3 years ago

If f(x) = 6x - 4, what is f(x) when x = 8? оооо

Mathematics

1 answer:

Drupady [299]3 years ago

3 0

Answer:

$f(x)=44$

Step-by-step explanation:

Replace the value of x with 8:

$f(x)=6(8)-4\\ \\ 6\times8= 48\\ \\ 48 -4 =44\\ \\ f(x)=44$

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Which of the following inverse functions are defined for x=-1/2? Select all that apply.

Aleksandr-060686 [28]

Answer:

A, B, E, and F

Step-by-step explanation:

sinx and cosx are defined for all values of x. So, sin⁻¹x and cos⁻¹x are also defined for all values of x.

A and E are correct.

tanx is defined for all values of x.

However, tan(nπ) = 0 at when n is an integer. So, tan⁻¹(±nx) is undefined. However, tan⁻¹(-½x) is defined, because -½ is not an integer.

B and F are correct.

C and D are <em>wrong</em>. Both sec⁻¹x and csc⁻¹x are undefined when -1 < x < 1, and -½ is in this forbidden region.

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3 years ago

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$4,200 at 4%, $9,800 at 7%

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3 years ago

Last one in math! Help Me

Andre45 [30]

I CALCULATED IT AND GOT
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3 years ago

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H(x) = 5х+2.0х 3 - 45х-180х.<br> factor the polynomial

poizon [28]

The correct answer is 2x^3-40x-180

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3 years ago

Please help me I need help

snow_tiger [21]

d = 16.76 inches

Step-by-step explanation:

We can extend the definition of the Pythagorean theorem to 3-dimensions:

$d = \sqrt{ {x}^{2} + {y}^{2} + {z}^{2} }$

Let x = 10 in

y = 10 in

z = 9 in

$d = \sqrt{ {(10)}^{2} + {(10)}^{2} + {(9)}^{2} }$

$d = \sqrt{281} = 16.76 \: in$

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3 years ago