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3 years ago

PLEASE HELP ME ‼️

1 answer:

4 0

We know that the value of x, the independent variable, is 0 at the x-intercept. In this case, time is the independent variable as distance traveled is dependent on it. Therefore, when time is equals to 0, we find that the distance was 50 miles. If the distance is being measured from the bridge, and the train is at the station at time = 0, then the train station is 50 miles from the bridge.

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Suppose a geometric sequence has a common ratio of 5. What is the next term after 9?

creativ13 [48]

Answer:

Step-by-step explanation:

$a_{n+1}=a_n\cdot r$

So, if the common ratio is 5 the next term is always 5 times the previous term.

8 0

2 years ago

A student says that the graph of the equation y = 3(x + 8) is the same as the graph of y = 3x, only translated upwards by 8 unit

Wittaler [7]

Given:

A student says that the graph of the equation $y = 3(x + 8)$ is the same as the graph of $y = 3x$ , only translated upwards by 8 units.

To find:

Whether the student is correct or not.

Solution:

Initial equation is

$y=3x$

$f(x)=3x$

Equation of after transformation is

$y=3(x+8)$

$g(x)=3(x+8)$

Now,

$g(x)=f(x+8)$ ...(i)

The translation is defined as

$g(x)=f(x+a)+b$ ...(ii)

Where, a is horizontal shift and b is vertical shift.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

From (i) and (ii), we get

$a=8\text{ and }b=0$

Therefore, the graph of $y=3x$ translated left by 8 units. Hence, the student is wrong.

8 0

2 years ago

Write the inverse function for the function, ƒ(x) = 1/2x + 4. Then, find the value of ƒ -1(4). Type your answers in the box

anastassius [24]

F(x) = (1/2)x + 4
Plug y in for f(x).
y = (1/2)x + 4
Swap x and y.
x = (1/2)y + 4
Solve the equation for y =.
Subtract 4 from both sides.
x - 4 = (1/2)y
Multiply each term 2.
2x - 8 = y
Plug f^-1(x) in for y.
f^-1(x) = 2x - 8

f^-1(4) = 2(4) - 8
f^-1(4) = 0

3 0

3 years ago

What is the solution of x - 9/ 7x + 2 < 0

vampirchik [111]

Answer:

x>7

Step-by-step explanation:

6 0

2 years ago

5^2xyz×5^4x^3y^-10z^-12

Leviafan [203]

There is so solution to this problem

5 0

3 years ago