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
kirza4 [7]
3 years ago
9

Evaluate 3x^2- 9 when x=-2

Mathematics
2 answers:
murzikaleks [220]3 years ago
6 0

Answer:

3

Step-by-step explanation:

We know x = -2, so we can substitute -2 in for x

3x^2- 9

3*-2^2-9

Solve the exponent first (PEMDAS)

3*4-9

Multiply next

12-9

Subtract

3

FrozenT [24]3 years ago
3 0

Answer:

3

Step-by-step explanation:

3x^2- 9 =

= 3(-2)² - 9

= 3×4 - 9

= 12 - 9

= 3

You might be interested in
Divide. Write the quotient in the lowest terms.<br> 12 / 1 1/5
Simora [160]

Answer:

60/11

Step-by-step explanation:

12/11/5 =12*5/11 =60/11 =5.454545454545

7 0
3 years ago
What is the value of the function y=3x−1 when x =−1 ?<br><br><br> −8<br><br> −4<br><br> 2<br><br> 6
Shtirlitz [24]
So check my calculations,
Plug in -1 into the first equation as x
y= 3(-1)-1
y=-3-1
y=-4
Hope I helped! Do not hesitate to ask any questions :)
8 0
3 years ago
jose's family is traveling 345 miles to an aquarium. They have already traveled 131 miles. How many more miles must you travel t
Luden [163]

Answer:

214 more miles

Step-by-step explanation:

345-131= 214

6 0
3 years ago
Read 2 more answers
Oscar Montez’s savings account has a principal of $7,201. It earns 6% interest compounded quarterly. What is the amount of inter
Iteru [2.4K]
Compounded quarterly means that one quarter of the interest is added to the account each quarter one quarter of 6% is 1.5% x = 7201 (1 + .06/4)^2 ___ .06/4 is the interest per compounding , and 2 is the number of compoundings
5 0
4 years ago
Write and solve an equation to find the missing dimension of the prism
AlekseyPX

Step-by-step explanation:

EQUATION: Volume=length x width x height.

V=l×w×h

1620cm^3=9cm×9cm×xcm

1620cm^3=81cm^2 ×xcm

xcm= 1620cm^3/81cm^2

xcm= 20cm

6 0
3 years ago
Read 2 more answers
Other questions:
  • Twelve large bottles of water cost $9. How much would 7 bottles of water cost?
    9·2 answers
  • The CEO of a software company is committed to expanding the proportion of highly qualified women in the organization’s staff of
    12·1 answer
  • Recently, Frank took a one-hundred question aptitude test where each correct answer scored 5 points, each incorrect answer score
    5·2 answers
  • a movie was sold out for four straight days. If 535 tickets were sold each day, how many tickets were sold in all???
    8·1 answer
  • Can someone help me pls
    14·1 answer
  • Need Expert Answer Asap! Solve For X,Y,Z.
    13·2 answers
  • On a​ map, 1 inch equals 5 miles. Two cities are 3 inches apart on the map. What is the actual distance between the​ cities?
    11·1 answer
  • CHECK THE PICTURE AND PLEASE HELP IT'S GEOMETRY!
    6·1 answer
  • Write the standard form of the equation of the circle with center (8,−1) that passes through the point (6,7)
    9·1 answer
  • A function is represented by the graph. Complete the statement by selecting from the drop-down menu. The y-intercept of the func
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!