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2 years ago

Which expression represents 12 times a number, n, minus 6?

Mathematics

2 answers:

Ulleksa [173]2 years ago

6 0

Answer:

A. 12n - 6

Step-by-step explanation:

12 times a number which is n so

12n then minus 6 ,

12n-6

hope this helps

Gelneren [198K]2 years ago

5 0

A is the answer I think

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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

2 years ago

Solve for u. 31.25 = u/5

ipn [44]

Answer:

u = 156.25

Step-by-step explanation:

Step 1: Write equation

31.25 = u/5

Step 2: Solve for <em>u</em>

Multiply both sides by 5: 156.25 = u
Rewrite: u = 156.25

Step 3: Check

<em>Plug in u to verify it's a solution.</em>

31.25 = 156.25/5

31.25 = 31.25

3 0

3 years ago

Read 2 more answers

In the standard (x, y) coordinate plane, what is the distance, in coordinate units, between (-3, -2) and (5, 5)?

Sav [38]

Answer:

10.630

Step-by-step explanation:

$\sqrt(x_{2} -x_{1})^{2} + (y_{2} -y_{1})^{2}$

$\sqrt( 5-(-3)^{2} + (5- (-2)^{2}$

(5 - ( - 3)^2 = 64

(5 - ( -2)^2 = 49

49 + 64

113

$\sqrt113$

10.630

I hope this helps

8 0

3 years ago

Help please I need it please please help me in it

Snezhnost [94]

Answer:

115.08

Step-by-step explanation:

6 0

2 years ago

-3/7 greater or less than -2/5

Phantasy [73]

-3/7 is greater than -2/5

how I found this do 3÷7 and this will give you a decimal of 0.4285. While doing 2÷7 equals 0.4

hope this helps

8 0

3 years ago