3 years ago

Can someone please help me?

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

3 0

What is your question? what do you need help with?

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Let f(x) = x2 - 16. Find f-1(x).

Arisa [49]

$f(x)=x^2-16$

To find $f^{-1}(x)$ , (the inverse of the function) you need to first replace the f(x) with y...
$y=x^2-16$
Then switch the x and the y.
$x=y^2-16$
Solve for y.
$x+16=y^2$
Take the square root of each side...
$\boxed{y=\pm\sqrt{x+16}}$

6 0

3 years ago

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Joseph needs to calculate how much grass seed he needs to cover his lawn. A diagram of his lawn is shown below. One pound of see

viktelen [127]

L x W = Area
40 x 15 = 600 square ft
So you would need 6 bags of feed
600/ 100 = 6

4 0

3 years ago

the first four terms of a geometric progression are 2,10,50,250 a) write down the common ratio of the progression b) write down

VLD [36.1K]

Answer:

The common ratio is 5 and the 5th term is 1250

Step-by-step explanation:

The common ratio is given by

r=U(2)/U (1)

=10/2

The fifth term

U (n)=ar^n-1

U(5)=2(5)^5-1

=2×5^4

=2×625

=1250

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3 years ago

Last week, the price of apples at a grocery store was $1.06 per pound. This week, apples at the store are on sale at a 10% disco

olga2289 [7]

Answer: $6.48

Step-by-step explanation:

1.60 * 0.1 = $0.16

1.60 - 0.16 = $1.44

1.44 * 4.5 = $6.48

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2 years ago

Another poem i made just now hope yall like it

dolphi86 [110]

Answer:

that is so sad but thank you for the poem!!!

Step-by-step explanation:

547588485858745875484585468568686854548 x 575747754757757575598844888=3.1527284e+65

7 0

3 years ago

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