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
abruzzese [7]
3 years ago
11

SOMEONE PLEASE HELP ITS DUE TONIGHT EXPLANATION = BRAINLIEST

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0

Given:

Radius of the circle = 4 meters

Measure of arc = 135 degrees

To find:

The area of the sector bounded by the given arc.

Solution:

Formula for area of a sector is:

A=\pi r^2\times \dfrac{\theta}{360^\circ}

Where, r is the radius and \theta is the central angle or measure of intercepted arc.

Putting r=4,\ \theta =135^\circ in the above formula, we get

A=\pi \times (4)^2\times \dfrac{135^\circ}{360^\circ}

A=\pi \times 16\times \dfrac{3}{8}

A=\pi \times 2\times 3

A=6\pi

Therefore, the exact area of the given sector is 6\pi square meters.

You might be interested in
Please help on this, this is on delta math btw but pleaseeee help
blagie [28]

Answer:

c = 2

Step-by-step explanation:

 6 = 6c-6

+6       +6

12 = 6c

12 / 6 = 2

3 0
2 years ago
A spider must eat 3 flies a day to survive. After he has taken his three he quits for the day. For any fly that crosses his path
attashe74 [19]
The answer is 0.75.
(1/2)*1 + (1/2)*0.5 = 0.75
7 0
3 years ago
If element X has 78protons, how many electrons does it have
Maslowich
It would have 78 as well
6 0
3 years ago
Read 2 more answers
A study showed that 69% of supermarket shoppers believe supermarket brands to be as good as national name brands. To investigate
Valentin [98]

Answer:

We conclude that supermarket ketchup was not as good as the national brand ketchup.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 100

p = 69% = 0.69

Alpha, α = 0.05

Number of stating that the supermarket brand was as good as the national brand , x = 56

a) First, we design the null and the alternate hypothesis

H_{0}: p = 0.69\\H_A: p \neq 0.69

This is a two-tailed test.  

b) Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{56}{100} = 0.56

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.56-0.69}{\sqrt{\frac{0.69(1-0.69)}{100}}} = -2.810

Now, we calculate the p-value from the table.

P-value =  0.0049

c) Since the p-value is lower than the significance level, we fail to accept the null and reject it.

Thus, we conclude that supermarket ketchup was not as good as the national brand ketchup.

d) It need to be tested further whether the supermarket brand was worse than the national brand or better than the national brand.

6 0
3 years ago
Which expression represents the composition [g o f](x) for the functions below? f(x) = 3x – 2 g(x) = 1 + 2x 6x – 1 6x + 3 6x + 1
azamat

Answer:

It’s D

Step-by-step explanation:

I did it on EDG

3 0
2 years ago
Read 2 more answers
Other questions:
  • When rewriting y = 2x + 1 in function notation, what do you replace with f(x)?
    5·2 answers
  • Which function has an inverse that is a function?
    11·1 answer
  • Write the equation of the circle with center (7,-2) and radius square root 61. Please show your work!
    10·1 answer
  • Yo please help
    10·2 answers
  • This is for algebra 1
    13·1 answer
  • Write 2x+y=5 in slope intercept form
    15·2 answers
  • What should she do next to find 42 to the nearest hundredth?
    10·1 answer
  • Please help me add this fractions(show work) ​
    15·1 answer
  • Layla has 25 toys in her toy box, and she adds 4 new toys every month. Based on this information, which equation best shows the
    10·1 answer
  • Find the distance between the points (-1,-2) and (5,2). Simplified radical form.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!