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
ioda
2 years ago
5

Evaluate each expression for a=7,b=4,and c=-3.

Mathematics
1 answer:
stiks02 [169]2 years ago
3 0

Answer:

Step-by-step explanation: 3a-5b= 3(7)-5(4)

                                                       =21-20

                                                       =<u>1</u>

7-3a+5a+15=7-3(7)+5(7)+15

                   =7-21+35+15

                   =-14+50

                   =<u>36</u>

15a^2-17(bc)^2=15(7)^2-17(4)(-3)^2

                         =105^2-204^2

                         =210-408

                         =<u>-198</u>

You might be interested in
Whatsthe defenition of hypotenuse
marta [7]
Hypotenuse is the longest side of a right triangle. It is equal to the sum of the squares on the other two sides.
8 0
3 years ago
Georgia want to end letter to 12 of her friend. Half of the letter will need 1 page each and the other half will need 2 page eac
kifflom [539]

The total no: of pages needed are 18 pages

<h3>What is the unitary method?</h3>

A fundamental idea behind the unitary method is using the value of one unit to determine the values of additional units. Study up on the unitary method. With an increase in units, the value of additional units rises.

<h3>What is unitary set?</h3>

The general unitary group, also known as the group of unitary similitudes, is simply the product of the unitary group and the group of all positive multiples of the identity matrix. It includes all matrices A such that AA is a nonzero multiple of the identity matrix.

According to the question:-

The no: of pages needed for 6 letters = 6

The no: of pages needed for the other 6 letters= 6*2

                                                                              =12

Total no: of pages are 18

Hence, the total no: of pages are 18

To know more about unitary method click the following link:-

brainly.com/question/24587372

#SPJ4

3 0
1 year ago
Plz help I am confused
Nataly_w [17]
Answer:

-18/7 or -2 4/7

Explanation:

-3 2/7 - ( -5/7 )

-23/7 + 5/7

-18/7 Improper fraction

-2 4/7 Mixed Number
4 0
3 years ago
Simplify the following completely:<br><br> Show all steps<br><br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7B200%7D%20-%20%5Csq
Anton [14]

Answer:

4√2

Step-by-step explanation:

please leave brainliest

5 0
2 years ago
Read 2 more answers
Which expressions are equivalent to 5x - 15? Select three options.
Zigmanuir [339]

Answer:

-5(x-3)

-5(3-x)

-3(-5+2x)+x

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What's twenty and fifteen thousandths in standard form HELP PLSSSSS
    5·1 answer
  • 2 out of 10 people have an allergic reaction to a new medicine. What is the probability that exactly 4 out of 10 people given th
    14·1 answer
  • If a soccer team played 160 games and won 65% of them, how many games did they win?
    10·1 answer
  • You have a rope they is 129.25 inches long.You cut off 6 pieces from the rope.Each piece is 18.5 inches long .How long is the ro
    11·1 answer
  • Can someone help me plzzz and thank you
    7·1 answer
  • Find the slope of the function in the table
    13·1 answer
  • There is another answer: 210
    6·1 answer
  • Please press this link it is a free college tutoring website its useful just trying to look out for yall if you guys need help w
    7·1 answer
  • What makes one graph represent quantities that are proportional to each other and one graph not represent
    5·1 answer
  • What are the three types of triangles, based on ANGLES?<br> Draw an example for each one.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!