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bazaltina [42]
2 years ago
15

The measure of an angle is 51°. What is the measure of its complement? A. 39° B. 49° C. 129° D. 139°

Mathematics
1 answer:
Margaret [11]2 years ago
3 0

Answer:

  A.  39°

Step-by-step explanation:

Complementary angles total 90°. The angle of interest is ...

  90° -51° = 39°

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the diameter of a cylinder is 33 meters, rhe height of the cylinder is 10 meters. What is the volume of the cylinder?​
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Answer:8552.98 π,

Step-by-step explanation:

π times 16.5 squared times 10

7 0
2 years ago
Find m angle dbc in the figur below
Gemiola [76]

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It like the once like Line with smaller angle (DBC) measure wouldn't 30* and by the exam the ratio of angle use by subjective by multiplying as large of angle.

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3 0
2 years ago
Round 681,858 to the nearest hundred thousand
jeka94

Answer:

700,000

Step-by-step explanation:

So really, in this question, all you care about is the 10,000ths place

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6 0
2 years ago
Read 2 more answers
Factor completely and then place the factors in the proper location on the grid.
Alika [10]
1. 8c^2-26c+15= (4c-3) (2c-5). Break the expression into groups: =(8c^2-6c)+(-20c+15). Factor out 8c^2-6c: 2c(4c-3). Factor out -5 from -20c+ 15: -5(4c-3). Lastly factor out common term (4c-3) and thats how you'll get your answer (4c-3) (2c-5).

2. common factors for 270 and 360 is 90.To find this write the factors of each and find the largest one.270: 1, 270, 2, 135, 3, 90, 5, 54, 6, 45, 9, 30, 10, 27, 15, 18360: 1, 360, 2, 180, 3, 120, 4, 90, 5, 72, 6, 60, 8, 45, 9, 40, 10, 36, 12, 30, 15, 24, 18, 20
3. The factors for 8 a3b2 and 12 ab4 is 4. because 8: 1, 2, 4, 812: 1, 2, 3, 4, 6, 12.

4. 81a^2+36a+4= (9a+2)^2. Break down the expression into groups: (81a^2+18a)+(18a+4). Factor out 9a from 81a^2 +18a: 9a(9a+2). Factor out 2 from 18a+4: 2(9a+2). so the groups you got are now 9a(9a+2)+2(9a+2). Lastley factor out common term (9a+2) to get (9a+2) (9a+2). Finally you get the answer (9a+2)^2.

5. mn-15+3m-5n= (n+3)(m-5). factor out m from nm+3m: m(n+3). Factor out -5 from -5n-15: -5(n+3). And thats how you get the number (n+3)(m-5)

Hope this helped :) Have a great day 
8 0
3 years ago
Read 2 more answers
Answers are<br> O - 17<br> O - 16<br> O - 15<br> O - (-16)
Rasek [7]
Interior angles on parallel lines cut by a traversal are supplementary (they add up to 180°). These can be identified as "c" angles, due to their shape. Knowing this, we can figure out the value of x:
7x+(2x+36)=180
7x+2x+36=180
Simplify the equation
9x+36=180
Collect like terms
9x=144
Divide by 9 on both sides to isolate x
x=16
5 0
3 years ago
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