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
maksim [4K]
3 years ago
6

Find −3a2 − b3 + 3c2 − 2b3 if a = 2, b = −1, and c = 3

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
7 0
-3(2)2-(-1)3+3(3)2-2(-1)3. FIRST SUBSTITUTE ALL GIVEN VALUES -12+3+18+6. SIMPLIFICATION 15. ANSWER (just remember -×- =+ )
julsineya [31]3 years ago
5 0
A = 2, b = -1, c = 3

-3a^2 - b^3 + 3c^2 - 2b^3
-3(2^2) - (-1^3) + 3(3^2) - 2(-1^3)
-3(4) - (-1) + 3(9) - 2(-1)
-12 + 1 + 27 + 2
-12 + 30
18 <===

You might be interested in
There are 36 forks on a table which represents 30% of the pieces of silverware. How many pieces of silverware are on the table?
AnnZ [28]

silverware* .30 = 36

divide by .30 on each side

silverware = 36/.30

silverware =120

5 0
3 years ago
Read 2 more answers
Which sentence correctly compares the number of 1 4 4 1 ​ -pound and 1 2 2 1 ​ -pound packages that the deli can slice from a 12
frutty [35]

The statements aren't given; however the number of 1/2 and 1/4 - pound package have been calculated below.

Answer:

Step-by-step explanation:

Given :

A 12 pound block :

Number of 1/2 pound packages that can be obtained :

12 ÷ 1/2 ;

12 * 2/1 = 24 (1/2 - Pound package) can be obtained.

Number of 1/4 pound package that can be obtained :

12 ÷ 1/4

12 * 4 /1 = 48 (1/4 - Pound package) can be obtained

We can obtain twice the number of 1/2 - pound package by using the 1/4 - pound slicing.

7 0
3 years ago
9 - (-8) • 3<br> Order of Operations
andrey2020 [161]

Answer:

33

Step-by-step explanation:

Order of Operations:

1. Parenthesis

2. Exponents

3. Multiplication/Division (left to right)

4. Addition/Subtract (left to right)

Step 1: 9-(-8) • 3

Step 2: 9-(-24)

Step 3: 9 + 24

Answer: 33

7 0
3 years ago
Read 2 more answers
A test has thirty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice
Vika [28.1K]
So let's break this question down.
You need a bit of both, right? Well we need to calculate how many multiple choices we can do whilst having true/false questions, and not going over or under on points.

So, let's pick a random number, 5. So let's do 8x5, that equals 40.
ohmygoditsrightiwasseriouslyjustguessing
Ok so now we have our number, 5 multiple choice questions. 
The true/false questions should be easy, just do 3x20 and you get 60.

ANSWER: 5 
5 0
4 years ago
Read 2 more answers
Pls Some Help me Asap Hot ta Get this done in 1st per
Kazeer [188]

    Ok, use the sum of triangle theorm all angles of the triangle has a sum of 180 degrees. B is 90 degrees because it labeled it self ABC the A angle seems by the degree to be at the top of the triangle and there needs to be a 90 degree angle in a right triangle. Now if you add 90 + 28 you get 118 degrees subtract that from the sum of all the angles ( 180 degrees), and get 62 degrees as angle C.  Angle A is 28 degrees, angle B is 90 degrees, angle C is 62 degrees.  

5 0
3 years ago
Other questions:
  • Name and describe all the angles in the drawing below
    6·2 answers
  • Which of the following describes the zeros of the graph...​
    10·1 answer
  • How many rotatuons are there in 1008 degrees (round to the nearest tenth)​
    6·1 answer
  • Find the value of P that makes the equation true
    6·1 answer
  • The polynomial
    15·1 answer
  • A small town decided to get into the holiday spirit during Halloween. Every person in
    15·1 answer
  • Measure Of Angle T. WILL GIVE BRAINLIEST
    10·1 answer
  • Oops I messed up on this one
    15·2 answers
  • Marie has 11 coins, all of which are quarters and nickels. In all, they're worth $1.15. How many of each kind of coin does Marie
    5·1 answer
  • Carol is baking cookies and needs 2 1/4 cup of flour,2/3 cup of white sugar, 1/4 cup of brown sugar and 1/16 cup of baking soda.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!