed,
Hence, the number of rhombi that will be needed is 33.
We know the area of each paper rhombus, also, we know the number of rhombi that will be needed. Therefore,
Hence, the total amount of paper that will be needed to cover the wall is 396 in².
Learn more about Rhombus:
Answer:
Choice A) a² - 9a - 11.
Step-by-step explanation:
Separate the terms by the power of the variable, .
Terms with power 2 on :
- First equation: 6a²;
- Second equation: -5a².
Terms with power 1 on :
- First equation: -17a;
- Second equation: 8a.
Terms with power 0 on , which are also known as constant terms:
- First equation:
;
- Second equation:
.
Apply the distributive property of multiplication in reverse. In other words, factor out terms with the same power and add the coefficients.
Terms with power 2 on :
.
Terms with power 1 on :
.
Constant terms:
.
Add the sum of the individual terms to find the sum of the two polynomials:
.