We are looking at HIV positive rates among rural Chinese farmers. One of the variables studied

was education level, which was recorded as 'illiterate," "primary," and "secondary." What type of

variable is education level in this example?

Answer:

y=7.5x+0 you don't have a b value because your rate starts at 0.

Answer:

b. 36 years

Step-by-step explanation:

Today

Nirmala = x years

Rahul = 3x years

In 13 years

Nirmala = 3x + 13 years

Rahul = 2(x+13) - 1

3x + 13 = 2(x+13) - 1

3x + 13 = 2x + 26 - 1

3x + 13 = 2x + 25

3x - 2x = 25 - 13

x = 12

Nirmala = x years

= 12 years

Rahul = 3x years

= 3(12)

= 36 years

The age of Rahul today is 36 years

Answer:

h(x) = f(x) + g(x)

fill in the equations

h(x) = (2x^3 + 1) + (x^2 - 4x + 3)

h(x) = 2x^3 + 1 + x^2 - 4x + 3

combine like terms

h(x) = 2x^3 + x^2 - 4x + 4

Answer:

2x+3

Step-by-step explanation:

[tex](6x+6)+(-3-4x)=2x+3[/tex]

Answer: The height of the telephone pole = $15.046

Step-by-step explanation:

Given: Angle of elevation= 62 degrees.

Distance of Ben from the base of the pole = 8 feet

According to trigonometry, we have

[tex]\tan x=\dfrac{\text{side opposite to x}}{\text{side adjacent to x}}[/tex]

i.e.

[tex]\tan 62^{\circ}=\dfrac{\text{ height of the telephone pole}}{8}\\\\(1.880726)=\dfrac{\text{ height of the telephone pole}}{8}\\\\\text{ Height of the telephone pole} = 8\times 1.880726\approx15.046[/tex]

Hence, The height of the telephone pole = $15.046

Step-by-step explanation:

step 1. -42 < 7j

step 2. j > -6 (divide both sides by 7)

step 3. notice that I also put the variable first.

Answer:

Area of circle = 4π.

Step-by-step explanation:

Given the following data;

Diameter = 4cm

Pie = π.

To find the area of the circle;

Radius = diameter/2

Radius = 4/2

Radius = 2cm

Area of a circle = πr²

Substituting into the equation, we have;

Area of circle = π*2²

Area of circle = 4π.

Answer:

1 : 3

Step-by-step explanation:

Answer:

x=2,x=4

So, the 6-meter side will be 2 centimeters and the 12-meter side will be 4 centimeters in the drawing.

Step-by-step explanation:

Solve for x by using cross multiplication

6=3x

x=2

12=3x

x=4

Answer:

lelelleleellelelellelellelelelrlrlelel

Answer:

The positive numbers are 51 and 53

Step-by-step explanation:

Let first odd integer be x and another odd integer is (x+2).

According to the given condition,

The product of two positive consecutive odd integers is 2703 i.e.

x(x+2) = 2703

[tex]x^2+2x-2703=0[/tex]

It is a quadratic equation. It can be solved as follows :

x = 51 and x = -53

Neglecting negative sign,

The first number = 51

Another number =(51+2) = 53

Hence, the positive numbers are 51 and 53.

Answer:

4(x + 9) = 76

Hope that helps!

Btw, x = 10

Step-by-step explanation:

Answer:

303.95 m^3

Step-by-step explanation:

Volume = πr2h

r= 4.4

h = 5

= 3.14 × 4.4^2 × 5

= 3.14 × 19.36 × 5

= 303.95

Hence the volume is 303.95 m^3

Question :-

Answer :-

[tex] \rule{180pt}{4pt}[/tex]

Diagram :-

[tex]\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{4.4 \: m}}\put(9,17.5){\sf{5 \: m}}\end{picture}[/tex]

Solution :-

As per provided information in the given question, we have been given that the Radius of a cylinder is 4.4 meters. The height of a cylinder is 5 meters. We have been asked to find the volume of a cylinder.

