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NNADVOKAT [17]
3 years ago
9

Helpp plzz with the one on the top I will mark brainliest

Mathematics
1 answer:
Marina CMI [18]3 years ago
3 0

Answer:Its D i hope

Step-by-step explanation:

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What is the value of x in the equation ?
Eduardwww [97]

Answer:

<u>Part A:</u><u>  x = -24</u>

<u>Part B:  </u><u>n = 2</u>

Step-by-step explanation:

<u>Part A:</u>

The algebraic expression for: "StartFraction 2 Over 3 EndFraction left-parenthesis StartFraction one-half EndFraction. x plus 12 right-parenthesis equals left-parenthesis StartFraction one-half EndFraction left-parenthesis StartFraction one-third EndFraction x plus 14 right-parenthesis minus 3" will be ⇒ \frac{2}{3} (\frac{1}{2} x+12)=(\frac{1}{2} (\frac{1}{3} x+14)-3)

Multiply both sides by 6

∴ 6 * \frac{2}{3} (\frac{1}{2} x+12)=6*(\frac{1}{2} (\frac{1}{3} x+14)-3)

∴4*(\frac{1}{2} x+12)=3 (\frac{1}{3} x+14)-18

∴ 2x + 4*12 = x + 3 *14 - 18

∴ 2x - x = 3 * 14 - 18 - 4 * 12 = -24

<u>∴ x = -24</u>

============================================================

<u>Part B:</u>

The algebric expression for: "StartFraction one-half EndFraction left-parenthesis n minus 4 right-parenthesis minus 3 equals 3 minus left-parenthesis 2 n plus 3 right-parenthesis" will be ⇒ \frac{1}{2}(n-4)-3=3-(2n+3)

Multiply both sides by 2

(n-4) - 6 = 6 - 2(2n+3)

n - 4 - 6 = 6 - 4n - 6

Combine like terms

n + 4 n = 4 + 6

5n = 10

n = 10/5 = 2

<u>∴ n = 2</u>

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What is the exact number for pie?
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3.141592654... It contains infinite numbers
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75 POINTS!!! WILL MARK BRAINLIEST!!!<br><br> Find the measure of angle LNM
Harlamova29_29 [7]

<em>m∠LNM = 54°</em>

<u><em>Here is why:</em></u>

In this photo there are two important angles with very important features, a central angle and an inscribed angle.

A central angle is an angle that is in the center of the circle, so angle P is a central angle. The arc that is associated with this angle is going to be the same measure as the central angle. I have labeled this in the photo below as <u>blue</u>.

An inscribed angle is an angle that lies on the circle, so angle N is an inscribed angle. The arc that is associated with this angle will be double the amount of the inscribed angle, or the angle is half of the measure of the arc. I have labeled this in the photo below as <u>red</u>.

Since we know that the central angle is 108°, with what we know about central angles we know that arc LM is going to be 108° as well.

We also know that an inscribed angle is half the amount of the arc so...

108 ÷ 2 = 54

<em><u>m∠LNM = 54°</u></em>

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3 years ago
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