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3 years ago

What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?

Mathematics

2 answers:

Luba_88 [7]3 years ago

6 0

Answer:

k =3

Step-by-step explanation:

f(x) = 112 -kx

Let x = -3

f(-3) =112 -k(-3)

We know that it equals 121

121 = 112 +3k

Subtract 112 from each side

121-112 =112 -112 +3k

9 = 3k

Divide each side by 3

9/3 = 3k/3

3 =k

Ksenya-84 [330]3 years ago

4 0

Answer:

hello :

put - 3 in f(x) you have : 112 - k(-3) = 121

solve 112 +3k =121

3k = 121 -112

3k = 9

k = 3

Step-by-step explanation:

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3 years ago

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soldi70 [24.7K]

Answer:

The correct option is B.

Step-by-step explanation:

It is given that Joe paid 14.00 for a board game this is 70% of the original price what is the original price.

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3 years ago

I need help, someone help me, please

lara [203]

Answer:

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Step-by-step explanation:

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2 years ago

Find f. A) 7.4 B) 8.2 C) 10.5 D) 11.1

tatyana61 [14]

F=72

g=6

------------

$\cos { \left( F \right) } =\frac { { e }^{ 2 }+{ g }^{ 2 }-{ f }^{ 2 } }{ 2eg }$

Therefore:

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But what is e?

E=76

G=32

g=6

And:

$\frac { e }{ \sin { \left( E \right) } } =\frac { g }{ \sin { \left( G \right) } }$

Which means that:

$\frac { e }{ \sin { \left( 76 \right) } } =\frac { 6 }{ \sin { \left( 32 \right) } } \\ \\ \therefore \quad e=\frac { 6\cdot \sin { \left( 76 \right) } }{ \sin { \left( 32 \right) } }$

If you take this value into account, you will discover that f is...

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Step-by-step explanation:

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