2/3 · (9y - 15) = 14

im stoopid

Answer:

why are there season

A earth revolves around the sun  

B earth rotates on its axis  

C earth Axis is titled

D the moon revolves around earth

Step-by-step explanation:

The stations are due to the inclination of the axis of rotation of the Earth with respect to the plane of its orbit with respect to the sun, which means that some regions receive different amounts of sunlight depending on the time of year.

The Earth rotates around its axis, this rotating movement is called rotation.

The answer is: C. The axis of the earth is tilted.

Answer:

y= - 271/71

x=755/71

z =4866/71

Step-by-step explanation:

For resolve a system you multiply an equation of the system or add two of the equation and replace the result in the system

                                                     Add the 1st and 2nd, and replace the 2nd

4x + 3y + z= -6         4x + 3y + z= -6          4x + 3y + z= -6

(-4) (x-3y + 2z=0) → -4x +12y -8z =0      →       +15y -7z = -6

11x-2y + 3z = - 26    11x-2y + 3z = - 26       11x-2y + 3z = - 26

                                                      Add the 2nd and 1st, and replace the 1st

4x + 3y + z= -6          4x + 3y + z= -6                    4x  + z= -6

(-1/5)( 15y -7z = -6) →  -3y -7/5z =6/5      →       -3y -7/5z =6/5

11x-2y + 3z = - 26     11x-2y + 3z = - 26           11x-2y + 3z = - 26

                                                      Add the1st and 3rd, and replace the 3erd

(-3)( 4x  + z= -6)          -12x - 3z= 18                    -12x - 3z= 18

-3y -7/5z =6/5      →  -3y -7/5z =6/5      →       -3y -7/5z =6/5

11x-2y + 3z = - 26      11x-2y + 3z = - 26           -x-2y  = - 8

                                                       Add the1st and 3rd, and replace the 1st

(1/3)(-12x - 3z= 18 )     -4x - z= 6                 -4x - z= 6

(5)(-3y -7/5z =6/5) →  -15y - 7z = 6        → -15y - 7z = 6

-x-2y  = - 8               (-4)(-x-2y  = - 8)         4x + 8y= 32

                          Add the 1st and 2nd, and replace the 2nd

(-7)(8y - z =38)        -56y +7z= 266     -56y +7z= 266

-15y - 7z = 6     →     -15y - 7z = 6  →      -71y=271 → y= - 271/71

(1/4)(4x + 8y= 12)       x+2y=3                 x+2y=3

-56y +7z= 266 → -8y + z =38 → z =4866/71

x+2y=3 → x=755/71

Answer:

The answers are "(f+g)(x)> 3 for all values of x" and "(f+g)(x)<6 for all values of x".

Step-by-step explanation:

• If f(x) = 1x1 + 9 =10, then f(x) is a constant for every value of x, which means that y=f(x) will take the value of 10 no matter which value takes x.
• If g(x)= -6, then  g(x) is a constant for every value of x, which means that it will take the value of -6 no matter the value of x.
• (f+g)(x)=10 + (-6) = 10 - 6= 4. Then, no matter the value of x, the function (f+g)(x) will equal 4 (a constant).

• According to the available options, both "(f+g)(x)>3" and "(f+g)(x)<6" are true, because (f+g)(x)=4>3 and (f+g)(x)=4 <6.

Answer:

  d.  5.454 x 10^7 square kilometers

Step-by-step explanation:

Adding 4.46×10^7 to 0.994×10^7 we get 5.454×10^7.

___

Before you can add numbers in scientific notation, they must both have the same multiplier. Here, we can see that the area of Asia will be written with an exponent of 7, so we choose to write both numbers that way.

  44,600,000 = 4.4×10,000,000 = 4.4×10^7

  9.94×10^6 = (0.994×10)×10^6 = 0.994×10^7

The sum is (4.400 +0.994)×10^7 = 5.454×10^7.

Combined area is 5.454 × 10^7 km²

Step-by-step explanation:

• Step 1: Find the combined area of Asia and Europe.

Area of Asia = 44,600,000 km²

Area of Europe = 9,943,106 km²

⇒ Combined Area = 44,600,000 + 9,943,106

                               = 54,543,106 km²

• Step 2: Convert to one significant figure.

54,543,106 = 5.454 × 10^7 km² (Dividing and multiplying by 10^7)