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
ArbitrLikvidat [17]
3 years ago
12

What is the value of the expression?

Mathematics
1 answer:
user100 [1]3 years ago
4 0
3a= 3(5) = 15
15 - - 3 = 15+3 = 18
18/6 = 3
b + a = 5 + -3 = -3 + 5 = 2
3 x 2 = 6
You might be interested in
Find the x- and y- intercepts of the graph of each equation. 2x+3y=6
Eva8 [605]
X = 3 that is you x intercept 
y = 2 that is your y intercept 
8 0
3 years ago
Factorise the following 4(x-1)²-9 need solution
kumpel [21]

Answer:x= 5/2 x= -1/2


Step-by-step explanation:

4(x-1)2-9

4(x2-2x+1) - 9

4x2 - 8x + 4 - 9

4x2 - 8x - 5

4x2 +2x - 10x - 5

2x(2x+1) - 5(2x+1)

(2x-5)(2x+1)

therefore, x= 5/2 x= -1/2




mark brainliest plzz

6 0
3 years ago
Max can type 160 words in 5 minutes. How long would it take him to type 400 words? * A. 12.50 minB. 13 minC. 10.50 minD. 12 min
blagie [28]
To find how long it would take him, one has to divide 400 by 160 and then multiply 5 by what that number is. You multiply 5 by the quotient because that is the number that would make it proportional. 400/160 x 5 is 12.5, meaning that the answer is 12.5 minutes, or A. 
5 0
3 years ago
In a class if 20 students, 60% are girls. How many Students are girls?
seropon [69]
12 students are girls and 8 are boys.
6 0
3 years ago
How Do I do proofs for proving triangles?
MA_775_DIABLO [31]
You must have been taught postulates and theorems that allow you to prove triangles congruent, such as SSS, SAS, ASA, etc. Look at the given information of a proof, and see how from the given information, using definitions, postulates, and theorems you have already learned, you can show pairs of corresponding sides and angles to be congruent that will fit into the above methods. Then use one of the methods to prove the triangles congruent.
4 0
3 years ago
Other questions:
  • Help me with 12, 13, and 14 please ! thanks
    15·1 answer
  • I have 7 millions, 18 ten thousands, 2 hundreds, 10 tens, 1 one, 4 tenths, 15 hundredths what number am I
    7·1 answer
  • A coin and a pentagonal spinner with edges marked A, B, C, D and E are tossed and twirled simultaneously. Find the probability o
    11·1 answer
  • Help me please!!!!! Thank you
    11·2 answers
  • The diameter of the attic is 18ft and its height is 18ft. What's is the volume of the space in the attic
    10·1 answer
  • Don’t answer this. This is to help my friend level up thanks
    8·2 answers
  • Solve the equation for x: <br> x^2-ax-bx+ab=0
    15·2 answers
  • What's the sum off 663 and 23
    9·1 answer
  • The lengths of two sides of a triangle are shown. Side 1: 3x2 − 4x − 1 Side 2: 4x − x2 5 The perimeter of the triangle is 5x3 −
    7·1 answer
  • -The concrete sections of a highway are designed to be 25 m long. Sections are prepared at 10°C. What is the minimum space that
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!