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3 years ago

If f(x) =2x3 - 1, then f(-3)=

Mathematics

2 answers:

Vadim26 [7]3 years ago

4 0

Answer:

f(-3)=-19

Step-by-step explanation:

-3 REPLACES THE x

MA_775_DIABLO [31]3 years ago

3 0

Answer:

Step-by-step explanation:

f(x) = 2x^3 - 1

if x = -3,

f(-3) = 2 × (-3)^3 - 1

= 2 × -27 - 1

= -54 -1

= -55

hope this helps

plz mark it as brainliest!!!!!!!!!

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given that sin theta= 1/4, 0 is less than theta but less than pi/2, what is the exact value of cos theta

lapo4ka [179]

Answer:

$\cos{\theta} = \frac{\sqrt{15}}{4}$

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Setler79 [48]

Answer:18 19 20

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Suppose that x=1 x+1= 1+1=2 and x+2=1+2=3 However, you need specific consecutive numbers whose sum is 57. Remember that sum means to add:

x+ (x+1) + (x+2) = 57 Addition of all 3 consecutive numbers Now solve for x

and substitute into each part to come up with the three integers:

3x + 3= 57 3x=54 x=54/3 = 18 x=18, x+1= 18+1=19 x+2=18+2=20

Check your answer: 18+19+20=57 57=57 Check

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3 years ago