All categories

3 years ago

2x^2+3x-1=0 quadratic equation

Mathematics

2 answers:

GrogVix [38]3 years ago

8 0

Answer:

The quadratic formula used to solve a quadratic of the form ax^2+bx+c is:

x=(-b±√(b^2-4ac))/(2a) so in this case:

x=(3±√(9+8))/4

x=(3±√17)/4

Step-by-step explanation:

gtnhenbr [62]3 years ago

6 0

Answer:

2x^2+3x=1

Step-by-step explanation:

You might be interested in

Find the values of a and b such that x^2 + 3x + 4 = (x + a)^2+ b

sesenic [268]

Answer:

$x {}^{2} + 3x + 4 = (x + a) {}^{2} + b \\ x {}^{2} + 3x + 4 = x {}^{2} + 2ax + a {}^{2} + b \\ = x {}^{2} + a {}^{2} + 2ax + b \\ 2a = 3 \\ b = 4 \\ a = \frac{3}{2} \\ b = 4$

8 0

3 years ago

Can an absolute value equal a negative?

Montano1993 [528]

The distance of it away from zero cannot be a negative distance, distance is always positive therefor the absolute value will always be positive.

Short answer: no, absolute value is always positive

I hope this helps :)

7 0

3 years ago

Choose two angles that are each separately alternate exterior angles with 412.

Alborosie

Answer:

∠2 and ∠5

Step-by-step explanation:

we know that

Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal

In this problem

∠12 and ∠2 are alternate exterior angles

∠12 and ∠5 are alternate exterior angles

therefore

∠2 and ∠5 are each separately alternate exterior angles with ∠12

6 0

3 years ago

Diane serves breakfast to two groups of children at a daycare center. One box of oaties contains 12 cups of cereal.She needs 1/3

IRISSAK [1]

11(1/3)+(3/4)10 = 11/3+30/4
44/12+60/12=104/4 = 26 cups one box is not enough u will need three

6 0

3 years ago

Write 2 equivalent ratios for each ratio given: 2/7 3:3 1/2 2.5 to 6

goldenfox [79]

Answer:

2/7 = 4/14

3:3 = 6:6

1/2 = 2/4

2.5:6 = 5:12

Step-by-step explanation:

For the first one, we can multiply the numerator and denominator of the fraction by 2 to get an equivalent fraction which is 4/14

For the second one we can multiply each side by 2 to get the ratio of 6:6

For the third one we can multiply the numerator and denominator by 2 to get 2/4

For the last one we can multiply each side by 2 to get 5:12

8 0

3 years ago