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3 years ago

2 Points

Mathematics

2 answers:

polet [3.4K]3 years ago

6 0

Answer:

This equation has one solution

Step-by-step explanation:

Number of solution depends on the involved variables so here in this equation only one variable involve so one solution exist.

victus00 [196]3 years ago

6 0

A!!!!!! Don’t pick it I’m not good at math

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3 years ago

−6x + 5y = 16x + 4y = −10

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3 years ago

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8x - 4<br> 160°<br> Help me please seems like no one is answering me lol

Vlad1618 [11]

8x - 4 = 160°. ( Angles Of Two Parallel Lines intersected by a Straight Line )

8x - 4 = 160

8x = 160 - 4

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3 0

3 years ago

The light intensity I (in lumens) at a depth of x feet in Lake Elizabeth is given by the formula log (StartFraction Upper I Ove

antiseptic1488 [7]

Answer:

The light intensity at a depth of 24 feet is 3.0143 lumens.

The light intensity will be 7 lumenus at the depth of 9.3732 feet approximately.

Step-by-step explanation:

Consider the provided formula.

$log(\frac{I}{12})=-0.025x$

Where I is the intensity of light and x is the depth.

Part (A) Find the light intensity at a depth of 24 feet.

Substitute x=24 in above formula.

$log(\frac{I}{12})=-0.025(24)$

$log(\frac{I}{12})=-0.6$

$\frac{I}{12}=10^{-0.6}$

$\frac{I}{12}=0.2512$

$I=3.0143$

Hence, the light intensity at a depth of 24 feet is 3.0143 lumens.

Part (B) At what depth is the light intensity 7 lumens

Substitute I=7 in above formula.

$log(\frac{7}{12})=-0.025x$

$-0.23433=-0.025x$

$0.23433=0.025x$

$x=\frac{0.23433}{0.025}$

$x=9.3732$

Hence, the light intensity will be 7 lumenus at the depth of 9.3732 feet approximately.

3 0

3 years ago

Select the correct answer. What is the inveSelect the correct answer.

Oksi-84 [34.3K]

Answer:

x + 3 / 2 = y

Step-by-step explanation:

to change a function to its inverse we need to do three basic things

1. change f(x) to y

so for the example i gave which is f(x) = 2x - 3; this will now be

y = 2x - 3

2. we need to switch the position of the x's and y's, that means x becomes y and y becomes x

x = 2y - 3

3. finally we make y the subject of the formula

x + 3/ 2 = y, this new expression for y is the inverse of the function and can be written as

f^-1(x) = x + 3/2

7 0

4 years ago