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jenyasd209 [6]
3 years ago
11

3. Angle 1 and angle 2 are complementary angles. The measure of angle 1 is 18". The

Mathematics
1 answer:
Elanso [62]3 years ago
7 0

Answer:

x = 6

Step-by-step explanation:

Complementary angles always equal 90 degrees so something multiplied by 12 will have to equal something that will add up with 18 to get 90 so

12 × 6 = 72 and 72 + 18 = 90 Hope this helps you!

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3 years ago
A bag contains 6 blue marbles 10 red marbles and 9 green marbles. If 2 marbles are drawn at random without replacement what is t
umka2103 [35]

Answer:

P(1 and 2 are green) = 3/25

Step-by-step explanation:

We need to know the total number of marbles

6 Blue + 10 red + 9 green = 25 marbles

P ( 1st marble is green) = green/ total

                                       = 9/25

Since we don't put it back, there are  

6 Blue + 10 red + 8 green = 24 marbles

P ( 2st marble is green) = green/ total

                                       = 8/24  = 1/3

P(1 and 2 are green) = P(1st green) * P(2nd green)

                                  = 9/25 * 1/3

                                   = 3/25

5 0
4 years ago
A highway crossed a river that was 4.25 kilometers wide how wide is the river in decameters?
S_A_V [24]

Answer:

425 decameters

Step-by-step explanation:

1 kilometer is equal to one decameter

3 0
3 years ago
1. 2x - 3y = -1 <br> y = x - 1 <br><br> Find the substitution
irina [24]
It might be x = 4, y = 3 or x = 1 and y = -1 if it’s not I’ll re-calculate it and write it down.
6 0
2 years ago
ANSWER ASAP
Kisachek [45]

Answer:

X=12

Step-by-step explanation:

simplify both sides of the equation then isolate the variable.

5/2(12)-7=23

3/4(12)+14=23

making both equations equal to each other.

4 0
3 years ago
Read 2 more answers
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