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3 years ago

Plz help memenememdme

Mathematics

1 answer:

Harrizon [31]3 years ago

4 0

1-d
2-c
3-e
4-b
5-a
It's very simple. Try..

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Find the area of a regular nonagon with a side length of 7 and an apothem of 5

vitfil [10]

A NONA=9, nonagon has 9 sides, so it's perimeter is 7+7+7+7+7+7+7+7+7, or 63, and we know the apothem.

bearing in mind that the area of a regular polygon is
(1/2)ap a = apothem, p = perimeter

so in this case that'd be (1/2)(5)(63).

7 0

3 years ago

a bag contains 5 red marbles,6 green marbles,and 3 blue marbles.if cymra draws a marble ,puts it back and then draws another mar

Ksenya-84 [330]

No of red marbles = 5

Total number of marbles =14

By using probability formula,

P(E)= Number of favorable outcome /
Total number of outcomes

P(E)= 5/14

I hope that was useful ☻

7 0

3 years ago

An eagle is flying around and its velocity vvvv as a function of time tttt is given in the graph below where rightwards is the p

mojhsa [17]

9514 1404 393

Answer:

8 units

Step-by-step explanation:

Displacement is the area under the velocity curve. The area of interest is in the shape of a trapezoid, so we can use the formula ...

A = (1/2)(b1 +b2)h

to find the area.

Here, b1=3, b2=1, h=4, so the area is ...

A = (1/2)(3 +1)(4) = 8

The displacement is 8 units in the time from t=1 to t=4.

7 0

3 years ago

The body of a person who weighs 50 kilograms contains around 2 × 102 grams of sodium chloride. How much sodium chloride is conta

kondaur [170]

The mass of sodium chloride required for 1. 8 × 10^3 people is 3. 6 × 10^5 grams. Option A is the correct answer.

<h3>How do you calculate the mass of sodium chloride required?</h3>

Given that weigh of the person is 50 KG. The mass of the sodium chloride in one person is given below.

$1 \;\rm Person = 2\times 10^2\;\rm g$

The mass of sodium chloride is calculated as given below.

$1.8\times 10^3 \;\rm Person = 2\times 10^2 \times 1.8\times 10^3$

$1.8\times 10^3 \;\rm Person = 3.6\times 10^5\;\rm g$

Hence we can conclude that the mass of sodium chloride required for 1. 8 × 10^3 people is 3. 6 × 10^5 grams. Option A is the correct answer.

To know more about the mass, follow the link given below.

brainly.com/question/15959704.

7 0

2 years ago

Prove that for any positive integer n a field f can have at most a finite number of elements of multiplicative order at most n

miv72 [106K]

Let's assume multiplicative order is infinite. Then $x^k=1, \forall k=1(1)n$ . In the field $F$ the solution of the polynomial $x^k-1=0$ can have at most $k$ distinct solutions. Hence for any $k=1(1)n$ we cannot have infinite roots. And thus the result follows.

3 0

3 years ago