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MATH SOLVE
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The decay of 230 mg of an isotope is described by the function A(t)= 230e-0.031t, where t is time in years. Find the amount left after 26 years. Round your answer to the nearest mg.
General
9 months ago
Please,please,please someone answer this!! It's for a math performance task and It's overdue by a couple days so I need to finish it soon!! Please,please,please someone help me!! Worth 50 points PLUS I'll give the person who answers FIRST and BEST the brainlest answer. Using complete sentences, create your own scenario involving the United States' national debt with any two decades listed in the table. The scenario should include multiplication or division between the numbers in scientific notation. YearUS Nation Debt (in US dollars) 1960 $286,330,760,848.37 1970 $370,918,706,949.93 1980 $907,701,000,000.00 1990 $3,233,313,451,777.25 2000 $5,674,178,209,886.86 2010 $13,561,623,030,891.79
General
9 months ago
Please help!! Will mark brainliest!! Match each function to its domain.
General
9 months ago
Which ordered pairs are solutions to the inequality 4x+y>−6?Select each correct answer.(2, 0)(−3, 6)(4, −20)(0, −9)(−1, −1)
General
9 months ago
Use the premises and conclusion to answer the questions. Premises: If the sides of a triangle are the same length, then the triangle is an equilateral triangle. If a triangle is an equilateral triangle, then the measure of each angle is 60°. Conclusion: If the sides of a triangle are the same length, then the measure of each angle is 60°. Is the argument valid? Why or why not? The argument is not valid because the premises are not true. The argument is not valid because the conclusion does not follow from the premises. The argument is valid by the law of syllogism. The argument is valid by the law of detachment.
General
9 months ago
For his parents’ anniversary, Danny spends $5.87 on a photo.He also buys a balloon for $2.49 and a box of strawberries for $4.50. How much money does he spend all together
General
9 months ago
You are going running. For every mile you run, you burn 100 calories. In the equation below, m represents the number of miles you run, and c represents the number of calories you burn. The relationship between these two variables can be expressed by the following equation: c=100m, equals, 100, m Identify the dependent and independent variables.
General
9 months ago
Write a conditional statement. Write the converse, inverse and contrapositive for your statement and determine the truth value of each. If a statements truth value is false, give a counterexample
General
9 months ago
how can you determine that a coin is not pure silver if you known the mass and volume of the coin?
General
9 months ago
Jared sells square frames of various sizes made of wood. To find the area of a frame, Jared uses the formula A = s^2 - (s - 2w)^2, where s is the length of a side of the frame and w is the width of the frame.Part B.) Find the area of a frame that measures 20 inches on each side and has a width of 3 inchesPart C.) Jared charges 18 cents per square inch for his frames. How much will he charge for a frame that measures 16 inches on each side and has a width of 2 inches?
General
9 months ago
one week, the music store sold 2 trumpets, 3 clarinets, and 5 violins for $1240. the next week, they sold 3 trumpets, 1 clarinet, and 4 violins for $1027. the following week, they sold 5 trumpets, 7 clarinets, and 2 violins for $2091. find the cost of a trumpet, a clarinet would, and a violin.
General
9 months ago
The concession stand at a ballpark makes $0.43 profit from each hot dog sold. It also makes a profit of $0.65 from each pretzel sold and $1.31 from each drink sold. Which expression represents the total profit, in dollars, that the stand will make on a day when they sell h hot dogs, p pretzels, and d drinks?
General
9 months ago
Aliza needs to run at a rate faster than 8.8 feet per second in order to exceed her fastest time in a race. After running for 15 minutes, her coach determines that she is running at an average rate of 5.8 miles per hour. He converts the average rate to feet per second as shown below:He concludes that she is not running fast enough to exceed her fastest time.
General
9 months ago
Lana earned $49on friday $42 on saturday,and $21 on sunday selling bracelets she sold each bracelet for the same amount what is the most she could have charged for eac bracelet?
General
9 months ago
Round to the nearest hundred thousand 89, 659
General
9 months ago
g = 4ca - 3ba for a plzzzzz help me answer
General
9 months ago
99 POINTS POSSIBLE!!!! I have a lot of math problems.....Please show your work also:) I will give Brainiest too!1.Chase picked three buckets of blackberries that weigh: 2.79 pounds, 2.45 pounds, and 2.62 pounds. What is the average weight for the three buckets?2. Ashley is baking cookies for math class. The recipe calls for 4 4/5 cups of flour. Ashley has to make 1 1/3 times the recipe to feed the whole class. How much flour does Ashley need?3. Jordan finished her homework in 1 1/2 hours. It took Kasey 3/4 an hour longer than Jordan to finish her homework. How long did it take Kasey?4. 32.5 divided by -0.085. 4.3x= 81.7 (Decimal Equation)Thank you for helping me if you did!!!!!!!! I really appreciate it very much!!!!!!!
General
9 months ago
The number 'N' of cars produced at a certain factory in 1 day after 't' hours of operation is given by N(t)=100t-5t^2, 0< or equal t < or equal 10. If the cost 'C' (in dollars) of producing 'N' cars is C(N)=15,000+8000N, find the cost 'C' as a function of the time 't' of operation of the factory Then Interpret C(t) when t=5 hours as a new function.
General
9 months ago
Use the formula m = to calculate the slope of the line.The slope of the line is .
General
9 months ago
Find the missing measure for a right circular cone given the following information. Find r if T.A. = 12pi and L.A. = 8pi
General
9 months ago
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