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2 years ago

The sum of three numbers is 123

Mathematics

1 answer:

Elan Coil [88]2 years ago

6 0

Answer:

Step-by-step explanation:

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The function f(x) = 1/2 x + 3/2 is used to complete this table

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Answer:

Only the 2nd and 5th options are correct.

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Ksenya-84 [330]

I don’t know this question

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3 years ago

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Can someone PLEASE help me solve this equation ? due soon

RideAnS [48]

$\sf{Given : 3tanx + 7 = \dfrac{2}{(1 - sinx)(1 + sinx)}}$

We know that : (a - b)(a + b) = a² - b²

$\implies \sf{3tanx + 7 = \dfrac{2}{1 - sin^2x}}$

We know that : 1 - sin²x = cos²x

$\implies \sf{3tanx + 7 = \dfrac{2}{cos^2x}}$

$\sf{\bigstar \ \ We \ know \ that : \boxed{\sf{\dfrac{1}{cos^2x} = sec^2x}}}$

$\implies \sf{3tanx + 7 = 2sec^2x}$

We know that : sec²x = 1 + tan²x

$\implies \sf{3tanx + 7 =2(1 + tan^2x)}$

$\implies \sf{2 + 2tan^2x - 3 tanx - 7 = 0}$

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$\implies \sf{2tanx(tanx + 1) - 5(tanx + 1) = 0}$

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3 years ago

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Minchanka [31]

Answer:

Step-by-step explanation:

2k+10 | Both terms share the common factor two, so you can take it out (divide both terms by 2)

2(k+5) | Now if you use the Distributive Property to double check, you get 2k+ 10 again

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3 years ago

Simplify the expression and explain each step 8+(7+x)

Darina [25.2K]

Answer:

15 + x (Guess)

Step-by-step explanation:

Simply ignore the x, and do 8 + 5.

Then, do 15 + x.

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3 years ago

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