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dem82 [27]
2 years ago
6

Explain why a positive discriminant results in two real solutions...

Mathematics
1 answer:
marta [7]2 years ago
3 0
You have three cases for a discriminant:

1. Zero 
A zero in the discriminant means that there is one solution, since it's ... plus/minus zero, which is just ... 

2. Negative
Negative means no real solutions, as the square root of a negative number is not real. 

3. Positive
If you have a positive number within the square root, it means that your solutions will be ... plus/minus whatever the square root is. One solution is the plus, and one solution is the minus, hence two solutions. 

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There is a vendor at a carnival selling bags of cotton candy. Each bag of cotton candy has the same cost. She starts each day wi
umka21 [38]

Answer:

The cost of each cotton candy bag is $4.

Step-by-step explanation:

Consider the provided information.

Let, the vendor has x dollar at the starting of each day.

Let, the cost of each cotton candy bag is y.

Now when she sells a total of 12 bags, she has $128.

x+12y=128  .....(1)

After she sells a total of 20 bags, she has $160.

x+20y=160  ....(2)

Subtract equation 1 from equation 2.

(x+20y)-(x+12y)=160-128

8y=32

y=4

Hence, the cost of each cotton candy bag is $4.

6 0
3 years ago
Write the coefficient of a in 7 a​
Arturiano [62]

Given:

The term is 7a.

To find:

The coefficient of "a" in the given term "7a"​.

Solution:

In the product of a number and a variable, the number is called the coefficient of that variable.

In the expression "7a", the number is "7" and the variable is "a". It means the number 7 is the coefficient of "a".

Therefore, the coefficient of "a" in the given term "7a" is 7​.

8 0
2 years ago
List all the 4 digit numbers that fit these clues
natita [175]
If you give the clues I could help.
4 0
3 years ago
Write the following numbers in expanded notarion: a. 100 005. b. 84 016. c. 9 078. d. 113. e. 75.​
shusha [124]

Answer:

Step-by-step explanation:

a. 100005

1 x 1000000 + 0 x 100,000 +  0 x 10000 + 0 x 1000 + 0 x 100 +  0 x 10 + 5 x1

1 x 10^6  + 0  x 10^5  + 0 x 10^4  + 0 x 10^3 + 0 x 10^2 +  0 x 10^1  + 5 x 1

= 100,000 + 0 + 0 +0 +0 + 5

b.  84016

 8 x 10000 + 4 x 1000 + 0 x 100 + 1 x 10 + 6 x 1

80000 + 4000 + 0 + 10 + 6

c. 9078

9 x 1000 + 0 x 100 + 7 x 10  + 8 x 1

9000 + 0 +7 + 8

d. 113

1 x 100 + 1 x 10 + 3 x 1

100 + 10 + 3

e. 75

7 x 10 + 5 x 1

70 + 5

6 0
2 years ago
Mega picked 34 flowers. Some of the flowers are yellow and 18 flowers are pink.how many of the flowers are yellow?
kirill [66]
34-18=16 so she would have 16 yellow flowers
6 0
3 years ago
Read 2 more answers
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