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3 years ago

What is the surface area of the regular pyramid

Mathematics

1 answer:

Gemiola [76]3 years ago

7 0

The total area is the sum of the area of the base (65 m^2) and six times the area of one of the triangular sides. This area (of one side) is (1/2)(base)(height), or (1/2)(5)(12), so the total area of the sides is 6(1/2)(5)(12) = 180 m^2. Thus, the total area is 65 m^2 + 180 m^2 = 245 m^2.

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Nicanoa keeps the tickets from Ouzt for events he attends the Rachel baseball tickets to basketball taking his collection is 3:5

Arada [10]

Using proportions, it is found that he has 14 more basketball tickets than baseball tickets.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

His proportion of baseball to basketball tickets is of 3:5. He has 21 baseball tickets, hence the amount of basketball tickets is found according to the following<em> rule of three</em>:

3/5 = 21/x

Applying cross multiplication:

3x = 105

x = 105/3

x = 35.

The difference is given by:

35 - 21 = 14.

He has 14 more basketball tickets than baseball tickets.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0

2 years ago

Write the linear system:

notsponge [240]

Answer:

(See explanation for further details).

Step-by-step explanation:

C) The linear system is:

$(-1)^{2} \cdot a + (-1)\cdot b + c = 5$

$c = - 4$

$(4)^{2}\cdot a + (4)\cdot b + c = 0$

After some algebraic handling:

$a - b + c = 5$

$c = -4$

$16\cdot a + 4\cdot b + c = 0$

By direct substitution:

$a - b - 4 = 5$

$16\cdot a + 4\cdot b - 4 = 0$

$a - b = 9$

$4\cdot a + b = 1$

$a = 9 + b$

$4\cdot (9+b)+b = 1$

$36 + 5\cdot b = 1$

$5\cdot b = -35$

$b = -7$

$a = 2$

D) The parameter values are: $a = 2$ , $b = -7$ , $c = -4$

E) The quadratic equation is $y = 2\cdot x^{2} - 7\cdot x -4$

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3 years ago

What do you call it when 50 people stand on a wooden dock

Helen [10]

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3 0

3 years ago

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Find the length of the third side. If necessary, round to the nearest tenth.

schepotkina [342]

Answer:

4.5

Step-by-step explanation:

To find the hypotenuse of a right triangle, we use Pythagorean's Theorem which states that $a^{2}+b^{2} =c^{2}$ . Plugging in the values of the two legs given, we get $2^{2} +4^{2} =c^{2} =20$ . We can take the square root of each side and get that $c=\sqrt{20} =4.5$ .

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2 years ago

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What is equivalent to (3√125)x ?

lubasha [3.4K]

Answer: 15x /5

15x(the symbol between 3 and 125)5

Brainly wouldn't let me use the symbol..

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3 years ago

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