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11Alexandr11 [23.1K]
3 years ago
5

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0

Answer:

Step-by-step explanation:

A discriminate of -8 is never going to give you a real root. D is wrong

You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.

So the answer is B. You have 2 complex roots.

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96 sq meters
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It’s 84 you just break into three pieces and find the side lengths
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3 years ago
The school that Ted goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 7 adult
IrinaVladis [17]

Answer:

Adult= $24

child= $21

Step-by-step explanation:

first let's create an equation for each one.

Day 1: 7x+8y=168

day 2: 14x+13y=294

By doing so we can either graph and get the points for x,y or we can substitute each (x=0) (y=0) and solve manually.

x-int.= (24,0)

y-int.=(0,21)

3 0
3 years ago
Ms. Powell bought 12 cookies for $4.00 and Ms. Malley bought 8
Aleks04 [339]

Answer:

Ms. Powell paid around 33 cents for each cookie

Ms. Malley paid around 43 cents for each cookie

Ms. Powell had the better deal

Step-by-step explanation:

Divide the amount paid with the amount of cookies bought so 4 ÷ 12 = 0.3333... and 3.50 ÷ 0.4375...

I hope this helped!

6 0
2 years ago
Read 2 more answers
BRAINLIST ANSWER- You and your friends want to rent a limo on prom night. The limo costs $75 per hour plus a $50 booking fee. Yo
Lelu [443]
First, you would want to subtract the booking fee from the total amount of money you have to spend. 350-50 = 300. 
After paying the booking fee, you would have 300 dollars left to spend. Now, divide the amount of money you have left in all by the cost per hour. 300/75 = 4. 
The answer is B, because you can have the limo for 4 hours.
Hope that helped you.
5 0
3 years ago
Read 2 more answers
Answer for brainliest
RUDIKE [14]

Step-by-step explanation:

diameterfor first minute :

Circumference = 25.12

2πr = 25.12

22/7 × r = 25.12/2

r = 12.56 × 7 /22

r = 87.92/22

r = 3.99 mm ( approx. )

diameter = 2r = 2 × 3.99 = 7.98 mm

diameter for second minute =

circumference = 75.63

2πr = 75.63

πr = 75.63/2

r = 37.815 × 7/22

r = 264.705/22

r = 12.032 mm

diameter = 2r = 24.064 mm

<em><u>COMPARISON</u></em><em><u> </u></em>: 24.064/7.98

<u>3 times greater ( approximately )</u>

7 0
2 years ago
Read 2 more answers
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