2x + 5y = 7
2x – 3y = 15
• Multiply one of the equation
by a (-1) to set it up for...
Mathematics, 21.04.2020 22:42 leximae5391
2x + 5y = 7
2x – 3y = 15
• Multiply one of the equation
by a (-1) to set it up for elimina
• Eliminate the variables
whose coefficients are opposit
• Add the other terms.
• Solve the resulting
one-step equation.
Answers: 3
Mathematics, 21.06.2019 20:00
Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 22.06.2019 00:30
Which unit rate is the lowest price per ounce? (5 points) choice a: 6 ounces of chocolate chips for $2.49 choice b: 8 ounces of chocolate chips for $3.32
Answers: 2
Mathematics, 22.06.2019 01:40
At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec
Answers: 2
Mathematics, 22.06.2019 05:00
El piloto de un avión observa la pista de aterrizaje del aeropuerto de chiclayo con un ángulo de depresión de 30°; avanza 600 metros y el nuevo ángulo con qie se observa la pisga de aterrizaje es de 60°. ? a qué altura se encuentra volando el avión?
Answers: 3
Mathematics, 16.04.2021 19:20
English, 16.04.2021 19:20
English, 16.04.2021 19:20
Mathematics, 16.04.2021 19:20
Mathematics, 16.04.2021 19:20
English, 16.04.2021 19:20
English, 16.04.2021 19:20
Mathematics, 16.04.2021 19:20
Mathematics, 16.04.2021 19:20
Mathematics, 16.04.2021 19:20