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
Anna [14]
3 years ago
6

Solve 2x2 + x − 4 = 0.

Mathematics
2 answers:
vova2212 [387]3 years ago
7 0
Or you can use the app symbolab or mathpapa
Marina CMI [18]3 years ago
5 0

Answer:

x=0

Step-by-step explanation:

You start off with 2*2+x-4=0 (I may have read the question wrong)

Simplify: 4+x-4=0

Simplify again lol: x=0

x=0

You might be interested in
Is 11/16 bigger than 3/4
Goryan [66]
No 3/4 is bigger

if you multiply the top and bottom of 3/4 by 4, you get 12/16.

11/16 <12/16
8 0
3 years ago
I just need help with the equation part
guajiro [1.7K]

Answer:

just list the number of albums times the amount they cost plus songs and how much they cost and you got your equation

Step-by-step explanation:

3 0
3 years ago
30 points<br> can somebody please help me<br> question below
Inessa05 [86]

Find the total number of dogs by adding each day:

Total dogs = 23

Percent of dogs: Divide the number of dogs by the total number of patients:

= 23 / 50 = 0.46 x 100 = 46%

Use the given formula to find the standard error:

Standard error = √(0.46*(1-0.46)/50) = 0.07

90%: Find Z value for 90% ( 1.645) multiply by SE:

1.645 x 0.07 = 0.115 = 0.12

Now add and subtract that value from the Percent from above:

46 + 12 = 58%

46-12 = 34%

Answer (34%, 58%)

95%: Find Z value for 95% ( 1.96) multiply by SE:

1.96 x 0.07 = 0.137 = 0.14

Now add and subtract that value from the Percent from above:

46 + 14 = 60%

46-14 = 32%

Answer (32%, 60%)

5 0
3 years ago
Carbon-14 has a half-life of 5,730 years. If a sample contained 70 mg originally, how much is left after 17,190 years?
kow [346]

17,190 / 5,730 = 3. This means we must divide 70mg in half 3 times

70 / 2 = 35

35 / 2 = 17.5

17.5 / 2 = 8.75

There will be 8.75 mg left after 17,190 years.

7 0
3 years ago
2. Write the slope-intercept form of the equation for each graph described. Line passing through (-5, 12) and parallel to the li
Nostrana [21]

Answer:   y = 2x+22

========================================================

Explanation:

The equation y = 2x+5 is in the form y = mx+b

m = 2 = slope

b = 5 = y intercept

Parallel lines have equal slopes, but different y intercepts. So the answer will be in the form y = 2x+c, where b and c are different numbers. Since b = 5, this means c must be some other number. If c = 5, then we'd have the exact same line.

Let's plug in (x,y) = (-5,12), along with the slope m = 2, and solve for c

y = mx+c

12 = 2(-5)+c

12 = -10+c

12+10 = c

22 = c

c = 22

Since m = 2 and c = 22, we go from y = mx+c to y = 2x+22

The equation of the parallel line is y = 2x+22

The graph is below.

7 0
3 years ago
Other questions:
  • What is 2log5(5x^3)+(1/3)log5((x^2)+6) written as a single logarithm?
    10·2 answers
  • What 2 numbers can you multiply to get 31? can 31 get into smaller groups?
    13·1 answer
  • -1/6 + 2/3( 9 - 3/4 ) - 1/2
    13·1 answer
  • What is the square route of 49
    13·2 answers
  • Complete the square so that the left side of x2 + 8x − 3 = 0 becomes a binomial squared. (x +___)2 = ___
    9·1 answer
  • A bag contains ten marbles of equal size and weight. One marble is blue, one marble is white, three are yellow, and five marbles
    14·1 answer
  • What is the equation of a line that passes through points K(3, 5) and L(9, 3)?
    13·1 answer
  • Sarah drives her car for 2 1/2 hours with a constant speed of 60 mph. What is the distance Sarah traveled?
    12·1 answer
  • Help me solve this thanks!!1 : )
    11·2 answers
  • Cho biết hàm cầu đối với một loại hàng hóa nhất định là ( USD / đơn vị sản phẩm ) P = -0,21. Q ^ ( 2 ) -0,84.Q+ 50 Thặng dư của
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!