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Alona [7]
3 years ago
8

Determine the discriminant of x2 = 4. A. 17 B. 16 C. -15 D. -10

Mathematics
2 answers:
tino4ka555 [31]3 years ago
6 0
The discriminant is b<span>²-4ac
We can rewrite x</span>² = 4 to x<span>² + 0x - 4 = 0
So a = 1, b = 0, c = -4
</span>Δ = 0 - 4 * 1 * -4
Δ = 16
The answer is B
belka [17]3 years ago
4 0
X² = 4

x² - 4 = 0   comparing to  a<span>x² + bx + c = 0,   a = 1, b = 0, c = -4
</span>
Discriminant = b² - 4ac

b² - 4ac = 0<span>² - 4*1*-4 = 0 + 16 = 16

Discriminant = 16.

option B </span>
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Rudiy27
A.) Integers are positive and negative counting numbers. So, in order to find the integer coefficients, round off the coefficients in the equation to the nearest whole number. The function for g(x) is:

g(x) = 3x²+3x

B.) Substitute x=4 to the two functions.

f(x) = 2.912345x²<span>+3.131579x-0.099999
</span>f(4) = 2.912345(4)²+3.131579(4)-0.099999
f(4) = 59.023837

g(x) = 3x²+3x
g(4) = 3(4)²+3(4)
g(4) = 60

C.) The percentage error is equal to:

Percentage error = |g(4) - f(4)|/f(4)  * 100
Percentage error = |60 - 59.023837|/59.023837  * 100
Percentage error = 1.65%

D.) If x is a large number, for example x=10 or x=20, then g(x) would be an overestimate. This is because the value of x is raised to the power of 2. So, as the x increases, the corresponding function would increase exponentially. Even at x=4, g(x) is already an overestimate. What more for larger values of x? That means that the gap from the true answer f(x) would increase.
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Which expression has a value of 15 when p=12
Arturiano [62]

Answer:

Please provide more information like answer choices, or even better a picture!

Step-by-step explanation:

If you'd like to add answer choices, you can simply type them in the comments below.

If you'd like to add a picture, you will have to make a new post.

Very sorry but it's not clear enough!

Hope this helps!

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4 years ago
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Can someone help me out here ??
Vaselesa [24]

Answer:

6.04 inches

Step-by-step explanation:

1 in. = 100 Ft.

604 Ft / 100Ft = 6.04

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3 years ago
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