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Levart [38]
4 years ago
7

Which expression represents the total surface area, in square centimeters, of the square pyramid?

Mathematics
1 answer:
Dafna1 [17]4 years ago
7 0

Answer:

(8.2) (8.2) + 4 (one-half (8.2) (11.1))

Step-by-step explanation:

Formula for calculating the surface area of a square based pyramid is expressed as:

Surface area = A + 1/2ps

A is the base area

P is the perimeter of base

S is the slant side.

Since the base of the pyramid is a square, then

Base Area A = L²

A = 8.2²

A = 67.24cm²

Perimeter of square = 4L = 4(8.2)

= 32.8cm

Slant Height = 11.1cm

On substituting the gotten value:

Surface area = 8.2(8.2) + 1/2 [4(8.2 (11.1)]

Based on the solution above, the expression below is correct.

S =(8.2) (8.2) + 4 (one-half (8.2) (11.1))

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3 0
3 years ago
Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic
lidiya [134]

Answer: A

Step-by-step explanation:

The first thing we need to do is to make sure our equation is in standard form. The given equation is not in standard form.

3x²-2x=0

Now that the equation is in standard form, we can find our A, B, C to see which quadratic equation is correct.

A=3

B=-2

C=0

We can automatically eliminate D because the first value is -3 when it is supposed to be -(-2). Also, the denominator is supposed to be 2a. We know that A=3. The denominator should be 2(3), not 2(-2).

Next, we can eliminate B and C. For the 4ac, we know it has to be 4(3)(0) because A=3 and C=0. B and C have given 4(3)(2) and 4(3)(1), respectively. This does not match A=3 and C=0.

Therefore, A is the correct answer.

4 0
3 years ago
Mr.jones is planning to plant grass and place a fence in a small area for his dog the rectangular dimensions are 12 x15 feet the
cestrela7 [59]

Answer:


Step-by-step explanation:


5 0
4 years ago
Read 2 more answers
16p=208<br><br> Plz answer and I'll give you brainliest.
Leno4ka [110]

Answer:

p = 13

Step-by-step explanation:

Step 1: Write equation

16p = 208

Step 2: Solve for <em>p</em>

  1. Divide both sides by 16: p = 13

Step 3: Check

<em>Plug in p to verify it's a solution.</em>

16(13) = 208

208 = 208

8 0
4 years ago
Read 2 more answers
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