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3 years ago

PLEASE HELP WILL MARK BRAINIEST AND NO LINKS!!!!

Mathematics

1 answer:

Mashutka [201]3 years ago

6 0

Answer:

a. 5 seconds

b. 1 second

Step-by-step explanation:

Plug the values into the equation and solve for t.

$f(t)=-16t^2+400\\f(t)=-16t^2+16$

You might be interested in

5^x+3=300<br>solve for X

d1i1m1o1n [39]

Answer: x=3.537715

Step-by-step explanation:

5x+3=300

5x+3+−3= 300+ −3

5x=297

Step 2: Solve Exponent.

5x=297

x=3.537715

Hope this helps :)

8 0

3 years ago

A box contains 35 gems, of which 10 are real diamonds and 25 are fake diamonds. Gems are randomly taken out of the box, one at a

USPshnik [31]

Answer:

$Probability = 0.504$

Step-by-step explanation:

Given

$Gems= 35$

$Real = 10$

$Fake = 25$

Required

Determine the probability of selecting two fakes

The probability can be represented as thus: $P(Fake\ and\ Fake)$

Using the following probability formula, we have:

$P(Fake\ and\ Fake) = P(Fake) * P(Fake)$

Each probability is calculated by dividing number of fakes by total number of gems:

$P(Fake\ and\ Fake) = \frac{25}{35} * \frac{25-1}{35-1}$

The minus 1 (-1) represent the numbers of fake and total gems left after the first selection

$P(Fake\ and\ Fake) = \frac{25}{35} * \frac{24}{34}$

$P(Fake\ and\ Fake) = \frac{5}{7} * \frac{12}{17}$

$P(Fake\ and\ Fake) = \frac{60}{119}$

$P(Fake\ and\ Fake) = 0.504$

<em>Hence, the required probability is approximately 0.504</em>

7 0

3 years ago

Interpreting the Multiplicity of a Zero:<br>Determine the multiplicity of the roots of the function

olasank [31]

For this case we have the following expression:

$k (x) = x (x + 2) ^ 3 (x + 4) ^ 2 (x-5) ^ 4\\$

The roots are:

$x = -2\\\\x = -4\\\\x = 5\\\\x = 0\\$

For example: For x = 0 we have

$k (0) = 0 (0 + 2) ^ 3 (0 + 4) ^ 2 (0-5) ^ 4\\\\k (0) = 0 (2) ^ 3 (4) ^ 2 (-5) ^ 4\\\\k (0) = 0 (8) (16) (625)\\\\k (0) = 0\\$

so it is shown that $x = 0$ is a root.

By definition, multiplicity represents the number of times a root is repeated in a polynomial, in turn it is given by the degree of the term that contains the root.

Thus:

The multiplicity of 0 is 1

The multiplicity of -2 is 3

The multiplicity of -4 is 2

The multiplicity of 5 is 4

Answer:

The multiplicity of 0 is 1

The multiplicity of -2 is 3

The multiplicity of -4 is 2

The multiplicity of 5 is 4

8 0

3 years ago

Read 2 more answers

Pleaseee help me quicly

leonid [27]

Answer:

Q.4=2x^2

Q.5=6l^2

may be this is helpful.

8 0

2 years ago

Use the information for the question below.

Zielflug [23.3K]

Answer:

The correct option is d. Project B.

Step-by-step explanation:

Note: See the attached excel file for the calculation of the Cumulative Cash Flows of Projects A and B.

Payback period refers to the number of time or period that is needed to recoup the amount of money spent a project. The

payback period rule states that when considering two or more projects, a project with the shortest payback period should be selected.

Payback period can be calculated as follows:

Payback period = Time before full recovery + (Unrecovered cost at start of the time of full recovery / Cash flow during the time of full recovery) ………………. (1)

Using the information in the excel file (in red color), equation (1) can be calculated for Project A and Project B as follows:

Project A payback period = 2 + ($1,000 / $3,000) = 2.33

Project B payback period = 2 + ($3,000 / $10,000) = 2.30

Since the payback period of Project B payback period which is 2.30 is lower than the Project A payback period of 2.33, Project B should be selected.

Therefore, the correct option is d. Project B.

Download xlsx

7 0

3 years ago