Answer:
A
Step-by-step explanation:
5x=10.5
x=2.1
When you divide by numbers with the same base, the exponents subtract
1/5 - 3/5 = -2/5 as exponent
It would be 7^-2/5
The third response is correct
Answer:
(40+2b)cm
Step-by-step explanation:
Complete question
Jimmy is putting up a fence around his rectangular garden. One side of the garden is 20 feet long, and b represents the width, How much fencing material will he need.
To get the amount of fencing material needed, we will find the perimeter of the fence
perimeter of the fence = 2(L+W)
L is the length
W is the width
Given
Length = 20feet
Width = b feet
perimeter of the fence = 2(20+b)
perimeter of the fence = 2(20) + 2b
perimeter of the fence = 40+2b cm
Hence the amount of material needed will be (40+2b)cm
Answer: A. 30+(-12)+70
Step-by-step explanation:
Commutative property of addition is given by : a+b = b+a , where a and b can be any expression of real numbers.
It basically changes the order of the so that simplification of any expression becomes easier.
In A. we use this property as
30+(-12)+70 = 30+[(-12)+70]
= 30 + [70+(-12)] [we switched order of (-12) and 17]
= 30+70-12
= 100-12
= 88
The rest of the expression already arranged accordingly, there is no need to apply commutative property to change the order of the numbers.
So the correct option is A. 30+(-12)+70.
Answer:
The 4th term is 7
Step-by-step explanation:
we have
step 1
Find C(2)
For n=2
step 2
Find C(3)
For n=3
step 3
Find C(4)
For n=4
therefore
The 4th term is 7
