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LenaWriter [7]
4 years ago
6

Help fast timed plss!!

Mathematics
1 answer:
andreyandreev [35.5K]4 years ago
4 0

Answer:50

Step-by-step explanation:

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The quadratic functions f(x) and g(x) are described as follows:
mihalych1998 [28]

Given:

f(x) and g(x) are two quadratic functions.

f(x)=-8x^2-7

The table of values for the function g(x) is given.

To find:

The statement that best compares the maximum value of the two functions.

Solution:

We have,

f(x)=-8x^2-7

Here, the leading coefficient is -8 which is a negative number. So, the function f(x) represents a downward parabola.

We know that the vertex of a downward parabola is the point of maxima.

The vertex of a quadratic function f(x)=ax^2+bx+c is:

Vertex=\left(\dfrac{-b}{2a},f(-\dfrac{b}{2a})\right)

In the given function, a=-8,b=0,c=-7.

-\dfrac{b}{2a}=-\dfrac{0}{2(-8)}

-\dfrac{b}{2a}=0

Putting x=0 in the given function, we get

f(0)=-8(0)^2-7

f(0)=-7

So, the vertex of the function f(x) is at (0,-7). It means the maximum value of the function f(x) is -7.

From the table of g(x) it is clear that the maximum value of the function g(x) is 6.

Since 6>-7, therefore g(x) has a greater maximum value than f(x).

Hence, the correct option is C.

8 0
3 years ago
Read 2 more answers
I need help please, <br> I need an explanation along with an answer please
AURORKA [14]

its hard to explain but  the answer is

x = - 1/3

3 0
3 years ago
GIVING LOTS OF POINTS!!!!
Orlov [11]

Answer:

80 cubes

Step-by-step explanation:

volume of one small cube = 1 /2 × 1 / 2 × 1 / 2

= 1 / 8cm^3

let x be the number of cubes needed

1 / 8 × x = 10

x = 10 × 8

x = 80 cubes

6 0
3 years ago
Need help with number 2 and 3
IceJOKER [234]

Answer:

Yes, you can square a negative number. In fact, any number at all can be squared, even numbers like pi and 0. This is because to square a number just means to multiply it by itself. ... Note that this is positive because when you multiply two negative numbers you get a positive result.

Step-by-step explanation:

number 2

6 0
3 years ago
What is equivelent to <br> 4d+6+2d
Usimov [2.4K]
4d+6+2d can be reduced to 6d+6

This can also be rewritten as 6(d+1).
7 0
3 years ago
Read 2 more answers
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