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2 years ago

Find the area of the regular polygon. Round to the nearest tenth.

Mathematics

2 answers:

Elanso [62]2 years ago

7 0

Answer:

374.123 m^2

Step-by-step explanation:

Hope this helps!!

ladessa [460]2 years ago

4 0

Answer:

374.123 m^2

rounded it would be 374.1 m^2

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Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

There are five different cards numbered 1 through 5. Assume the cards are randomly chosen. If the first card picked was a 2 and

alexandr402 [8]

Answer:

Step-by-step explanation:

3 0

2 years ago

The following data shows the weight, in pounds, of 6 bags:

Zina [86]

Answer:

Step-by-step explanation:

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7 0

3 years ago

Four possibilities have probabilities 0.4, 0.2, 0.2 and 0.2 and values $40, $30, $20, and $10 respectively. The expected value i

LiRa [457]

Answer:

b. $28

Step-by-step explanation:

We have these following probabilities:

0.4 = 40% probability of $40

0.2 = 20% probability of $30

0.2 = 20% probability of $20

0.2 = 20% probability of $10

The expected value is:

We multiply each value by its probability. So

$E = 0.4*40 + 0.2*30 + 0.2*20 + 0.2*10 = 28$

So the correct answer is:

b. $28

3 0

3 years ago

Checking for extraneous solutions

jarptica [38.1K]

There is no restriction on the domain because there is a cube root for all real values positive or negative. So you can solve this as there are no extraneous solutions...

Cube both sides...

2x-4=-8

2x=-4

x=-2

8 0

2 years ago