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
lana66690 [7]
3 years ago
8

Find the value of x A.21 B.30 C.9 D.6

Mathematics
1 answer:
oee [108]3 years ago
8 0

Answer:

x = 6

Step-by-step explanation:

The two angles are vertical angles and vertical angles are equal

5x = 3x+12

Subtract 3x from each side

5x -3x = 3x+12-3x

2x= 12

Divide by 2

2x/2 = 12/2

x = 6

You might be interested in
Difference between mafic intermediate and felsic magmas
Inga [223]

Both are indicators of the chemical composition of silicate minerals, magmas and rocks.

Mafic is used for silicate minerals, magmas and rocks that are composed of heavier elements, like magnesium, iron, calcium and sodium. They are dark and have high specific gravities.

<span>Opposite to the this, felsic silicate minerals, magmas and rocks in their composition have less from these heavy elements. They are composed from silicon, oxygen, aluminium and potassium, are light in color and have lower specific gravities.</span>

8 0
3 years ago
PLEASE HELP ASAP!!! (ii only)
mixer [17]
The equation of the tangent line can be found using slope formula and fact that slope = dy/dx.

\frac{dy}{dx} = \frac{y - y_0}{x - x_0}

where (x0,y0) is point A ---> (0,-1)

Then rearrange equation into slope-intercept form:
y = \frac{dy}{dx}(x - 0) -1

Finally sub in x=0 into dy/dx to get slope at the point (0,-1)

y = 3x -1
6 0
3 years ago
Does anyone know what the formula for the area of a circle is?
Sloan [31]

Answer:

search up-area of circle formula and circumference of a circle formula

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please help quickly, if someone answers quickly I'll give them Brainly.
denis-greek [22]
1. A

I hope this helped! This is because the division of numbers and factors are equal to this.
6 0
3 years ago
Read 2 more answers
Find a cubic function f(x) = ax3 + bx2 + cx + d that has a local maximum value of 4 at x = −3 and a local minimum value of 0 at
Vinvika [58]
The formula is f(x) = a x ^ 3 + b x ^ 2 + c x  + d 
f '(x) = 3ax^2 + 2bx + c. 
f(- 3) = 3 ==> - 27a + 9b - 3c + d = 3 
f '(- 3) = 0 (being a most extreme) ==> 27a - 6b + c = 0. 
f(1) = 0 ==> a + b + c + d = 0 
f '(1) = 0 (being a base) ==> 3a + 2b + c = 0. 
- 
Along these lines, we have the four conditions 
- 27a + 9b - 3c + d = 3 
a + b + c + d = 0 
27a - 6b + c = 0 
3a + 2b + c = 0 
Subtracting the last two conditions yields 24a - 8b = 0 ==> b = 3a. 
Along these lines, the last condition yields 3a + 6a + c = 0 ==> c = - 9a. 
Consequently, we have from the initial two conditions: 
- 27a + 9(3a) - 3(- 9a) + d = 3 ==> 27a + d = 3 
a + 3a - 9a + d = 0 ==> d = 5a. 
Along these lines, a = 3/32 and d = 15/32. 
==> b = 9/32 and c = - 27/32. 
That is, f(x) = (1/32)(3x^3 + 9x^2 - 27x + 15).
8 0
3 years ago
Other questions:
  • Define a variable and write each phrase as an algebraic expression
    15·1 answer
  • Why is it important to include a scale when displaying a box plot?
    5·1 answer
  • Lines AB, CD, and EF intersect at point G. How many PAIRS of vertical angles are there in this diagram
    6·1 answer
  • How many solutions are there to the equation below?<br> 16(x + 2) - 8 = 16x+ 24
    12·2 answers
  • At a college, 72% of courses have final exams and 46% of courses require research papers. Suppose that 32% of courses have a res
    9·1 answer
  • How do you solve this
    7·1 answer
  • How do you multiply 2 square roots? <br><br> Ex. <img src="https://tex.z-dn.net/?f=%5Csqrt%7B2x%2B3%7D%20%20%5Csqrt%7Bx-2%7D" id
    13·1 answer
  • The expression -50x + 100 represents the balance, in dollars, of a bank account after x months.
    6·1 answer
  • A skydiver in a computer game free-falls from a height of 3000 meters at a
    10·1 answer
  • Please help now<br> Pic below
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!