Answer:
width of the rectangle=x=4in and length of the rectangle=11in
Step-by-step explanation:
Let the width of the rectangle be x, then according to the question, length is one less than three times its width that is l=3x-1.
Now, width=b=x and length=l=3x-1, thus
Perimeter of the rectangle= 2(l+b)
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Thus, width of the rectangle=x=4in and length of the rectangle=l=3x-1=3(4)-1=12-1=11in.
Answer:
20
Step-by-step explanation:
The formula for circumference is 2r, where r stands for radius. Therefore, the circumference of this circle can be defined by:
2r
210
20
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Ok, let's find how much does 1 yard of ribbon cost. Let's divide!
Each yard costs $1.50, so let's multiply that by 10
Marci will pay $15 for 10 yards of the ribbon.
If (x - 2) is a factor of 2x³ + x² - 3 then for the value of x = 2 the polynominal is equal zero.
Substitute:
2 · 2³ + 2² - 3 = 2 · 8 + 4 - 3 = 16 + 4 - 3 = 17 ≠ 0
Answer: B) (x - 2) is not a factor.