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
AnnZ [28]
3 years ago
8

Find the radius of the circle given the area of the sector is 153.9 and the angle measure

Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0

Answer:

14

Step-by-step explanation:

area of sector = 153.9

or, (1/2) r²∅ = 153.9

or, r²∅ = 153.9 ×2

or, r²∅ = 307.8

or, r²× π/2 = 307.8

or, r² = 615.6/π

or, r² = 196

or, r=√196

r = 14

You might be interested in
How many more students like baseball ⚾️ than tennis ??
fenix001 [56]

Answer:

2

Step-by-step explanation:

24 people do not like tennis, 22 people do like tennis according to the chart. (This is for people who like baseball as well)

So, 24 - 22 = 2. 2 more people like baseball than tennis.

3 0
3 years ago
HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai
Tanzania [10]

Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that n = 560, \pi = \frac{26}{560} = 0.046

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.33.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 + 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.067

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

5 0
4 years ago
So i need to do 3/2 times 5
rusak2 [61]

Answer:

7 1/2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST FOR BEST ANSWER
MatroZZZ [7]

Answer:

5−x²+2xy−y²

Step-by-step explanation:

5 - (x-y)²

Rewrite  

(x−y)² as (x−y)(x−y) so

5−((x−y)(x−y))

Expand (x−y)(x−y) using the FOIL Method

Apply the distributive property.

5−(x(x−y)−y(x−y))

Apply the distributive property

5−(x⋅x+x(−y)−y(x−y))

Apply the distributive property

5−(x⋅x+x(−y)−yx−y(−y))

Simplify and combine like terms  

Simplify each term

5−(x²−xy−yx+y²)

Subtract yx from −xy  

5−(x²−2xy+y²)

Apply the distributive property

5−x²−(−2xy)−y²

Multiply  −2 by −1

5−x²+2xy−y²

6 0
3 years ago
Please help!!! Please help!!! Please help!!!
Elis [28]

Answer:

See explanation.

Step-by-step explanation:

Tyler wrote everything correct, except he multiplied some incorrectly. 2x times 5 is 10x, not 7x. And 3 times 5 is 15, not 8. The bottom left and right boxes are incorrect.

6 0
3 years ago
Read 2 more answers
Other questions:
  • 4/9 converted into a decimal rounded to the nearest thousand
    8·1 answer
  • james recently installed a new pool in his backyard the pool is 20 ft long 15 feet wide and 5 ft deep, what is the volume
    6·1 answer
  • 144 divided by 8 distributive property
    10·1 answer
  • Find the common ratio, r, in the following geometric sequence. 27, 9, 3, 1,…
    7·2 answers
  • The increasing number pattern shown was made using a rule.
    11·2 answers
  • Determine the largest integer value of a which f(x)= ax^2 + 9x + 5 has two distinct, real zeros (show work please)
    8·1 answer
  • In Exercises 37– 40, BD ⃗ bisects ∠ABC. Find m∠ABD,<br><br>m∠CBD, and m∠ABC.
    14·1 answer
  • Which function has a vertex on the y-axis?
    8·1 answer
  • On a coordinate plane, a curved line labeled f of x with a minimum value of (1.9, negative 5.7) and a maximum value of (0, 2), c
    15·1 answer
  • Multiplying Polynomials Distributive property<br> 4a^2(a^5-2a^4+a)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!