4 years ago

I need help with this magic number puzzle

Mathematics

1 answer:

Delicious77 [7]4 years ago

7 0

You need a better camera

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From the set {200, 210, 388}, use substitution to determine which value of x makes the equation true.

IrinaK [193]

Answer:

Step-by-step explanation:

because x= 386

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3 years ago

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− 2/3 a+ 6 /5 a− 6 /1

muminat

Answer:

=8/15a−6

Step-by-step explanation:

−2/3a+6/5a−6/1=−2/3a+6/5a+−6

=−2/3a+6/5a+−6=(−2/3a+6/5a)+(−6)=8/15a+−6

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3 years ago

Which is a recursive formula for the sequence 99.4, 0, –99.4, –198.8, where f(1) = 99.4?

NNADVOKAT [17]

f(x)= -99.4x + 198.8

f(1) = -99.4*1 + 198.8 = 99.4

f(2) = -99.4*2 + 198.8 = 0

f(3) = -99.4*3 + 198.8 = -99.4

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4 years ago

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Given that f(x) = x2 + 2x + 3 and g(x) = quantity of x plus four, over three , solve for f(g(x)) when x = 2.

Sidana [21]

$f(x)=x^2+2x+3$
$g(x)=\frac{x+4}{3}$
$f(g(x))=(\frac{x+4}{3})^2+2(\frac{x+4}{3})+3$
$f(g(x))=\frac{x^2+8x+16}{9}+\frac{2x+8}{3}+3$
$f(g(2))=\frac{2^2+8(2)+16}{9}+\frac{2(2)+8}{3}+3$
$f(g(2))+\frac{4+16+16}{9}+\frac{4+8}{3}+3$
$f(g(2))=\frac{36}{9}+\frac{12}{3}+3$
$f(g(2))=4+4+3$
$f(g(2)=11$

Check:
g(2)=(2+4)/3=2
f(2)=2^2+2(2)+3=4+4+3=11 Checks.

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3 years ago

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Hello everyone.

lina2011 [118]

Answer:

I Don't know either

Step-by-step explanation:

I know

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3 years ago