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
jolli1 [7]
2 years ago
7

What is the value of x? Enter your answer in the box.

Mathematics
1 answer:
inna [77]2 years ago
7 0

The 3 inside angles of a triangle need to equal 180 degrees.

Since you are given 2 angles, subtract both of those from 180 to find X.

X = 180 - 70 - 30 = 80 degrees.

X = 80

You might be interested in
Solve the proportion
Vinvika [58]

Answer:

1.  (3/2)

2. (20)

3. (3)

4. (-9/5)

5. (-8/7)

6. (-2/3), (4)

Step-by-step explanation:

1.                          2.                        3.                          4.

x         3                   12         3               x           1                x + 3        3

/    =    /                     /     =    /                /    =      /                   /     =     /

4         8                   x           5              9           x                   2           5

8x = 12                    60 = 3x                  x² = 9                      5x + 15 = 6

÷8    ÷8                   ÷3    ÷3                   x = √9                          -15     -15

                                                                                                5x = -9

x = (3/2)                   x = 20                  x = 3                           ÷5    ÷5

                                                                                                  x = (-9/5)

5.                             6.

4 - x          3                   1               x - 3

  /       =     /                   /        =        /

 12            7              2x + 1               9

28 - 7x = 36                   9 = 2x^2 - 5x - 3

-28         -28                 + 3                    + 3

                                     12 = 2x^2 - 5x

-7x = 8                          -12                   -12

÷-7   ÷-7

                                       2x^2 - 5x - 12 = 0

x = (-8/7)                      

                                       -b +-√b^2 - 4ac

                                                     /                = -(-5)√-5^2 - 4 (2)(-12)

                                                    2a                                /

                                                                                      2(2)

                                             

                                          = 5-+√121        5 - 11        -6

                                                 /         =        /       =    /       = (-2/3)

                                                -4                 4             4

                                                            =     5 + 11          16

                                                                       /      =       /    = (4)

                                                                      4              4

I hope this helps!

3 0
2 years ago
What is the period of y=3cot(4x−3π)
Stells [14]
Hello!

hint: we can rewrite your function as below:

<span>3/<span>tan<span>(<span>4x−3π</span>) = </span></span></span>3(1+tan4xtan3π)/tan4x−tan3π = 

=<span>3/<span>tan<span>(<span>4x</span>) = </span></span></span>3cot<span>(<span>4x</span><span>)

</span></span>now, since the period P of cotangent function is pi, then the period of cot(4x), which is the period of our original function, is such that:

<span>"4P=π"


Hope this Helps! Have A Wonderful Day! :)</span>
4 0
3 years ago
What is the simplified form?
MAVERICK [17]

Answer:

A fraction is in simplest form when the top and bottom cannot be any smaller, while still being whole numbers.

Step-by-step explanation:

6 0
3 years ago
Express 15.16 as a mixed number
kap26 [50]
If this is not a typo, and you mean 15.16 as in 15 and 16 hundredths, we can express this into a mixed number.
Mixed numbers are a whole number with the remainder of that number as a fraction.
For example, 1.25 as a decimal = 1 1/4 as a mixed number.
Since we already have our whole number, 15, we need to know what 16 hundredths is simplified as a fraction.
Currently, our mixed number is 15 16/100.
To simplify this, we need to find a common factor that 16 and 100 share.
Since they are both even numbers, let's divide by 2.
16/2 = 8
100/2 = 50.
Our new mixed number is 15 8/50.
Currently our fraction is still even, so divide by 2 again.
8/2 = 4
50/2 = 25
Your new mixed number is 15 4/25.
4 and 25 have no common factors, so the fraction is simplified.
Your answer is:
15.16 is 15 4/25 as a mixed number.
I hope this helps!
4 0
3 years ago
Read 2 more answers
In which graph do all of thw indicated points have x-coordinates that satisfy x &lt;-3
Helga [31]
You would have to choose a graph with all x coordinates equaling less than negative 3

your answer would have to be to have all x coordinates to the left of -3 on the x axis

your answer is A :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Ms. Calculation, the math teacher, has an 80 cm long rain stick that makes a sound like running water when she turns it upside d
    14·1 answer
  • tadarius mother is concerned about the amount of water she uses to wash clothes. she washes 7 loads of clothes each week for her
    10·1 answer
  • Simplify 3 11/5 divided by 3 -9/5
    5·1 answer
  • Help asap !! will get branliest.​
    12·2 answers
  • IF YOU DON'T KNOW MATH AND YOU WANT TO LEARN CLICK THIS!!!
    8·1 answer
  • In a certain county, the number of Charter Schools is eight less than twice the number of Alternative Schools. We know that ther
    14·1 answer
  • Is there anyone who can do my homework for me Its 30 questions
    8·1 answer
  • How to find the area of a triangle with given coordiantes? #5-50
    7·1 answer
  • What is 3/4 Divided 1/2
    12·1 answer
  • One angle of a triangle measures 10 degrees more than the second. The measure of the third angle is twice the sum of the measure
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!