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5x−4≥12 AND 12x+5≤−4 solve in less than 10 minutes and ill give brainliest, btw i need the answer its more than just solving 2 sides and telling me what x equals on both sides
General
4 months ago
Lisa, Beth, and Tim painted their grandparent's house. • The amount of time Lisa painted can be represented by x. • The amount of time Beth painted is 1 3 5 times the amount Lisa painted • The amount of time Tim painted is 1 2 3 times the amount Lisa painted. • The total amount of time Lisa, Beth, and Tim painted is 24 hours. What is x, the amount of time painted by Lisa?
General
4 months ago
Let f(x) = x2, g(x) = √x + 3.a. Show that (f(x + 3)) = |x + 3| + 3.b. Does (x) = |x + 3| + 3 = (x) = |x| + 6? Graph them on the same coordinate plane
General
4 months ago
Let f(x) = log2(x) and g(x) = 2x.a. What is f(g(x))?b. Based on the results of part (a), what can you conclude about the functions f and g?
General
4 months ago
The area and circumference of a circle of radius r are given by A(r) = πr2 and C(r) = 2πr. Suppose we increasethe radius of a sphere by 0.001 units from r to r + 0.001.a. Use the binomial theorem to write an expression for the increase in area volume A(r + 0.001) − A(r) as asum of three terms.b. Write an expression for the average rate of change of the area as the radius increases from r to r + 0.001.c. Simplify the expression in part (b) to compute the average rate of change of the area of a circle as the radiusincreases from r to r + 0.001.d. What does the expression from part (c) resemble?e. Why does it make sense that the average rate of change should approximate the area of a circle? Think aboutthe geometric figure formed by A(r + 0.001) − A(r). What does this represent?f. How could we approximate the area of the shell using circumference? And the average rate of change for thearea?g. Find the difference between the average rate of change of the area and C(r) when r = 1.
General
4 months ago
On a given day, the coldest surface temperature on the Moon, $-280$°F, is $53.6$°F colder than twice the coldest surface temperature on Earth. What is the coldest surface temperature on Earth that day?The coldest temperature is °F.Question 2Justify your answer.please help me it's due today
General
4 months ago
Does it pay to ask for a raise? A national survey of heads of households showed the percentage of those who asked for a raise and the percentage who got one. According to the survey, of the women interviewed, 25% had asked for a raise, and of those women who had asked for a raise, 46% received the raise. If a woman is selected at random from the survey population of women, find the following probabilities. (Enter your answers to three decimal places.)
General
4 months ago
Find a polynomial of degree 3 with real coefficients and zeros of minus3,minus1, and 4, for which f(minus2)equals30.
General
4 months ago
A student wanted to find the sum of all the even numbers from 1 to 100. He said:The sum of all the even numbers from 1 to 100 is twice the sum of all the odd numbers from 1 to 100.The sum of all the odd numbers from 1 to 100 is 100^2.Explain why each of these statements is incorrect.NEED AN ANSWER ASAP
General
4 months ago
Given the following two pair for values x1 = 5, y1 = 4 and x 2 = 1, y2 = .Calculate the Pythagorean triples associated with each pair.Based on the results of the previous activity, for which values xn and yn is this identity valid?
General
4 months ago
1. (8.3 × 10-3)(69,500) 2. (2.13 × 109)(5.6 × 10–7) 3. (4.3 × 105)(3.7 × 103) 4. (3600)(7.5 × 10–2) 5. 1.8 × 102 − 7.5 6. 5.32 × 106 − 7.6 × 10-2 7. 3.6 × 10-4 − 2.88 × 103 8. 3.92 × 10-3 − 9.8 × 10−4 9. (2.2 × 105)(2,500) 10. (9.66 × 103)(2.6 × 10-5) 11. (5.24 × 10-8)(6.9 × 103) 12. (1.1 × 104)(7.7 × 10-1) 13. 9.45 × 106 − 2.7 × 104 14. 1.8 × 10−3 − 7.5 × 10-1 15. 26,607 − 5.43 × 102 16. 3.6 × 10-1 − 4 × 107 17. (1.6 × 103) + (4.77 × 102) 18. (8.735 × 104) + (2.8 × 105) 19. (3.31 × 109) - (2.2 × 108) 20. (9.475 × 105) - (1.9 × 103) 21. (34,500) - (6.3 × 102) 22. (8.8 × 107) - (49,000) 23. (7.28 × 1010) + (1.9 × 1010) 24. (3.325 × 105) + (2.7 × 103) 25. (4500) - (3.0 × 102) 26. (7.89 × 106) - (4.5 × 106)
General
4 months ago
The candy company that makes M&M's claims that 10% of the M&M's it produces is green. Suppose that the candies are packaged at random in large bags of 200 M&M's. When we randomly pick a bag of M&M's, we may assume that this represents a simple random sample of size n = 200. Suppose we wish to test H0: p = 0.10 versus Ha: p ≠ 0.10. Suppose that in the randomly selected bag of M&M's there are only 12 green M&M's. Calculate the value of the large-sample z statistic. If a 90% confidence interval were also calculated from the data, would it contain the value 0.10?