To calculate the volume of a cylinder, we will apply the formula below :-

[tex] \bigstar \: \: \: \boxed{ \sf{ \: \: Volume_{(Cylinder)} = \pi r^2 h \: \: }}[/tex]

Substitute the given values into the above formula and solve for Volume :-

[tex]\sf:\implies Volume_{(Cylinder)} = \pi r^2 h[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(4.4 \: m)^2(5 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(19.36 \:m^2)(5 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (60.7904 \:m^2)(5 \:m)[/tex]

[tex]\sf:\implies\bold{Volume_{(Cylinder)} = 303.952 \: m^3}[/tex]

Therefore :-

[tex]\\[/tex]

Learn more about the Volume of a Cylinder at https://brainly.com/question/15197979

Have a great day! <33

Answer:

Salary=30(parts sold) + 700

Step-by-step explanation:

Answer:

37318.4

Step-by-step explanation:

hope this helps

Answer:

= 4 × 3 - 5

=12-5

=7

Step-by-step explanation:

the answer is 7

Answer:

9.75 is the answer rounded to 10.

10 is the final answer

Hope it helps!!!

Say if my answer is correct....

Answer:

5/8

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

There are no graphs, but the graph should look lyke this:

An open circle on the point "10"

And from the 10, the arrow should be going left, towards the negatives, or smaller numbers than the ten

Answer:

y = 15x + 20 or 15x - y + 20 = 0

x = 11

Step-by-step explanation:

Line is passing through the points (0, 20) & (2, 50)

Slope of line = (50 - 20)/(2 - 0) = 30/2 = 15

Equation of line

y - 20 = 15(x - 0)

y - 20 = 15x

y = 15x + 20 or 15x - y + 20 = 0

Plug y = 185 in above equation, we find:

185 = 15x + 20

185 - 20 = 15x

165 = 15x

x = 165/15

x = 11

Answer:

Step-by-step explanation:

work backwards to find the factors from the roots then multiply the factors together. y= x² - 24x + 140

Answer:

63.4

Step-by-step explanation:

Answer:

$3.50

Step-by-step explanation:

Given that the  cost of 3 pencils and 2 markers is $1.30. Let the cost of  a pencil be $p and that of a marker be $m then

3p + 2m = 1.30

Also, the cost of 2 pencils and 3 markers is $1.20 will result

2p + 3m = 1.20

Solve both simultaneously

3p + 2m = 1.30

2p + 3m = 1.20

multiply the first by 2 and the second by 3

6p + 4m = 2.60

6p + 9m = 3.60

subtract the second from the first

4m - 9m = 2.60 - 3.60

-5m = -1

Divide both sides by -5

m = 0.20

substitute into equation 1

3p + 2(0.2) = 1.30

3p + 0.4 = 1.30

3p = 1.30 - 0.40

3p = 0.90

Divide both sides by 3

p = 0.30

The total cost of 7 pencils and 7 markers

= 0.30 * 7 + 0.20 * 7

= 2.10 + 1.40

= $3.50

Answer:

C) z = 1/2

Step-by-step explanation:

4z + 5 = 7

4z = 2

z = 1/2

Answer:

14

Step-by-step explanation:

because all diagonals are of the same lenght

Answer:

It D

Step-by-step explanation:

Answer:

   She switched the x- and y-coordinates.

   Both coordinates should be positive values.

   The x-coordinate should be 5.

✔ The y-coordinate should be -3 1/2

Answer: 1/4

Step-by-step explanation:

If you add the equations:

12a + 3b = 1

-2a + 7b = 0

------------------- (you get):

10a + 10b = 1 (divide by 10)

a + b = 1/2 (divide by 2 since average of two numbers is their sum divided by 2)

(a + b) / 2 = 1/4

Answer: 0.05

Step-by-step explanation:

1. 12a+3b=1

a= (1-3b)/12

2. 7b-2a=0

7b-2((1-3b)/12)

b=1/45

a=(1-3b)/12=(1-3(1/45))/12=7/90

Lastly: (7/90+1/45)/2=0.05

Answer:

Step-by-step explanation:

3) 15,39,65

_________

5 )5,13,65

--------------

13  )1,13,13

----------------

   |  1,1,1

L.C.M.=3×5×13=195

They will chime together after 195 minutes.