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user100 [1]
3 years ago
7

CAN AYONE PLEASE HELP ME WITH MY HOMEWORK ILL MARK BAINLYIST

Mathematics
1 answer:
Amanda [17]3 years ago
3 0

Answer: v-(kx8)

Step-by-step explanation: plz mark me brainliest

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What is the inverse of the function g(x) = x^3/8 + 16 ?
lesya692 [45]

Answer:

\hookrightarrow \: { \rm{f(x) =  \frac{ {x}^{3} }{8}  + 16}} \\

• let f(x) be m:

{ \rm{m =  \frac{ {x}^{3} }{8}  + 16}} \\

• make x the subject of the function:

{ \rm{8m =  {x}^{3}  + 128}} \\  \\ { \rm{ {x}^{3} = 8m - 128 }} \\  \\ { \rm{ {x}^{3} = 8(m - 16) }} \\  \\ { \rm{x =  \sqrt[3]{8}  \times  \sqrt[3]{(m - 16)} }} \\  \\ { \rm{x = 2 \sqrt[3]{(m - 16)} }}

• therefore:

{ \boxed{ \rm{ {f}^{ - 1} (x) = 2 {(m - 16)}^{ \frac{1}{3} } }} }\\

6 0
3 years ago
A 15 ounce alloy containing 30% gold was mixed with an alloy containing 5% gold to get an alloy containing 20% gold. How many ou
Studentka2010 [4]

Answer:

4.5 % alloy

Step-by-step explanation:

Let x = amt of 30% alloy

The resulting total is to be 25 oz, therefore:

(25-x) = amt of 5% alloy:

A typical mixture equation:

.30x + .05(25-x) = .20(25)

.30x + 1.25 - .05x = 5 .30x - .05x = 5 - 1.25

.25x = 3.75

x = 3.75%2F.25

x = 15 oz of 30% alloy required

then

25-15 = 10 oz of 5% alloy:

Check solution

.30(15) + .05(10) = .20(25)

4.5 + .5 = 5

4 0
3 years ago
What is the perimeter of the rectangle?
Sholpan [36]

Answer:

32

Step-by-step explanation:

P=2(l+w)

so 2(11+5)=P

2(11+5)=32

7 0
3 years ago
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What is the ninth term in the sequence an=21+5n
Anni [7]

Answer:66

Step-by-step explanation:

an=21+5n

ninth term is a9

a9=21+5x9

a9=21+45

a9=66

4 0
3 years ago
What is the best approximation of the solution to the equations that these two lines represent ​
Illusion [34]

Answer: the answer would be c

Step-by-step explanation:

6 0
3 years ago
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