First thing to do is to solve each of these for y. The first one is y=-4x-3; the second one is y=4x-21; the third one is y=4x+21; the fourth one is y=-4x+3. From that you can tell the positive slopes are found in the second and third equations. Those are the ones we will test now for the point (3, -9). y=-9 and x=3, so let's fill in accordingly. The second equation filled in is -9=4(3)-21. Does the left side equal the right when we do the math? -9=12-21 and -9=-9. So the second one works. Just for the sake of completion, let's do the same with the third: -9=4(3)+21. Does -9=12+21? Of course it doesn't. Our equation is the second one above, y+9=4(x-3).
Answer:
4√ 2 ≈5.66 to 2 dec. places
Step-by-step explanation:
Answer:
I dont know exactly but i think its C
Step-by-step explanation:
bc its the interest
Answer:
El número resultante es 902 billones 43 mil millones. ()
Step-by-step explanation:
Antes de proceder a escribir a resolver este problema, debemos recordar las siguientes equivalencias:
<em>Una decena de millares de millón</em> - 10.000'000.000
<em>Una centena de billón</em> - 100'000.000'000.000
<em>Una unidad de billón</em> - 1'000.000'000.000
<em>Un millar de millón</em> - 1.000'000.000
El ejercicio consiste en sumar las cantidades dadas para obtener el total, es decir:
El número resultante es 902 billones 43 mil millones. ()
Answer:
7
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the other leg, then
x² + 4² = ( )²
x² + 16 = 65 ( subtract 16 from both sides )
x² = 49 ( take the square root of both sides )
x = = 7
That is the other leg is 7 units