3 years ago

Determinants and inverses

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

6 0

Answer:

first qustion the last one .

second qustion the first one .

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vladimir1956 [14]

Answer:

1. equation: y = 7x, missing = 35

2. equation: y = x - 5, missing = 1

3. equation: y = 1/2x, missing = 2

4. equation: y = x + 4, missing = 15

Step-by-step explanation:

Equation Format: y = mx + b

(m) Slope = $\frac{14-7}{2-1}$

= 7

14 = 7(2) + b

14 = 14 + b

b = 0

y = 7x + 0

Solve for the missing y:

y = 7(5) + 0

y = 35 + 0

y = 35

-Chetan K

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Help help help help thanks lol

riadik2000 [5.3K]

$f(x)=x^2-81\\
y=x^2-81\\
x^2=y+81\\
x=\pm \sqrt{y+81}\\
f^{-1}(x)=\pm \sqrt{x+81}\\$

$f(x)=2x-6\\
y=2x-6\\
2x=y+6\\
x=\dfrac{1}{2}y+3\\
f^{-1}(x)=\dfrac{1}{2}x+3\\
f^{-1}(2)=\dfrac{1}{2}\cdot2+3\\
f^{-1}(2)=1+3\\
f^{-1}(2)=4$

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Which ordered pair represents the y-intercept of the graph of the equation y= -4x - 7

oksian1 [2.3K]

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(0,-7)

Step-by-step explanation:

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1.995 x 10 to the negative power of 23?

Lesechka [4]

199500000000000000000000

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a fruit drunk is madd by nixing juices a drink with 60%juice is to. be mixed with a drink that is 30% to obtain 300 ml ofadeink

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Step-by-step explanation:

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