2 years ago

Find the surface area. 24 in. 40 in. 10 in. 26 in.

Mathematics

1 answer:

gogolik [260]2 years ago

5 0

Answer:

100 i think

Step-by-step explanation:

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Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)? (–4, 0) (–2, 0) (0, 2) (4, –2)

son4ous [18]

f(x) = (x – 4)(x + 2),
x-intercept means that f(x) = 0.

0 = (x-4)(x+2)
(x-4)=0, x= 4, point (4,0)
(x+2)=0, x = -2, point (-2,0)

This graph has 2 x-intercepts: (4,0) and (-2,0).

From given answers we can choose only (-2,0).

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3 years ago

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Find the point on the graph of the given function at which the slope of the tangent line is the given slope.

mezya [45]

Answer:

A ( -2 , 9 )

Step-by-step explanation:

Idea: You find the first derivative of f(x), and then set it equal to the desired slope. You'll find some x. That we will use to find the point.

f'(x) = 3x^2 + 12x + 20

f'(x) = 8

3x^2 + 12x + 20 = 8

3x^2 + 12x + 12 = 0

3 ( x^2 + 4x + 4 ) = 0

3 ( x + 2 )^2 = 0

x + 2 = 0

x = -2

So, the desired point is:

A ( -2, f(-2) ) --> A ( -2 , 9 )

3 0

3 years ago

15.5 round to the nearest tenth

kirill115 [55]

15.5 rounded to the nearest tenth is 15.5

8 0

3 years ago

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If f(x) = v* - 7 and g(x) = -8x – 9, which statement is true?

lana [24]

Answer:

is not

Step-by-step explanation:

3 0

3 years ago

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Helppppppp me please if your good at math let me know willl be greatful

ra1l [238]

The system of equations is
y = 3x - 4
y =(2/3)x + 1

The solution satisfies
3x - 4 = (2/3)x + 1

Answer:
From the graph, obtain
x lies between 2 and 3.
y lies between 2 and 3.

6 0

3 years ago