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2 years ago

What is the expression obtained when the sum of 2a−16abc−45 and 2a+7abc+11 is subtracted from 6a+6abc−30?

Mathematics

1 answer:

kow [346]2 years ago

7 0

Answer:

$2a+15abc+4$

Step-by-step explanation:

$(2a-16abc-45)+(2a+7abc+11)$

$\implies 2a-16abc-45+2a+7abc+11$

collect and combine like terms:

$\implies 4a-9abc-34$

$(6a+6abc-30)-(4a-9abc-34)$

Apply the distributive law $-\left(a-b\right)=-a+b$ :

$\implies 6a+6abc-30-4a+9abc+34$

collect and combine like terms:

$\implies 2a+15abc+4$

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Oxana [17]

Answer:

Step-by-step explanation:

$a(n) = a1 *(1.25)^{(n-1)}$

$a(1) = 5$

$a(2) = 5*(1.25)^{(2-1)}\\a(2) = 5*(1.25)^{1}\\a(2) = 5*(1.25)\\a(2) = 6.25$

$a(3) = 5 * (1.25)^{(3-1)} \\a(3) = 5 * (1.25)^{2}\\a(3) = 5 * 1.565\\a(3) = 7.813$

$a(4) = 5* (1.25)^{(4-1)}\\ a(4) = 5* (1.25)^{3}\\a(4) = 5* 1.953\\a(4) = 9.766$

$a(5) = 5 * (1.25)^{(5-1)}\\a(5) = 5 * (1.25)^{4}\\a(5) = 5 * 2.441\\a(5) = 12.207$

$a(6) = 5 * (1.25)^{5}\\a(6) = 5 * 3.052\\a(6) = 5 * 3.0517\\a(6) = 15.259$

$a(1) = 5$

$a(2) = 6.25$

$a(3) = 7.813$

$a(4) = 9.766$

$a(5)=12.207$

$a(6)=15.259$

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3 years ago

Order the following expressions by their values from least to greatest. Please help me!

kolezko [41]

Answer:

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Step-by-step explanation:

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3 years ago

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6m^2 + 7n Identify the constant, variable, and terms

Leokris [45]

<h3>Answer:</h3>

Given equation :- 6m² + 7n

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3 years ago

If ab=12 cm bc=5 cm find the length of AC in Right angled triangle ABC.

lutik1710 [3]

Answer:

SEE BELOW

Step-by-step explanation:

Since, △ABC is a right angled triangle. We can apply Pythagoras' Theorem to find the length of AB.

According to Pythagoras’ theorem, “In a right angled triangle: The square of the hypotenuse is equal to the sum of the squares of the other two sides.”

Applying Pythagoras’ theorem in △ABC, we get

AB2=AC2+BC2

⇒AB2=52+122

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3 years ago

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Maksim231197 [3]

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3 years ago

What is the expression obtained when the sum of 2a−16abc−45 and 2a+7abc+11 is subtracted from 6a+6abc−30?​

What is the expression obtained when the sum of 2a−16abc−45 and 2a+7abc+11 is subtracted from 6a+6abc−30?