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Alexandra [31]
2 years ago
7

What is the simplified version of the expression [(5-1)^2+3^2]/(30 / 6)

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
4 0

Answer:

Exact form is \frac{16}{5} +\frac{3^2}{5}

the decimal form is 5

Step-by-step explanation:

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Is the ans i got correct?<br>the total surface area is 33.8cm² <br>​
ElenaW [278]

Given:

A prism with height 5 cm and equilateral triangular base with side 2 cm.

To find:

The total surface area of the prism.

Solution:

Area of an equilateral triangle is:

A_1=\dfrac{\sqrt{3}}{4}a^2

Where, a is the side length.

Putting a=2, we get

A_1=\dfrac{\sqrt{3}}{4}(2)^2

A_1=\dfrac{\sqrt{3}}{4}(4)

A_1=\sqrt{3}

A_1\approx \sqrt{3}

The base and top of the prism are congruent so their area must be equal.

The lateral surface area of the prism is:

LA=Ph

Where, P is the perimeter of the base and h is the height of the prism.

The lateral surface area of the prism is:

A_2=(2+2+2)5

A_2=(6)5

A_2=30

Now, the total surface area is the sum of areas of bases and lateral surface area.

A=2A_1+A_2

A=2(1.73)+30

A=3.46+30

A=33.46

Therefore, the total surface area is 33.46 cm².

8 0
2 years ago
HELP ASAP GIVING BRAINLIST!!!!!!!!!!!!!
Vera_Pavlovna [14]

Answer:

x for the first one is equal to-4

4 0
2 years ago
Please Help Waiting 1 hour Please!!
mezya [45]

Step-by-step explanation:

yes the are similar because of AA Theorem

EAB is similar to ECD

4 0
3 years ago
Which is a better deal: A can of 3 tennis balls for $3 or a box of 10 balls for $9?
Kay [80]

Answer:

a box of 10 balls for $9?

Step-by-step explanation:

because u buy 10 tennis balls for 9 dollars and the first one is not true

becuase u buy 3 balls of tennis with 3 dollars and the last answer is right

becuase you buy 10 balls for 9 that means its 1 dollar less for 10 balls

hope it helps

6 0
2 years ago
The circle shown below has a diameter of 22 centimeters. What is the
skad [1K]
The answer is C. 301 cm2
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3 years ago
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