Identify the number of solutions or zeros

2x^2+5x-9=0

Answers

Answer 1

Answer: There are going to be two solutions because the "biggest" x is x^2 but you can factor to find what they actually are.

Answer 2

Answer:

Final answer:

The quadratic equation 2x^2+5x-9 = 0 has two solutions or zeros, which may be real or complex. They can be found using the quadratic formula: x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Explanation:

The equation given is 2x^2+5x-9=0, which is a quadratic equation. The solutions or zeros of a quadratic equation can be found using the quadratic formula: x = [-b ± sqrt(b^2 - 4ac)]/2a. Here, a=2, b=5, and c=-9.

Let's substitute these values into the formula:

x = [-(5) ± sqrt((5)^2 - 4*2*(-9))]/2*2

x = [-5 ± sqrt(25 + 72)]/4

x = [-5 ± sqrt(97)]/4

Therefore, this equation has "two solutions" or zeros, which are x = [-5 + sqrt(97)]/4 and x = [-5 - sqrt(97)]/4.

Learn more about Quadratic Equations here:

brainly.com/question/30098550

#SPJ2

Related Questions

M = 2; (r,3) and (5,9)
52. Expand the brackets and simplify:a) X(2x + 3)
Which number is equivalent to 3⁴ ÷ 3²
Sidney flew in an airplane five times during her vacation.The flights averaged 2 hours 28 minutes long The lengths of her first four flights were 2 hours 10 minutes,3 hours 20 minutes,1 hour 15 minutes,and 2 hours 40 minutes.What was the length of her last flight?
A factory produces 90 packages of mixed nuts in 1 min. A quality control manager selected 8 of these 90 packages at random and then counted the number of nuts in each package. The manager recorded the results.31, 31, 32, 33, 35, 35, 35, 36 What is the estimated median number of nuts in all 90 packages?

The expression 3.14 x 103 is scientific notation for which of the following values? 314
3,140
31,400
314,000

Answers

Answer:

3140

B is the correct option.

Step-by-step explanation:

The expression in scientific notation is given by $3.14*10^3$

We can simplify $10^3$ as

$10^3\n=10*10*10\n\n=1000$

Therefore, the expression becomes

$3.14*1000$

On multiplying, we get

$3140$

B is the correct option.

$3.14*10^3=3.14*1000=3,140$

Identify whether the given value of the variable makes the equation true. –5r – 6 = –26; r = 4

A.false

B.true

Answers

- 5 r - 6 = - 26 for r = 4

- 5 * ( 4 ) - 6 = - 26

- 20 - 6 = - 26

- 26 = -26

B) true

hope this helps!

In 2001, a school population was 1140 . By 2007 the population had grown to 2124. How much did the population grow between the year 2001 and 2007 ?

Answers

Answer:

Step-by-step explanation:

we nee to subtract the number of population in 2007 with the number of population in 2001

2124-1140=1084

3 days to 1 week. Type as a ratio in the form of a fraction

Answers

3 days : 1 week

1 week = 7 days

therefore 3 days : 1 week = 3 days : 7 days = 3 : 7

F(x)=24/3x-2. find f(-2

Answers

f(x) = 24/3x - 2

f(-2) is plugging in -2 for 'x':

f(-2) = 24/3(-2) - 2

f(-2) = 24/-6 - 2

f(-2) = 24/-8

f(-2) = -3

So -3 is your answer.

Blueberries contain sugars like glucose. What is the source of carbon for the glucose in blueberries? A. Carbon atoms in fertilizer
B. Carbon dioxide gas in air
C. Carbon dissolved in water
D. Carbon molecules in the soil