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. ()
<span>3 of the 20 toothbrushes are defective, so the initial probability of selecting a defective toothbrush on the first try is 3/20. After that, there will be 2 defective toothbrushes in the remaining 19, so the probability of selecting one of those on the 2nd try will be 2/19. To get the probability of those two events happening sequentially, we multiply the two probabilities. Thus (3/20)*(2/19) = 6/380 = 0.0157, or about 1.6%.</span>
Answer:
A) H+4
Step-by-step explanation:
I do this in a different way, but i'll do it in both
Mine:
30 ÷ 2 = 15
4 ÷ 2 = 2
15+2, 15 -2
17, 13
Kristen Has 17
Yours:
h+(h+4)=30
-4 -4
h+h = 26
2h = 26,
h = 13, Back to the equation, use 13 as a sub. for all the h's
13+(13+4) = 30
13 + 17 = 30
Hope this helps!
Answer:25
Step-by-step explanation:
8x^2 + 9 - 6x^2 - 2x - 2
= 2x^2 - 2x + 7
answer is B
2x^2 - 2x + 7