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3 years ago

Evaluate f(-3) when f(x) = x + 7

Mathematics

1 answer:

Pavel [41]3 years ago

4 0

Steps to solve:

f(-3) = x + 7

~Substitute

f(-3) = -3 + 7

~Simplify

f(-3) = 4

Best of Luck!

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Solve -2/3 x > 8 or -2/3x <4

Tema [17]

I doubt it says "or". It's probably an and.

$\dfrac{-2}{3}x > 8\wedge\dfrac{-2}{3x} < 4$

$-2x > 24\wedge3x < \dfrac{4}{-2}$

$x > -12\wedge x < -\dfrac{2}{3}$

$\Rightarrow\boxed{-12 < x < -\dfrac{2}{3}}$

$\Rightarrow\boxed{x\in(-12,-\dfrac{2}{3})}$

Hope this helps.

r3t40

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3 years ago

4(2x-3)=x-12+7x<br> This is a multi step equation

agasfer [191]

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then you add like terms giving you
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4 years ago

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Evaluate (15 – 4x) + 5 when x = 3.

SIZIF [17.4K]

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2 years ago

Simplify: (-1+4i)(-12-9i)

sergiy2304 [10]

-1 (-12 - 9i) + 4i (-12 - 9i)

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4 years ago

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Helppppppppppp please

boyakko [2]

Answer:

x = 94°

Step-by-step explanation:

The measure of the chord- chord angle CED is half the sum of the arcs intercepted by the angle and its vertical angle, that is

$\frac{1}{2}$ ( arc CD + arc AB ) = 82°

Multiply both sides by 2 to clear the fraction

CD + AB = 164°, that is

x + 70 = 164 ( subtract 70 from both sides )_

x = 94°

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3 years ago