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If m angle ECD is six less than five times m angle BCE, and mangle BCD = 162º. find eachmeasure.
General
4 months ago
Evaluate the expression.7.4+6 - 12:4Plz help me
General
4 months ago
Given a directed line segment with endpoints A(3, 2) and B(6, 11), what is the point thatdivides AB two-thirds from A to B?
General
4 months ago
2. Given a directed line segment with endpoints A(3, 2) and B(6, 11), what is the point thatdivides AB two-thirds from A to B?
General
4 months ago
Mr. Jackson has 30 pennies and 42 dimes that he will be putting into containers for groups of students to use for a math activity. He wants to put an equal number of pennies and an equal number of dimes into each container. He will use all the coins.
General
4 months ago
If DEF is a straight angle, mDEG = (23r-3)and mGEF = 112x+8).find each measure.
General
4 months ago
In the standard x,y plane, a circle has a radius 6 and center (7, 3). The circle intersects the x-axis at (a, 0) and (b, 0). What is the value of a + b?
General
4 months ago
4. A restaurant used 231 eggs last week. Of these, 46 were brown in color. The remaining eggs were white incolor. Whichequationcanbeusedtosolveforw, thenumberofwhiteeggsusedlastweek?
General
4 months ago
Two students walk in the same direction along a straight path, at a constant speed - one at .90 m/s and the other at 1.90 m/s.a.) assuming that they start at the same point ant the same time, how much sooner does the faster arrive at a destination 780 m away?b.) how far would the students have to walk so that the faster student arrives 5.50 min before the slower student?
General
4 months ago
An ice cream shop sold 48 vanilla milkshakes in a day, which was 40% of the total number of milkshakes sold that day. What was the total number of milkshakes that the ice cream shop sold that day?
General
4 months ago
A survey of 3,000 who bought a new car showed that 900 people hadmechanical issues within the first 2 year. What is the relative frequency of the people that had mechanical issues?What is the relative frequency of the people that did not have mechanicalissues?What does the relative frequencies in part (a) and (b) tell you about thenew car and how reliable it has been? Explain please and Thank you.
General
4 months ago
A survey question revealed that at a particular college 87 percent of students worked at least sometime during their undergraduate career and 13 percent did not work at all. Another question showed that 32 percent of the students worked throughout their undergraduate career. A pie chart is created that includes the category "Students who worked sometime during their undergraduate career, but not throughout." What would the central angle be for this category? A. 198 degrees B. 47 degrees C. 313 degrees D. 115 degrees
General
4 months ago
A used electronics store pays $50 for each cell phone, spends $15 refurbishing the phone, and sells the refurbished phone to a customer for $120.a. Write an expression in simplest form that represents the company's earnings (in dollars) from buying, processing, and selling cell phones. Use x to represent the number of cell phones they sell. An expression is ( ) dollars.Question 2b. What does the coefficient of the expression in part (a) represent?- the total number of phones the company sells - the amount (in dollars) the customer loses from each phone- the amount (in dollars) the company earns from each phone- the amount (in dollars) the company spends on each phone
General
4 months ago
A hot air balloon is currently at a height of 900 feet. The balloon is descending by 10 feet minute. Find a function for the balloon's height after x minutes
General
4 months ago
A line has this equation: y = x + 7Write an equation for the parallel line that goes through (3.-5).
General
4 months ago
Which postulate or theorem proves that these two triangles are congruent? SAS Congruence Postulate HL Congruence Theorem AAS Congruence Theorem ASA Congruence Postulate
General
4 months ago
Copy and simplify the following expressions by combining like terms. Using or drawing sketches of algebra tiles may be helpful.2x^2+30+3x^2+4x^2+14+x20+5xy+4y^2+10+y^2+xy
General
4 months ago
The cumulative distribution function for a certain random variable X is given as follows: F (x) = {0, x < 0 4x^3 - 3x^4, 0 lessthanorequalto x lessthanorequalto 1 1, x greaterthanorequalto 1. (a) Find P(x greaterthanorequalto 1/2). (b) Find the pdf, f (x). (F (x) = integral^x _-infinity f (t)dt.) (c) Find the mean and variance. 20 percent (20%) of tree light bulbs manufactured by a company are defective. The company's Quality Control Manager is quite concerned and therefore randomly samples 50 bulbs coming off of the assembly line. Let X denote the number in the sample that are defective. What is the probability that the sample contains at most four defective bulbs? The results of our MIDTERM in MATH 279 are as follows: 75, 8, 36, 36, 55, 55, 27, 83, 17, 58, 55, 42, 36, 50, 42, 82, 27, 92, 50, 42, 100, 83, 27, 58, 55 Find a 95% confidence interval for the average of all tests at NJIT. The probability density function (pdf) for the length of a part in millimeters is f (x) = 30e^-30 (x - 10) for x > 10 in and zero for x lessthanorequalto 10 in. Although the intended target length is 10 in several factors can produce lengths exceeding 10 in. (a) Determine the mean and variance of the length. (b) The probability that length exceeds 10.1 in. (c) Find the cumulative function, F(x).
General
4 months ago
A human resources representative claims that the proportion of employees earning more than $50,000 is less than 40%. To test this claim, a random sample of 700 employees is taken and 305 employees are determined to earn more than $50,000. The following is the setup for this hypothesis test: {H0:p=0.40Ha:p<0.40 Find the test statistic for this hypothesis test for a proportion. Round your answer to 2 decimal places. Provide your answer below:
General
4 months ago
A small, test batch of lemonade used one fourth cup of sugar added to one cup of water and one fourth cup of lemon juice. After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water. How much sugar should be added so that the large batch tastes the same as the test batch
General
4 months ago
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