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postnew [5]
2 years ago
8

Given h(x) = –2x – 4, solve for x when h(x) 6.

Mathematics
2 answers:
maksim [4K]2 years ago
8 0
Bat manajjajajajajajajjajsksksksisisjejieieoeosososos
Nesterboy [21]2 years ago
5 0

Answer:

x = -16

Step-by-step explanation:

given:

h(x) =  -2x - 4

solve for x, when:

h(x) = 6

~~~~~~~~~~~~

➡️ x =  -2(6) - 4

➡️ x =  -12 - 4

➡️ x = -16

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I'll use arithmetic series to find it.

First two-digit number divisible by 3 is 12, last such number is 99. Every 3rd number is divisible by 3.

So,

a_1=12\\a_n=99\\d=3\\n=?\\\\a_n=a_1+(n-1)\cdot d\\99=12+(n-1)\cdot 3\\3n-3=87\\3n=90\\n=30

<u>There are 30 such numbers.</u>

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