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
Gemiola [76]
3 years ago
15

What is the exact value of tan(67.5°) ?

Mathematics
2 answers:
mariarad [96]3 years ago
7 0

Answer:

\sqrt\frac{2+\sqrt{2}}{2-\sqrt{2}}

Step-by-step explanation:

correct on edge2020

docker41 [41]3 years ago
4 0

Answer:

The exact value using trigonometric identities.

Exact Form:

√ 3 + 2 √ 2

Decimal Form:

2.41421356 …

Hope this helps :)

You might be interested in
What value of y will make this expression equal to 2.45?
MA_775_DIABLO [31]

Any value of y, except when y = -4.9, will make the expression equal to 2.45.

5 0
3 years ago
Read 2 more answers
Answer this pls asap
irina [24]

Answer:

351.68 cm^2

Step-by-step explanation:

We need to find the area of the frame itself. the radius of the inner circle is 12, but the frame has a radius of 4. You add 12 and 4 and you get 16. The formula for area of a circle is A=πr^2. So A= 3.14 x16^2. Then you have A= 3.14x 256 and you get 803.84. But we only want the area of the frame, so you have to get the area of the inner circle and subtract. You get A= 3.14 x 12^2. 3.14x144 is 452.16. 803.84-452.16 is 351.68. Hope this helped. :)

3 0
3 years ago
Read 2 more answers
Find the volume of a cube with side length of 7 in.
anastassius [24]

Answer: 343 in³

Explanation: In this problem, we're asked to find the volume of a cube.

It's important to understand that a cube is a type of rectangular prism and the formula for the volume of a rectangular prism is shown below.

<em>Volume = length × width × height</em>

In a cube however, the length, width, and height are all the same. So we can use the formula side × side × side instead.

So the formula for the volume of a cube is side × side × side or s³.

So to find the volume of the given cube, since each side has a length of 7 inches, we can plug this information into the formula to get (7 in.)³ or (7 in.)(7 in.)(7 in).

7 x 7 is 49 and 49 x 7 is 343.

So we have 343 in³.

So the volume of the given cube is 343 in³.

8 0
3 years ago
Triangles J K L and M N R are shown.
Free_Kalibri [48]

The correct answer is option B which is we need ∠L ≅  ∠R to prove congruency.

<h3>What is congruency?</h3>

The Side-Angle-Side Congruence Theorem (SAS) defines two triangles to be congruent to each other if the included angle and two sides of one is congruent to the included angle and corresponding two sides of the other triangle.

According to the SAS theorem which means Side Angle Side, The angle which is included between the two sides must be congruent.

Here we are given that

KL = NR

JL = MR

Now in the figure, we can clearly see that the angle included between JL & KL is L & the angle included between NR & MR is R.

So for the triangles to be congruent by SAS, angle L must be congruent to angle R.

∠L=∠R

Therefore the correct answer is option B which is we need ∠L ≅ ∠R to prove congruency.

Learn more about congruency at

brainly.com/question/14418374

#SPJ1

4 0
2 years ago
Which is the area of a circle with a radius of 5 units? (use 3.14 for )?
Sauron [17]
The area of a circle is A=πr². 
Since π is about 3.14 we can substitute that into the equation.
So A=3.14×r²
We can substitute the given radius for r.
A= 3.14 × 5²
When a number is squared, or has the two over it, we multiply it by itself. 
5 × 5= 25
A= 3.14 × 25
Simplify this and the area of the circle is about 78.5
A≈78.5
6 0
3 years ago
Read 2 more answers
Other questions:
  • If a+3b=13 and a+b=5 the value of b is
    11·1 answer
  • A survey found that 12 out of 30 people preferred bacon over sausage. According to this survey, what percent of people pefer bac
    6·1 answer
  • Sanjay needs 90 meters of fence to go around a rectangular garden.
    13·2 answers
  • Triangles ABC and DEF are similar
    13·1 answer
  • Number 121 whole thing please
    12·1 answer
  • Solve for x. Round to the nearest tenth of a degreee, if necessary
    11·1 answer
  • Josiah has a loyalty card good for a discount at his local grocery store. The item he
    14·2 answers
  • Which of the following is equal to 2?
    13·2 answers
  • Write the first five terms of the arithmetic sequence. First term: -8 and common difference: -2
    13·1 answer
  • URGENT: Find the value of X
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!