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What is the percent of change if I decrease 50 to 45?
General
2 months ago
Determine algebraically if the following equations represent parallel or perpendicular lines and justify your answer. : -2x+5y=-10 and -4y-10x=12
General
2 months ago
What percent of 28 is 56?
General
2 months ago
Given that A ( 5, 4), B(-3, -2 ) and C(1, -8) are the vertices of a triangle ABC, find the slope of altitude BM
General
2 months ago
If Joe bought $325.00 worth of school supplies and had to pay 15% sales tax. How much did Joe pay after tax?
General
2 months ago
A coordinate plane with a line passing through (0, negative 3), (2, 0), and (4, 3). Which equation represents the graphed function? –3x + 2 = y –x + 2 = y x – 3 = y 2x – 3 = y
General
2 months ago
Thanks in advance to all those who provide support to my question.Represent the statement below as an equation.Three fourths of a number (x) is equal to 18 1/2.Please show work.
General
2 months ago
Write each equation in slope-intercept form of the equation of a line. Underline the slope and circle the y-intercept in each equation.3x+4y–12=02x+y=12x–y=0
General
2 months ago
6. Write the converse of the following true conditional statement. If the converse is false, write a counterexample:If a < 10, then a < 15.(1 point)If a > 10, then a > 15; falsecounterexample: a = 12 and a <15If a < 15, then a < 10; falsecounterexample: a = 12 and a > 10If a<15, then a<10; trueIf a> 15, then a > 10; true
General
2 months ago
(3[tex]\sqrt{x}[/tex]-1)(-5+[tex]\sqrt{x}[/tex]-9)+9
General
2 months ago
A rock is projected directly upward from ground level with an initial velocity of 90 feet per second. Give the function that describes the height of the rock in terms of time t.
General
2 months ago
A rectangular cardboard sheet has a length that is 1.5 times greater than the width. Is it possible to make a topless box with a volume of 6080 cm3 out of this cardboard sheet if squares with a side of 8 cm are cut from the corners? Find the dimensions of the cardboard sheet.
General
2 months ago
A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and weights using percent to decide which is the better buy.
General
2 months ago
A report in a research journal states that the average weight loss of people on a certain drug is 27 lbs with a standard deviation of 5 lbs. If this study is repeated, how large should the sample size be so that the margin of error would be no more than 2.5 lbs with 95% confidence?
General
2 months ago
A researcher collects a simple random sample of grade-point averages of statistics students, and she calculates the mean of this sample. Under what conditions can that sample mean be treated as a value from a population having a normal distribution? Select all that apply. A. The sample has more than 30 grade-point averages. B. If the population of grade-point averages has a normal distribution C. The researcher collects more than 30 samples. D. If the population of statistics students has a normal distribution.
General
2 months ago
A scale drawing uses the scale 1 in = 12 in. If a couch has a height of 32 inches and a length of 69 inches, what are its measurements on the scale drawing?
General
2 months ago
Errors in an experimental transmission channel are found when thetransmission is checked by a certifier that detects missing pulses.The number of errors found in a eight-bit byte is a random variablewith the following distribution:F(x) = { 0 x<1 0.7 1 <= x < 4 0.9 4 <= x < 7 1 7 <= xDetermine each of the following probabilities:(a) P(X <= 4) (b) P(X > 7)(c) P(X <= 5) (d) P(X > 4)(e) P(X <= 2)
General
2 months ago
Information on a packet of seeds claims that the germination rate is 92%. The packet contains 160 seeds. Let p represent the proportion of seeds in the packet that will germinate.The sampling distribution model for p is:a. N(0.92, 0.0215)b. N(0.08, 0.0215)c. N(147.2, 12.8)d. N(0.0215, 0.92)
General
2 months ago
The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of .2 inches. What is the probability that a randomly selected sample of 4 sheets will have an average length of less than 29.9 inches long?
General
2 months ago
Pleaseeee helpppppp I’ll put you as brainliest!!!!What is an example of a direct variation? What is an example of an inverse variation? Where and how are these used in science and engineering?
General
2 months ago
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