In 1992 the average family income was about 42000, and in 2002 it was about 56256. Let x = 0 represent 1992, x = 1 represent 1993, and so on. Find values for a and b (rounded to one decimal place if necessary) so that f ( x ) = a x + b models the data a = b = What was the average family income in 1997? $

Answers

Answer 1

Step-by-step explanation:

Given the function that models the income of a family as g(X) = ax+b

at x = 0, g(x) = 42000, the function becomes;

g(X) = ax+b

42000 = a(0)+b

42000 = 0+b

b = 42000

at x = 1, g(x) = 56256

56256 = a(1) + b

56256 = a+b

a = 56256 -b

a = 56256 - 42000

a = 14,256

To get the average family income in 1997, wee need to calculate g(x) at when x = 5, since the number of years between 1992 and 1997 is 5years.

g(x) = ax+b

g(5) = 14256(5) + 42000

g(5) = 71,280+42000

g(5) = 113,280

Hence the average family income in 1997 is 113,280


Related Questions

how do you multiply fractions easily?

Answers

Answer:

To multiply two fractions, just do the following: Multiply the two numerators (top numbers) to get the numerator of the answer; multiply the two denominators (bottom numbers) to get the denominator of the answer.

Multiply the bottom denominators and then the same but with the numerator

What is 4x + 7 will give brainliest.

Answers

Answer:

11x

Step-by-step explanation:

math

An investment of $4000 doubles in value every decade. How much is the investment worth after 30 years?

Answers

Answer: 120,000

Step-by-step explanation: its right :0

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS

Answers

Answer:

( -3, -5)

step-by-step explanation:

original coordinates of C: (0, -7)

translation vertically means change in y axis

translation horizontally means change in x axis

solve:

( 0 -3, -7 + 2)

( -3, -5)

The answer would be (-3,-5) bc you move the C coordinate up 2 and to the left 3

7/27 ? 11/36
< or > or =

Answers

Answer:   Less than sign

7/27 < 11/36

===================================================

Work Shown:

First assume the two fractions are equal

7/27 = 11/36

Let's cross multiply to get...

7*36 = 27*11

252 = 297

The last equation is false, so the original equation is false. We can fix things by replacing the equal sign with a less than sign (since 252 is less than 297), so we get this instead

7/27 < 11/36

7*36 < 27*11

252 < 297

Showing that 7/27 is smaller than 11/36. We can confirm this by converting everything to decimal form. Use a calculator.

7/27 = 0.259 approximately

11/36 = 0.306 approximately

We see that 7/27 has the smaller decimal representation.

Which is a correct statement about the description "two less than the quotient of a number cubed and sixteen, increased by eight" when n = 4? The correct expression is StartFraction n cubed Over 16 EndFraction minus 2 8. The correct expression is 2 minus StartFraction n cubed Over 16 EndFraction 8. One of the steps to determining the value when n = 4 is 1 minus 2 8. One of the steps to determining the value when n = 4 is 2 minus 1 8. The value when n = 4 is 6. The value when n = 4 is 7. The value when n = 4 is 9. The value when n = 4 is 10.

Answers

The correct statement for the given description is  [tex]\dfrac{n^3}{16}-2+8[/tex], while the value of the expression for x = 4 is 10.

What is a linear equation?

A linear equation is one in which the variable's maximum power is always 1. A one-degree equation is another name for it.

The description of the statement is:

"Two less than the quotient of a number cubed and sixteen, increased by eight"and n = 4

Now, the given statements of the problem can be written as,

"Two less than x" describes "x- 2" "Quotient of x and y" describes   "x increased by y" describes  

Further, by combining all three statements, [tex]\dfrac{n^3}{16}[/tex]  is the quotient and 2 is subtracted and 8 is increased which means 8 is added.

Thus, the resultant expression is  [tex]\dfrac{n^3}{16}-2+8[/tex].

Evaluating the obtained expression at n=4,

Replace n with 4 and evaluate the expression as follows.

[tex]\dfrac{n^3}{16}-2+8|_{n=4} = \dfrac{4^3}{16}-2+8 = 4+6 =10[/tex]

Learn more about Linear Equations:

https://brainly.com/question/14362668

el lado de un cuadrado de su area es de 432m2

Answers

Answer:

Todos los lados de un cuadrado son iguales. Hay 4 lados en un cuadrado. Entonces, para encontrar un lado, debemos dividir el área por 4.

432/4 = 108, Un lado del cuadrado mide 108 metros.

HELP ME PLZZ I NEED HELP WITH THIS !!

Answers

Answer:

i think its letter B.

I hope I help you

Answer:

I think it is A but i might be wrong.

Step-by-step explanation:

I feel this is a matter of opinion.

Which of the functions graphed below has a removable discontinuity?

Answers

Answer:

3 graph

Step-by-step explanation:

A removable discontinuity is a point on the graph that is undefined or does not fit the rest of the graph.

The function in the graph that has a removable discontinuity is graph 3.

What is a removable discontinuity?

