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Katie recently retired and met with her financial planner. She arranged to recieve 57000 the first year. Because of inflation, each year she will get 820 ,ore than she recieved the previous year. What income will she recieve in her tenth year of retirement?
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10 months ago
Lea and Alberto are selling flower bulbs for a fundraiser. Customers can buy bags of windflowers bulbs and packages of crocus bulbs. Lea sold 9 bags of windflower bulbs and 10 packages of crocus bulbs for a total of $201. Alberto sold 7 bags of windflower bulbs and 3 packages of crocus bulbs for a total of $99. What is the cost each of one bad of windflower bulbs and one package of crocus bulbs
General
10 months ago
78056°(100°(x + 48)°
General
10 months ago
Erin's Pie Shop has 18 pies for sale, including 2 blueberry pies. What is the probability that a randomly selected pie will be a blueberry pie?
General
10 months ago
-9 b = 27. i need to find the value for b
General
10 months ago
which situation could be represented by an exponential function select each correct answer
General
10 months ago
Lorelei evaluates the expression StartFraction 12 factorial Over (12 minus 10) factorial 10 factorial EndFraction to determine how many different groups of ten she can make out of twelve items. Her solution: Subtract within parentheses and simplify: StartFraction 6 factorial Over (2) factorial 5 factorial EndFractionExpand: StartFraction 6 times 5 times 4 times 3 times 2 times 1 Over 2 times 1 times 5 times 4 times 3 times 2 times 1 EndFractionDivide out common factors: StartFraction 6 Over 2 times 1 EndFractionBecause 6 divided by 2∙1 is 3, there are 3 ways to choose the groups. Which statements describe Lorelei’s solution? Check all that apply.Her work is correct. Her answer is correct.In step 1, the subtraction cannot be completed before the factorial of each number is calculated.In step 1, 12! divided by 10! is not equivalent to 6! divided by 5!.In step 3, the dividing out of common factors was performed incorrectly. There are sixty-six ways to choose ten items from twelve.
General
10 months ago
Phonics is an instructional method in which children are taught to connect sounds with letters or groups of letters. A sample of 134 first-graders who were learning English were asked to identify as many letter sounds as possible in a period of one minute. The average number of letter sounds identified was 34.06 with a standard deviation of 23.83. (a) Construct a 98% confidence interval for the mean number of letter sounds identified in one minute. (b) If a 95% confidence interval were constructed with these data, would it be wider or narrower than the interval constructed in part a? Explain. (c) If a sample of 150 students had been studied, would you expect the confidence interval to be wider or narrower than the interval constructed in part (a) ?
General
10 months ago
The DingGnat Doorknob Company intends to sell a new line of square doorknobs. The price-demand function is p ( x ) = 48.5 − 0.09 x p ( x ) = 48.5 - 0.09 x . That is, p ( x ) p ( x ) is the price in dollars at which x x knobs can be sold.a. How many knobs can be sold at a price of $36.30?b. Write an equation for the revenue function R(x).
General
10 months ago
3. Suppose you are testing H0 : µ = 20 vs H1 : µ > 20. The sample is large (n = 71) and the variance, σ 2 , is known. (a) Find the critical value(s) corresponding to α = 0.08. (b) You find that z = 1.56. Based on your critical value, what decision do you make regarding the null hypothesis (i.e. do you Reject H0 or Do Not Reject H0)?
General
10 months ago
What is 5x98 in distributive property
General
10 months ago
Margaret took a trip to Italy. She had to convert US dollars to euros to pay for her expenses there. At the time she was traveling, the conversion rate was represented by the function E(n)=0.72n, where n is the number of dollars and E(n) is the equivalent value in euros. Later, she traveled to Dubai and converted her remaining euros into the local currency, UAE dirhams. At that time, the conversion rate was represented by the function D(x)=5.10x, where x is the number of euros and D(x) is the equivalent value in dirhams. Which function can be used to convert n dollars directly to dirhams?A) (D x E)(n) = 5.10(0.72n)B) (D x E)(n) = (5.10x) x (0.72n)C) (E x D)(n) = 0.72(5.10n)D) (E x D)(n) = (0.72n) x (5.10x)
General
10 months ago
Sam sent an Email to 3 friends on Monday . Each of the friends then sent an Email to 3 friends on Tuesday . On Wednesday , each or those friends then sent an Email to 3 friends . Write the prime factorization of the numbers of Emails that were sent on Wednesday
General
10 months ago
13-2(3) order of operations
General
10 months ago
what are the critical points for the inequality 2x+5/x-2≥x-1/x-2? A. x=-5/2, x=1, and x=2B. x=-6 and x=2C. x=-4 and x=2D. x=2
General
10 months ago
Find the measure of the angle indicated in bold. Plus the theorem.
General
10 months ago
which inequality is equivalent to x-6/x+5≥x+7/x+3?
General
10 months ago
Which link between two elements could you remove from the relation so that it becomes a function?
General
10 months ago
find the domain of the following function f(x)=sqrt x-4. write your answer in interval notation.
General
10 months ago
how do you know the opposite of a nonzero integer?
General
10 months ago
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