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
Aneli [31]
3 years ago
9

Evaluate 2x2 - 1 when x = 3.

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0
When x is evaluated to 3 you get 11.

2(3)2-1 = 11
tigry1 [53]3 years ago
6 0
X should equal 11
2(3)2-1
6(2)-1
12-1
11
You might be interested in
8x(5+10)= (8x5) + (5x10)
Slav-nsk [51]

Answer:

i think its x= 0.75

Step-by-step explanation:

substitute:

8x × 5 = 40x

8x × 10 = 80x

8 × 5 = 40

5 × 10 =50

40x + 80x = 40 + 50

add like terms

so it'd be:

120x = 90

now divide 90 by 120 and that would give you the value of x alone which is 0.75

7 0
3 years ago
Read 2 more answers
An element has half life of about 20 days. How much of 3000 gram sample is left after 100 days?
bagirrra123 [75]

t=100

p=3000

t 1/2 = 20

Try inserting the numbers in the half-life formula.

4 0
3 years ago
Read 2 more answers
Carter misses 25% of the free throws he attempts in a season. How many total free
Inga [223]

Answer:

so 25% of 63

63x25:100

15,75=

63+15.75=

78.75=

79 appx

Step-by-step explanation:

4 0
2 years ago
A recipe for guacamole uses 12% lime juice, if a batch contains 0.75 cup of lime juice, how large is the batch of guacamole?
FinnZ [79.3K]
0.75/0.12=6.25

the batch is 6.25 cups

8 0
3 years ago
Read 2 more answers
Find the measures of two angles, one positive and one negative, that are coterminal with the given angle. 254
Ksenya-84 [330]
360-254= -106
One angle is 254 and the other -106
4 0
3 years ago
Read 2 more answers
Other questions:
  • Answer the following questions
    9·2 answers
  • Multiply and write each product in the form y = ax2 + bx + c. Then identify a, b, and c.
    8·1 answer
  • Which expression correctly states that XY is congruent to VW?
    9·1 answer
  • A major television manufacturer has determined that its 44 inch screens have a mean service life that can be modeled by a normal
    13·1 answer
  • In the chart below shade each day that Ned will swim,circle each day Ned will bicycle
    15·1 answer
  • Round four point seven six to one decimal place
    10·1 answer
  • Which statement is correct?
    11·1 answer
  • Which expression is equivalent to (5x + 2) + (4x - 3)?
    6·1 answer
  • I need help please help with this question I will give brainliest this is a major grade so no joking around please
    8·1 answer
  • I need help!! Given: Quadrilateral pqrt , qsv , ptv , qv bisects rt , and Qr//pv
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!