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ch4aika [34]
3 years ago
14

I need help with this ​

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer: 216 in

Step-by-step explanation: I used the formula A=1/2(b1+b1)h and I filled it in by doing A=1/2(6+12)6 and then I divided the height by 1/2 and i multiplied 72 by 3 which is 216 in.

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In February Roger spend 30 hours watching Netflix in March has been 20% less time watching what is the amount of time he's spent
nikdorinn [45]

Roger spent 24 hours on Netflix in March

Step-by-step explanation:

Given

Number of hours spent on Netflix in February = N_f = 30

number of hours spent on Netflix in March = N_m = ?

We know that Roger spent 20% less hours in march, First of all we have to calculate the 20% of 30

So,

= 20\%\ of\ 30\\= 0.20 * 30\\= 6

So he spent 6 hours less than February

N_m = N_f - 6\\N_m = 30 - 6\\= 24

Hence,

Roger spent 24 hours on Netflix in March

Keywords; Percentage, percent

Learn more about percentage at:

  • brainly.com/question/559394
  • brainly.com/question/557209

#LearnwithBrainly

4 0
3 years ago
Write 0.00147 in standard form
tekilochka [14]
Hey

0.00147 = 147 / 100000
5 0
4 years ago
Read 2 more answers
you need about 1 one half hours to setup a computer work station . How many hours should it takes to set up 7
sweet [91]
So it takes half an hour to set up a computer work station. half an hour = 30 minutes. so we know 2 half hours = 1 hour. so 7-2=5 so 1 hour 5-2=3 s0 that makes 2 hours. 3-2=1 so that would be 3 and a half hours or 3.5
7 0
3 years ago
The rate at which customers are served at an airport check-in counter is a Poisson process with a rate of 8.1 per hour. The prob
just olya [345]

Answer:

Value of a is 0.667                      

Step-by-step explanation:

We are given the following in the question:

The rate of customer at an airport follows a Poisson distribution with

\lambda = 8.1

The normal approximation of Poisson distribution can be done in the following manner

\mu = \lambda = 8.1\\\sigma^2 = \lambda = 8.1\\\sigma = \sqrt{8.1} = 2.85

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of a such that

P(X_p > 50)=P(Z > a)

More than 50 customers per 5 hours means more than 10 customer per hour.

Thus, we can write

P( x > 10) = P( z > \displaystyle\frac{10 - 8.1}{2.85}) = P(z > 0.667)

Therefore, value of a is 0.667

4 0
3 years ago
Which side lengths could NOT form a triangle?
Aleks [24]
1. 5+6>8
6+8> 5
5+8> 6

2. 10+10> 2
10+2> 10
10+2> 10

3. 19+ 34> 15
19+ 15 > 34 not correct
34+15 > 19

4. 3+16 > 14
3+14> 16
14+16 >3

Answer is 3 <33
3 0
2 years ago
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