What is |3.5| simplified?

Answers

Answer 1

Answer: |3.5| = 3.5

Any negative or positive number will always have an absolute value that is positive.

For example, | -3.5| = 3.5

3.5 can also be expressed a fraction.

3.5 * 2/2 = 7/2

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Can someone please help me with this, marking brainliest and giving 15 points!The distance traveled of a coin dropped from a tall building is modeled by the equation d(t) = 4.9t2 where d equals the distance traveled at time t seconds and t equals the time in seconds. What does the average rate of change of d(t) from t = 3 to t = 6 represent? (2 points)The coin falls down with an average speed of 132.3 meters per second from 3 seconds to 6 seconds.The coin falls down with an average speed of 44.1 meters per second from 3 seconds to 6 seconds.The coin travels an average distance of 132.3 meters from 3 seconds to 6 seconds.The coin travels an average distance of 44.1 meters from 3 seconds to 6 seconds.
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6. You deposit $1500 in an account that pays 5% interest yearly.a. Write an exponential equation describing this situation.

b. How much money do you have after 6 years?

Answers

The answer to B is $1950 because the 5% equal 75 dollars and 75 times 6 equals 450 so 1500 plus 450 equal 1950

Researchers recorded that a group of bacteria grew from 200 to 1,000 in 8 hours. At this rate of growth, how many bacteria will there be in 20 hours from the start of the experiment

Answers

Answer:

11,180

Step-by-step explanation:

The usual assumption for organic growth is that it is exponential. Here, the number increased by a factor of 1000/200 = 5 in 8 hours. For t in hours, a model for population might be ...

b = (initial value)·(growth factor)^(t/(period of growth))

b = 200(5^(t/8))

Using t = 20, the predicted population is ...

b = 200(5^(20/8)) = 200·5^2.5 ≈ 11,180

There might be about 11,180 bacteria in 20 hours.

Evaluate x-(-11) for x = 14.

Answers

Step-by-step explanation:

x-(-11)

= x+11

= 14+11

= 25

The answer for this question is 25

Solve 2cos^2x + cosx − 1 = 0 for x over the interval [0, 2 π ).a.π and π/3
b.π, π/3, and 5π/3
c.1 and 2π/3
d.1, 2π/3, and 4π/3
e.1, π/3, and 5π/3

Answers

the answer is (b) all this value of x satisfy the equation

Answer:

Option B

Step-by-step explanation:

$\pi ,(\pi )/(3), and (5\pi )/(3)$

Xavier is thinking of a number. Nine more than four times the number is the same as fifteen less than twice the number. What is Xavier's number?

Answers

Answer:

x=1

Step-by-step explanation:

9+4x=15-2x

9+6x=15 Add two to both sides

6x=6 divide by 6

x=1

Answer:

-12

Step-by-step explanation:

I set it up as an equation based on the word problem you gave me

2n - 15 = 4n + 9

Combine like terms

-2n = 24

Isolate the variable n

-2n/-2 = 24/-2

n = -12

To check your work replace the n with -12

2(-12) - 15 = 4(-12) + 9

-24 - 15 = -48 + 9

-39 = -39

In an A.P,the sum of first ten terms is -150 and the sum of next 10 terms is -550.Find the A.P

Answers

S10 = -150;
the sum of next 10 terms = S20 - S10 => -550 = S20 + 150 => S20 = -700;
S10 = -150 => 2a1 + 9r = -30;
S20 = -700 => 2a1 + 19r = -70;
Then 10r = -40 => r = -4 , and, 2a1 -36 = -30 => 2a1 = 6 => a1 = 3;

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