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elena55 [62]
3 years ago
11

What number is the opposite of 90?

Mathematics
1 answer:
zloy xaker [14]3 years ago
5 0

Answer:

-90

Step-by-step explanation:

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Angles 1 and 2 are complementary, and angle 1=3x+3 and angle 2=10x-4, find the degree measure of each angle
tensa zangetsu [6.8K]

Answer:

The measure of the angles:

24°  and   66°

Step-by-step explanation:

Complementary angles sum 90°

then:

(3x + 3) + (10x-4) = 90

3x + 10x + 3 - 4 = 90

13x - 1 = 90

13x = 90+1

13x = 91

x = 91/13

x = 7°

then:

  • angle 1:

3x+3 = 3*7 + 3 = 21+3 = 24°

  • angle 2

10x - 4 = 10*7  - 4 = 70 - 4 = 66°

Check:

66° + 24° = 90°

7 0
3 years ago
How many terms are in the simplified expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2
Vilka [71]

there are 6 terms in the simplified expression


4 0
3 years ago
Read 2 more answers
Please help! the question is in the attarchment!
DaniilM [7]

Answer:

1000( l + b)

Step-by-step explanation:

2(500l + 500b)

=500 (2(l+b))

=1000

8 0
3 years ago
Please help on this. I am confused.
neonofarm [45]
The answer is 2x^2-3x-2.

To solve this, you take f(x)-g(x) which is 2x^2-5-3x+3. This simplifies to 2x^2-3x-2.
3 0
3 years ago
6th grade math! Help me if you can! C;
xxMikexx [17]

<h3><u>Original Rate</u>                     <u>Unit Rate</u>                   </h3>

    90 Miles                                 45 Miles                  

     2 Hours                                   1 Hour    

Answer:  <u><em>The Train  travels 45 miles in one hour.</em></u>

How i got the answer? I divied the 90 by 2 because we already know the miles/hour for 2 hours and we need 1 hour.

<em><u>Give Brainliest If You Please</u></em>

5 0
3 years ago
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