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3 years ago

12

The circumference of a circle is 407 cm. Find the diameter, the radius, the length of an arc of 100°, and the area of a sector w

ith central angle 100°.

1 answer:

iogann1982 [59]3 years ago

4 0

Answer: 407cm =

100° =

100° =

I hope this helps :)

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Find the x and y intercepts of the graph of the linear equation 3x+6y=24

steposvetlana [31]

Answer:

x =(0,6) y=(0,8)

Step-by-step explanation:

3x+6y=24

make x =0

3(0)+6y=24

6y=24

y=6 x=0

8 0

3 years ago

Help Please 25 points for real answers

trasher [3.6K]

1. B

2. D

3. C= πD
a) 204π or 641 cm
A= π r²
b) π (102)²
10404π squared cm or 32669 squared cm

4. C

5. D

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4 years ago

The<br> of -6 is 6, because it is 6 units from zero on

Ilya [14]

Answer: The <u>absolute value</u> of -6 is 6 because it is 6 units away from zero on <u>the number line</u>

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|-6| = 6

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8 0

2 years ago

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

$\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}$

Therefore,

$\angle E=\cos^{-1}(-0.3333)$

$m\angle E=109.5\°$ ............As it is in Second Quadrant

Therefore,

$m\angle E=109.5\°$

4 0

3 years ago

2x-7=117 what is the value of x

Tcecarenko [31]

$2x - 7 = 117$

Add 7 to both sides

$7 + 2x - 7 = 117 + 7$

At the left hand side 7 will cancel 7

At the right hand side 7 will add up

$2x = 124$

Divide through by 2

$x = \frac{124}{2}$

simplify the fraction

$x = 62$

4 0

3 years ago