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
Vlad [161]
4 years ago
12

X2 + 3x - 4 = 0 Find the value of the discriminant. A) 5 B) 6 C) 10 D) 25

Mathematics
1 answer:
sashaice [31]4 years ago
3 0

Answer:

D

Step-by-step explanation:

given a quadratic equation in standard form

ax² + bx + c = 0, then the discriminant is

Δ = b² - 4ac

x² + 3x - 4 = 0 ← is in standard form

with a = 1, b = 3, c = - 4

b² - 4ac = 3² - (4 × 1 × - 4) = 9 - (- 16) = 9 + 16 = 25 → D

You might be interested in
In order to select new board members, the French club held an election. 50% of the 52 members of the club voted. How many member
kiruha [24]

Answer:

26 Members Voted

Step-by-step explanation:

50 % is 50/100

Voted = (50/100) X 52 = 52/2 = 26

3 0
3 years ago
Read 2 more answers
What is the slope of the line passing through the points (-1,-7) and (-9,-2)?
nalin [4]

Answer: m = -5/8

Step-by-step explanation:

The general equation for slope is rise over run, also known as:

m=(y2-y1)/(x2-x1)

From the points (x, y), we can get all the variables we need.

(-1, -7) gives us x1 = -1 and y1 = -7

(-9, -2) gives us x2 = -9 and y2 = -2

If we plug all the values in, we get:

m = (-2 - (-7))/(-9 - (-1))

m = (-2 + 7)/(-9 + 1) the negatives cancel

m = (5)/(-8)

m = -5/8

7 0
3 years ago
WILL MARK BRAINLIEST!!!
Ludmilka [50]

Answer:

(C. one solution

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Nick's Printing Press promptly sold 5-cent pencils and 10-cent pens to the public. It sold 1000 writing utensils and took $74.50
galben [10]

Answer:

  • 490 pens
  • 510 pencils

Step-by-step explanation:

Let p represent the number of pens Nick sold. Then the revenue is ...

  0.10p +0.05(1000 -p) = 74.50

  0.05p = 24.50 . . . . . . eliminate parentheses, subtract 50

  p = 490 . . . . . . . . . . . . multiply by 20

The number of pencils sold is then ...

  pencils = 1000 -490 = 510

Nick's Printing Press sold 490 pens and 510 pencils.

4 0
3 years ago
Why is my dad so mean to me?
Vladimir79 [104]
To be honest there are lots of different reasons. You might want to try and talk to him to let him now how he is making you feel.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The container that holds the water for the football team is 7/10 full. after pouring out 3 gallons of water, it is 1/2 full. how
    8·1 answer
  • The depth of a lake is 1,400 meters.What is the depth in kilometers?
    11·2 answers
  • Given: <1 and <2 and supplements, <3 and <4 are supplements, and <1 ≅ <4
    12·1 answer
  • What is 2/300 as a decimal?
    9·1 answer
  • Please help with this question!<br><br><br>​
    5·1 answer
  • The value of a $120,000 house increases by 1.3% per year.
    7·1 answer
  • (4 pts) If a rock is thrown vertically upward from the surface of Mars with an initial velocity of 15m/sec
    15·1 answer
  • Questions 6,7 please help!
    14·1 answer
  • Morgan determined he needed 45 1/2 yards of wire fencing for his landscaping project. He already had 17 3/4 yards. How much more
    7·1 answer
  • Is (x + 1) a factor of 10x^3 - 15x^2 + 7x + 32?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!