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Citrus2011 [14]
3 years ago
12

Classify each sequence as arithmetic, geometric, or neither by dragging it into the correct box.

Mathematics
1 answer:
Elena L [17]3 years ago
3 0

Answer:from crud v4v

Step-by-step explanation:

l rfnv u4hf u4ihfcfnoijn3

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What is the size of angle x ? <br> And give a reason
Serggg [28]

Answer:

x = 75°

Reason:

m∠EFG and m∠ABC are supplementary angles

8 0
3 years ago
IB QUESTIONS:
enyata [817]

Step-by-step explanation:

Using SOHCAHTOA

\tan =  \frac{opposite}{adjacent}  \\  \tan {31}^{0} =  \frac{450}{x}  \\  \tan {31}^{0} = 0.6009 \\ 0.6009 = \frac{450}{x} \\ cross \: multiply \\ 0.6009x = 450 \\ divide \: both \: sides \: by \: 0.6009 \\ x =  \frac{450}{0.6009}x \\  = 748.9

Second Question Explanation:

a. The base angles of an isosceles triangle are equal so angle ABC is also 32°

but the sum of angles in a triangle = 180° therefore

let angle CAB be x

{32}^{0}  +  {32}^{0} +  {x}^{0} =  {180}^{0}  \\ 64 + x =  180 \\  {x}^{0}  = 180 - 64 \\  {x}^{0}  =  {116}^{0}

b. If you share a triangle in half you get 2 right angles so I'll use SOHCAHTOA to find the length AB

First the base of the right angled triangle will be 20/2 = 10

\cos =  \frac{adjacent}{hypotenuse} \\  \cos {32}^{0} =  \frac{10}{ab} \\  \cos32 = 0.8480 \\ 0.8480 =  \frac{10}{ab}  \\ ab =  \frac{10}{0.8480}  \\ line \: ab = 11.8

c. To find the are we'll need to get the height first

using the right angled triangle With base 10cm and hypotenuse 11. 8 to find the height we'll use the Pythagorean theorem

{(11.8)}^{2}  =  {x}^{2} +  {10}^{2}  \\ 1324.24 =  {x}^{2}  + 100 \\  {x}^{2}  = 139.24 - 100 \\  {x}^{2}  = 39.24  \\  \sqrt{ {x}^{2} }  =  \sqrt{39.24}  \\ x =  \sqrt{39.24 }  \\ x = 6.3

now to find the area

area \: of \: triangle =  \frac{1}{2}  \times base \times height \\   =  \frac{1}{2}  \times 20 \times 6.3 \\  \frac{20 \times 6.3}{2}  \\  = \frac{126}{2}  \\ 63 {cm}^{2}

4 0
3 years ago
To find the height of a pole, a surveyor moves 120 feet away from the base of the pole and then, with a transit 8 feet tall, mea
Vikki [24]
Refer to the figure.
Let AB be the height of the pole; CD be the height of the transit; BC is the distance from the base of the pole to the transit.

Triangle ADE is a right triangle with angle D measuring 26 degrees. Using the tangent function, we have
     tan\:26^{\circ} =\frac{AE}{120}
So, 
     AE=120\:tan\:26^{\circ}
     AE=58.53\:

Therefore, the overall height of the pole is 
     AB=58.53+8=66.53\:feet

The height of the pole is 66.53 feet. 

6 0
3 years ago
Can anybody help me? I do not understand this
horsena [70]
Can someone help me in my questions I m really stuck
7 0
3 years ago
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X ÷ 4 =6 need to find x please help
Sonja [21]

Answer:

24 make the brainliest pls

3 0
3 years ago
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