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What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?
General
4 months ago
Solve 4^x+2 = 12 for x using the change of base formula log base b of y equals log y over log b.
General
4 months ago
If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc?
General
4 months ago
HURRY I WILL MARK BRAINLIEST2. Your bank account has -$15 in it. You deposit $5 per day.(a) How much money is in your account after 5 days? Show your work.(b) After you have made all of your deposits, you withdraw $2 a day until your account balance is $0. How many days will you withdraw $2? Show your work.Answer:
General
4 months ago
What is the surface area of the solid figure represented by the net? A. 338.24 square centimeters B. 373.80 square centimeters C. 444.92 square centimeters D. 747.6 square centimeters
General
4 months ago
Which of the following set of quantum numbers correctly describes an electron in a 5d orbital? A) n = 5, l = 3, ml = +3, ms = +1/2 B) n = 5, l = 2, ml = 0, ms = +1/2 C) n = 5, l = 2, ml = +3, ms = +1/2 D) n = 5, l = 3, ml = +2, ms = +1 E) n = 5, l = 2, ml = +2, ms = +1
General
4 months ago
W hich of these scales is equivalent to the scale 1 cm to 5 km? Select all that apply. (Lesson 1-11) A. 3 cm to 15 km D. 5 mm to 2.5 km B. 1 m m to 150 km E. 1 mm to 500 m C. 5 c m to 1 km IF ANYONE ANSWERS THIS IN 5 MINUTES YOU WILL GET BRAINLIEST
General
4 months ago
The probability distribution of a discrete random variable X is given by: P(X = −1) = 1 5 ,P(X = 0) = 2 5 and P(X = 1) = 2 5 (a) Compute E[X]. (b) Determine the probability distribution Y = X 2 and use it to compute E[Y ]. (c) Determine E £ X 2 ¤ using the change-of-variable formula. (You should match your answer in part (b). (d) Determine V ar (X).
General
4 months ago
Find equations of the following.3(x − z) = 12arctan(yz), (1 + π, 1, 1)(a) the tangent plane (b) parametric equations of the normal line to the given surface at the specified point. (Enter your answer as a comma-separated list of equations. Let x, y, and z be in terms of t.)
General
4 months ago
Ramona used the regression equation y = 444x - 21.29, Ramona determined that her answer was incorrectwhere x represents height and y represents shoe size, to because a man who is -17.52 inches tall does notpredict the approximate height of a man who wears amake any sense. What was Ramona's mistake?size 8.5 shoeShe substituted the 8.5 for the wrong variable.1. y = 444(8.5) - 21.29She should have added 444 and 8.5.2 y = 3.774 - 21.29The value for y should be positive.3 y=-17.52The solution of -17.52 should be the shoe size
General
4 months ago
Math homework that I have no clue how to even approach? Help please.If a stone is thrown down at 130 ft/s from a height of 1,450 feet, its height after t seconds is given by s = 1,450 − 130t − 16t^2.(a) Find its average velocity over the period [1, 4].=___ft/s(b) Estimate its instantaneous velocity at time t = 4. =___ ft/s
General
4 months ago
Apply the Pythagorean Theorem to find the distance between points A and B.
General
4 months ago
Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a the past year. Suppose a sample of 100 major league players was taken this year. What is the approximate probability that the mean salary of the 100 players was less than $3.0 million?
General
4 months ago
An advertisement is on a flyer that has a thickness of 8.2 x 10^-5 meters. Each measurement below is the thickness of a stack of flyers. Drag each measurement to correct stack
General
4 months ago
A stone fell from the top of a cliff into the ocean.In the air, it had an average speed of 16 m/s In the water, it had an average speed 3m/s before hitting the seabed. The total distance from the top of the cliff to the seabed is 127 meters, and the stone's entire fall took 12 seconds.How long did the stone fall in the air and how long did it fall in the water?The stone fell in the air for____ seconds and fell in the water for ____ seconds.
General
4 months ago
(Linear System word problem) A total of 27 coins, in nickels and dimes, are in a wallet. If the coins total $2.15, how many of each type of coin are there?
General
4 months ago
PromptExplain how you have varying degrees of control over the three types of income, and how much control you have over each.
General
4 months ago
A pension fund manager decides to invest a total of at most $3535 million in U.S. Treasury bonds paying 66% annual interest and in mutual funds paying 99% annual interest. He plans to invest at least $55 million in bonds and at least $1515 million in mutual funds. Bonds have an initial fee of $100 per million dollars, while the fee for mutual funds is $200 per million. The fund manager is allowed to spend no more than $66000 on fees. How much should be invested in each to maximize annual interest? What is the maximum annual interest?
General
4 months ago
Provided below are summary statistics for independent simple random samples from two populations. Preliminary data analyses indicate that the variable under consideration is normally distributed on each population. Decide whether use of the pooled t-test and pooled t-interval procedure is reasonable. x overbar 1equals485.6, s 1equals44.3, n 1equals49, x overbar 2equals390.1, s 2equals61.3, n 2equals31.Is use of the pooled t-test and pooled t-interval procedure reasonable or not reasonable? A. Reasonable B. Not reasonable
General
4 months ago
Proving Segment Relationships1. FAMILY Maria is 11 inches shorter than her sisterNancy. Brad is 11 inches shorter than his brotherChad. If Maria is shorter than Brad, how do theheights of Nancy and Chad compare? What if Mariaand Brad are the same height?
General
4 months ago
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