Let's rewrite the numbers correctly:
3.2 × 10 ^ 4
3.6 × 10 ^ 2
Now let's do the multiplication step by step:
Step 1:
The step Kevin made:
(3.2 * 3.6) * ((10 ^ 4) * (10 ^ 2))
11.52 * (10 ^ (4 + 2))
11.52 * 10 ^ 6
Step 2:
Rewrite the expression:
11.52 * 1000000
Step 3:
Roll the comma to the right:
11520000
Answer:
the next step that Kevin should apply to his solution is:
Step 2:
Rewrite the expression:
11.52 * 1000000
Step 3:
Roll the comma to the right:
11520000
Answer:
Step-by-step explanation:
1). Given equation is,
2x² - 3x = 6
2x² - 3x - 6 = 0
To find the solutions of the equation we will use quadratic formula,
x = 
Substitute the values of a, b and c in the formula,
a = 2, b = -3 and c = -6
x = 
x = 
x = 
x = 
Therefore, there are two real solutions.
2). Given equation is,
x² + 1 = 2x
x² - 2x + 1 = 0
(x - 1)² = 0
x = 1
Therefore, there is one real solution of the equation.
3). 2x² + 3x + 2 = 0
By applying quadratic formula,
x =
x = 
x = 
x = 
x = 
Therefore, there are two complex (non real) solutions.
Answer:
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Step-by-step explanation:
Billie walks 1.5 miles in half an hour. What is Billies walking speed in miles per hour?
In general speed=Distance over time
so in this case for instance
speed= 1.5 miles over .5 hours= 3 and the miles over hours!
Hope this helps!
Answer: The correct answer is the third choice.
Step-by-step explanation: The question is asking you to look at pieces of data from the graph. The best way to do this question is to look at each question to determine whether the statement is true or false.
In looking at the each choice:
First one - The statement is true. Looking at the graph, a 40 and 50 year old person has the same average rate.
Second - The statement is true. Looking at the graph, you can see a steady decline from a 10 year old to a 20 year old person.
Third - The statement is false. A 10 year old and 20 year old do not have the same rate.
Fourth - The statement is true. A 20 and 30 year old have the same heart rate.
