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
olasank [31]
3 years ago
9

I need it fast please

Mathematics
2 answers:
Westkost [7]3 years ago
8 0

Answer:

B. 3m-18n

Step-by-step explanation:

5m+3n-5m+3(m-7n)

=5m+3n-5m+3m-21n

=3m-18n

Arturiano [62]3 years ago
7 0
It’s B.
I have to use 20 characters so....




You might be interested in
What is the area of the shape?
marshall27 [118]

Step-by-step explanation:

hello,

the shape is a right trapezium.

you use the following formula:

area of a trapezium = ½ × sum of parallel sides× height.

or simply,

a = ½ ( a + b ) h

where a and b are the parallel sides

and h is the height.

thus,

a = ½ × ( 4 + 6 )× 4

a = ½ ( 10 ) × 4

a = 5 × 4

a = 20

have a great day! au revoir !

6 0
2 years ago
Read 2 more answers
Which Fraction is equal to -2/3<br> A. 2/-3<br> B. -3/2<br> C. -2/-3<br> D. 2/3
Hatshy [7]

Answer:

the answer is A 2/-3 bc negative is gonna turn into the positive number

5 0
3 years ago
Let a=3/5 and let b=2/3. Compute a^2b^-3.
Amanda [17]

Answer: 81/100



Step-by-step explanation:

I don't guarantee you I am right but..

first, solve for the exponents after substituting the numbers in

3/5 x 3/5 is 9/25

since b's exponent is negative, you change the fraction into its reciprocal and then do it with the exponent but positive

2/3^-3 to 3/2^3 and 3/2 x 3/2 is 9/4

then you mutiply both numbers to get 9/4 x 9/25 is 81/100

7 0
2 years ago
The equation below shows the total volume (V),in cubic units, of 2 identical boxes with each side equal to s units:
mrs_skeptik [129]
A. 21.0 cubic units
2 × 3.5 × 3
8 0
2 years ago
6.025 (25 is repeating) as a mixed number
Mashutka [201]

Answer:

6.025 as a mixed number is 6 1/40

3 0
2 years ago
Read 2 more answers
Other questions:
  • Write an expression using letters and/or numbers for each problem below
    8·1 answer
  • You roll two fair dice, a green one and a red one. (a) What is the probability of getting a sum of 7? (Enter your answer as a fr
    13·1 answer
  • If p is true and q is false, the p ---&gt; q is (always, never, sometimes) true.
    10·2 answers
  • A recipe for fruit punch calls for cranberry juice and sparkling water. The ratio of cups of cranberry juice to cups of sparklin
    7·1 answer
  • Which description is correct for the polynomial 5x³?
    9·2 answers
  • The vertex of this parabola is at (2, -4). When the y-value is -3, the x-value is -3. What is the coefficient of the squared ter
    9·1 answer
  • PLEASE HELP ME.!!!!! <br> I’m begging you
    14·1 answer
  • Helpppp pleaseee ! i don’t understand
    13·1 answer
  • My bro needs help again whyy
    13·2 answers
  • The height of a poplar tree in feet at age t years can be modeled by the function h(t)=6+3ln(t+1) . use the model to predict the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!