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2 years ago

Find the domain and Range f(x)= 2/7x-2

Mathematics

1 answer:

wolverine [178]2 years ago

5 0

Answer:

Domain: {x|x∈R}

Range: ,{y|y∈R}

Step-by-step explanation:

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The sum of 4.5 and a number K is 26.2

garri49 [273]

Answer:

Your answer should be K=21.7

You can find this by subtracting 26.2-4.5

3 0

2 years ago

I need help with this question about similar triangles

Colt1911 [192]

Answer:

ST = 12 units

Step-by-step explanation:

Δ RAS and Δ TES are similar triangles, thus the ratios of corresponding sides are equal, that is, noting that SR = 21 - ST, thus

$\frac{ST}{SR}$ = $\frac{TE}{AR}$ substitute values

$\frac{ST}{21-ST}$ = $\frac{8}{6}$ ( cross- multiply )

6ST = 8(21 - ST)

6ST = 168 - 8ST ( add 8ST to both sides )

14ST = 168 ( divide both sides by 14 )

ST = 12

6 0

3 years ago

If you answer this your littearly a pro hacker pls help

gladu [14]

Answer:

6 times 3 times 4

18 times 4

= 72

Step-by-step explanation:

hope this helps good luck

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2 years ago

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Jesse wants to paint the top of the table shown. What is the approximate area that she will paint? Circumference is 78 inches.

Salsk061 [2.6K]

Answer:

I need help with my question

Step-by-step explanation:

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3 years ago

What is the inverse of the function

Evgesh-ka [11]

Answer:

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = $\frac{19}{x^3}$ ( multiply both sides by x³ )

x³y = 19 ( divide both sides by y )

x³ = $\frac{19}{y}$ ( take the cube root of both sides )

x = $\sqrt[3]{\frac{19}{y} }$

Change y back into terms of x, then

$f^{-1}$ (x) = $\sqrt[3]{\frac{19}{x} }$ = $\frac{\sqrt[3]{19} }{\sqrt[3]{x} }$ → A

6 0

3 years ago