Answer:
B
Step-by-step explanation:
Answer:
Multiply each entry by 2!
Step-by-step explanation:
Multiplying a matrix by a constant means to multiply each entry by that constant.
According to that, 2A would be the result of each entry being multiplied by 2.
That is equal to 

Hence, the answer.
Answer:
60 lightbulbs
Step-by-step explanation:
1500 * 0.04 = 60
Answer:
a. He used an incorrect time ratio converting hours to minutes.
d. He incorrectly concluded that she is not running fast enough.
Step-by-step explanation:
Looking at the Coach's method of conversion when converting time, he assumed that an hour had 15 minutes instead of 60 minutes. He therefore did not use the correct time ratio to convert hours to minutes.
The coach's calculations yielded an answer of 34 ft/s. This is way faster than 8.8 ft/ s so his deduction that she was not running fast enough to beat her fastest time is incorrect because at that inhumane speed, she did.
When we eliminate y,(by adding here), resulting equation would be:
2x - 14 =0
So, x = 7
You can find the value of y as well, by substituting the value of x,
7 - y -8 = 0
y = -1
Hope this helps!