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
Alex17521 [72]
4 years ago
14

The expression 2x to the second power + 1 when x equals negative 2

Mathematics
1 answer:
pantera1 [17]4 years ago
4 0
17

2x^2+1

x=-2

2(-2)^2+1 <First substitute -2 as x
-4^2+1 <Multipy
16+1 <Square 4^2
17
You might be interested in
A gardener wishes to plant plants in such a way that each row contains as many plants as the number of rows. He has 2624 plants.
vagabundo [1.1K]

Answer:

80

Step-by-step explanation:

we search for a square number so that rows*plantsInARow gives us the number

The number should be around 50², guessed

50² = 2500 (to low)

51² = 2601 (still to low)

52² = 2704 (bingo)

now to get from 2624 to 2704 plants he needs 80 more. That is the least number.

He could also go to plant 60² plants an than need slot more.

(would really appreciate the brainliest)

8 0
3 years ago
Practice:
Marianna [84]

Answer:

C. (-0.82, -0.57)

Step-by-step explanation:

I calculated it logically

7 0
3 years ago
the sum of the angle measures of any triangle is 180 degrees. suppose that one triangle has a degree measure of 9x+2 and the oth
Zolol [24]
9x + 2 + 8x + 1 = 17x + 3
The answer is 180 - 17x + 3 I'm pretty sure
3 0
4 years ago
Solving proportions
Genrish500 [490]

Answer:

2x - 12 = 9x - 63 \\  \\ 63 - 12 = 9x - 2x \\ 51 = 7x \\ x = 7.2

4 0
3 years ago
Karl's car went 550 miles on 33 gallons of gas. Which equation does NOT give the correct unit rate, x, in miles per gallon for K
jekas [21]

Answer:

x = 550 ÷ 33




what are the answer choises

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Other questions:
  • How many meters does it take to make 1 kilometer
    15·2 answers
  • I have 3 problems that I don't understand on my home work can some one help
    5·2 answers
  • Find the area ASAP!!!!
    7·1 answer
  • The cost of a pearl $C is directly proportional to the square of its mass , m grams. given that a pearl of mass 10g cost $240
    14·2 answers
  • I need help please I don’t understand
    10·1 answer
  • Pls help with both the equations​
    7·1 answer
  • Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explana
    12·1 answer
  • The maximum and minimum Values of a quadratic function are called as______of the function.
    10·1 answer
  • When three squares are joined at their vertices to form a right triangle, the combined area of the two smaller squares is the sa
    14·2 answers
  • 600 is blank times as much as 6 ANSWER FAST!!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!