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What negative -2a plus a positive 3a?
-1a
What is the simplification for 3a plus 4b-5-a plus 7b plus 3-b?
3a + 4b - 5 - 1a + 7b + 3 - 1b 2a + 10b - 5 + 3 2a + 10b - 2
How do you solve this math problem a squared plus 2a minus 15 equals 0?
a2 + 2a - 15 = 0This can be factorised:a2 + 2a - 15 = (a - 3)(a + 5) = 0So a = 3 and -5.A more robust way is to shove it into the general solution:If αx2 + βx + η = 0, then x = (-β ± √(β2 - 4αγ)) / 2αSo if a2 + 2a - 15 = 0, then:a = (-2 ± √(22 - 4*1*-15)) / 2*1a = (-2±√(64))/2 = (-2±8)/2a = -10/2, 6/2a = -5, 3
Multiplying the sum by a number is the same as multiplying each added in the sum by the number and adding the prouducts?
Yes. This is called the distributive property. For example: a(1 + 2 + 3 + ... + n) = 1a + 2a + 3a ... + na
A plus a plus a-2a equals?
a + a + a - 2a = 3a - 2a = a
What is 3a minus a in math?
since a=1a, 3a-1a=2a
In which compound do ionic bonds dominate?
The metal to nonmetal bonds. Especially between Groups 1A, 2A and the halogens.
What is 1a plus 2a plus 3b plus 4b and what is the answer?
1a+3b 2a+4b=3a +7b
What are the modern groups on the periodic table?
group 1a , group 2a , transition elements , group 0 (inert gases)
The metals in Groups 1A 2A and 3A?
Metals in group 1A, 2A, 3A can form mono-, di- and trivalent positive ions respectively, and all are metals except Boron, which is a metalloid (between Carbon -a nonmetal- and Berillium -a metal- in period II).
What is 2 divided by 2a?
1
What is 2a minus a?
2a - a = a
What negative -2a plus a positive 3a?
-1a
Cuantos libros tiene el nuevo testamento y cuales son?
el nuevo testamento contiene 27 libros y son Mateo, Marcos, Lucas, Juan, Hechos, Romanos, 1a Corintios, 2a Corintios, Gálatas, Efesios, Filipenses, Colosenses, 1a Tesalonicenses, 2a Tesalonicenses, 1a Timoteo, 2a Timoteo, Tito, Filemón, Hebreos, Santiago, 1a Pedro, 2a Pedro, 1a Juan, 2a Juan, 3a Juan, Judas y Apocalipsis o Revelación.
What is the gcf of 2a and 3a?
The GCF of 2a amd 3a is 1a. This is because 2 and 3 doesn't have a common factor so it has to be 1 and the variables a and a are the same so the answer is 1a
How do 1A and 2A differ from the other group A elements?
bilat
What kind of elements form ionic bonds with nonmetals?
Metals. The two most reactive groups of metals that readily form these bonds with nonmetals are the alkali metals and the alkaline earth metals. Groups 1A and 2A.
