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3 years ago

PLS HELP WITH THIS I NEED A GOOD GRADE

Mathematics

1 answer:

Minchanka [31]3 years ago

4 0

Step-by-step explanation:

<h2>4.5 approximately is the answer.</h2>

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Macam mane nak buat?

Svet_ta [14]

Harap awak faham hehehe kalau jawapan betul bagi brainliest yer hehehe

8 0

3 years ago

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

2 years ago

Among 500 freshmen pursuing a business degree at a university, 311 are enrolled in an economics course, 243 are enrolled in a ma

Allushta [10]

Solution :

Let A = Economics, B = Mathematics

n(A) = 311, n(B) = 243, $n(A \cap B) = 135$

a). So, $n(A \cup B) = n(A) +n(B) - n(A \cap B)$

= 311 + 243 - 135

= 419

b). n(A only) = 311 - 135

= 176

n(B only) = 243 - 135

= 108

Exactly one of these two courses

$=\frac{176+108}{500}$

= 0.568

c). Neither economics nor mathematics

$=\frac{500-419}{500}$

$=\frac{81}{500}$

= 0.162

7 0

3 years ago

I know that 1 can of paint covers an area of 32 square feet. The dimensions of the wall is 12ft x 10ft. How many cans of paint w

DIA [1.3K]

4 cans with .25 of a can left

8 0

3 years ago

I need to know what is expected

bearhunter [10]

Answer:

$\frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{ \frac{?}{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?} }{?}$

Is it cool?

8 0

3 years ago