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Papessa [141]
2 years ago
15

The expression is 12n -4 = -7 solve for n

Mathematics
2 answers:
VARVARA [1.3K]2 years ago
6 0
The answer for N is 1/4
vredina [299]2 years ago
5 0

Answer:

Hey mate hope its help you....

please mark it as a brainlist answer....

and follow me...... only if you want then......

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its 76 degrees fahrenheit at the 6000-foot level of a mountain, and 49 degrees Fahrenheit at the 12000-foot level of the mountai
brilliants [131]

T = \frac{-9}{2}x + 103 is the linear equation to find the temperature T at an elevation x on the mountain, where x is in thousands of feet.

<em><u>Solution:</u></em>

The linear equation in slope intercept form is given as:

T = cx + k ------ (i)

Where "t" is the temperature at an elevation x

And x is in thousands of feet

<em><u>Given that its 76 degrees fahrenheit at the 6000-foot level of a mountain</u></em>

Given, when c = 6 thousand ft and T = 76^{\circ} fahrenheit

This implies,

From (i)

76 = c(6) + k

76 = 6c + k

⇒ k = 76 - 6c  ----- (ii)

<em><u>Given that 49 degrees Fahrenheit at the 12000-foot level of the mountain</u></em>

Given, when c = 12 thousand ft and T = 49^{\circ} fahrenheit

This implies,

From (i)

49 = c(12) + k

49 = 12c + k

Substitute (ii) in above equation

49 = 12c + (76 - 6c)

49 = 12c + 76 - 6c

49 - 76 = 6c

6c = -27

c = \frac{-9}{2}

Substituting the value of c in (ii) we get

k = 76 - 6( \frac{-9}{2})\\\\k = 76 + 27 = 103

Substituting the value of c and k in (i)

T = \frac{-9}{2}x + 103

Where "x" is in thousands of feet

Thus the required linear equation is found

5 0
3 years ago
HELP PLEASE!!!❗️❗️❗️
Aleksandr [31]
8,-7 thats ur answer
8 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH MY MATH ASAP PLEASE!!!!​
Ivanshal [37]

Answer:

6

Step-by-step explanation:

Hello,

The two triangles are <u>similar</u> and x is <u>positive</u>, <u>different from 0</u>, so we can write.

\dfrac{x}{9}=\dfrac{12}{x}\\\\x^2=12\times 9\\\\ x = \sqrt{4\times 3 \times 9}=2\times 3 \times \sqrt{3}\\\\ \boxed{\sf \bf x=6\sqrt{3} }

Thanks

8 0
3 years ago
What is the surface area in square meters of a cylinder with a radius of 3.4 meters and a height of 2.8 meters. Please show work
ohaa [14]
132.45 m^2..........
5 0
3 years ago
What is 8 + 9 + -10 - 3x simplified?​
aliina [53]

Answer:

7-3x

Step-by-step explanation:

8+9=17

17-10=7

7-3x

5 0
2 years ago
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