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
malfutka [58]
3 years ago
8

PLEASE HELP! THANKS! The measures, in degrees, of the 3 angles of a triangle are given by 2x +1, 3x - 3, and 9x. What is the mea

sure of the smallest angle? A.) 13 degrees B.) 23 degrees C.) 29 degrees D.) 40 degrees please show how to solve this I GIVE THANKS!!!
Mathematics
1 answer:
drek231 [11]3 years ago
7 0
So all of the internal angles of a triangle will add up to 180 degrees.  So if we add all of the expressions given and set them equal to 180, we can solve for x, then solve for each angle...

(2x + 1) + (3x - 3) + 9x = 180
2x + 3x + 9x + 1 - 3 = 180
14x - 2 = 180
14x = 182
x = 13

Now we can substitute 13 into each expression to find the value of each angle...

2x + 1 =
2(13) + 1 =
26 + 1 = 27 degrees

3x - 3 =
3(13) - 3 =
39 - 3 = 36 degrees

9x =
9(13) = 117 degrees

So the 3 angles are 27 degrees, 36 degrees, and 117 degrees.

The smallest is 27 degrees

** Note-- I don't see 27 degrees in the answer choices you gave, so I double checked my math (I didn't find any mistakes).  Please check to see that the question is written correctly (pay close attention to plus and minus signs).
You might be interested in
The figure shown consists of a rectangle and quarter circle ?
azamat

Answer:

Can I have the numbers???

Step-by-step explanation:

7 0
3 years ago
The simplest form of the expression -2x2(x – 5) + x(2x2 – 10x) + x is
Bad White [126]
For this case you must simplify the expression respecting the rules of multiplication of mathematics.
 The steps to simplify the expression are the following:
 First multiply what is in the parentheses
  -2x ^ 2 (x - 5) + x (2x ^ 2 - 10x) + x
  -2x ^ 3 + 10x ^ 2 + 2x ^ 3 - 10x ^ 2 + x
 Then add the terms that have the same exponent
 (-2x ^ 3 + 2x ^ 3) + (10x ^ 2 - 10x ^ 2) + x
  x
 The final simplification is
 x
 answer
 x
4 0
3 years ago
Read 2 more answers
PLEASE HELPPPPP!!!! DUE VERY SOON!!!!
REY [17]

Answer:

8

5

-1

-4

Step-by-step explanation:

7 0
3 years ago
The equation of a circle is . Find the center and the radius of the circle. Then graph the circle.
Korvikt [17]

Answer:

B happy to help!

JESUS LOVES YOU

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which is a quadratic function having a leading coefficient of 3 and a constant term of –12? f(x) = –12x2 3x 1 f(x) = 3x2 11x – 1
eimsori [14]

The correct option is b.

<h2>Quadratic Equation</h2>

A quadratic equation is an equation that can be written in the form of

ax²+bx+c.

Where a is the leading coefficient, and

c is the constant.

<h2>Leading coefficient </h2>

The leading coefficient of an equation is a coefficient of the term having the highest power in the equation.

Given options:

a.)  f(x) = -12x^2+3x+1 \\

b.)  f(x) = 3x^2+11x-12 \\

c.)  f(x) = 12x^2+3x+3\\

d.)  f(x) = 3x -12.

<h3 /><h3>Solution</h3>

As it is given that the leading coefficient of the equation is 3. therefore, the value of the 'a' in the general quadratic equation is 3,

3x²+bx+c,

Also, the value of the constant is -12, therefore, the value of c is -12,

3x²+bx-12

From all the given options the only feasible option is b only.

Hence, the correct option is b.

Learn more about Quadratic Equation:

brainly.com/question/2263981

8 0
2 years ago
Other questions:
  • How many rectangle faces dose a pentagonal pyramid have
    10·2 answers
  • a hexagonal pyramid is cut by a plane as shown in the diagram. What is the shape of the resulting Cross section?
    9·2 answers
  • Solve for x <br>2x/3 + 2 = 16
    10·1 answer
  • Changing tree over 25 as a decimal
    15·2 answers
  • Answer: y = 50 + 25x; $200
    6·1 answer
  • A theater wants to take in at least $2000 for the matinee. Children's tickets cost $5
    10·1 answer
  • What is the base?<br> Area= 9/10<br> Height=3/5<br><br> PLEASE HELP ME!!
    6·1 answer
  • 1.- Maria compro $750 en mercancia, por pajar en efectivo le hacen un descuento del 15%, ¿cuánto pago Maria con el descuento?
    14·1 answer
  • What's a 3 number multiplication that = 1000?
    11·2 answers
  • Can someone tell me what 5/9 + 4/6 = in fractions
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!