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
Klio2033 [76]
2 years ago
12

13x-11 +18x15+ 4x+1=180°

Mathematics
1 answer:
BARSIC [14]2 years ago
6 0

Answer:

x = - 80/17, or x = - 4 \frac{12}{17}

Step-by-step explanation:

13x-11 +18×15+ 4x+1=180°

<=> (13x + 4x) + (18×15+ 1 - 11)=180°

<=> 17x + 260 =180

<=> 17x = 180 - 260

<=> 17x = - 80

<=> x = - 80/17

<=> x = - 4 \frac{12}{17}

You might be interested in
Which of the following statements are true? Select all that apply. This is Algebra Nation
natita [175]

Answer:

241

Step-by-step explanation:

3 0
3 years ago
What is the value of y in the equation 2 + y = −3?
SOVA2 [1]

I believe that y is equal to -5.

y=-5

7 0
2 years ago
Find the directional derivative of f at the given point in the direction indicated by the angle θ.
anygoal [31]

Answer:

Directional derivative = 1/√2

Step-by-step explanation:

We are given f(x, y) = y cos(xy)

Now, we know that;

∇f(x, y) = ycos xy

Thus, applying that to the question, we have;

∇f(x, y) = [-y² sin xy, cos (xy) - xy sin xy]

At coordinates (0,1),we now have;

∇f(0, 1) = [-1²•sin0, (cos 0) - 0]

∇f(0, 1) = [0, 1]

Now, unit vector indicated by the angle θ is given as; u = [cos θ, sin θ]

From the question, since θ = π/4, thus

u = [cos π/4, sin π/4]

Cos π/4 in surd form is; 1/√2

Also, sin π/4 in surd form is; 1/√2

So, u = [1/√2, 1/√2]

Directional derivative = [∇f(0, 1)] • u

= [0, 1] × [1/√2, 1/√2] = 0 + 1/√2 = 1/√2

4 0
2 years ago
What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?
Sati [7]

<em>So</em><em>,</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>of</em><em> </em><em>option</em><em> </em><em>A</em><em>.</em>

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>⤴</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

8 0
3 years ago
Read 2 more answers
How many solutions exist for the given equation? 12x+1=3(4x+1)-2
enyata [817]
I got All Real Numbers (infinite answers); what's your answer choices?
6 0
2 years ago
Read 2 more answers
Other questions:
  • A cylinder has a radius of 3 cm and a height of 24 cm. What is the total surface area for both circles of the cylinder? Use 3.14
    9·1 answer
  • How do you do this question
    5·2 answers
  • How many even integers greater than two and less then 20 are equal in value to the sum of 2 prime numbers?
    10·1 answer
  • Convert 2671(in base 9), to base 3 without first converting to base 10.​
    8·1 answer
  • PLEASE I NEED HELP AND EXPLAIN PLZ ​
    11·1 answer
  • How much would $500 invested at 5% interest compounded continuously be
    9·1 answer
  • Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.
    7·2 answers
  • A sandbox measured 12.25 ft by 15.125 ft. What is the perimeter of the sandbox
    15·1 answer
  • Cooper buys a one-gallon bottle of juice for $12.80. What is the unit rate of the cost of the juice per fluid ounce? 1 gallon 4
    12·1 answer
  • Don’t need to explain, but if you want to then go ahead!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!