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
alukav5142 [94]
3 years ago
15

If a=3, b=-5 fond the value of (2a+3b) (4a sq- 6ab+9b square)​

Mathematics
1 answer:
snow_lady [41]3 years ago
4 0

Step-by-step explanation:

(2a+3b)(4a²-6ab+9b²

(2a+3b){(2a)²-2a×3b+(3b)²}

Because (a³+b³)=(a+b)(a²-ab+b²)

Therefore,

(2a+3b){(2a)²-2a×3b+(3b)²}

=(2a)³+(3b)³

By substituting the values , we get

  • (2a)³+(3b)³
  • (2×3)³+(3×(-5))³
  • 6³+(-15)³
  • 216+(-3375)
  • 216-3375
  • -3159
You might be interested in
Will give brainliest if you help me
natali 33 [55]

Answer:

1120 in³

Step-by-step explanation:

The volume (V) of a cuboid is calculated as

V = area of base × height , then

V = 80 × 14 = 1120 in³

8 0
3 years ago
If B is the midpoint of line AC, AC = CD, AB = 3x+4, AC=11x-17, and CE = 49, find DE. (Show work)
larisa [96]

Answer:

2(3x+4) = 11x-17

6x+8 = 11x-17

25=-5x

x=-5

11x-17

55-17

38

AC = 38

CD = 38

49-38 = 11

DE = 11

Let me know if this helps!

3 0
2 years ago
Can you help givie full info thanks
liubo4ka [24]

Answer:

13

Step-by-step explanation:

Using long division, you can multiply each given value by 100 to eliminate the decimals:

2.08x100=208

0.16x100=16

OR (calculator method)

2.08÷0.16=13

You must divide the amount of food per cat by the total amount of food available to determine how many cats can be fed.  This division can be done using a calculator.

OR

5 0
2 years ago
Read 2 more answers
1
lisabon 2012 [21]

Answer:

nose mate

Step-by-step explanation:

8 0
3 years ago
Unit 6. 5) Please help. Which equation shows the correct use of the addition rule to determine the probability that a randomly s
ololo11 [35]

Answer:

D.) 0.7+0.4−0.2=0.9

4 0
3 years ago
Other questions:
  • Luna has 54 apples she gave 45 apples how many apples she has in all
    10·1 answer
  • 3×6×8.........................
    9·2 answers
  • 80 into a ratio of 3:2
    8·2 answers
  • How many tenths are in 14.5
    6·1 answer
  • Kelly made a blueberry pie. After measuring the pie tin, Kelly calculated it has an area of 78.5 square inches. What is the pie
    9·1 answer
  • Consider this expression.
    10·1 answer
  • Identify the sampling technique used. Every 17th person in line to buy tickets to a concert is asked his or her age.
    6·1 answer
  • !! please help me i’ll mark brainliest !!
    10·1 answer
  • 37/100<br> How do you write as a percentage?
    10·2 answers
  • Angle K has a measure of 83 degrees and is reflected across the line y=2 to get angle K’.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!