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
AnnyKZ [126]
3 years ago
8

I NEED HELP ON DOING THIS

Mathematics
2 answers:
-BARSIC- [3]3 years ago
5 0
1. Write out an equation to solve this.
2x + 7x - 9 = 90 degrees

2. Add 2x to 7x
9x - 9 = 90 degrees

3. Add 9 to both sides of the equal sign
9x = 99 degrees

4. Divide 9x by 9 to get x
x = 11 degrees
stira [4]3 years ago
4 0
If all the angles add up to 90 degrees then you can set the equation 7x-9*2x=90
Simplify
9x-9=90
Plus 9 both sides
9x=99
Divide by 9 on both sides
X=11
You might be interested in
I need help once again.
muminat
The dimensions of the prism can be 2x, 2x+3 and x+6.

We first factor out the GCF of the trinomial.  The GCF of the coefficients is 2.  Each term has an x in common as well, so the GCF is 2x.

Factoring out the 2x, we have
2x(2x²+15x+18).

To factor the remaining trinomial, we find factors of 2*18=36 that sum to 15.  12*3 = 36 and 12+3 = 15.  We split up 15x into 12x and 3x:

2x(2x²+12x+3x+18)

Now we group together the first two terms in parentheses and the last two:
2x((2x²+12x)+(3x+18))

Factor out the GCF of the first group:
2x(2x(x+6)+(3x+18))

Factor out the GCF of the second group:
2x(2x(x+6)+3(x+6))

Factoring out what these have in common,
2x(x+6)(2x+3)
8 0
3 years ago
Which of the set of ordered pairs contains the line<br> 1/3 x+y= 15.
Dima020 [189]

Answer: c

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which of the following ratios will form a proportion with 2/3
Olenka [21]
6/15 and 12/18 are ratios of 2/3
6 0
3 years ago
Read 2 more answers
For some reason my teacher gave this to us and I kinda forgot how to do this from last year... please helppp w/ work or she’s go
WARRIOR [948]
The greatest common factor is...
5a
I got this by...
10: 1,2,5,10
15: 1,3,5,15
25: 1,5,25
The GCF is 5 for the numbers.
For the a's, it's...
a: a
a^3: a×a×a
a^6: a×a×a×a×a×a
The GFC is a.
Then multiple 5 and a, and you get...
5a
The GFC is...
5a
Hope this helps!
8 0
3 years ago
I'LL GIVE BRAINLIEST<br><br> A or D
BabaBlast [244]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Veronica owns stocks worth 11,200. She owes 4,500 on her student loans and 800 on her credit cards. She owes 6,000 on her car th
    9·1 answer
  • Anyone know the answer?
    10·1 answer
  • How many students in ms. Leal class are more than 42 inches tall?
    6·1 answer
  • 24=12x+6y solve for y
    14·2 answers
  • Abc is a right angled triangle. if b= 90°, ac = 96cm c= 30°
    8·1 answer
  • The distance around the middle of a sphere (the circumference) equals 37.699 in. what is the surface area of the sphere?
    5·1 answer
  • 1. A community swimming pool is 7 yards 4.79 feet wide. How wide is the pool in meters and centimeters?
    8·1 answer
  • 200 soldiers stand in a straight row.
    5·1 answer
  • Determine the x and y -intercepts: 5y -3x = 15
    11·2 answers
  • Helppppppppp due today in 10 mins construct a square by following these steps
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!