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ohaa [14]
2 years ago
6

Answer for brainliest

Mathematics
1 answer:
algol132 years ago
7 0

Answer:

x = 2

Step-by-step explanation:

The measure of minor arc FD is 51x + 1

The measure of major arc FD is 360 - (51x + 1)

m<E = ½[m(major arc FD) - m(minor arc FD)]

36x + 5 = ½[360 - (51x + 1) - (51x + 1)]

72x + 10 = 360 - 51x - 1 - 51x - 1

174x = 348

x = 2

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Cody started a fire in a field. The fire was expanding outward in all directions forming a larger and larger circle. The radius
Dimas [21]

Answer:

<h2> 55.10min </h2>

Step-by-step explanation:

This problem is on the mensuration of flat shapes.

given that the initial radius before Cody alerted the fire department is

10 ft

Then we can calculate the area of the fire as

Area= πr^2

Area=3.142*(10)^2

Area=3.142*100

Area=314.2ft^2

Also, given that the area of the circular fire has grown to 45401 square feet

let us solve for the radius first, then we can calculate the time taken since the radius was increasing by 2 ft/min

let the radius of the large fire be R

45401=πR^2

R^2=45401/3.142

R^2=14449.714

square both sides we have

R=√14449.714

R=120.2ft

The difference between the radius of the initial fire and the large fire is

R-r=120.2-10

    =110.2ft

Hence the time taken can be calculated as

time= 110.2/2

time=55.10min

8 0
3 years ago
In a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death penalty for a person convicte
Nimfa-mama [501]

Answer:

2239

Step-by-step explanation:

Given-

Percent of peopl polling yes to the question​ "Are you in favor of the death penalty for a person convicted of​ murder?" = 37%

Margin error in the poll  = 2%

Confidence Interval = 95%

The alpha value is 1 -0.95 =0.05

The z_\frac{\alpha }{2} for Confidence Interval of 95% = 0.196

The sample size is given by

n = p*q*(\frac{z}{e} )^2

Where,

p = \frac{37}{100}  = 0.37 q = 100-0.37 = 0.63 e =2/100 = 0.02 z = 1.96 (critical value)n = p*q*(\frac{z}{e} )^2 = 0.37 * 0.63(\frac{1.96}{0.02} )^2 \\n = 2238.69\\n= 2239

5 0
2 years ago
Complete the square to solve the equation below.
Vinil7 [7]

9514 1404 393

Answer:

  B.  x = -6, x = 4

Step-by-step explanation:

The constant on the left wants to be 1, the square of half the x-coefficient. We can get it to be that value by adding 8 to the equation.

  x² +2x +1 = 25

  (x +1)² = 25 . . . . . . . rewrite the left side as a square

  x +1 = ±√25 = ±5 . . . . take the square root

  x = -1 ±5 . . . . . . . . . subtract 1

  x = -6 or x = 4

3 0
3 years ago
What is 3 to the square root of 1089
Nana76 [90]
3 to square root of 1089 is

5.5590606e+15
8 0
1 year ago
Can someone please explain to me how to do numbers 2 and 3??
LenaWriter [7]
The answer to question 3 is 1 person orders chicken and the other 5 had steak dinner.

the way you work this out is you half 6 which is three and then do 3x14 and 3x17
3x14=42
3x17=51
42+51=93
this is too less so you have to do less of the cheaper meal (14) and more of the dearer one (17) so I went to 1x14 and 5x17
1x14=14
5x17=85
14+85=99
add these together and it makes 99

the answer to question 14 is 5 adults and 3 students

to do this you do exactly the same as how you do question 3
6 0
3 years ago
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