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3 years ago

What is the common ratio? 5, -10, 20, -40, 80 What is the 15th term of the sequence?

Mathematics

1 answer:

KatRina [158]3 years ago

3 0

Step-by-step explanation:

Use the above formula

-5 is the difference between the numbers..

hope you understood..

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Hitting the baseball over the lights

Kisachek [45]

Answer:

Approximately 3.8 seconds

Step-by-step explanation:

H(x)=-16x^2+60x+4

We want to find when the ball hits the ground, or where the zeros are

0 =-16x^2+60x+4

Using the quadratic formula

-b ±sqrt(b^2 -4ac)

---------------------------

-60 ±sqrt(60^2 -4*-16*4)

---------------------------

2(-16)

-60 ±sqrt(3600+256)

---------------------------

-32

-60 ±sqrt(3856)

---------------------------

-32

We want the positive value for time

-60-62.09669879

---------------------------

-32

3.815521837

Approximately 3.8 seconds

3 0

3 years ago

Tiana is preparing for a dance recital. She practices for 25 minutes on Tuesday and 35 minutes on thursday. Tian increased her p

Ymorist [56]

Tina increased 40% time from Tuesday to Thursday

Step-by-step explanation:

The percent increase is given by:

$Percent\ increase = \frac{Increase}{Initial\ Value}*100$

Where

$Increase = Current\ value- initial\ value$

Here given

Increase = 10 minutes

Initial value = 25 minutes

So the percentage increase will be:

$Percent\ increase = \frac{10}{25}*100\\= 0.4*100\\=40\%$

Tina increased 40% time from Tuesday to Thursday

Keywords: Percent, percentage

Learn more about percentage at:

#LearnwithBrainly

3 0

3 years ago

In the 2004 season, Seattle's Lauren Jackson was ranked first in the WNBA for total points and points per game. She scored 634 p

Sonja [21]

Using a system of equations, it is found that she made:

141 free throws.

168 two-point field goals.

53 three-point field goals.

For the system, we have that:

x is the number of free throws made.

y is the number of two-point field goals made.

z is the number of three-point field goals made.

She made 362 shots, hence:

$x + y + z = 362$

She scored 636 points, hence:

$x + 2y + 3z = 636$

Observation: I used 636 as there would not be a solution(number of field goals cannot be a fraction) if 634 was used.

She made 27 more 2-point field goals than free throws, hence:

$y = x + 27$

Then:

$x + y + z = 362$

$x + x + 27 + z = 362$

$2x + z = 335$

$z = 335 - 2x$

$x + 2y + 3z = 636$

$x + 2(x + 27) + 3z = 634$

$3x + 3z = 582$

$x + z = 194$

$z = 194 - x$

Equaling both equations for z, finding x:

$335 - 2x = 194 - x$

$x = 141$

Then, to find y and z:

$y = x + 27 = 141 + 27 = 168$

$z = 194 - x = 194 - 141 = 53$

She made:

141 free throws.

168 two-point field goals.

53 three-point field goals.

You can learn more about system of equations at brainly.com/question/25960609

8 0

3 years ago

Which value is NOT a solution of the inequality -2x + 5<7?

Ivenika [448]

Answer:1

Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

-2*x+5-(7)<0

Step by step solution :

STEP

Pulling out like terms

1.1 Pull out like factors :

-2x - 2 = -2 • (x + 1)

Equation at the end of step

STEP

2.1 Divide both sides by -2

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2 Subtract 1 from both sides

x > -1

Inequality Plot :

2.3 Inequality plot for

-2.000 X - 2.000 > 0

One solution was found :

x > -1

5 0

3 years ago

Read 2 more answers

(X^3-3x^2+5x-3)/ (x-1)

Arte-miy333 [17]

Answer:

x^2-2x+3

Step-by-step explanation:

8 0

3 years ago