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2 years ago

- 2x – 5 < 12 Yo help

Mathematics

1 answer:

Elina [12.6K]2 years ago

5 0

Answer:

x > -17/2

Step-by-step explanation:

Step 1: Write inequality

-2x - 5 < 12

Step 2: Solve for x

Add 5 to both sides: -2x < 17

Divide both sides by -2: x > -17/2

Here, we can see that any number greater than -17/2 would work, so x could equal 01234718905731857013570 if we wanted it to, as long as it is greater than -8.5.

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Find the value of BC. HELP PLEASE!!

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It's an equilateral triangle, therefore

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We have the equation:

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Read 2 more answers

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Step-by-step explanation:

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Step-by-step explanation:

$3^{2x}+3^{x+1}-4=0\\\\3^{2x}+3^x\cdot3^1-4=0\\\\\text{Let u = }3^x\\u^2+3u-4=0\\\\(u+4)(u-1)=0\\\\u+4=0\quad and\quad u-1=0\\u=-4\qquad and\quad u=1\\\\\text{Substitute u with }3^x\\3^x=-4\qquad and\quad 3^x=1\\\text{not possible}\ and\quad 3^x=3^0\\.\qquad \qquad \qquad \qquad \boxed{x=0}$

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Step-by-step explanation:

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