1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
4 years ago
6

Please answer this correctly

Mathematics
2 answers:
yKpoI14uk [10]4 years ago
8 0

Answer:

3769.57

Step-by-step explanation:

the perimeter of semicircle is

P = d + πd/2

251.86 = d + (3.14d/2)

multiply both side with 2

503.72 = 2d + 3.14d

503.72 = 5.14 d

d = 98 miles

d is diameter, then the radius is 98 : 2 = 49

Area of semicircle

A = ½ π r²

A = 0.5 x 3.14 x 49²

A = 3769.57 miles²

sineoko [7]4 years ago
4 0

Answer: 3769.57 miles²

<u>Step-by-step explanation:</u>

The perimeter of the semi circle is the sum of the curve and the diameter.

Perimeter of curve

\dfrac{1}{2}C=\dfrac{1}{2}2\pi r\\\\\\.\quad =\pi r\\

Diameter of the semi circle = 2r

P = \pi r+2r\\\\\\251.86=r(\pi +2)\\\\\\\dfrac{251.86}{\pi +2}=r\\\\\\\dfrac{251.86}{5.14}=r\\\\\\49=r

Area of the curve

\dfrac{1}{2}A=\dfrac{1}{2}\pi r^2\\\\\\.\quad =\dfrac{1}{2}(3.14)(49)^2\\\\\\.\quad =\large\boxed{3769.57}

You might be interested in
Suppose a manufacturer finds that 95% of their production is normal but the final 5% has one or more flaws. Each flawed good has
RUDIKE [14]

Answer:

1)    

FLAW                         TYPE2         NO TYPE2 FLAW

TYPE1                         0.015           0.025

NO TYPE1 FLAW        0.01             0.95

2) 0.04 and $0.04

3) 0.025 and $0.025

4) 0.015 and $0.015

5) 0.95 and $0.95

Step-by-step explanation:

Given that;

financial cost = $1

p(flaw) = 0.05  

p(type 1 flaw / flaw) = 80% = 0.8

p(type 2 flaw / flaw) = 50% = 0.5

p( type 1 and 2 flaw/flaw) = 30% = 0.30

1) Bivariate Table

p( type 1 flaw) = p(flaw) × p(type 1 flaw/flaw) = 0.05 × 0.8 = 0.04

p( type 2 flaw) = p(flaw) × p(type 2 flaw/flaw)  = 0.05 × 0.5 = 0.025

p( type 1 and 2 flaw) =  p(flow) × p( type 1 & 2 flaw/flaw) = 0.05 × 0.3 = 0.015

p( only 1 flow) = 0.04 - 0.015 = 0.025

p( only 2 flow) =  0.025 - 0.015 = 0.01

THEREFORE  the Bivariate Table;

FLAW                         TYPE2         NO TYPE2 FLAW

TYPE1                         0.015           0.025

NO TYPE1 FLAW       0.01              0.95

2) probability and expectations of type 1 flaw?

p( type 1 flaw) = p(flaw) × p(type 1 flaw/flaw) = 0.05 × 0.8 = 0.04

Expected financial cost to the firm per good = $1 × 0.04 = $0.04

3)  probability and expectation of Type 2 flaw

p( type 2 flaw) = p(flaw) × p(type 2 flaw/flaw)  = 0.05 × 0.5 = 0.025

Expected financial cost to the firm per good = $1 × 0.025 = $0.025

4) probability and expectations of Type 1 and 2 flaws

p( type 1 and 2 flaw) =  p(flow) × p( type 1 & 2 flaw/flaw) = 0.05 × 0.3 = 0.015

Expected financial cost to the firm per good = $1 * 0.015 = $0.015

5) probability and expectations of no flaws?

Probability of no flaw = P(No flaw) =95% =  0.95

Expected financial cost saved the firm per good due to no flaw

= $1 × 0.95 = $0.95

5 0
4 years ago
The age of a father is 3 times the age of his son. 5 years ago, the father was 4
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

x = father's age

y = son's age

Nowadays:

3x = y

5 years ago:

4(x - 5) = y - 5

4x - 20 = y - 5

4x = y + 15

I hope I've helped you.

3 0
4 years ago
What is the solution to 4 to the 3rd power =y
JulsSmile [24]
I think the answer is 64
7 0
3 years ago
Please help!! Math II
Vaselesa [24]
I say that x equals 5
7 0
3 years ago
Mrs. Toomer brought 40 cookies to school. Mrs. Toomer's class ate 1/2 the cookies. Mrs. Wilson's class ate 1/4 of the remaining
Arte-miy333 [17]
1/2 of 40 is 20, and the question says 1/4 of the REMAINING cookies, and 1/4 of 20 is 5. There are 3/4 left, or 15 cookies. I hope this helps!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Iliana’s gross pay is $2,130 per month. Her deductions total $270. She budgets for $1,000 in fixed expenses and $400 in variable
    8·2 answers
  • What is the range of f(x)?
    5·1 answer
  • Make a the subject of V^2+U^2+2as
    9·1 answer
  • Which statement about the diagram are true? Check all that apply.<br>​
    14·2 answers
  • I need 1-3 help me!!
    10·1 answer
  • Please answer this, i will give brainliest. lol
    14·1 answer
  • There are 7.55 grams of sugar in 5 servings of strawberries. How many grams of sugar are in a single serving of strawberries?
    15·2 answers
  • A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet ab
    10·1 answer
  • Help pleaseee ! whoever’s answers first ill mark as brainylest
    9·2 answers
  • a football team won 80% of the 150 games in a season. Wright the percent proportion that will help you solve the problem in that
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!