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8 POINTS !!! I PROMISE BRAINLIST: JUST PLEASE ANSWER THIS REALLY QUICK IT'S TIMED!!! For questions 2 and 3, simplify each polynomial.2. 4x2 + 4 – 5x + x – 2x2 + 8 (1 point)A. –2x2 + 4x + 12B. –2x2 – 4x + 12C. 2x2 + 4x + 12D. 2x2 – 4x + 123. 2x2 + 6x – 7x + 8 – 3x2 + 1 A. 2x2 + x + 9B. –2x2 – x – 9C. –x2 – x + 9D. x2 + 94. What are the coefficients in the polynomial 4x² + 3x – 3? A. 4, –3, –3B. 4, 3C. 4, 3, 3D. –4, –3Add or subtract.5. (m2 – m – 4) + (m – 5) A. m^2 – 2m + 9B. m^2 + 2m – 9C. m^2 – 2m – 9D. m^2 – 9Add or subtract.6. (7x2 – x – 2) – (–6x3 + 3) A. 6x^3 + 7x^2 – x – 5B. –6x^3 + 7x^2 – x + 1C. –x^3 – x – 5D. x^2– x + 17. Suppose you earned 8t – 3 dollars on Monday and 6t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.A. 2t + 2B. 2t – 8C. 14t + 2D. 14t – 88. f7 ∙ f1 A. f^8B. f^7C. (2f)^8D. (2f)^79. 100^12/100^8A. 100^12/8B. 100^96C. 100^4D. 100^2010. x^11/x^4A. x^7B. x^15C. x^44D. x^11/4
General
4 months ago
PLEASE HELP!!!!! TIMED!!! Will give brainliest!! 70 POINTS!!!!!Matteo wants to write a statement that can be represented by the inequality P<9 Which describes the correct method to write a statement to match this inequality?Use the inequality symbol to determine the relationship between the variable and the constant. Decide what the variable will represent. Decide what the constant will represent. Write a statement using the same relationship. An example is “Alva spent more than $9.”Decide what the variable will represent. Decide what the constant will represent. Write a statement using the same relationship. An example is “Alva spent less than $9.” Use the inequality symbol to determine the relationship between the variable and the constant. Decide what the variable will represent. Decide what the constant will represent. Use the inequality symbol to determine the relationship between the variable and the constant. Write a statement using the same relationship. An example is “Alva spent less than $9.”Decide what the variable will represent. Decide what the constant will represent. Use the inequality symbol to determine the relationship between the variable and the constant. Write a statement using the same relationship. An example is “Alva spent more than $9.”
General
4 months ago
35 Points !20. Carmen can buy bottles of paint for $2.00 each and boxes of colored pencils for $3.50 each. She can spend no more than $42 on art supplies.a. Write an inequality that shows how many bottles of paint, x, and boxes of colored pencils, y, Carmen can buy. b. Name three different solutions to the inequality.
General
4 months ago
If the squared difference of the zeroes of the quadratic polynomial x2+kx+30 is equal to 169 find the value of k and the zeroes
General
4 months ago
PLEASE HURRY!!! TIMED!!! Will give brainliest!! 70 POINTS!!!Rashid bought a piece of wood with a length less than 5 feet. The variable w represents the length. The inequality w<5 describes the length of the piece of wood. Which number could be a length of the piece of wood? 4.5 6 11.3 13
General
4 months ago
Which of the following correctly names one of the vertices of the trianglebelow?
General
4 months ago
Here are two steps from the derivation of the quadratic formula.What took place between the first step and the second step?*Apex
General
4 months ago
What is the general form of the equation of the line shown? a.)x + y = 0 b.)x - y = 0 c.)-x - y = 0
General
4 months ago
Which statement about the solution of the inequality k<-3 1/4 is true?The number 7.1 is not a solution to the inequality because -3 1/4 is located to the right of 7.1 on the number line.The number 0.9 is not a solution to the inequality because -3 1/4 is located to the right of 0.9 on the number line.The number –3 is a solution to the inequality because –3 is located to the left of -3 1/4 on the number line.The number -8.4 is a solution to the inequality because -3/14 is located to the left of -3 1/4 on the number line.
General
4 months ago
A circular platform is to be built in a playground. The center of the structure is required to be equidistant from three support columns located at D(−2,−4), E(1,5), and F(2,0). What are the coordinates for the location of the center of the platform?
General
4 months ago
A company makes greeting cards and their research shows that that price and demand are related linearly: p=mx +b.They know that for every additional card they wish to sell they need to drop the price by $0.05. They also know that in order to sell 300 cards they need to set the price at $7. Find the linear equation relating P price to demand. Preview p =
General
4 months ago
Write a linear cost function for the situation. Identify all variables used. A parking garage charges 4 dollars plus 65 cents per half-hour. A linear cost function for the situation is C(x)=L (Use integers or decimals for any numbers in the expression)
General
4 months ago
A company makes greeting cards and their research shows that that price and demand are related linearly: p = mx + b. They know that for every additional card they wish to sell they need to drop the price by $0.05. They also know that in order to sell 360 cards they need to set the price at $4. Find the linear equation relating price to demand. p= 0 Preview
General
4 months ago
The yield of strawberry plants depends on the amount of fertilizer fed to the plants. Agricultural research shows that an acre of strawberry plants will yield 770 pounds of strawberries when 70 cubic feet of fertilizer are applied. If 100 cubic of feet of fertilizer are applied, the yield will be 1100 pounds of strawberries. Use linear interpolation to estimate the yield if 75 cubic feet of fertilizer are applied. Select an answer
General
4 months ago
The number (in millions) of employees working in educational services in a particular country was 14.4 in 2005 and 18.8 in 2014. Letx=5 correspond to the year 2005, and estimate the number of employees in 2011. Assume that the data can be modeled by a straight line and that the trend continues indefinitely. Use two data points to find such a line and then estimate the requested quantity Let y represent the number of employees. The linear equation that best models the number of employees (in Millions) is (Simplify your answer. Use integers or decimals for any numbers in the equation. Round to the nearest hundredth as needed.)
General
4 months ago
Before the industrial revolution in 1800 the concentration of carbon in Earth’s atmo- sphere was 280 ppm. The concentration in 2015 was 399 ppm. What is the percent increase in the amount of carbon in the atmosphere?
General
4 months ago
Question 3. Let f:X --> Y be a function. (a) Recall that for C CY, the inverse image of C is the set f-1(C) = {x E X|f(x) E C}. Let A, B CY. Prove that f-1(ANB) Cf-1(A) n f-1(B). (b) Recall that for D C X, the image of D under f is the set f(D) = {f(x) E YX E X}. Let A, B C X. Prove that f(An B) c f(A)n F(B). Find an example of a function f and sets A and B such that f(ANB) = Ø but f(A) n f(B) + Ø.
General
4 months ago
In 1970 the male incarceration rate in the U.S. was approximately 190 inmates per 100,000 population. In 2008 the rate was 960 inmates per 100,000 population. What is the percent increase in the male incarceration rate during this period?
General
4 months ago
A company makes t-shirts and their research shows that that price and demand are related linearly: p = mx + b. They know that in order to sell 10 shirts they need to set the price at $26, and in order to sell 20 shirts they need to set the price at $6. Find the linear equation relating price to demand. p= c. Preview
General
4 months ago
xy′ = √(1 − y2 ), y(1) = 0
General
4 months ago
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