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3 years ago

If the discriminate of a quadriatic equation is 4, how many solutions does the equation have?

Mathematics

1 answer:

Tanya [424]3 years ago

5 0

Answer:

two solutions

Step-by-step explanation:

If you have a discriminant value greater than zero (not zero and not negative), you're gonna have two solutions. For zero discriminant, one solution. For negative discriminant, no solutions at all.

Make sure you remember this. It will save you from solving a quadratic equation which has no solutions.

You might be interested in

1. Which inequality could describe the data set shown below ? { 200,300,400,500} x = 200 x > 200

Sliva [168]

Answer:

X>1

Step-by-step explanation:

5 0

3 years ago

Chelsey puts twelve colored pieces of chocolate candy in a bag. Three pieces are green,

nydimaria [60]

Answer:

A) 3/110

B) 3/110

C) 3/110

D) The order doesn’t matter as long as you are drawing out the same three colors. The probability doesn’t change.

Step-by-step explanation:

A) 3/12x3/11x4/10=36/1320= 9/330 = 3/110

B) 3/12x4/11x3/10=36/1320= 9/330 = 3/110

C) 4/12x3/11x3/10=36/1320 = 9/330 = 3/110

D) The order doesn’t matter as long as you are drawing out the same three colors. The probability doesn’t change.

I hope this helps! Have a good day (PLZ GIVE BRAINLIEST)

8 0

3 years ago

The arrival time of a professor to her office is uniformly distributed in the interval between 8 and 9 A.M. Find the probability

NeTakaya

Answer:

0.025

Step-by-step explanation:

Given that the arrival time of a professor to her office is uniformly distributed in the interval between 8 and 9 A.M.

If the professor did not arrive till 8.20 he will arrive between 8.21 and 8.40

Hence probability for arriving after 8.20 is 1/40

Prob he arrives at exactly 8.21 is 1/60

To find the probability that professor will arrive in the next minute given that she has not arrived by 8: 20.

= Prob that the professor arrives at 8.21/Prob he has not arrived by 8.20

This is conditional probability and hence

= $P(professor arrives at 8.21)/P(professor arrives after 8.20)\\= \frac{\frac{1}{60} }{\frac{40}{60} } \\=\frac{1}{40} \\=0.025$

7 0

4 years ago

A car's speed is 80 2/3 miles in one hour. Going at the same speed, how far (in miles) will it travel in 2 1/4 hours?

hichkok12 [17]

Answer:

181.5 miles

Step-by-step explanation:

80 2/3 m/hr * 2 1/4 hr = 181. 5 miles

8 0

2 years ago

Find the midpoint of the line segment that has endpoints at (10,8) (-3,-10)

dem82 [27]

Hey there! :)

Answer:

(3.5, -1).

Step-by-step explanation:

Use the midpoint formula to solve this problem:

$(x_m, y_m) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

Plug in the coordinates given:

$(\frac{10-3}{2}, \frac{8-10}{2})$

Simplify:

$(\frac{7}{2}, \frac{-2}{2})$

Therefore, the coordinates of the mid-point are:

(3.5, -1).

7 0

3 years ago