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Debora [2.8K]
3 years ago
9

What is the discriminant of the polynomial below?2x + 47-9​

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

Answer:

x = -19

Step-by-step explanation:

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I need help showing the work on this problem is 751.2÷25= need help
JulsSmile [24]

Answer: 30.048

Try a calculator, it can help a lot!

6 0
3 years ago
Evaluate the variable expression when a=-4, b=2, c=-3, and d =4. b-3a/bc^2-d​
gtnhenbr [62]

Answer:

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

\dfrac{b-3a}{bc^{2}-d}=1

Step-by-step explanation:

Evaluate:

\dfrac{b-3a}{bc^{2}-d}

When a=-4, b=2, c=-3, and d =4

Solution:

Substitute, a=-4, b=2, c=-3, and d =4 in above expression we get

\dfrac{b-3a}{bc^{2}-d}=\dfrac{2-3(-4)}{2(-3)^{2}-4}\\\\=\dfrac{2+12}{18-4}\\\\

\dfrac{b-3a}{bc^{2}-d}=\dfrac{14}{14}=1

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

\dfrac{b-3a}{bc^{2}-d}=1

6 0
3 years ago
The Coopers own two vehicles, a mini-van and sedan. The following functions represent the resale value of both cars, in thousand
velikii [3]

Answer:

h(x) = 57(0.8)^x

Step-by-step explanation:

Given

f(x) = 32(0.8)^x

g(x) = 25(0.8)^x

Required

A function that represents the total resale value of the two vehicles

To do this, we simply add up the functions

h(x) = f(x) + g(x)

h(x) = 32(0.8)^x + 25(0.8)^x

Factorize

h(x) = (32 + 25)(0.8)^x

h(x) = 57(0.8)^x

6 0
3 years ago
What is the value of the expression below when w =9 and x=2<br><br> w – 4x
Vera_Pavlovna [14]

Answer:

1

Step-by-step explanation:

9 - 4 x 2

4 x 2 = 8

9 - 8 = 1

8 0
3 years ago
Read 2 more answers
Rachel rents three DVDs from Watchflicks and two DVDs from Bluechest. The probability that a DVD is faulty is 4% for Watchflicks
Vera_Pavlovna [14]

Answer:

0.017

Step-by-step explanation:

5 0
3 years ago
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