3 years ago

2x^2+6x+3=0 Solve for quadratic formula

Mathematics

2 answers:

3241004551 [841]3 years ago

8 0

Answer:

x= (-3 +- sqrt3)/2

Step-by-step explanation:

Bond [772]3 years ago

4 0

Exact Form:

x=(-3± √ 3)/2

Decimal Form:

x = − 0.63397459 … , − 2.36602540 …

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Surface area of rectangular prism.

Kamila [148]

Answer: 62unit^2

Explanation

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3 years ago

The edges of a cube are 5 cm each and the diaganol of a face is approximately 7 cm what is the approximate area of the cross sec

xxTIMURxx [149]

Answer:

The approximate area is 35 square centimeters

Step-by-step explanation:

we know that

The cross section passing through the diagonal of opposite faces of the cube is a rectangle

the approximate area is equal to

$A=bh$

where

b is the diagonal of a face

h is the length side of the cube

we have

$b=7\ cm\\h=5\ cm$

substitute

$A=7(5)=35\ cm^2$

7 0

4 years ago

The formula for height, in feet of a projectile under the influence of gravity is given by h=-16t^2+vt+s, where t is the time in

kifflom [539]

Answer:

1.55s

Step-by-step explanation:

The height equation of the projectile is given as;

h = -16t^2 + vt + s .......1

where;

t is the time in seconds,

v is the upward velocity at the start,

s is the starting height.

Given;

v = 70 ft/s

s = 5 ft

Substituting the values equation 1 becomes;

h = -16t^2 + 70t + 5

For the ball to reach 75 ft, h = 0

75 = -16t^2 + 70t + 5

-16t^2 + 70t + 5 - 75 = 0

-16t^2 + 70t - 70 = 0

solving the quadratic equation;

Time t = 2.83 s and t = 1.55s

Therefore, the ball will first reach 75 ft after 1.55 seconds.

3 0

3 years ago

Help please! Timed **********

DanielleElmas [232]

Answer:

From my understanding it looks like the scond option. Hope it is right:)

5 0

4 years ago

Plz helppppppppppppp

lisov135 [29]

Answer:

not helping you

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers