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
11Alexandr11 [23.1K]
4 years ago
13

Help. Only #21 thanks

Mathematics
1 answer:
Debora [2.8K]4 years ago
6 0
This the how you doit
You might be interested in
In parallelogram ABCD, what is DC?
zepelin [54]
This is a parallelogram which means the two opposites sides are equal. Then, we can solve the problem as shown below:
mAB = m DC
9x -14 = 3x + 4
Transpose and combine same term:
9x - 3x =4 +14
6x= 18
x=3

Solving for DC:
DC = 3X + 4 
DC = 3(3) + 4
DC = 13 units.

The answer is 13.

3 0
3 years ago
Read 2 more answers
Question: Solving Inequalities 4. Mrs. Motley has $1500 in her bank account. She spends $80 each week. Mrs. Motley wants to have
solniwko [45]
She can last 12 whole weeks and a few days. Hope this helps :)

4 0
4 years ago
Find the equation of the line that passes<br> through the point (2,1) and has a slope of 3
stiks02 [169]

Answer:

Step-by-step explanation: Answer is A

6 0
4 years ago
Assume that y varies inversely<br> with x. If y = -6 when x = -2, find<br> y when x = 5.
77julia77 [94]

Answer:

y = 2.4

Step-by-step explanation:

If y varies inversely as x, it means there's an inverse relationship between y and x, that is if x is increasing, y is decreasing and vice versa. In such instance, we have to find the constant of proportionality "k"

Hence,

y~1/x

y=k/x

When y =-6 and x =-2, we insert these values to find the value of the constant "k"

-6 = k/-2

k = 12.

Using this value of k to determine value of y when x =5 becomes:

y = 12/5

y = 2.4

7 0
4 years ago
what is the factorization of 81a6 - 100? (9a2 − 10)(9a3 10) (9a2 − 10)(9a3 − 10) (9a3 − 10)(9a3 10) (9a3 − 10)(9a3 − 10)
Leokris [45]
The given expression, 81a^6 - 100, is a difference of two squares. The first term 81a^6 is a square of 9a³. The second term, 100, is a square of 10. The factors of the given expression is therefore, (9a³ - 10) x (9a³ + 10).
7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help? I need this like... NOW.
    11·2 answers
  • PLEASE HELP ME I BEG I REALLY NEED SOME HEL PLEASE HEL IBEG YOU PLEASE :(
    15·1 answer
  • 20. What is the determinant of B? {-18 3} {4 1}
    15·1 answer
  • How do you find the zeros of a polynomial? Such as<br> (x+4)(x-2)(x-7)
    5·1 answer
  • Terrell wrote that 5-4.2=8. Which statement about this answer is true?
    11·1 answer
  • 2x + 8y = 6<br> -5x - 20y = -15
    11·1 answer
  • What is the domain of the function?
    11·1 answer
  • Please help!!! 10 points for it!!
    12·2 answers
  • suppose A and B are complementary angles, m a =(x-5) and m b= (2x+20). Solve for x and then find m a and m b
    9·1 answer
  • Plzz solve this question <br><br>​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!