Light intensity (I) is proportional (a) to the inverse square of distance (d) of a subject from a light
source. The relationship in intensities for subjects at different distances from the same source can
be likewise seen as a ratio or proportional relationship.
I x
A proportional relationship can be mathematically expressed as follows for light intensity (I) in
lumens when a subject is at the light source.
Lumens at current distance
Lumens at origin or source
So, if a light intensity (I) is 516 lumens at the source and 4 lumens at a specific distance from the
source, what is that distance?
Round the value to the nearest tenth if necessary. You do not need to include a label for distance.
Only the number, rounded to the tenth, will be necessary.

Answer:

A is equal to 3

please mark me as brianleast

Answer:

x=17.5 we do that 5*3.5 =17.5

dang this looks so confuseing

Answer:

There is no difference

Step-by-step explanation:

The difference between the polynomials is 7y² + 8xy - 3

Polynomials are functions that have a degree of power greater than two.

According to the question we are to find the difference between the polynomials (7y2 + 6xy) - (-2xy + 3)

f(x, y) = (7y^2 + 6xy) - (-2xy + 3)

f(x, y) = 7y² + 6xy + 2xy - 3

f(x, y) = 7y² + 8xy - 3

Hence the difference between the polynomials is 7y² + 8xy - 3

Learn more on polynomials here: https://brainly.com/question/4142886

Answer:

42$

Step-by-step explanation:

Since she earns 28 $ in 4 hours

Let the hour : X

4x=28

X=28/4

X=7

Since the question want 6 hours

Then she earns

6x7=42$

Answer:

[tex]\huge \bf༆ Answer ༄[/tex]

Step-by-step explanation:

Let's solve for x ~

Multiply each term with 9 on both sides of the equation

Now, let's use Quadratic formula to find its roots ~

[tex] \sf \dfrac{ - {b}^{} \pm \sqrt{b {}^{2} - 4ac} }{2a} [/tex]

where,

Let's find the roots ~

Therefore the value if x are ~

I hope it helps ~

Answer:

Step-by-step explanation:

Answer:  49/55  

7/11 x 7/15 x 3  

49/165 * 3  

147/165  

49/55

[tex]\dfrac{7}{11} \times \dfrac{7}{15} \times 3\\\\\\=\dfrac{7}{11} \times \dfrac{7}{3\times 5} \times 3\\\\\\=\dfrac{7}{11} \times \dfrac{7}{5}\\\\\\=\dfrac{7\times7}{11 \times 5}\\\\\\=\dfrac{49}{55}[/tex]

Answer:

A

rise⇵ over run ⇄

the rise is -6 the run is 3

Answer:

not 100% but i think 196

Step-by-step explanation:

you go 134+3.6 then just divide by 0.7

Answer:

R= -0.95

Step-by-step explanation:

HOPE THIS HELPS :)

Using the function graph given, it is found that:

When a piece-wise function is given, that is, a function that has multiple definitions, the numeric value at x when the definition changes is given by the closed circle.

To learn more about the use of graphs to analyze a function, you can take a look at https://brainly.com/question/21447009

Answer:

A. better prepared to calculate financial risks

Step-by-step explanation:

Through the successful study of personal finance, an individual will be better prepared to calculate financial risks.

Personal finance is a broad word that encompasses money management, as well as saving for the future.  Personal finance also includes some of the following:

A successful study of personal finance can help in various ways such as:

Learn more about personal finance here:

https://brainly.com/question/2961383

Answer:

C) perpendicular lines

Step-by-step explanation:

please mark me as brainlest

Answer:

2/5

Step-by-step explanation:

Subtract 2x from both sides

-5y = -2x + 10

Divide both sides by -5

y = 2/5 x -2

The slope is 2/5.

[tex]50 + angle \: \: u \: \: = 115 \\ = > angle \: \: u \: = 115 - 50 \\ = > angle \: \: u \: \: = 65[/tex]

Answer:

Angle U is 65°.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer:

123.907

Step-by-step explanation:

[tex]\huge \bf༆ Answer ༄[/tex]

Here's the solution ~

Surface are of cuboid is : -

Answer:

Hes right 304.8 millimeters in a foot.

Answer:

8πcm² = 8pi cm²

Step-by-step explanation

The formula for area of a sector = ½r²θ

Where r = radius = 6cm

θ = central angle = 4pi/9 in radians = 4π/9

Area of the sector = 1/2 × 6² × 4π/9

Area of the sector = (144π/18)cm²

Area of the sector = 8πcm²

Therefore, Area of the sector =

8πcm² = 8pi cm²

We know

[tex]\\ \sf{:}\Rrightarrow sin\Theta=\dfrac{Perpendicular}{Hypotenuse}[/tex]

Now

[tex]\\ \sf{:}\Rrightarrow sinD=\dfrac{FE}{DE}[/tex]

[tex]\\ \sf{:}\Rrightarrow sinD=\dfrac{55}{73}[/tex]

Step-by-step explanation:

m = (y2-y1)/(x2-x1)

= (2-4)/(-2+6)

= -2/4

= -1/2

now

y=mx+c

4=-1/2(-6)+c (you can take any x and y from the given two points. I took from (-6,4)

or,4= 3+c

therefore, c=1

now

y=mx+c

y= -1/2x+1

or, y = 1-x/2

Answer:

  6 cm^2

Step-by-step explanation:

The area of the trapezoid is given by the formula ...

  A = 1/2(b1 +b2)h

  A = 1/2(4 cm +2 cm)(2 cm) = 6 square centimeters

Answer:

6 cm^2

Step-by-step explanation:

The area of the trapezoid is given by the formula ...

A = 1/2(b1 +b2)h

A = 1/2(4 cm +2 cm)(2 cm) = 6 square centimeters

Answer:

The solution is in the photo

Answer:

Step-by-step explanation:

Let the number of notes is x.

20% of notes is:

40% of the remainder is:

Remaining notes are:

Total of the notes:

Answer:

(LCM)

Step-by-step explanation:

Least common multiple = LCM

HOPE THIS HELPS :)

Answer:

both of them are correct !

-1/1 = 0

and -1+1 = 0, and 0/-1 equals 0

Step-by-step explanation:

Answer:

2 [tex]\frac{5}{16}[/tex]

Step-by-step explanation:

2 [tex]\frac{5}{16}[/tex] × 4 = 9 3/4

9 3/4 × 1/4 = 2 5/16

I hope this helps!

Answer:

3 1/4 feet

Step-by-step explanation:

1/4 of 9 3/4

change 9 3/4 into an improper fraction → 39/3

1/4 x 39/3 = 39/12

convert back to a mixed number by dividing 12 into 39

which goes in three times with a remainder of 3 → 3 3/12

however, 3/12 can be simplified to equal 1/4