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
FromTheMoon [43]
3 years ago
8

A bull’s-eye with a 4-inch diameter covers 20 percent of a circular target. What is the area, in square inches, of the target?

Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0

Answer:

Area of target = 62.8 inch²

Step-by-step explanation:

A bull’s-eye with a 4-inch diameter covers 20 percent of a circular target.

Diameter of bull's eye = 4 inch

\texttt{Area of bull's eye = }\frac{\pi\times 4^2}{4}=12.56inch^2

Given that  bull’s-eye covers 20% of circular target.

\texttt{Area of bull's eye = }\frac{20}{100}\times \texttt{Area of target}\\\\\texttt{Area of target}\times 0.2=12.56\\\\\texttt{Area of target}=\frac{12.56}{0.2}=62.8inch^2

Area of target = 62.8 inch²

kipiarov [429]3 years ago
3 0

Area of a circle is found using the formula: Area = π * r^2

Using 3.14 for π

Area of the bull'e eye = π * 2^2 = 4π = 4 * 3.14 = 12.56 square inches.

This is 20% of the entire target.

To find the area of the entire target, divide the area of the bull's eye by the percentage:

Area = 12.56 / 0.20 = 62.8 square inches.

Round the answer as needed.

You might be interested in
write an equation of the line slope intercept form that is parallel to Y= 1/2 X +3 and through the point (2, -1)
Tems11 [23]

Answer:

y=1/2x

Step-by-step explanation:

I first did point-slope form which is

y+1=1/2(x-2)

Then, I converted it into slope-intercept form which is

y=1/2x

4 0
2 years ago
The seagull population on a small island in the Atlantic Ocean can be calculated using the formula
Marta_Voda [28]

The correct relation for the sea gull population is: P(t) = 5.3t^(11/7)

Answer:

d. about 66.5 hundred thousand

Step-by-step explanation:

Given that :

P(t) = 5.3t^(11/7)

Population, P is in hujdred thousand ; t = number of years

Population after 5 years ;

t = 5

P(5) = 5.3 * 5^(11/7)

P(5) = 5.3 * 5^1.5714285

P(5) = 5.3 * 12.542422

P(5) = 66.474840

P(5) = 66.5 (approximately)

Hence, population after 5 years will be about 66.5 hundred thousand.

6 0
3 years ago
I worked for 12 hours each day for 6 days then the next day I worked 9 hours how many did I work in all
nikitadnepr [17]

Answer:

81

Step-by-step explanation:

12(6) + 9

72 + 9

81......

4 0
3 years ago
Read 2 more answers
Juantia will make cookies and the recipce calls for 2/3 cup of flour. She wants to make this recipe four times a month How mcuh
vesna_86 [32]

Answer:

8/3 or 6 2/3 cup

Step-by-step explanation:

2/3 times 4/1 = 8/3 or 6 2/3

3 0
3 years ago
Dora drove 80 km in 40 minutes then 120 km in 1 hour and then the final 200km took him 1 hour 20 minutes. what is his average sp
bonufazy [111]

9514 1404 393

Answer:

  133 1/3 km/hour

Step-by-step explanation:

Average speed is computed as ...

  average speed = (total distance)/(total time)

  = (80 km +120 km +200 km)/(2/3 + 1 + 1 1/3 hour) = 400 km/(3 hour)

  = 133 1/3 km/hour

8 0
2 years ago
Other questions:
  • A hyena can run 1/4 of a mile in 22.5 seconds. At this rate, which equation can be used to determine how fast a hyena runs in mi
    5·1 answer
  • 40% of college students scored more than 70% on a math test 120 students scored below that how many total students took the math
    15·1 answer
  • I need work shown. I can't figure these out
    7·1 answer
  • Polynomials <br>PLZ QUICK 1: Subtract and Simplify <br><br>(–y^2 – 4y – 8) – (–4y^2 – 6y + 3)
    8·1 answer
  • Joi bought 25 pieces of clothing at the year-end sale from her favorite store. She spent a total of $188. She bought some shirts
    14·1 answer
  • Find two rational number between 1/6 and 2/3<br>plz give me the ans​
    6·2 answers
  • Does anyone know hw to find the zeros of this function <br> h(x)=x2 - 4x + 1
    13·1 answer
  • Find the value of each variable.<br> 10<br> 45°
    5·1 answer
  • Below are the supply and demand equations for blenders in a certain market. In these equations, p represents price, D represents
    15·1 answer
  • Find the margin of error if p = 71% and n = 100. round to four decimal places.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!