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Rom4ik [11]
3 years ago
14

2. It takes 1 3/8 minutes to wrap a parcel and 1/2 minute to address it. How many minutes does it take to:

Mathematics
1 answer:
Drupady [299]3 years ago
8 0

Answer:

45/2

Step-by-step explanation:

U first have to change the mixed number to improper fraction and find the least common multiple

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Alex wants to paint the four walls of her new office. The room has dimensions 18 feet by
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Answer:

58

Step-by-step explanation:

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3 years ago
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(WILL GIVE BRAINLIEST) In right ∆ABC with m∠B=30°, AC = 4. Find HB
goblinko [34]

Answer:

HB would be 90 degrees

Step-by-step explanation:

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3 years ago
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Which of the following expressions is equal to 3x^2 + 27
Kisachek [45]
Factor: 
3x^2 + 27
= 3(x^2  + 9)
Answer is 3(x^2 + 9), when factored.


A) (3x + 9i)(x + 3i)
= (3x + 9i)(x + 3i)
= (3x)(x) + (3x)(3i) + (9i)(x) + (9i)(3i)
= 3x^2 + 9ix + 9ix + 27i^2
= 27i^2 + 18ix + 3x^2



B) (3x - 9i)(x + 3i)
= (3x +  - 9i)(x + 3i)
= (3x)(x) + (3x)(3i) + ( - 9i)(x) + (- 9i)(3i)
= 3x^2 + 9ix - 9ix - 27i^2
= 27i^2 + 3x^2


C) (3x - 6i)(x + 21i)
= (3x +  - 6i)(x + 21i)
= (3x)(x) + (3x)(21i) + (- 6i)(x) + ( -6i)(21i)
= 3x^2 + 63ix - 6ix - 126i^2
=  - 126i^2 + 57ix + 3x^2






D) (3x - 9i)(x - 3i)
=  (3x +   - 9)(x +  - 3)
= (3x)(x) + (3x)( - 3i) + (- 9)(x) + ( - 9)( - 3i)
= 3x^2 - 9ix - 9x + 27i
= 9ix + 3x^2 + 27i - 9x









Hope that helps!!!

8 0
3 years ago
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What is the radian measure of 210 angle 
Gnesinka [82]
The answer is 3.66519.
8 0
3 years ago
3b-2a <br>Need help on assignment ​
Bond [772]
Answer: -2a + 3b

Solution:

3b - 2a
Simplify

= -2a + 3b
8 0
2 years ago
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