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2 years ago

HELP (I WILL GIVE 30 POINTS)

Mathematics

2 answers:

In-s [12.5K]2 years ago

6 0

I think is (A)

> x = (8 - 2f^-1(x))²

=> x^(½) = 8 - 2f^-1(x).

=> -2f^-1(x) = 8 - √x

Therefore:

f^-1(x) = (8 - √x)/2

Hope this help

pav-90 [236]2 years ago

3 0

Answer:

4 ± 1/2sqrt(x) = y

This is not a function

Step-by-step explanation:

f(x) = (8-2x)^2

y = (8-2x)^2

To find the inverse function, exchange x and y and then solve for y

x = (8-2y)^2

Take the square root of each side

±sqrt(x) = 8-2y

Subtract 8 from each side

-8±sqrt(x) = 8-8-2y

-8±sqrt(x) = -2y

Divide by -2

-8/-2± 1/2sqrt(x) = -2/-2y

4 ± 1/2sqrt(x) = y

This is not a function

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Mohammad divide Rs 82000 into two parts such that the amounts at 5% per annum compound interest in 2 years and 3 years are equal

lara [203]

Answer:

Rs 42000 and Rs 40000

Step-by-step explanation:

Given that Rs 82000 is divided into two parts.

Let the first part be Rs x which is compounded annually at the interest of 5% per annum for 2 years.

The rate of interest = 5%=0.05

The total amount after 2 years $= x(1+0.05)^{2}\cdots(i)$

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As both the amounts are equal, so from equation (i) and (ii)

$x(1+0.05)^{2}=(82000-x)(1+0.05)^{3} \\\\x(1.05)^{2}=82000(1.05)^{3} -x(1.05)^{3} \\\\x(1.05^2+1.05^3)=82000\times 1.05^3 \\\\x(2.260125)=94925.25 \\\\x=94925.25/2.260125 \\\\$

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Hence, he divides the money as

Rs 42000 at 5% per annum compound interest in 2 years and

Rs 40000 at 5% per annum compound interest in 3 years.

4 0

2 years ago

A shipping container holds 20 soft drink boxes. The dimensions of a soda box are 15 inches by 4 inches by 5 inches. What is the

patriot [66]

Answer:

6000 in³

Step-by-step explanation:

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To do this, we find the volume of each soda box and multiply it by the total number of soda boxes held by the shipping container.

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3 years ago

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Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Formula

$\frac{1}{2} \times h \times (sum \: of \: parallel \: sides(b1 + b2))$

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6 0

2 years ago

Help please!!!!!!!!!!!!!!!!!!!!!!!!11111

yaroslaw [1]

1/3

Hope this helps! :)

(I’m actually doing IXL too lol)

8 0

2 years ago

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Artyom0805 [142]

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Step-by-step explanation:

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7 0

3 years ago