The table below gives U.S. lead emissions. L, into the environment in millions of metric tons for 1970-1992. Let w in 1970. 1970 1975 1980 1985 1988 1989/1900 1991 1902 Lead emissions 240 108.6 47.6 18.6 8.9 8.1 6.7 53 4.6 Year (a) Find an exponential model for these data Lead emission, L() (b) Find a fourth degree polynomial model for thene data. Lead emission, L()- (0) Which of these curven 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.

A:

Q: 5 -100 12 8

A: Solve the given

Q: 4. 3. 4, 8.

A:

Q: 2. V686

A:

Q: 2 3 3 4 6 8

A: The mean is computed below.   Aptitude score(x) Frequency(f) x*f 0 4 0 1 2 2 2 3 6 3 0 0…

Q: 3 1/4 + 7 1/8

A:

Q: 7/2 + 3 4/6

A:

Q: 7,20

A:

Q: Given the parent function f(x) = 2, which graph shows f(x) + 1? -5 -4 -3 -2 2 3 4 2 -5 3 4 2.

A: Given :   f(x)=2x

Q: 6.3 3

A:

Q: 9.2 2 15 5 3 16

A:

Q: 3. Find L-¹{√534}. (s+3)

A:

Q: 7 10

A: Consider the provided equation, x7·x10=____ Fill in the blank.

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

A:

Q: 4 4 2 4) 3 4.

A: Topic- shifting and scaling of figure

Q: 11 35

A:

Q: Identify the postulate for each drawing

A: Identify the postulates for each drawing

Q: 4 10

A: Given: The figure,

Q: 9 tmes 8

A: 9 times 8 means adding 8 upto 9 times or multiply 8 by 9.

Q: 24

A: Solution : find length of side

Q: elow is an incomplete probability model showing the likelihood of selecting a marble from a way.…

A: Second option is correct 3/10

Q: 14 and 16

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: No.6 b,c

A: Given, fx=x2 ; 0<x<1k-x ; 1<x<20     ; elsewhere Now,according to the properties of…

Q: 3(m – 5) + m

A: 3(m-5)+m=0 3m-15+m=0 add both side 15 we get 2m=15

Q: k 24

A: First we solve the inequality. ANd for that , we divide both sides by -6 .And on dividing by…