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4 years ago

If the discriminant of an equation is positive, which of the following is true of the equation?

1 answer:

3 0

D>0 that means it has two real solutions (unequal).
It can have one solution only if D=0 and complex solutions only if D<0. 

D means discriminant

Answer: B it has two real solutions

hope this helps :)

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What is n how how did u get the answer

olya-2409 [2.1K]

If n = number of African animals then,
n/2 +45 = 172
n/2 = 127
n = 254 animals

Hope i helped!

6 0

4 years ago

Three fourths of the fruit in a refrigerator are apples there are 24 apples in the refrigerator how many pieces of fruit are in

Brilliant_brown [7]

32 pieces of fruit, set up a proportion

6 0

3 years ago

Sally has 2 cups of flour .she uses 3/4 cup to bake muffins and 3/8 cup flour to bake cookies and 3/8 cup flour for pancakes .ho

Ilya [14]

Hai
Sally has 2 cups of flour .she uses 3/4 cup to bake muffins and 3/8 cup flour to bake cookies and 3/8 cup flour for pancakes .how much flour does Sally have left?

1/2

8 0

3 years ago

Read 2 more answers

The data below are times (in seconds) recorded when statistics students participated in an experiment to test their ability to d

RoseWind [281]

Answer:

Mean = 58.25

Median = 57.5

Mode = 49

Step-by-step explanation:

We are given the following data set:

55, 51, 74, 61, 67, 60, 49, 49

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{466}{8} = 58.25$

Sorted data:

49, 49, 51, 55, 60, 61, 67, 74

Mode is the entry with highest frequency.

49 appeared two times.

Mode = 49

Formula:

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

$\text{Median} = \dfrac{55+60}{2} = 57.5$

All these are less than 60 seconds, which indicates that students perceive 1 minute to pass sooner than it actually has.

8 0

3 years ago

Mrs. Owens laid carpet in a rectangular room 12 ft by 15 ft

Rainbow [258]

Answer:

180 sq ft

Step-by-step explanation:

12 x 15 = 180

5 0

3 years ago