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
maksim [4K]
3 years ago
5

Can you please help me​

Mathematics
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

i think it's 10

Step-by-step explanation:

i only had this lesson once ever soooo...

i tried tho

You might be interested in
Which figure has both lines of symmetry and symmetry and rotation symmetry?​
Sedaia [141]

Answer:

Pentagon

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The perimeter of a triangle is 50 mm. The lengths of 2 of the sides are 13.5 mm and 14.5 mm. Find the missing length.
Naddik [55]
The missing side length should be 22. Add 13.5 to 14.5 and you should get 28. Subtract 28 from the total perimeter (50) to get 22.
5 0
2 years ago
Can someone please teach me how to do this? You can please do like 2 questions and please explain exactly how you got the answer
spayn [35]

All of these questions require one thing: trigonometric functions.

There are 3 main trigonometric functions, which can only be used on right triangles: sine, cosine, and tangent.

Sine = opposite / hypotenuse

Cosine = adjacent / hypotenuse

Tangent = opposite / adjacent

When trying to figure out what function to use, we always start by looking from the angle. Take problem a, for example. Looking from angle E, of which the value is not given, we have the side opposite and the side adjacent. Therefore, we should use the tangent function.

---The hypotenuse is always the longest side of the triangle. It is never considered the opposite or adjacent side.

Let's set up our function with the given information from problem a.

tan(x) = 9.7 / 5.2

---The tangent of an unknown angle is equal to the quotient of the opposite side and the adjacent side.

Now, solving for the value of x will require a calculator. We'll need to use what's called an inverse trigonometric function. Most calculators have these directly above the regular trigonometric functions, and the inverse functions are accessed using a "second" key.

---Ensure that your calculator is in degrees, not radians!

x = tan^-1(9.7 / 5.2)

x = 61.805 = 62 degrees

Next, let's take a look at problem b. This time, we're solving for a side length instead of an angle. But, we're still going to start by looking from our angle.


Looking from the 38 degree angle, we are given the adjacent side and an unknown hypotenuse. Therefore, we should use the cosine function.

cosine(38) = 53.1 / r

---The cosine of a 38 degree angle is equal to the quotient of 53.1 and an unknown hypotenuse, r.

Use your algebra skills to isolate the variable r.

r * cosine(38) = 53.1

r = 53.1 / cosine(38)

---From here, all you need to do is plug this into your calculator. Since we are solving for a side length (and given an angle), we are just using the regular trigonometric function buttons on the calculator.

r = 67.385 = 67.4 units

Hope this helps!

4 0
2 years ago
What is the equation of a circle with center (-4,7) and a radius 6
s2008m [1.1K]

Answer:

( x +4)^2 + ( y-7)^2 = 36

Step-by-step explanation:

We can write the equation of a circle as

( x-h)^2 + ( y-k)^2 = r^2

where ( h,k) is the center and r is the radius

( x- -4)^2 + ( y-7)^2 = 6^2

( x +4)^2 + ( y-7)^2 = 36

7 0
3 years ago
Read 2 more answers
2. Which of the following is an equation? <br> A. y/9 - 3<br> B. 9 - 2<br> C. y/9 = 3<br> D. 7 + y
andrew11 [14]
An equation is something with a = sign btw and it’s C because it’s the only one with the = sign
7 0
3 years ago
Other questions:
  • I WILL GIVE BRAINLIEST 
    12·2 answers
  • Help please I need help
    15·1 answer
  • 1 1/9 • 6= x what is x
    14·2 answers
  • You have saved 4/5 of
    14·1 answer
  • Which of the following equations represents a hyperbola with a vertical transverse axis and foci at (0, −10) and (0, 10)?
    6·2 answers
  • The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
    14·1 answer
  • Please help me In this
    15·1 answer
  • Which statement is true regarding the functions on the graph?
    12·2 answers
  • How do i find the answer of this math question or problem f(x) = 4x − 9?
    9·1 answer
  • Last week, Jason ran 26. 1 miles. He wants to run further this week. He plans to run 2. 4 miles to the park, four times around t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!