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Crazy boy [7]
3 years ago
10

How to find the measure of angles?

Mathematics
1 answer:
nevsk [136]3 years ago
7 0

Answer:

The best way to measure an angle is to use a protractor. To do this, you'll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle's measurement to the nearest degree.

Step-by-step explanation:

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Diana works at a clothing store. She sold 1/3 of the total shirts on Tuesday and 5/12of the total number of blue shirts on Wedne
Gre4nikov [31]

Answer:

The fraction of blue shirts that she sold is \frac{3}{4}

Step-by-step explanation:

She sold:

1/3 on Tuesday.

5/12 on Wednesday.

What fraction of blue shirts did she sell on Tuesday and Wednesday?

Sum of fractions.

The lesser common multiplier between 3 and 12, which is 12.

So

\frac{1}{3} + \frac{5}{12} = \frac{\frac{12*1}{3} + \frac{12*5}{12}}{12} = \frac{4 + 5}{12} = \frac{9}{12} = \frac{3}{4}

The fraction of blue shirts that she sold is \frac{3}{4}

8 0
3 years ago
Does anybody know the answer ?
madreJ [45]
Nope sorry :////////
8 0
3 years ago
In 2019, approximately 97.4% of all the runners who started the Boston Marathon (in Boston, Massachusetts, USA) were able to com
PtichkaEL [24]

Answer:

The probability that exactly 97 of them finished the marathon​ is 0.221.

Step-by-step explanation:

We are given that in 2019, approximately 97.4% of all the runners who started the Boston Marathon were able to complete the 42.2 km race.

100 runners are chosen at random.

The above situation can be represented through the binomial distribution;

P(X = x) = \binom{n}{r} \times p^{r} \times (1-p)^{n-r};x = 0,1,2,3,......

where, n = number of trials(or samples) taken = 100 runners

           r = number of success = exactly 97

           p = probability of success which in our question is the probability

                 that runners finished the marathon​, i.e; p = 0.974

So, X ~ Binom(n = 100, p = 0.974)

Now, the probability that exactly 97 of them finished the marathon​ is given by = P(X = 97)

         P(X = 97) = \binom{100}{97} \times 0.974^{97} \times (1-0.974)^{100-97}

                          = 161700 \times 0.974^{97} \times 0.026^{3}

                          = 0.221

Hence, the required probability is 0.221.

6 0
3 years ago
What is the distance ab rounded to the nearest tenth when a=(-1,2) and b=(1,-2). ​
Tom [10]

Answer:

it gives you the formula, so all you have to do is plug in the coordinates

Step-by-step explanation:

7 0
3 years ago
Reply with quote<br> {(-1,3),(0,5),(1,7),(2,9)} , identify the domain and range
Contact [7]

The domain is -1,0,1,2. The range is 3,5,7,9.

4 0
3 years ago
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