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
Alona [7]
3 years ago
8

Determine the discriminant of x2 = 4. A. 17 B. 16 C. -15 D. -10

Mathematics
2 answers:
tino4ka555 [31]3 years ago
6 0
The discriminant is b<span>²-4ac
We can rewrite x</span>² = 4 to x<span>² + 0x - 4 = 0
So a = 1, b = 0, c = -4
</span>Δ = 0 - 4 * 1 * -4
Δ = 16
The answer is B
belka [17]3 years ago
4 0
X² = 4

x² - 4 = 0   comparing to  a<span>x² + bx + c = 0,   a = 1, b = 0, c = -4
</span>
Discriminant = b² - 4ac

b² - 4ac = 0<span>² - 4*1*-4 = 0 + 16 = 16

Discriminant = 16.

option B </span>
You might be interested in
Difference between a number and its positive square root is 12 Find the number.
SVETLANKA909090 [29]

Answer:

156

Step-by-step explanation:

x - √+ = 12

= 12^2= 144

x = 144

3 0
2 years ago
David measures how many inches his tomato plant grows every week. What is the independent variable?​
Norma-Jean [14]

Answer:

It is tomato plant

Step-by-step explanation:

- The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable. - - - The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.

7 0
3 years ago
Suppose the population of a town is 8,200 and is growing 4% each year, what is the population expected to be in 10 years
miv72 [106K]

Answer:

12,138 people

Step-by-step explanation:

Create an equation using the basic exponential growth equation:

y = a(1 + r)^t, where a is the initial amount, r is the growth rate as a decimal, and t is the amount of time in years.

Plug in the values we know

y = a(1 + r)^t

y = 8200(1 + 0.04)^10

y = 8200(1.04)^10

= 12,138 people

8 0
3 years ago
Find the slope between the two given points: (-2,-1) and (-4,-7)<br><br><br> pls helppp
Zielflug [23.3K]
-7+1/-4+2 is -6/-2 which is 3
6 0
2 years ago
A: Complementary
stiv31 [10]

Answer:

Vertical

Step-by-step explanation:

Vertical angles are two nonadjacent angles formed by two intersecting lines.

3 0
1 year ago
Read 2 more answers
Other questions:
  • What’s the number of cups in 7 pints in a equation
    12·1 answer
  • A lighthouse keeper has a 10º angle of depression between the horizontal light beam and the line of sight from the ship. If the
    10·2 answers
  • Need help with number 8 please
    15·1 answer
  • Line m is represented by the function f(x) = 1/3x +5/2. After transformation, the image, line m’, is represented by the function
    9·2 answers
  • Ala has 24 dollars, Barb has 66 dollars, and Sophia has as many dollars more than Ala as she has less
    7·1 answer
  • Find the missing side or angle. Round to the nearest tenth. C=95° a=5 c=6 A=[?]° ​
    14·1 answer
  • What is 6.92x10^-3 written in standard form?
    13·1 answer
  • HELP ME FIND THE MEASURES OF THESE ANGLES PLEASE!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • 3. Use substitution to solve the system of
    5·1 answer
  • 4/5 x 7 need help asap​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!