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
Elena-2011 [213]
3 years ago
6

the circumfrince of a circle is approximately 100.48 centimeters.the shaded region 3/10 of the whole circle.enter the area of th

e shaded region in square centimeters.round your answer to the nearest hundreth
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0
Fggdffgdgfdsfsdsfdsdfsdf
You might be interested in
In triangle ABC, and C is a right angle. Find the value of the trig function find the sec(A) if C=25, B=20, A=15
asambeis [7]

Answer:

sec A = 5/4

Step-by-step explanation:

Sec of an angle is hypotenuse/adjacent side

In your problem, sec A = 25/20 = 5/4

It helps if you can draw a figure of the problem.  Make sure you memorize the definition of each trig function

5 0
3 years ago
− 0.25(−8+12) PLS HELP I HAVE A TESTTTT
Semmy [17]

Answer: -1

Step-by-step explanation:

− 0.25(−8+12) = -0.25 x 4 =-1

3 0
3 years ago
1. S(–4, –4), P(4, –2), A(6, 6) and Z(–2, 4) a) Apply the distance formula for each side to determine whether SPAZ is equilatera
Aleksandr [31]

Answer:

a) SPAZ is equilateral.

b) Diagonals SA and PZ are perpendicular to each other.

c) Diagonals SA and PZ bisect each other.

Step-by-step explanation:

At first we form the triangle with the help of a graphing tool and whose result is attached below. It seems to be a paralellogram.

a) If figure is equilateral, then SP = PA = AZ = ZS:

SP = \sqrt{[4-(-4)]^{2}+[(-2)-(-4)]^{2}}

SP \approx 8.246

PA = \sqrt{(6-4)^{2}+[6-(-2)]^{2}}

PA \approx  8.246

AZ =\sqrt{(-2-6)^{2}+(4-6)^{2}}

AZ \approx 8.246

ZS = \sqrt{[-4-(-2)]^{2}+(-4-4)^{2}}

ZS \approx 8.246

Therefore, SPAZ is equilateral.

b) We use the slope formula to determine the inclination of diagonals SA and PZ:

m_{SA} = \frac{6-(-4)}{6-(-4)}

m_{SA} = 1

m_{PZ} = \frac{4-(-2)}{-2-4}

m_{PZ} = -1

Since m_{SA}\cdot m_{PZ} = -1, diagonals SA and PZ are perpendicular to each other.

c) The diagonals bisect each other if and only if both have the same midpoint. Now we proceed to determine the midpoints of each diagonal:

M_{SA} = \frac{1}{2}\cdot S(x,y) + \frac{1}{2}\cdot A(x,y)

M_{SA} = \frac{1}{2}\cdot (-4,-4)+\frac{1}{2}\cdot (6,6)

M_{SA} = (-2,-2)+(3,3)

M_{SA} = (1,1)

M_{PZ} = \frac{1}{2}\cdot P(x,y) + \frac{1}{2}\cdot Z(x,y)

M_{PZ} = \frac{1}{2}\cdot (4,-2)+\frac{1}{2}\cdot (-2,4)

M_{PZ} = (2,-1)+(-1,2)

M_{PZ} = (1,1)

Then, the diagonals SA and PZ bisect each other.

8 0
2 years ago
A 12-volume numbered set of books is placed randomly on a shelf. What is the probability that the books will be numbered in the
spayn [35]

Answer:

Step-by-step explanation:

There is a 1/12 probability that volume 1 will be correctly put in position 1.  

If we assume that volume 1 is right, then since there are then only 11 books left to choose from, there is then a 1/11 prob that volume 2 will be in position 2.  And so on. By the same reasoning there is 1/10 prob that volume 3 is then right, 1/9 prob for volume 4, 1/8 prob for volume 5, and 1/7 prob for volume 6,

and 1/6 prob for volume 7,and 1/5 prob for volume 8,and 1/4 prob for volume 9,and 1/3 prob for volume 10,and 1/2 prob for volume 11,and 1/1 prob for volume 12.  

So the probability is 1 /(12*11*10*9*8*7*6*5*4*3*2*1) = 1 / 479,001,600 ....

5 0
3 years ago
Which two operations are needed to write the expression that represents "five less than the quotient of a number anc
tatiyna
Division and subtraction
8 0
2 years ago
Read 2 more answers
Other questions:
  • 5 2/3 gave to her 4 friends how much did each one receive
    6·1 answer
  • Please need help on this
    11·2 answers
  • If Sarah is 24 years younger than her mother and if the sum of their ages is 68, how old is Sarah?
    15·1 answer
  • A committee at the College Board has been asked to study the SAT math scores for students in Pennsylvania and Ohio. A sample of
    7·1 answer
  • What is the difference between union set and universal set​
    14·1 answer
  • What is the solution to the following system?
    5·1 answer
  • Choose the numbers below that are perfect squares between 9 and 81.<br> 24<br> 36<br> 48<br> 64
    8·1 answer
  • Please help me!!!!!!!!!!
    12·1 answer
  • Write the inequality for the following: Five less than a<br> number is no less than 14.
    14·1 answer
  • Find the area of the semicircle. Round your answer to the nearest hundredth. YEAH IVE BEEN STUCK ON THIS help please I need the
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!