Answer:
12
Step-by-step explanation:
Answer:
The 3rd one
Step-by-step explanation:
A=<4.60,7.20>
b=<5.10,2.70>
The scalar product, or the inner product, or the dot-product, is by summing the products of the respective directions,
a.b=4.6*5.1+7.2*2.7
=23.46+19.44
=42.9
25% is .25 as a decimal 100*.25=25 so 25% of 100 is equal to 25 because, 25% goes into 100% 4 times so we immediately know that where looking for a number that can go into 100 4 times and it just so happens that 25=25 is true and 100=100 is true so are answer is literally in the question.
Enjoy!=)
Answer:

b. 20 seconds
Step-by-step explanation:
Let
be the distance in miles and
be the time in seconds and
be the speed in miles/sec
Formula for Distance is given as:

Given that:
Distance = 2 miles and
Time = 10 seconds
Putting the values in formula:

<em>Answer a:</em>
Putting the value of
back in the formula to find the <em>direct variation equation </em>for the relationship between time and distance:

<em>Answer b:</em>
Using the above formula and putting
:
