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3 years ago

Evaluate f(x) =-3x + 7 for x = 2

Mathematics

2 answers:

Gala2k [10]3 years ago

6 0

F(x)=-3(2)-7
f(x)=-6-7
f(x)=-13

d1i1m1o1n [39]3 years ago

4 0

Answer:

F(x)=1

Step-by-step explanation:

Just add in 2 were x is. f(x)=-3(2)+7 then multiply -3(2) which is -6 then add 7

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3 years ago

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3 years ago

Identify the 12th term of a geometric sequence where a1 = 8 and a6 = −8,192.

vodka [1.7K]

Geometric sequence
$a_{n}=a_{1}*r^{n-1}$
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a1=first term
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4 years ago

Read 2 more answers

Brianne solved a quadratic equation. Her work is shown below, with Step 2 missing.

Alja [10]

Given:

The given quadratic equation is

$3(x+4)^{2} = 48$

or, $(x+4)^{2} =16$

And

The roots are given: $x = -8 , x = 0$

To find the missing step.

Let us solve the equation.

$3(x+4)^{2} = 48$

or, $(x+4)^{2} = 16$

or, $x^{2} +8x+16 = 16$ [ eliminating 16 from both the side]

or, $x^{2} +8x = 0$

or, $x(x+8) = 0$

or, $x = 0, x = -8$

Hence,

The step 2 could be $x^{2} +8x = 0$

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4 years ago

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Mama L [17]

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2 surfaces are 6 in by 18 in; combined area is 2(108 in^2).
2 surfaces are 9 in by 18 in; combined area is 2(162 in^2).

Add up these areas: A = 2(54+108+162) in^2 = 648 in^2 (answer)

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3 years ago