I need the model and the rest of the question to help you ;-;
Answer written in standard form:
2x + 3y = -4
Answer:
4)
Step-by-step explanation:
the answer to seven less than a number is 4)
Answer:
6 hours
Step-by-step explanation:
70miles divided by 4 hours equals 17.5mph
106miles divided by 17.5 mph = 6 hours
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:

Referring to a standard normal distribution table, and using z = 0.66, we find:

Therefore

The answer is: 0.2546