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
Marina CMI [18]
3 years ago
15

Solve for X X=..........................

Mathematics
2 answers:
SOVA2 [1]3 years ago
8 0

Answer:

(3x -5)°+ (2x- 15)°=180°[sum of co- Interrior angles of a triangle is 180°]

or, 3x- 5 + 2x - 15=180°

or,5x - 20 = 180°

or, 5x = 180°+20

or, x = 200÷ 5

•°•x = 40°

Stolb23 [73]3 years ago
4 0

Answer:

X = 40

Step-by-step explanation:

3x + 2x -5 -15 = 180

5x + -20 = 180

then u add 20 on both sides

5x + 0 = 200

ya the 0 is not necessary but I was showing u add 20 on both sides lol

then u divide 5 on both sides to get the x by itself

x = 40

Hope this helps dude ^-^

You might be interested in
GUYS I NEED HELP ITS URGENT! WILL MARK BRAINLIEST!
Ad libitum [116K]

Answer:

k = 13 The smallest zero or root is x = -10

===============================

Work Shown:

note: you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

Hope this was Right

7 0
3 years ago
What is the first derivative of this function?
Dvinal [7]

\bf \cfrac{-9x^2}{8x^5+3}\implies \stackrel{\textit{using the quotient rule}}{\cfrac{(-18x)(8x^5+3)~~-~~(-9x^2)(40x^4)}{(8x^5+3)^2}} \\\\\\ \cfrac{(-144x^6-54x)~~-~~(-360x^6)}{(8x^5+3)^2}\implies \cfrac{-144x^6-54x~~+~~360x^6}{(8x^5+3)^2} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \cfrac{216x^6-54x}{64x^{10}+48x^5+9}~\hfill

7 0
2 years ago
What is the exact value for Tan(120) degrees?
Free_Kalibri [48]
On a unit circle, 120 is in the second quadrant. the terminal line form a 60 degree angle with the negative part of the x axis, the x value is -1/2, and the y value is √3/2
tan120=(√3/2)/(-1/2)=-√3
3 0
3 years ago
Factorsie x squared + 5x-14
Helga [31]

Answer:

(x+7)(x-2)

Step-by-step explanation:

=x^2+5x-14

=x^2+(7-2)x-14

=x^2+7x-2x-14

=x(x+7)-2(x+7)

=(x+7)(x-2)

7 0
3 years ago
Read 2 more answers
Shelly and her family are riding the Pikes Peak Cog Railway. The table shows the approximate distances the train has covered at
Radda [10]

Answer:

The equation that can be used to find the distance (d), the train will travel in any number of minutes (m) is d=0.12m

Step-by-step explanation:

we know that

distance  = \frac{speed}{time}

From the table below

CASE 1:

When time is 5 minutes and  distance is 0.6 miles

Speed = \frac{Distance}{time}

Speed =\frac{0.6}{5}

speed  = 0.12

CASE 2:

When time is 8 minutes and  distance is 0.96 miles

Speed = \frac{Distance}{time}

Speed =\frac{0.96}{8}

speed  = 0.12

CASE 3:

When time is 11 minutes and  distance is 1.32 miles

Speed = \frac{Distance}{time}

Speed = \frac{1.32}{11}

speed  = 0.12

CASE 4:

When time is 14 minutes and  distance is 1.68 miles

Speed = \frac{Distance}{time}

Speed = \frac{1.68}{14}

speed  = 0.12

CASE 5:

When time is 17 minutes and  distance is 2.04 miles

Speed = \frac{Distance}{time}

Speed =\frac{2.04}{17}

speed  = 0.12

CASE 6:

When time is 20 minutes and  distance is 2.4 miles

Speed = \frac{Distance}{time}

Speed =\frac{2.4}{20}

speed  = 0.12

In all the cases we get the speed as 0.12

Hence the  equation can be

d = 0.12 m

where d is the distance(in miles) and m is the time(in minutes)

6 0
3 years ago
Other questions:
  • What is the binomial expansion of (m + 2)4?
    6·1 answer
  • 53.34 in simplest form
    13·2 answers
  • 35 rounded to the nearest hundred
    7·2 answers
  • -2x + 3x - 5 = 6 - 21<br><br> FIND x
    8·1 answer
  • What is the following product? Assume b&gt;0
    13·1 answer
  • The following exchange rate is given £1 = 1.15 euros. Convert €7 into euros<br>euros​
    12·2 answers
  • Which equation is represented by the line
    5·2 answers
  • Area of parts of circles
    6·1 answer
  • Solve -3 &lt; 2x + 3 &lt; 5.
    7·2 answers
  • What should a bank statement include
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!