2 years ago

What is the value of x

Mathematics

1 answer:

astra-53 [7]2 years ago

3 0

I dont know this answer

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F (x) =2x -4; find f (-4)

NemiM [27]

Answer:

f(-4) = -12

Step-by-step explanation:

$f(x)=2x-4$

To calculate f(-4), we need to substitute x in our equation above with -4:

$f(x)=2x-4\\f(-4) = 2*(-4) - 4\\f(-4) = -8-4 = -12$

Note that 2*(-4) = -8

Answer: f(-4) = -12

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3 years ago

Lauren is putting a circular window in her living room ceiling. The window will have a radius of 3 feet. Using 3.14 for π, what

Ira Lisetskai [31]

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3 years ago

What the answer someone help me!!!

True [87]

Step-by-step explanation:

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Which number is less than 3.58?

sergiy2304 [10]

Answer:

3 is les than 3.58

Step-by-step explanation:

3 is less than 3.58

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3 years ago

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If sin theta =1/4, theta in quadrant II, find the exact value of cos[theta +pi/6]

Mashcka [7]

Using cos addition formula:
use x for theta
cos(x+π/6)=cosx*cos(π/6)-sinx*sin(π/6)
sinx=1/4
cosx=√15/4
cos(π/6)=√3/2
sin(π/6)=1/2
cos(x+π/6)=(√15/4*√3/2)-(1/4*1/2)
cos(x+π/6)=(√45/8)-(1/8 )
cos(x+π/6)=(√45-1)/8)

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2 years ago