EXPLANATION:
To get the solution of the simultaneous equation, using the elimination method:
We will have the following steps:
Step 1:
Write the two equations:
Step2: Subtract the two equations:
Step 3: Simplify the expression
Step 4: Substitute x=-2 into the formula:
Therefore, the answer is
Thus,
Option B is correct
Answer:
19.3 m²
Steps:
Area of octagon : 2 ( 1 + √2 ) * a² ........ <u>where a is length of each side</u>
using the formula: 2 ( 1 + √2 ) * 2²
: 2 ( 1 + √2 ) * 4
: ( 8 + 8√2 ) m²
: 19.3 m² ...............our final answer in three significant fig
Answer:
b) 50
Step-by-step explanation:
you can multiply all of the answers by .7 (70% converted into a decimal) to see which one matches 35 miles.
24.5(.7) = 17.15 INCORRECT
50(.7) = 35 CORRECT
59.5(.7) = 41.65 INCORRECT
200(.7) = 140 INCORRECT
Answer:
5
Step-by-step explanation:
A coefficient is a number used to multiply a variable. in "5a" 5 is the coefficient.