General
4 months ago
A random sample of 60 suspension helmets used by motorcycle riders and automobile race-car drivers was subjected to an impact test, and on 16 of these helmets some damage was observed. (a) Find a 95% two-sided confidence interval on the true proportion of helmets of this type that would show damage from this test. Round your answers to 3 decimal places. ≤p≤ (b) Using the point estimate of p obtained from the preliminary sample of 60 helmets, how many helmets must be tested to be 95% confident that the error in estimating the true value of p is less than 0.02? n= (c) How large must the sample be if we wish to be at least 95% confident that the error in estimating p is less than 0.02, regardless of the true value of p?
General
4 months ago
Consider the recurrence relation and some initial values for the Fibonacci sequence. Fk = Fk − 1 + Fk − 2 F0 = 1, F1 = 1, F2 = 2, Use the recurrence relation and values for F0, F1, F2, given above to compute F13 and F14.
General
4 months ago
Solve the equation for all degree solutions and if 0° ≤ θ < 360°. Do not use a calculator (Enter your answers as a comma-separated list. If there is no solution, write no solution.)1. 2 sin θ= root 2(a) all degree solutions (let k be any integer.)(b) 0≤ θ < 360°2. 2 cos θ − root 3=0(a) All degree solutions (let k be any integer.)(b) 0≤ θ < 360°3. root 3 cot θ- 1=0(a) all degree solutions (Let k be any integer.)(b) 0° ≤ θ < 360°
General
4 months ago
A sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. In a random sample of 40 bins, the sample mean amount was 52.8 pounds and the sample standard deviation was 3.9 pounds. Construct 95% and 99% confidence intervals for the mean amount of garbage per bin for all bins in the city.a) What is the lower limit of the 95% interval? Give your answer to three decimal places.b) What is the upper limit of the 95% interval? Give your answer to three decimal places.c) What is the lower limit of the 99% interval? Give your answer to three decimal placesd) What is the upper limit of the 99% interval? Give your answer to three decimal places.e) Consider the claim that the mean amount of garbage per bin is 54.1985 pounds. Is the following statement true or false? The decision about the claim would depend on whether we use a 95% or 99% confidence interval: True/False
General
4 months ago
Store A uses the newsvendor model to manage its inventory. Demand for its product is normally distributed with a mean of 500 and a standard deviation of 300. What is its in-stock probability if Store A’s order quantity is 800 units?
General
4 months ago
Consider the function, f(x) = 1 1 + x 2 . a. (10 pts) Compute Z 1 −1 f(x) dx using five point Simpson’s method (two Simpson partitions). Show all the calculations in exact arithmetic (i.e. use fractions throughout). b. (15 pts) Partition the interval [−1, 1] into 5 subintervals. For this partition, compute Z 1 −1 f(x) dx using trapezoid and midpoint methods. Show all the calculations in exact arithmetic
General
4 months ago
Surface integrals using a parametric description. evaluate the surface integral \int \int_{s} f(x,y,z)dS using a parametric description of the surface.f(x,y,z)=x2+y2, where S is the hemisphere x2+y2+z2=36, for z>=0
General
4 months ago
4(5a²b³)^2 / (2x³y^5)4 show your workYou invest $15,000 in a savings account with an annual interest rate of 2.5% in which the interest is compounded quarterly. How much money should you expect to have in the account after 5 years? Show your work
General
4 months ago
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