subject
Mathematics, 03.02.2021 18:20 genyjoannerubiera

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equation by 4. Add the first equation to the second equation. Multiply the second equation by Negative 1. Subtract the second equation from the first equation.

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, mikemofun9079
5/6+7/8what is the answer sealsdbdbshd
Answers: 2
image
Mathematics, 21.06.2019 20:30, maggiestevens5321
What is the measure of angle x? answer
Answers: 1
image
Mathematics, 22.06.2019 00:00, johnsonkia873
Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?
Answers: 2
image
Mathematics, 22.06.2019 02:30, adrianmelchor146
An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb. the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.
Answers: 3
You know the right answer?
Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y...

Questions in other subjects:

Konu
Mathematics, 16.04.2020 01:31