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
Ierofanga [76]
3 years ago
6

Please help me solve this please

Mathematics
1 answer:
Tems11 [23]3 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to the exterior angle that's supplementary to the third interior angle:

7x + 6 + 22 = 9x + 12 add like terms

7x + 28 = 9x + 12 export like terms to the same side of the equation

28 - 12 = 9x - 7x

16 = 2x divide both sides by 2

8 = x

You might be interested in
3.3 - 3.7n - 2n + 8 nnnnnnnnnnnnnnnnnn
arsen [322]

Answer:

-5.7n + 11.3

Step-by-step explanation:

3.3 - 3.7n - 2n + 8 = -3.7n - 2n + 3.3 + 8 = -5.7n + 11.3

3 0
2 years ago
Read 2 more answers
I need help with this I don’t understand what it’s asking.
DanielleElmas [232]

Answer:

20

Step-by-step explanation:

Because it is a square table, that means all the sides are even. And to find the area, we do Height * Base. But again, because they're even, we would just need to find 2 numbers that multiply to be 400. And that number, is 20. 20 * 20 = 400. So the length of one side is 20.

5 0
3 years ago
A survey was conducted that asked 1004 people how many books they had read in the past year. Results indicated that x overbarequ
melisa1 [442]

Answer:

Step-by-step explanation:

Given that a survey was conducted that asked 1004 people how many books they had read in the past year.

Results are:

x bar =12.5

s = 16.6

n = 1004

Std error of sample = \frac{s}{\sqrt{n-1} } =\frac{16.6}{\sqrt{1003} }\\=0.524152\\=0.524

Since population std dev is not known t critical value can be used for confidence interval.

df = 1004-1 =1003

t critical = 1.96

Margin of error = 1.96(std error) =1.027

Confidence interval lower bound = 12.5-1.027 = 11.473

Upper bound = 12.5+1.027 = 13.527

6 0
3 years ago
What ratio is equivalent to 21/35
eimsori [14]
A 2:5 ratio. Because 21 divided by 7 equals 3 and 35 divided by 7 equals 5. And I did it by 7 because thats common factor
4 0
2 years ago
PLEASE HELP THIS IS URGENT!!!<br> what is 2+2
lisov135 [29]

Answer:

4

Step-by-step explanation:

Hope this helps!! Have a good day!

4 0
2 years ago
Other questions:
  • Which function represents the trend line?
    7·1 answer
  • an airplane can ascend a rate of 53 1/2 meters in 2/3 of a second. how many meters can the airplane ascend in one second
    7·1 answer
  • Please help and write the steps to fine the answer (ignore the erasings)
    10·2 answers
  • Total cost to stay one night at sleepyhead Motel is $119 without breakfast and $142 with breakfast included what is the differen
    6·1 answer
  • on an average day 105 books are published in the United States about how many books would be published in the month of September
    8·1 answer
  • Cylinders A and B are similar solids. The base of cylinder A has a circumference of 4π units. The base of cylinder B has an area
    8·2 answers
  • Two is equal to 4 less than 3 times a certain number. Find the number.
    10·2 answers
  • I have no idea how to do this lol i need help!!
    14·1 answer
  • Help please asap just the answers​
    6·2 answers
  • On a unit circle, what is cos Θ for coordinates <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D%20%2C
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!