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2 years ago

Please help i’ll mark u brainliest

Mathematics

1 answer:

Likurg_2 [28]2 years ago

3 0

Answer:

there is a lot of solutions here is some guidance. so if there are more then 4 and less then 10 then every solution should equal 5, 6, 7,8, and 9. also it says the number of pencils is more then the number of pens so for example if it was to equal 9 i would put 5 + 4 . 5 is the number of pencils, 4 is the number of pens or i could put 6 + 3 so any numbers that equal to what i said; 5, 6, 7,8, and 9. good luck!

Step-by-step explanation:

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Drag each tile to the correct location on the image. Each tile can be used more than once, but not all images will be used.

OverLord2011 [107]

Answer:

Switch x and y, and solve for y

$f^{-1}(x) =\frac{(x -4)^3}{8}$

Step-by-step explanation:

Given

$f(x) = 3\sqrt{8x} + 4$

Required

Complete the steps to determine the inverse function

Solving (a): Complete the blanks

Switch x and y, and solve for y

Solving (b): Determine the inverse function

$f(x) = \sqrt[3]{8x} + 4$

Replace f(x) with y

$y = \sqrt[3]{8x} + 4$

Switch x and y

$x = \sqrt[3]{8y} + 4$

Now, we solve for y

Subtract 4 from both sides

$x -4= \sqrt[3]{8y} + 4-4$

$x -4= \sqrt[3]{8y}$

Take cube roots of both sides

$(x -4)^3= 8y$

Divide both sides by 8

$\frac{(x -4)^3}{8} = y$

So, we have:

$y =\frac{(x -4)^3}{8}$

Hence, the inverse function is:

$f^{-1}(x) =\frac{(x -4)^3}{8}$

7 0

3 years ago

(-2x+3y=8....(i) ( x+y=2.........(ii) solve by elumination method and substitution

yan [13]

Answer:

x = -2/5

y = 12/5

Step-by-step explanation:

Substitution method;

-2x + 3y = 8 -----------(i)

x + y =2 -----------(ii)

x = 2 - y

substitute the value of x in equ (i)

(-2)* (2-y) + 3y = 8

-4 + 2y + 3y = 8

5y = 8 + 4

y = 12/5

substitute the value of y in equ (ii)

x + 12/5 = 2

x = 2 - 12/5

= 2*5/1*5 - 12/5

= 10 -12/5 = -2/5

Ans: x = -2/5

y = 12/5

elimination method:

-2x + 3y = 8 -----------(i)

x + y =2 -----------(ii)

(i) ====> -2x + 3y = 8

multiply equ (ii) by 2 ====> 2x + 2y = 4

add (i) and (ii) 5y = 12

y = 12/5

Substitute in equ (ii)

x + 12/5 = 2

x = 2 - 12/5

= 2*5/1*5 - 12/5

= 10 -12/5 = -2/5

Ans: x = -2/5

y = 12/5

5 0

3 years ago

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MAVERICK [17]

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Paraphin [41]

Answer:

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Step-by-step explanation:

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