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marusya05 [52]
3 years ago
10

Simplify 5a-(-9)-7a-12

Mathematics
1 answer:
Ad libitum [116K]3 years ago
8 0

Answer:

-2a = 0 + 3

Step-by-step explanation:

hope this helps.

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Please help I will make you the brainiest (please no link people)
Andre45 [30]

Answer:

Solution,

Radius(r)=6 cm

Height(h)=20 cm

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=3.14*(6)^2*20

=3.14*36*20

=2260.8 cm^3

Hope it helps

Good luck on your assignment

4 0
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A school replaced 20% of it computers with new ones . what the total number of computers in the school if 55 computers were repl
sladkih [1.3K]
The total is 275 because 100% divided by 20% is 5 and if 20%= 55 then that means that 55 goes into 100% 5 times so you multiply 55 by 5 to get 275. Hope I helped! Please rate me as the brainliest!
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4 years ago
Compare and contrast the perpendicular bisectors and angle bisectors of a triangle. How are they alike? How are they different?
AleksandrR [38]

<span>1 perpendicular bisector divides 1 side of the triangle into two equal lengths at a 90 degree angle. So if there's is three perpendicular bisectors, then it splits all three sides the triangles into equal lengths.

Angle bisectors splits an angle of a triangle into two even degrees.  
 </span>

<span>
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<span>EX: if it is an equilateral triangle, each angle will be sixty degrees. Therefore, ONE angle bisector will split ONE of the angles into even degrees of thirty degrees. </span>

7 0
3 years ago
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JulsSmile [24]
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Which pair of angles are same side exterior angles?
In-s [12.5K]

Answer:

Exterior angles are the ones on the outside and same side means they sit on the same side of the bisector so your answer is 1 and 8

Step-by-step explanation:

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