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Helen [10]
3 years ago
13

What is the domain of the rational expression x-4/2x-6

Mathematics
1 answer:
Natasha2012 [34]3 years ago
4 0

Answer:

Interval Notation:  ( − ∞ , 3 ) ∪ ( 3 , ∞ )

Set-Builder Notation:  { x | x ≠ 3 }

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Select the correct answer. For what value of x is sin x = cos 19º, where 0°< x < 90°? OA. 38° ° O B. 71° OC. 26° O D. 19°​
Lerok [7]

Answer:

x = 71°

Option B is correct answer.

Step-by-step explanation:

We need to find for what value of x is sin\: x = cos 19^{\circ}, where 0°< x < 90°?

Solving:

sin\: x = cos\: 19^{\circ}\\Finding \:cos\: 19^{\circ}=0.94551\\Putting\:value:\\sin\:x=0.94551\\Now\:taking\:sin\:inverse\\x=sin^{-1}(0.94551)\\x=71^{\circ}

So, we get x = 71°

Option B is correct answer.

5 0
2 years ago
Equation which i dont like math not no brainly my question 3 (k-12)=k-30
vaieri [72.5K]
3 (k-12) = k-30

3k - 36 = k - 30

3k - k = -30 + 36

2k = 6

k = 3
7 0
3 years ago
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notsponge [240]
So covert 4 minutes to seconds. Which would be 4 times 60 which would mean there would be 240 seconds. So you would multiply 15 x 240 = 3,600 feet. Then multiply 22 x 240 = 5,280 feet. 5,280 - 3,600 = 1,680 feet.

ANSWER:
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5 0
3 years ago
Find the area of the figure
NikAS [45]

Answer:

14 square meters

Step-by-step explanation:

3*2=6

2*4=8

6+8=14

8 0
3 years ago
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If a binomial trial has a success of .3, how many successes would you expect out of 500 trails
melomori [17]

Answer:

gfs

Step-by-step explanation:

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2 years ago
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