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agasfer [191]
2 years ago
5

1. Two angles added together to produce 90 degrees a) Supplementary b) Complementary c) Right od) Vertical​

Mathematics
1 answer:
Valentin [98]2 years ago
8 0

Answer: B: complementary

Step-by-step explanation: :)

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The wind is blowing N 35.0 degrees W at 1.60 * 10^2 mph. A plane has an engine speed of 3.20 * 10^2 mph. Where should the pilot
andreyandreev [35.5K]

Answer: 24.2° SouthWest

<u>Step-by-step explanation:</u>

First step: DRAW A PICTURE of the vectors from head to tail <em>(see image)</em>

I created a perpendicular from the resultant vector to the vertex of the given vectors so I could use Pythagorean Theorem to find the length of the perpendicular. Then I used that value to find the angle of the plane.

<u>Perpendicular (x):</u>

 cos 35° = adjacent/hypotenuse

  cos 35° = x/160

→ x = 160 cos 35°

<u>Angle (θ):</u>

sin θ = opposite/hypotenuse

sin θ = x/320

sin θ = 160 cos 35°/320

    θ = arcsin (160 cos 35°/320)

    θ = 24.2°

Direction is down (south) and left (west)

7 0
3 years ago
PLSS HELPPPP<br> Find the value of the expression a + b, when a= -2 and b= 5
Ulleksa [173]

Answer:

When a=-2, and b=5, a+b = -2+5, which is equal to 3.

Let me know if this helps!

7 0
3 years ago
Read 2 more answers
Annita, Gary, and Tara all run races. Annita has 7 less than 4 times the number of race medals as Tara. Gary has 13 more than 2
harkovskaia [24]

Answer:

4 t - 7  = 2 t+ 13  is the required equation.

The number of race medals Tara has is t = 20 medals.

Step-by-step explanation:

Let the number of medals Tara has = t medals

So, the number of medal Anita has  = 4( Medals of Tara) - 7

= 4t - 7

And the number of medals Gary has = 2 times (Medals of Tara) + 13

= 2(t)  + 13  = 2t + 13

Now, Annita and Gary has same number of medals.

⇒  4t - 7  = 2t+ 13

or, 4t - 2t  = 7 + 13

⇒ 2t  = 20

⇒ t = 20/2 = 10

or t = 10

Hence, the number of race medals Tara has is t = 20 medals

6 0
3 years ago
What is the letter v​
Nimfa-mama [501]

Answer:

Step-by-step explanation:

-81=-5(v+5)-2v                         Original equation

-81=-5v-25-2v                          Distributive property

-81=-7v-25                                Subtract like terms

-56=-7v                                     Simplify

8=v                                           Simplify

4 0
3 years ago
Which number is greater than 7.23 and less than 7.55? 7.59;7.17;7.6;7.3
Step2247 [10]
7.3 also written as 7.30
5 0
3 years ago
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