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Kisachek [45]
3 years ago
9

Find the total area the regular pyramid. T. A. =

Mathematics
2 answers:
drek231 [11]3 years ago
8 0

Answer:

T.A = 16\sqrt{3}

lorasvet [3.4K]3 years ago
5 0

Answer:

T.A. = 16√3 units²

Step-by-step explanation:

∵ The total area = the area of the four faces

∵ The four faces are equilateral triangles with side length 4

∵ Area of the equilateral Δ = 1/4 s² √3

∴ T.A. = 4 × 1/4 × 4² × √3 = 16√3 units²

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A school play sells adult and child tickets. On Friday they sold 55 child tickets and 20 adult tickets for $200. On Saturday the
Anarel [89]

Answer:

$2

Step-by-step explanation:

Let, price of individual child ticket is $x, and price of individual adult ticket is $y.

Now, on Friday we can write an equation is 55x+20y=200....(1).

and on Saturday we can write an equation is 72x+36y=306.....(2).

so, Equation 1: 55x+20y=200

 

Equation 2: 72x+36y=306

now, we are going to solve both equations.

after solving you will find x=2 and y=4.5

Hence, we can say that the cost of child ticket is $2, and the cost of adult ticket is $4.50.

4 0
3 years ago
Find the solution by graphing the equations pls help
lilavasa [31]

Answer:

graph these
y = 2x + 2
y = 2x - 3

Step-by-step explanation:

2x - y = -2
2x - y = 3

convert to y intercept form
first
2x - y = -2
-y = -2x - 2
y = 2x + 2
second
2x - y = 3
-y = -2x + 3
y = 2x - 3

you are left with
y = 2x + 2
y = 2x - 3
i cannot graph these for you, but i assume you know how, there is no solution because the lines are parallel

4 0
2 years ago
A student factors 15c2 + c – 28 to the following.
Mamont248 [21]

Answer:

C. The expression is not equivalent, but it is completely factored.

7 0
3 years ago
Read 2 more answers
Clark made four of his truck payments late and was fined four late fees. The total change to his savings from late fees was-$-44
Dafna1 [17]

Answer:

11

Step-by-step explanation:

44 dollars after 4 days so 44 divided by 4 = 11

6 0
3 years ago
Read 2 more answers
Find all of the zeros of the function and write the polynomial as the product of linear factors.
Tomtit [17]

Answer:

(x+6i)(x-6i)(x+1)

So the zeroes are 6i, -6i, -1

Step-by-step explanation:

Factor by grouping

h(x) = x^2(x+1) + 36(x+1)

h(x) = (x^2+36)(x+1)

3 0
3 years ago
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