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3 years ago

9

Please help me with this question

2 answers:

777dan777 [17]3 years ago

3 0

Answer:

51

Step-by-step explanation:

102 divided by 2 is 51

Evgen [1.6K]3 years ago

3 0

Answer:

102

Step-by-step explanation:

Since the central angle of a circle will have the same angle measure as its corresponding arc, the angle measure of x is 102 degrees. Hope this helps!

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Point M is on line segment overline LN . Given MN = 3x , LN = 4x + 9 , and LM = 2x + 7 determine the numerical length of LM .

xxTIMURxx [149]

Answer: 11

Step-by-step explanation:just trust me

7 0

3 years ago

3cot^(2 )x-1=0<br><br> Pls Help

Elina [12.6K]

Answer:

$x=\frac{\pi }{6} ,\frac{7\pi }{6}$

Step-by-step explanation:

$3*cot^2x-1=0\\\\3*cot^2x=1\\\\cot^2x=\frac{1}{3} \\\\cot(x)=\sqrt{\frac{1}{3} } \\\\cot(x)=\frac{1}{\sqrt{3} } \\\\\frac{1}{tan(x)}=\frac{1}{\sqrt{3} } \\\\tan(x)=\sqrt{3} \\$

x=tan^-1( $\sqrt{3}$ )

It has to be in Quadrant 1 $\frac{+}{+} =+$ or 3 $\frac{-}{-}=+$ for positive.

$x=\frac{\pi }{6} ,\frac{7\pi }{6}$

Unless that incorrect due to tan(x) range is $-\frac{\pi }{2} \leq x\leq \frac{\pi }{2}$ . Then the only answer is $x=\frac{\pi }{6}$

5 0

3 years ago

An object starts at position 12 on a horizontal line with a reference point of 0. What is the position of the object if it

poizon [28]

Answer:

The answer would be B

3 0

3 years ago

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A plumber charges $25 to come to a home, and $50 per hour for a repair. Which equation gives the total cost, y, for a repair tha

Dmitry_Shevchenko [17]

The answer is b)

15*x+25=y

4 0

3 years ago

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Find the lateral area and surface area of a cone with a radius of 12 and a height of 21

marishachu [46]

Answer:

The Lateral Surface Area is 911.32 square unit and

Total Surface Area is 1361.7 square unit.

Step-by-step explanation:

For a given Cone

Radius (r) = 12

Height (h) = 21

<u>For Lateral Surface Area</u>

<h3><u>Formula</u><u>:</u> </h3>

A = πr√r² + h²

A = 3.14 × 12 × √(12)² + (21)²

A = 3.14 × 12 × √144 + 441

A = 3.14 × 12 × √585

A = 37.68 × 24.18

A = 911.32 square unit

Now,

<u>For</u><u> </u><u>Total</u><u> Surface Area</u>

<h3><u>Formula:</u></h3>

A = πrl + πr²

For Slant height (l)

l² = r² + h²

l² = (12)² + (21)²

l² = 144 + 441

l² = 585

l = 24.18

So,

A = πrl + πr²

A = πr(l + r)

A = 3.14 × 12 × (24.14 + 12)

A = 3.14 × 12 × 36.14

A = 1361.7 square unit

Thus, The <u>Lateral Surface Area</u> is 911.32 square unit and <u>T</u><u>otal Surface Area</u> is 1361.7 square unit.

<u>-TheUnknownScientist</u>

6 0

3 years ago

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