A removable discontinuity can be defined as a point on a graph of a function at which it is not connected. This ultimately implies that, a removable discontinuity refers to a point on the graph of a function that is considered to be undefined or doesn't accurately fit the other part of a graph.

However, it should be noted that the discontinuity in this graph can be corrected by filling in a single point.

Read more on function here: brainly.com/question/4246058

What is the completely factored form of x3 – 64x?
x(x – 8)(x – 8)
(x minus 4) (x squared + 4 x + 16)
x(x – 8)(x + 8)
(x – 4)(x + 4)(x + 4)

Answers

Answer:

3rd option

Step-by-step explanation:

x³ - 64x ← factor out x from each term

= x(x² - 64) ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

x² - 64

= x² - 8²

= (x - 8)(x + 8)

then

x³ - 64x = x(x - 8)(x + 8)

[tex] \huge \underline\frak \red{Answer}[/tex]

[tex]\small\mathbb\orange{x³-64x}[/tex]

[tex]\small\mathbb\orange{x(x²-64)}[/tex]

[tex]\small\mathbb\orange{know \: that \: it \: will \: be \: a \: x- and \: a \: because}[/tex]

[tex]\small\mathbb\orange{there \: is \: no \: middle \: x \: value}[/tex]

[tex]\small\mathbb\orange{x-)(x+)}[/tex]

[tex]\small\mathbb\orange{x(x \: — \: 8) (x+8)}[/tex]

______________________________________

[tex]\small\frak\green{hope \: its \: helpful \: to \: you}[/tex]

Are -9 and 22 like terms

Answers

Answer:

I would say no. But do not get mad if i am wrong

Step-by-step explanation:

Answer:

no

they are not the same number

How many meters are in 3.7 km?

Answers

Answer:

3700 m.

Step-by-step explanation:

3.7km= 3.7* 1000

3.7 km = 3700 m

ab = 6 BC= 12 what is the lenghth of ac

Answers

AC = AB + BC
= 6 + 12
= 18
Answer: 18

Explanation:
6+12=18

Anna spent $15.50 for child care on Monday, $22.50 on Tuesday, and $21.00 on Wednesday. How much did she spend on child care for these three days?

Answers

Answer:

15.50+22.50+21.00 = 59.00

=$59.00

please help me out and try to explain to the best of your ability :)

Answers

Answer:

d = 2

Step-by-step explanation:

A = πr²

2r = d

Step 1: Define

A = π

Step 2: Find r

π = πr²

1 = r²

r = 1

Step 3: Find d

2(1) = d

d = 2

Simplify the following. h^2-h-20/h^2-25​

Answers

h2 - h

h2 - 25

Trying to factor by splitting the middle term

1.1 Factoring h2 - h - 20

The first term is, h2 its coefficient is 1 .

The middle term is, -h its coefficient is -1 .

The last term, "the constant", is -20

: Multiply the coefficient of the first term by the constant 1 • -20 = -20

: Find two factors of -20 whose sum equals the coefficient of the middle term, which is -1 .

For a standard normal distribution, if p (z less-than-or-equal-to a) = 0.7116, what is the value of p (z greater-than-or-equal-to a)? 0.2116 0.2884 0.7116 0.7884

Answers

For a standard normal distribution, the value of  [tex]P(Z\geq a)[/tex] will be equal to 0.2884.

What is a normal distribution?

A standard normal distribution table gives the information about the probability.

The normal distribution has a mean is equal to zero and the standard deviation is equal to 1.

In this case, it is given that

[tex]P(Z\leq a)=0.7116[/tex]

Now for finding the value we have

[tex]P(Z\geq a)=1-P(Z\leq a)[/tex]

Now by putting the value

[tex]P(Z\geq a)=1-0.7116[/tex]

[tex]P(Z\geq a)=0.2884[/tex]

Thus for a standard normal distribution, the value of  [tex]P(Z\geq a)[/tex] will be equal to 0.2884.

To know more about Normal distribution follow

https://brainly.com/question/4079902

Answer:

B

Step-by-step explanation:

on edge

Patrick borrows $20,500 for 5 years with an interest rate of 2.3%, how much interest will he owe?

Answers

Answer:

i think its 2.3%

Step-by-step explanation:

tell me if im wrong

What value from set {4,5,6,7,8} makes the equation 6x -3 =45 true? Explain and show all your work.

Answers

Answer:

8

Step-by-step explanation:

In order for the equation to be true, both sides need to have the same value of 45. So, you need to find what value of x makes that side of the equation equal 45.

To simplify this, I would start by adding 3 to both sides: 6x = 48.

Next, I would divide both sides by 6, giving us x=8.

Write the vertex
form of y = X(4-x)

Answers

Answer:

4 = (y + x^2)/x

Step-by-step explanation:

y = x(4-x)

y/x = 4-x

4 = y/x +x

4 = (y + x^2)/x

Does anyone know angles? If so can you help me?

