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4 years ago

Find the discriminat of each quadratic equation then state the number and type of solutions

1 answer:

8 0

Hello :
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x = (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions

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P-4=-9+p

pantera1 [17]

Answer:

no solution

Step-by-step explanation:

p-4=-9+p

p=-5+p

0=-5

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3 years ago

The bowl of a circular birdbath has an inside diameter of 18 inches, as shown in the drawing belon.

Step2247 [10]

Answer:

254 square inches

Step-by-step explanation:

A=pi*r^2

A=pi*(d/2)^2

A=3.14*(18/2)^2

A=3.14*(9)^2

A=3.14*81

A=254.34 in^2

So, rounded no the nearest whole, the answer is 254 in^2

Which is option 2 or B

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4 years ago

ITO

Setler [38]

Using the speed - distance relationship, the time left before the appointed time is 27 minutes.

Recall :

Distance = speed × time

Let time = t

At 10mph :

Distance = 10 × (t + 3) = 10t + 30 - - - (1)

At 12 mph :

Distance = 12 × (t - 2) = 12t - 24 - - - - (2)

Equate (1) and (2) :

10t + 30 = 12t - 24

Collect like terms

10t - 12t = - 24 - 30

-2t = - 54

Divide both sides by - 2

t = 54 / 2

t = 27

Hence, the time left before the appointed time is 27 minutes.

Learn more : brainly.com/question/25669152

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2 years ago

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Divide: (x2 – 3x – 33) = (x + 4)

katovenus [111]

Answer:

x-7-5/x+4

So answer C

Step-by-step explanation:

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3 years ago

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The results of a poll show that the percent of people who want a new restaurant is in the interval (62%, 88%)(62%, 88%) . There

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Required percentage = (0.62 x 109482, 0.88 x 109,482) = (67879, 96,344)

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3 years ago

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