Answer:
The dimensions of the rectangle:
length: 12cm
width: 15 cm
Step-by-step explanation:
The perimeter of a rectangle is:
perimeter = 2(length+width)
54 = 2(a+b)
a = b - 3
a = legth
b = width
then:
54 = 2((b-3)+b)
54/2 = b-3 + b
27 = 2b - 3
27 + 3 = 2b
30 = 2b
b = 30/2
b = 15
a = b-3
a = 15 - 3
a = 12
Check:
54 = 2(15+12)
54 = 2*27
Answer:
i dont know get good at math
Step-by-step explanation:
<h3>
Answer: Choice D</h3>
Explanation:
The first term has its exponents add to 1+2 = 3
The second term has its exponents add to 1+1 = 2
The third term can be written as -2x^0y^0, and those exponents add to 0
The sums count down: 3, 2, 0
So standard form means we write the terms with the largest degree sums first, then second largest and so on.
Answer:
<h2>y = 2</h2>
Step-by-step explanation:
Answer:
A,B,C,E
Step-by-step explanation:
