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
Alex_Xolod [135]
2 years ago
8

Item 2

Mathematics
1 answer:
PtichkaEL [24]2 years ago
6 0

Answer:

vertical, and x is 81

Step-by-step explanation:

The angles are across first each other, which means they are the same angle. From there, set x+3 equal to 84 (x+4=84). From there solve to get x

You might be interested in
Find the area of each regular polygon. Round your answer to the nearest tenth if necessary.
tatuchka [14]

*I am assuming that the hexagons in all questions are regular and the triangle in (24) is equilateral*

(21)

Area of a Regular Hexagon: \frac{3\sqrt{3}}{2}(side)^{2} = \frac{3\sqrt{3}}{2}*(\frac{20\sqrt{3} }{3} )^{2} =200\sqrt{3} square units

(22)

Similar to (21)

Area = 216\sqrt{3} square units

(23)

For this case, we will have to consider the relation between the side and inradius of the hexagon. Since, a hexagon is basically a combination of six equilateral triangles, the inradius of the hexagon is basically the altitude of one of the six equilateral triangles. The relation between altitude of an equilateral triangle and its side is given by:

altitude=\frac{\sqrt{3}}{2}*side

side = \frac{36}{\sqrt{3}}

Hence, area of the hexagon will be: 648\sqrt{3} square units

(24)

Given is the inradius of an equilateral triangle.

Inradius = \frac{\sqrt{3}}{6}*side

Substituting the value of inradius and calculating the length of the side of the equilateral triangle:

Side = 16 units

Area of equilateral triangle = \frac{\sqrt{3}}{4}*(side)^{2} = \frac{\sqrt{3}}{4}*256 = 64\sqrt{3} square units

4 0
3 years ago
STEP 2 HELP ME ASAP !!!!
Whitepunk [10]

Answer:

y=7x

Step-by-step explanation:

x=time

8 0
3 years ago
Do the following angles form a triangle
Lemur [1.5K]

Answer:

We need a picture or link

Step-by-step explanation:

3 0
2 years ago
Solve for n.<br> 2n - 3<br> 5<br> =<br> = 5<br> Enter your answer in the box.<br> n =
Zina [86]

Answer:

2n - 35 = 5 \\ 2n = 5 + 35 \\ 2n = 40 \\ n = 40 \div 2 \\ n = 20

4 0
2 years ago
Read 2 more answers
What is the answer to this problem?
Sedaia [141]

Answer:

x = 4.

Step-by-step explanation:

These are exterior  alternate angles which are congruent.

So 21x + 6 = 90

21x = 84

x = 4.

8 0
2 years ago
Other questions:
  • in a given year, the rate of flu infection for the general public was 8.3%. And sample of 200 people who receive the flu vaccine
    6·1 answer
  • Write y= 3/4x + 1/2 in standard form. Thanks in advance.
    10·1 answer
  • What is 3540 divided by 6?
    14·1 answer
  • A sum of money is shared between Ali and
    5·1 answer
  • Suppose a &gt; 0 is constant and consider the parameteric surface sigma given by r(phi, theta) = a sin(phi) cos(theta)i + a sin(
    5·1 answer
  • the length and width of a rectangle are 4 feet and 3 feet, respectively. a similar rectangle has a width of 9 feet. what is the
    14·1 answer
  • kelly made one batchof peanut and pretzal snack mix. how many grams does she need to add to the snack mix to make 2 kilograms
    5·1 answer
  • A scientist estimated that a mixture would need 6 milliliters of a chemical to balance. The actual amount needed was 7 millilite
    14·1 answer
  • Please answer the question now in two minutes
    11·1 answer
  • I read newspaper I can get recent news<br><br>because ,although ,so that<br><br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!