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Lady bird [3.3K]
3 years ago
14

Question 7 (3 points) Which system is responsible for defending the body against harmful substances? circulatory system muscular

system endocrine system immune system​
Mathematics
2 answers:
Mamont248 [21]3 years ago
3 0

Answer:

immune system

Step-by-step explanation:

it helps fight off bacteria and viruses, which are harmful substances.

Ira Lisetskai [31]3 years ago
3 0

Answer:

the immune system? i can explain if needed

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M3+ 3 m3 + 4 m²<br><br>simplify​
Kipish [7]

Answer:

{m}^{3}  +  {27}^{m}  + 4 {m}^{2}

Step-by-step explanation:

{m}^{3}  +  {3}^{m 3}  + 4 {m}^{2}

{m}^{3}  +  {3}^{m \times 3}  + 4 {m}^{2}

{m}^{3}  +  {3}^{3m}  + 4 {m}^{2}

{3}^{3m}  =  ({3}^{3}  {)}^{m}  =  {27}^{m}

➡️ {m}^{3}  +  {27}^{m}  + 4 {m}^{2}

5 0
2 years ago
Find the product <br> -1/2y(2y^3-8)
blondinia [14]

Answer:

-y^4+4y

Step-by-step explanation:

3 0
3 years ago
mauricio estimates that the first module of the project could be completed in as few as 15 days or could take as many as 25 days
4vir4ik [10]

Answer:

<em>Most likely time, </em>according to PERT (Program evaluation and review technique).

Step-by-step explanation:

PERT is "a statistical tool used in <em>project management" (Program evaluation and review technique (2020), </em>in Wikipedia), and it is commonly used with CPM <em>(Critical Path Method)</em> to manage projects.

Inside PERT, there are different defined times to accomplished an activity in a project, that is:

  • An <em>optimistic time</em> or minimum time required to accomplished an activity, i.e., if everything goes better than normal, the activity is accomplished before expected.
  • A <em>pessimistic time, </em>a time quite the opposite to optimistic time.
  • A <em>most likely time</em>, or a time required to accomplished an activity if everything goes as expected or normally.
  • An <em>expected time</em>, an statistical estimation.

Considering the question, we have that the <em>time</em> when "the first module of the project could be completed":

  • "[...] in as few as 15 days"  is the <em>optimistic time</em>.
  • "[...] or could take as many as 25 days" is the <em>pessimistic time</em>.
  • "[...] but most likely will require 20 days" is the <em>most likely time</em>.

As a result, the <em>20-day estimate</em> is called the <em>most likely time</em> in the context of the PERT/CPM techniques.

3 0
3 years ago
What is the volume of a cylinder with a radius of 5 centimeters and height of 2.5 centimeters?
IRISSAK [1]

Answer:

Step-by-step explanation:

The formula for volume of a cylinder is

V = πr²h    where r is the radius and h is the height.

We are given r = 5 and h = 2.5, plug those values in and simplify...

V = π(5²)(2.5)

       V = π(25)(2.5)

              V = 62.5π

7 0
3 years ago
What is the constant of variation for the inverse variation?
eimsori [14]
Negative two..................
5 0
3 years ago
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