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
Fed [463]
2 years ago
13

What is the value of x?

Mathematics
1 answer:
Serggg [28]2 years ago
8 0

Answer:

Step-by-step explanation:

the angles of a triangle add up to180.

70 plus 30 plus x = 180

100 plus x =180

x=80

You might be interested in
Solve x2 – 8x + 15 < 0.
rusak2 [61]
X2 - 8x + 15 = 0
(x  - 3)(x - 5) = 0
critical points are at 3 and 5
8 0
3 years ago
Read 2 more answers
What is the opposite of –|–1|
Marianna [84]
What is the opposite of -|-1| so what is the opposite of -1? It's 1!!! Hope this helped!
6 0
3 years ago
Read 2 more answers
Solve:<br><br> 18/x = 2 + 36/x{2}
ollegr [7]

Answer:

x-3=-3

Step-by-step explanation:

6 0
2 years ago
What is 10.4 as a mixed number in simplest form?
ikadub [295]
10 2/5
ten and two fifth
7 0
2 years ago
Read 2 more answers
A trebuchet launches a projectile from a hilltop 30 feet above ground level on a parabolic arc at a velocity of 40 feet per seco
Gennadij [26K]

Answer:

3.1 seconds

Step-by-step explanation:

The time it will hit the ground is when the <em>height is equal to 0</em>. So we plug in 0 in h and solve the quadratic equation for t.

-16t^2+40t+30=0

We will use the quadratic formula [t=\frac{-b+-\sqrt{b^2-4ac} }{2a} ] to solve this.

a is -16

b is 40 , and

c is 30.

plugging these into the formula we get:

t=\frac{-b+-\sqrt{b^2-4ac} }{2a}\\t=\frac{-40+-\sqrt{(40)^2-4(-16)(30)} }{2(-16)}\\t=\frac{-40+-\sqrt{3520} }{-32}\\t=-0.6,3.1

Since time cannot be negative, we take t = 3.1 as the value

So it will take 3.1 seconds to hit the ground (target)

7 0
3 years ago
Other questions:
  • A group of men and women were asked what their favorite pet was, and the results of the survey were tabulated. Let event B be de
    12·2 answers
  • How many tons are in 1,400 pounds?
    9·2 answers
  • Given fx() = 6(1 - x), what is the value of f(-8) ?
    11·1 answer
  • Roberto wrote a sentence that describes an equation.
    5·2 answers
  • What is the domain and range of y+3=2^x
    10·1 answer
  • Helpppppp pleaseeeeeeee
    7·2 answers
  • PLS HELPPPPP&lt;3tyyyyyy this is due today! so please helppp tysmmm and have a great night or morning! :) (spam)
    11·2 answers
  • Mrs. Dern's class is preparing to write reports on the United States. Students must draw from a box the state that they will be
    10·1 answer
  • 7.5% of 140 is what number?
    14·2 answers
  • Which ordered pair is a solution of the equation?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!