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2 years ago

Please answer quickly! ill mark u brainliest!

Mathematics

1 answer:

Ierofanga [76]2 years ago

8 0

Answer:

Step-by-step explanation:

f(x) = 2x - 5

When x = -2,

f(-2) = 2*(-2) - 5 = - 4-5 = (-9)

When x = 0,

f(0) = 2*0 - 5 = -5

When x = 5,

f(5) = 2*5 - 5 = 10 - 5 = 5

x -2 0 5

y -9 -5 5

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Find x so that x, X +2, X'+3 are the first three terms of a geometric sequence. Then find the 5" term of the

velikii [3]

Answer:

The fifth term is -1/4.

Step-by-step explanation:

We know that the first three terms of the geometric sequence is x, x + 2, and x + 3.

So, our first term is x.

Then our second term will be our first term multiplied by the common ratio r. So:

$x+2=xr$

And our third term will be our first term multiplied by the common ratio r twice. Therefore:

$x+3=xr^2$

Solve for x. From the second term, we can divide both sides by x:

$\displaystyle r=\frac{x+2}{x}$

Substitute this into the third equation:

$\displaystyle x+3=x\Big(\frac{x+2}{x}\Big)^2$

Square:

$\displaystyle x+3 = x\Big( \frac{(x+2)^2}{x^2} \Big)$

Simplify:

$\displaystyle x+3=\frac{(x+2)^2}{x}$

We can multiply both sides by x:

$x(x+3)=(x+2)^2$

Expand:

$x^2+3x=x^2+4x+4$

Isolate the x:

$-x=4$

Hence, our first term is:

$x=-4$

Then our common ratio r is:

$\displaystyle r=\frac{(-4)+2}{-4}=\frac{-2}{-4}=\frac{1}{2}$

So, our first term is -4 and our common ratio is 1/2.

Then our sequence will be -4, -2, -1, -1/2, -1/4.

You can verify that the first three terms indeed follow the pattern of x, x + 2, and x + 3.

So, our fifth term is -1/4.

4 0

3 years ago

Plz help I will thank u and mark u as branilyest

IceJOKER [234]

number 9 =al you have to do is one and 7 eighths =9 so your sum will be 10 and 7 eighths.

hope this helps;)

MARK ME BRAINLIEST

YOU PROMISED!

8 0

2 years ago

Read 2 more answers

A standard bathtub holds 60 gallons of water. A full tub drains 12 gallons per minute. Which of the following tables best repres

masya89 [10]

x represents the minutes and y shows how many gallons over that time.

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2 years ago

Please help!!!!! Thank you

marin [14]

Its 872 when the integer goes down

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2 years ago

Round 66,315,254 to the nearest ten-million

Flauer [41]

Answer:

Step-by-step explanation:

66,315,254.....rounded to the nearest 10 million =

70,000,000

4 0

3 years ago