A.1.4 × 105
B.0.32 × 103
C.5.62 × 210
D.11.2 × 101
A. 1.4 × is written correctly in scientific notation
0.32 × needs to be 3.2 ×
5.62 × is just wrong its always × 10
11.2 × needs to be 1.12 ×
There is always 1 number before the decimal and that number is always greater than 0 and the number after × is always 10
Answer:
A 1.4 × 105
Step-by-step explanation:
Answer:
z = 131
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Equality Properties
Step-by-step explanation:
Step 1: Define
Identify
z - 49 - 13 = 59
Step 2: Solve for z
Answer:
Step-by-step explanation:
z - 49 - 13 = 59
We need to find z.
solve for z
z - 49 - 13= 59
z - 62 = 59
z - 62 + 62 = 59 + 62
z = 59 + 62
z = 121
Answer:
The dimensions of the bar are width = 4.68099 feet and length = 10.06198 feet
Step-by-step explanation:
A chocolate bar has a rectangular shape, therefore it's area is given by the following formula:
area = width*length
In this case the length is 0.7 feet longer than twice the width, therefore:
length = 2*width + 0.7
Applying the second equation on the first one and using the data from the question we have:
47.1 = width*(2*width + 0.7)
47.1 = 2*width² + 0.7*width
2*width² + 0.7*width = 47.1
width² + 0.35*width = 23.55
width =
width = 4.68099 or width = -5.03099
Since the width can't be negative, it can only be 4.68099 feet.
length = 2*4.68099 + 0.7 = 10.06198 feet.