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
Gelneren [198K]
1 year ago
8

If x= -2 and y=√12 then 2(3x³+ 2y²)=

Mathematics
1 answer:
Illusion [34]1 year ago
7 0

Answer:

Step-by-step explanation:

Begin by filling in x as -2 and y as √12 in the given expression:

2(3(-2)^3+2(\sqrt{12})^2).  Work inside the parenthesis first and deal with those exponents:

(-2)³ is the same as (-2)(-2)(-2) which is -8;

(√12)² is the same as (√12)(√12) which is √144 which is 12.

Filling those simplifications in:

2(3(-8)+2(12))=2(-24+24)=2(0)=0

You might be interested in
Estimates show that there are 1.4*10^8 pet fish and 9.4*10^6 pet reptiles in the United States.
Readme [11.4K]
\bf \stackrel{fish}{1.4\times 10^8}~~+~~\stackrel{reptiles}{9.4\times 10^6}
\\\\\\
\stackrel{fish}{140000000}~~+~~\stackrel{reptiles}{9400000}\implies 
\begin{array}{rrrrllll}
140000000\\
+9400000\\
\text{\textemdash\textemdash\textemdash\textemdash\textemdash}\\
149400000
\end{array}\implies 1.494\times 10^8
5 0
3 years ago
What time did they arrive at the airport?
Ainat [17]

Answer:

32

Step-by-step explanation:

7 0
3 years ago
A car costs $9,000. If Mr.Smith has saved 20% of this amount, how much did he save?
olga2289 [7]

Answer:

the answer for your question would be 1800

Step-by-step explanation:

you multiply 9000 times by .20

5 0
3 years ago
Read 2 more answers
NEED HELP FAST!!!!! The graph below compares plant height to the age of the plant, in weeks. Y=1.3x-0.8 Based on the graph, whic
salantis [7]

Answer:

C) 6 inches

Step-by-step explanation:

Given function:

Y=1.3x-0.8

The function compares plant height in inches to the age of plant in weeks.

So, we can say

Y represents height of plant in inches.

x represents age of the plant in weeks.

In order to predict the height of the plant in 5 weeks, we will plugin x=5 in the given function and evaluate Y

⇒ Y=1.3(5)-0.8

⇒ Y=6.5-0.8

⇒ Y=5.7 inches

Thus the approximate height of plant in 5 weeks would be \approx 6 inches

7 0
3 years ago
Read 2 more answers
Write a prompt about something you learned in math. (6th grade) Please help its due today Ill give you brainliest
katovenus [111]

Answer:

think about some new things in math you been doing, probably recent

like learning how to divide fractions or something

Step-by-step explanation:

hope this helps at least a bit

have a great day

8 0
3 years ago
Read 2 more answers
Other questions:
  • Add (6x^2-3x)+(5x-7)
    6·2 answers
  • Which of the following histograms represents this set of data?
    10·1 answer
  • One winter day, the outside temperature, y, was never below −1°. The inside of a car was always warmer than the temperature outs
    15·2 answers
  • Can you help with #17
    13·1 answer
  • Elisa withdrew $20 at a time from hermano account and withdrew a total of $140. Francis withdrew $45 at a time from his bank acc
    11·1 answer
  • Pls help or else i will steal ur cookies >:)
    13·1 answer
  • Which equation below has a slope greater than the slope of the line shown above?
    9·1 answer
  • What is the decay factor in the exponential decay function y=a (1-r) t
    7·1 answer
  • Need help in my quiz bc I want to passsss pls send helps
    13·1 answer
  • Determine which postulate can be used to prove that the triangles are congruent. If it
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!