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4 years ago

The proper sequence to use in solving 3x - 2 = 60 is:

Mathematics

1 answer:

IrinaVladis [17]4 years ago

8 0

If you follow the steps of PEMDAS it should be Multiply by 3,subtract 2.

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The intensity of a light source at a distance is directly proportional to the strength of the source and inversely proportional

jolli1 [7]

Answer:

x= $\frac{16}{\sqrt[3]{2}+1 }$

Step-by-step explanation:

Q= illumination

I = intensity

Q= I/d^2

Q_total = $\frac{I_1}{d_1^2}+\frac{I_2}{d_2^2}$

= $\frac{I}{x^2}+\frac{2I}{(16-x)^2}$

now Q' = 0

⇒I ${-\frac{2}{x^3}}+\frac{4}{(16-x)^3}$

x= $\frac{16}{\sqrt[3]{2}+1 }$

[/tex] $\frac{1}{x^3} = \frac{2}{(16-x)^3}$

x= $\frac{16}{\sqrt[3]{2}+1 }$

is the required point

5 0

3 years ago

Solve log (x + 1) = –x2 + 10 by graphing

Anit [1.1K]

Your answer would be x = 3.0645

CHECK
log (3.0645 + 1) ?=? -(3.0645)2 + 10
log 4.0645 ?=? -9.3912 + 10
0.609 ?=? 0.609

Hope this helps!

So in short your answer is x = 3.0645

3 0

3 years ago

Read 2 more answers

You bought a Nissan Xterra for $25,000. The car depreciates at a rate of

cestrela7 [59]

Answer:

Why i dont know

Step-by-step explanation:

4 0

3 years ago

Josh plays a game where he flips a coin and rolls a number cube. List all of the possible outcomes below.

Bad White [126]

Heads 1
Tails 1
Heads 2
Tails 2
Heads 3
Tails 3
Heads 4
Tails 4
Heads 5
Tails 5
Heads 6
Tails 6

3 0

3 years ago

Read 2 more answers

Last one, use trigonometry to help you solve for y given that one side is 4 and there is an angle of 50 degrees.

Ostrovityanka [42]

Answer:

y = 6.22

You can solve this in two ways.

1.) Use SOH CAH TOA:

I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.

$\cos(angle) = \frac{adjacent}{hypotenuse}$