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lozanna [386]
3 years ago
10

If the angles 2xº and 4yº are complementary, find the value of x + 2y.

Mathematics
1 answer:
ivolga24 [154]3 years ago
3 0

Answer:

Solution given:

the angles 2xº and 4yºare complementary

so

2x+4y=90°

dividing both side by 2we get

x+2y=45°

<u>the value of x + 2y</u><u> </u><u>i</u><u>s</u><u> </u><u>4</u><u>5</u><u>°</u><u>.</u>

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Charra [1.4K]
3(4) + 1
= 12 + 1
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Given the event​ "a die lands with a 6 on​ top", which of the following is the complement of this​ event? Choose the correct ans
Veronika [31]

Answer:

The die lands with a​ 1, 2,​ 3, 4, or 5 on top ⇒ answer D

Step-by-step explanation:

- Complementary events are two outcomes of an event that are the

 only two possible outcomes

- The Complement Rule states that the sum of the probabilities of

  an event and its complement must equal 1

- P(A) + P(A') = 1

- Lets solve the problem

- The event A is:

  " a die lands with a 6 on​ top "

∴ P(A) = \frac{1}{6}

∵ P(A) + P(A') = 1

∴ \frac{1}{6} + P(A') = 1

- Subtract \frac{1}{6} from both sides

∴ P(A') = \frac{5}{6}

∵ The die has six numbers from 1 to 6

∴ The other numbers than 6 are 1 , 2 , 3 , 4 and 5

∴ The complement of event A is:

   " A die lands with 1 , 2 , 3 , 4 or 5 "

* The complement of the event is:

 The die lands with a​ 1, 2,​ 3, 4, or 5 on top

8 0
3 years ago
Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train
mylen [45]
Train A:

Distance (s) = 420 miles
Time (t) = 3 hours
Speed (v) = distance ÷ time = 420 ÷ 3 = 140 miles/hour

Train B: 

Distance (s) = 420 miles
Time (t) = 2.25 hours
Speed (v) = distance ÷ time = 420 ÷ 2.25 = 186.7 miles/hour
5 0
3 years ago
Read 2 more answers
What is the recursive rule for this geometric sequence?
Alekssandra [29.7K]

Answer:

1

Step-by-step explanation:

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7BW%7D%20%3D%202" id="TexFormula1" title="\sqrt[4]{W} = 2" alt="\sqrt[4]{W} = 2
solmaris [256]

Answer:

<h2>W = 16</h2>

Step-by-step explanation:

<h3>\sqrt[4]{W}  = 2 </h3>

To find W raise each of the sides of the equation to the power 4 to make W stand alone

That's

<h3>( { \sqrt[4]{W} })^{4}  =  {2}^{4}</h3>

We have

W = 2⁴

We have the final answer as

<h3>W = 16</h3>

Hope this helps you

6 0
3 years ago
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