Answers

Answer:

Top right is x=21 Top left is x=15

Bottom right is x=9 Bottom left is x=38

Step-by-step explanation:

Use Table A-3 to find the range of values for the P-value of a two-tailed test with n = 33 and a test statistic of t= 1.811.
0.05 < P-value <0.10
0.025 < P-value < 0.05
0.02 < P-value < 0.05
0.10 < P-value < 0.20

Answers

For a  P-value of a two-tailed test with n = 33 and a test statistic of t= 1.811, the range of values is mathematically given as

0.10 < P-value < 0.20, Option D is correct

What is the range of values?

Question Parameter(s):

n=33

Test statistics=t=1.811

Generally, the equation for the right tailed p-value is mathematically given as

pt(1.811, df=32, lower.tail=F)

[x] 0.010108

In conclusion,The p value

P value=0.0100

Therefore

0.10 < P-value < 0.20

Read more about Arithmetic

https://brainly.com/question/22568180

good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Answers

Answer:

f(x) = 270,000(1.07)^x

$330,761.61

Step-by-step explanation:

Exponential growth is pretty simple:

f(x) = 270,000(1.07)^x

, where x is the number of years

To find sales after 3 years, substitute 3 for x:

f(x) = 270,000(1.07)^3

f(x) = 270,000(1.225043)

f(x) = $330,761.61

Answer:

1.  [tex]y=270000(1.07)^x[/tex]

2. $330,761.61

Step-by-step explanation:

General form of an exponential function: [tex]y=ab^x[/tex]

where:

a is the y-intercept (or initial value)b is the base (or growth factor) in decimal formx is the independent variable

If [tex]b > 1[/tex] then it is an increasing function

If [tex]0 < b < 1[/tex] then it is a decreasing function

Also [tex]b\neq 1[/tex]

Given:

a = $270,000b = 1 + 7% = 107% = 107/100 = 1.07

[tex]\implies y=270000(1.07)^x[/tex]

(where [tex]x[/tex] is the number of years, and [tex]y[/tex] is the annual sales in dollars)

When [tex]x=3[/tex]:

[tex]\implies y=270000(1.07)^3[/tex]

[tex]\implies y=330761.61[/tex]

all whole numbers are natural nummbers

Answers

Answer:

it starts from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on. But all whole numbers are not natural numbers.

This is pretty simple but I have no idea lol thanks

Answers

Answer:

cubic function

Step-by-step explanation:

If a snowboarder tries to do a 360 but makes it only 3/4 of the way around, how many degrees would that be?

Answers

Multiply 360 by 3/4


360 x 3/4 = (360 x3)/4 = 1080/4 = 270


Answer : 270 degrees

the answer would be 270 degrees because 360 divided by 4 is 90 and three times 90 is 270

Please look at the picture.

Answers

Answer:

the second one

Step-by-step explanation:

what is supplementary angle of LGC​

Answers

Answer:

your answer attached above

hope it helps.

:DD

What is the answer to this question?
What is 9.3456 x 12.3456 +123.566 - 12.4567

Answers

Answer:

226.48633936

Step-by-step explanation:

9.3456 x 12.3456 = 115.37703936

115.37703936 + 123.566 = 238.94303936

238.94303936 - 12.4567 = 226.48633936

Or to make it short 226.49

Hope this helped!

Enter an expression that represents the sum of seven cubed and forty nine

Answers

Let, first find expression for both;

— The expression for seven cubed is

— The expression for forty nine is 49

Now, sum of both is 7³ + 49

This is the required answer

Other Questions
Find the value of X. Help me solve this equation.. Heather left the airport and drove toward her friend's house at an average speed of 30 miles per hour. Cody left 2 hours later driving in the same direction at an average speed of 50 miles per hour. Find the number of hours it took for Cody to catch up with Heather. Solve for x this is hard:( Michelle withdrew $120 from her bankaccount. She now has $3345 in heraccount. Write and solve an equation tofind how much money m was in heraccount before she made the withdrawal subtract 12x - (4+ 3x) describe each of the following sets by using description a. X = { a, e, i, o, u }b. Y = { 1, 4, 9, 16, 25, 36, 49} Augment is 5 1/3 feet tall how many inches tall is she Please help.What is 74+35.6?Thank you If 3x + c = 4, then x equals A: 4-c B: 4 -c/3 C: c-4/3 D: c-4 Question 9 of 10Which of the following is a homograph?A. NailB. SlugC. PointD. All of the aboveSUBMIT HELPPP Consider the following polynomial:x4 - 5x+ 2x + x2-9The coefficient of the linear term is IThe coefficient of the quadratic term isThe coefficient of the cubic term is Credence barebones adoptive mother, mary lou barebone, belonged to which church?. Relationships Between OrganismsYour essay or paragraph need to include;commensalismCompetitionMutualismPredator-PreyParasitism for 100 points asapplease give right anser according to what you read in jefferson and locke how are liberty and order balanced in the social contrast Which oxidizing agent will oxidize br but not cl ? 46 plugs =. Feet. Inches Help Which temperature is the warmest?-4F-13F-28F2 F What is the measure of the unknown angle?Image of a straight angle divided into two angles. One angle is eighty degrees and the other is unknown.