We have the expression
We have to convert the expression in a single-term expression. We apply the distributive property:
b) We have to substitute five different values into the expressions 5x+2x and 7x-1.
The first expression is equal to 5x+2x=7x.
We then can predict that the difference between 7x and 7x-1 is 1.
For example, for x=2, we have 7x=7*2=14 and 7x-1=7*2-1=14-1=13.
We can calculate if the two expressions can be equal, we write:
There is no value that can make both expressions equal.
Both equations have a difference of 1 for any value of x.
Answer:
8 books
Step-by-step explanation:
If there are 4 books for $10 and Regina has $28, the most Regina can spend is $20. $10 for 4 books so $20 for 8 books.
A box (cube) has all equal edges or sides (s), thus the volume (v) of the cube is:
So since each side or edge around is 3 in, then the length around the square bottom of the box = 4×3 = 12 in
Answer:
Step-by-step explanation:
A trapezoid is generally defined as a quadrilateral with <em>exactly one</em> pair of parallel sides. That means a rhombus is not a trapezoid. (No)
A parallelogram has two pairs of parallel sides. (No)
A rectangle may not have equal-length sides, so a rectangle may not be a rhombus. (No)
A rectangle has two pairs of parallel sides, so a rectangle is always a parallelogram. (Yes)
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Attached is a relationship diagram to give you an idea of how these quadrilaterals are related.
