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
Alex787 [66]
2 years ago
5

Round your answer to the nearest hundredth.

Mathematics
1 answer:
iren2701 [21]2 years ago
8 0

Given b=4 and ∠β=20°,

a = 10.98991

c = 11.69522

∠α = 70° = 1.22173 rad = 7/18π

h = 3.75877

area = 21.97982

perimeter = 26.68513

inradius = 1.64735

circumradius = 5.84761

a

b

c

Calculation Steps

The following is one way to perform the calculation. It may not be the best way.

c =

b

sin(β)

= 11.69522

a = √c2 - b2

= √11.6952176006522 - 42

= √120.77811472661

= 10.98991

∠α = 90° - ∠β

= 70° = 1.22173 rad = 7/18π

area =

a × b

2

=

10.989909677818 × 4

2

= 21.97982

perimeter = a + b + c

= 10.989909677818 + 4 + 11.695217600652

= 26.68513

inradius =

a × b

a + b + c

=

43.959638711274

26.685127278471

= 1.64735

circumradius =

c

2

=

11.695217600652

2

= 5.84761

- ror

You might be interested in
The table below gives the dimensions of a bridge and a scale model of the bridgeFind the scale factor of the model to the real b
Oksana_A [137]
The corresponding sides of the model and the actual bridge are in proportion because the two solids are similar.

The scale factor from the model to the actual bridge is 5/25 = 6/30 = 8/40 = 1/5.

Answer:  1/5
3 0
3 years ago
I'm doing Pre-algebra and I don't know how would I figure out the 13th term of the pattern; 100, 91, 82, 73.... without writing
Over [174]
The way we would answer the question would be to express it as

100-9(n-1) with n being the nth term of the pattern.

Why is this? We know we subtract 9 each time and START from 100.
Remember though that 100 is the first term in the sequence. So, we would have (n-1)*9 to subtract 0 from our 1st term and 9 from our second term.

Also, we have 9*(n-1) because we are just subtracting multiples of 9. It is always going to subtract by 9.


If you needed the answer here it is...

The answer to the problem would be 
100-9(13-1)
= 100-9(12)
= 100-108
= -8

5 0
3 years ago
Solve x
d1i1m1o1n [39]

Step-by-step explanation:

x^{2} - 4x - 7 = 0

First, let's move the 7 to the right-hand side so we can determine what constant we'll need on the left-hand side to complete the square:

x^{2} - 4x = 7

From here, since the coefficient of the x term is -4, we know the square will be (x - 2) (since -2 it's half of -4).

To complete this square, we will need to add (-2)^{2} to both sides of the equation:

x^{2} - 4x + (-2)^2 = 7 + ^{-2}

x^{2} - 4x + 4 = 7 + 4

(x - 2)^{2} = 11

Now we can take the square root of both sides to figure out the solutions to x:

x - 2 = \pm \sqrt{11}

x = 2 \pm \sqrt{11}

7 0
3 years ago
3 squared 7=7 1/3 simplification
anzhelika [568]
Error! Because that does not make any sense
6 0
3 years ago
In DCAB, if ÐB = 38', What is ÐC?
frutty [35]
180-38= 142. So your answer would be 142 for dc.
7 0
3 years ago
Other questions:
  • There were 13,531 new products introduced last year. If 87% of the products introduced last year failed to reach their business
    15·1 answer
  • 1.) Six people share 3/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive? There aren't an
    15·1 answer
  • How many solutions does the equation 4y - 4y - 12 = 14 -2 have?
    7·1 answer
  • What happens to the value of the expression <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7Bx%7D%20%2B5" id="TexFormula1" tit
    13·1 answer
  • Logs are stacked in a pile. The bottom row has 50 logs and next to bottom row has 49 logs. Each row has one less log than the ro
    14·1 answer
  • Each day, a restaurant chain bakes 6,777 more key lime pies than coconut cream pies. If
    12·1 answer
  • This isnt a school related question,
    13·1 answer
  • The radius of a circle is 3.9 in. Find the circumference to the nearest tenth.​
    12·1 answer
  • Pleaseeeee help 50 points + brainliest mark
    7·2 answers
  • If Dominik completes a project by himself, it will take him 8 hours. Working with Katarina, it will take them 5 hours.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!