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agasfer [191]
3 years ago
13

If the measure of an angle is twenty less than the measure of its complement, what is the measure of the angle?

Mathematics
1 answer:
velikii [3]3 years ago
5 0
That angle would be 35 degrees. 

Complementary angles equal 90 degrees. So you can create an equation with x as the angle and its complement being x + 20. Set that equal to 90 and solve. 
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a culture started with 2000 bacteria. after 6 hours it grew to 2400 bacteria. predict how many bacteria will be present after 16
valentina_108 [34]
Hi!

Let's find how much bacteria it grows per hour. 
2400 - 2000 = 400
bacteria per (divided by) hour
400/6 = 66.7
After 16 hours...
66.7 x 16 = 1067.2
Plus the original amount of bacteria
1067.2 + 2400 = 3467.2

The answer is 3067.2

Hope this helps! :)
-Peredhel
8 0
3 years ago
What is the 8th term of the sequence 1, 3, 9, 27, 81,... .
slega [8]

9514 1404 393

Answer:

  2187

Step-by-step explanation:

This geometric sequence has a first term of 1 and a common ratio of 3. Its general term can be written as ...

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Then the 8th term is ...

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4 0
3 years ago
Complete to get an equal ratio<br> 3x/y = ? /2y
amid [387]

Answer:

6x

Step-by-step explanation:

3x/y=x/2y

Since 2y is 2X greater than y, 6x is 2X greater than 3x.

So,

The answer is 6x.

5 0
3 years ago
Use your knowledge on the triangle proportionality theorem to find the missing side length indicated. Be sure to explain the pro
ikadub [295]

Answer:

? = 4.29

Step-by-step explanation:

Remark

Let  x be the question mark. You get the proportionality by using the dimensions of the little triangle to the dimensions of the large triangle.

Equation

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14/18 = 15/(x + 15)                          Cross multiply

14*(x + 15) = 18 * 15                        Simplify the right

14(x + 15) = 270                             Divide by 14

x + 15 = 270 / 14

x + 15 = 19.29                               Subtract 15 from both sides

x = 19.29 - 15

x = 4.29    

6 0
3 years ago
The probability of an event is 1. What do you know about the event?
Harrizon [31]

Answer:  A probability of 1 means the event is certain to happen.  A probably of zero means the event is certain not to happen.

3 0
3 years ago
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