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borishaifa
11 days ago
15

If f(x)=2x+1f(x)=2x+1f, left parenthesis, x, right parenthesis, equals, 2, x, plus, 1 and g(x)=x^2+7g(x)=x 2 +7g, left parenthes

is, x, right parenthesis, equals, x, squared, plus, 7, which of the following is equal to f(g(x))f(g(x))f, left parenthesis, g, left parenthesis, x, right parenthesis, right parenthesis ?
Mathematics
1 answer:
Inessa [3.9K]11 days ago
5 0

Answer:

The composite function;

f(g(x) = 2x^2 + 15

Step-by-step explanation:

Given f(x) = 2x + 1 and g(x) = x^2 + 7;

we are tasked with calculating f(g(x))

This represents a composite function where we substitute g(x) into f(x)

Consequently, we find

f(g(x)) = 2(x^2 + 7) + 1

f(g(x)) = 2x^2 + 14 + 1

f(g(x)) = 2x^2 + 15

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AnnZ [3877]

Let

s--------> denote the cube's side length

We know that

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V(s)= s^{3}

if the side length s measures 2\ feet

then

s=2\ feet

and thus, the volume is defined as

V(2)= 2^{3}

V(2)= 8\ feet^{3}

This leads us to conclude

the correct option is

D. A cube with side lengths of 2 feet has a volume of 8 cubic feet.

5 0
11 days ago
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iven: C is a point on the perpendicular bisector, l, of AB. Prove: AC = BC Use the drop-down menus to complete the proof. By the
Leona [4166]

Answer:

For a clearer understanding, refer to the attached figure:

Step-by-step breakdown:

1. According to the unique line postulate, only one line segment can be created: BC

This is because a single line can only connect two distinct points.

2. Utilizing the definition of reflection, reflect BC across l.

To identify the line segment reflected over l, we will apply the reflection definition.

3. Based on the reflection definition, C remains as its own image and A represents the image of B.

The reflection definition states that a figure is transformed into a mirror image around a line. Thus, CD serves as the perpendicular bisector of AB, which makes A and B equidistant from D, producing their mirror images.

4. Because reflections maintain length, we find that AC = BC

In a reflection, the figure transforms to create a mirror image, ensuring the lengths remain unchanged.

8 0
1 day ago
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Based on the graph shown to the right, whose phones cost varies directly with the amount of time spent talking?
Inessa [3907]

Answer:

B

Step-by-step explanation:

If two quantities have a direct variation, their graph will originate from the point of intersection at the origin.

Among all graphs, only Nikiya's intersects the origin, thus the answer is B.



8 0
5 days ago
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Minato drove 390 miles. Part of the drive was along local roads, where his average speed was 20 mph, and the rest was along a hi
lawyer [4008]

Answer:

45 millas.

Explicación paso a paso:

Dado que la:

Distancia total recorrida = 390 millas

Tiempo total = 8 horas

Designando la distancia recorrida por la vía local como L

y la distancia recorrida por la carretera como H

Por la vía local,

La Velocidad = distancia/ tiempo

20 = L / T

T = L /20.... (1)

Por la carretera,

Distancia recorrida H = 390 - L

Sea el tiempo = t

La Velocidad = distancia/tiempo

60 = (390 - L)/t

t = ( 390 - L)/60

Pero el tiempo total = T + t

<pEs decir

8 = L/20 + (390 - L)/60

<pEl MCM en el lado derecho sería 60<p8 = ( 3L + 390 - L )/60<pMultiplicamos en cruz

480 = 2L + 390

<pAgrupamos los términos semejantes

2L = 480 - 390

2L = 90

L = 90/2

L = 45 millas.

<pAsí que la distancia que Minato recorrió por vías locales es de 45 millas

4 0
9 days ago
A bike wheel is 26 inches in diameter. What is the bike wheel's diameter in millimeters (1 inch = 25.4 millimeters)?
zzz [4022]

Answer:

The wheel's diameter in millimeters is 660.4

Step-by-step explanation:

The diameter of the wheel is 26 inches

as given

1 inch equals 25.4 millimeters

Multiplying both sides by 26

26 inches = 26*25.4 millimeters

=>26 inches = 660.4 mm.

Thus, the diameter of the wheel in millimeters is 660.4

3 0
6 days ago
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