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olga55 [171]
3 years ago
13

Please answer this correctly

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0

Answer:

185.04 mm

Step-by-step explanation:

The perimeter is 1/2 of the circumference plus the diameter

We need to go around the semicircle on the outside plus across the middle

1/2 C + d

1/2 2*pi * r  + 2r

pi *r +2r

3.14 (36)   + 2 (36)

113.04+72

185.04

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What is the slope intercept form of 12x-5y=-44
Lilit [14]

Answer:

y = \frac{12}{5} x + \frac{44}{5}

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

rearrange 12x - 5y = - 44 into this form

subtract 12x from both sides

- 5y = - 12x - 44 ( divide all terms by - 5 )

y = \frac{12}{5} x + \frac{44}{5} ← in slope- intercept form


4 0
3 years ago
Michael paid $16.40 for 20.5 centimeters of wire. Find the unit price in dollars per centimeter. If necessary round your answer
Korvikt [17]

Answer:

$0.80

Step-by-step explanation:

$16.40 ÷ 20.5 = 0.80

You can check your work by doing :

20.5 cm of wire × $0.80 = $16.40

4 0
2 years ago
The circle graph shows how Lila spent her after-school time during the month of October.
mestny [16]

Using proportions, it is found that she spent 25.76 hours at Yoga.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount.

Researching the problem on the internet, it is found that the circle graph shows that she spent 28% of her time of 92 hours on yoga, hence:

h = 0.28 x 92 = 25.76.

Hence, she spent 25.76 hours at Yoga.

More can be learned about proportions at brainly.com/question/24372153

6 0
1 year ago
Below an equation is modeled . What value of x makes this equation true?
Strike441 [17]
5x + 6 = 1
Subtract 6 from both sides.
5x = -5
Divide from both sides.
x = -1 (ANSWER)

hope this helps!!
5 0
3 years ago
A walk-in medical clinic believes that arrivals are uniformly distributed over weekdays (Monday through Friday). It has collecte
allsm [11]

Answer:

The degrees of freedom are given by;

df =n-1= 5-1=4

The significance level is 0.1 so then the critical value would be given by:

F_{cric}= 7.779

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays

Step-by-step explanation:

For this case we have the following observed values:

Mon 25 Tue 22 Wed 19 Thu 18 Fri 16 Total 100

For this case the expected values for each day are assumed:

E_i = \frac{100}{5}= 20

The statsitic would be given by:

\chi^2 = \sum_{i=1}^n \frac{(O_i-E_i)^2}{E_i}

Where O represent the observed values and E the expected values

The degrees of freedom are given by;

df =n-1= 5-1=4

The significance level is 0.1 so then the critical value would be given by:

F_{cric}= 7.779

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays

5 0
2 years ago
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