The table below gives U.S. lead emissions. L, into the environment in milions of metric tons for 197g-1992. Lat I=0 in 1970. 1970 1975 1980 1985 1988 1989 1900 1991 1992 Lead emissions 240 108.6 47.6 18.6 89 8.1 67 53 46 Year () Find an exponential model for these data Lead emission, L()= (b) Find a fourth-degree polynomial model for these data Lead emission, L)= (c) Which of these curves gives a better model for the data? A exponential model B. fourth-degree polynomial (d) Estimate the lead emission in 1984 according to the polynomial model in part (b)

Q: 3 -4- -0- 4. 2.

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Q: . 3류 - 2층 : 3% +4/3) 1

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Q: 5(18)

A: To find5(18)

Q: 3 1/4 + 7 1/8

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Q: 5/14+1/6

A: 514+16=15+742

Q: 5 1 1 + 2r dr

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Q: expand (a-b)7

A: The solution is given in the next step.

Q: Expand (x + y) 8.

A: Given: The expression x+y8.

Q: 2

A: The Laplace inverse can be found by splitting the expression into three parts as it have power of 3…

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Q: sing the geometry of the graph ,evalvate the definite integrals.

A: As this is a multiple subpart question according to the Bartleby Answering rule, only first three…

Q: 9 b and c

A: b) We check if the denominator is 0 for any value of x.  2x2+5=0 2x2=-5 x2=-5/2 (not possible) So…

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A: Given: 4(5+6)=

Q: A 2/15 B 30 V35 5 20

A: Given,  A circle with secant and tangent  We have to find the value of x

Q: 3/8+5/24

A: The given expression is 3/8 + 5/24.Simplify the given expression as follows.

Q: ne binomial:

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Q: 3. Identify all the cycles at each node of the directed graph above.

A: Cycle is defined as a path that start and end at the same vertex.

Q: tions exist, you o = x %3D

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Q: Expand (a −b)4

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Q: 81 (1) 420

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Q: d. 1 3a+18 = 1 - 8 a+6

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Q: 56 10

A: The objective is to evaluate the value for

Q: 10. Find the sum of the coefficients of (2x– 3)°. c. -6560 d. -5120 а. -5660 b. -6780

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Q: (n + 4)3 =

A: Given query is to expand (n+4)3

Q: V415

A: Given query is to find the square root of 415.

Q: (2) 4 2. 2. 2/3

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Q: find: (m+I) m!

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Q: expand (x+y)6

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Q: ydy (1+ у)*

A: We have to find the integral.

Q: Find A.

A: Given

Q: 2/5 +7/12

A: Please see the answer below.

Q: 3 3/4 + 2 7/28

A:

Q: nvert

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Q: 35-40 Coterminal Angles? The measures of two angles in standard position are given. Determine…

A: NOTE: Refresh your page if you can't see any equations. . two angles are coterminal if the…