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gizmo_the_mogwai [7]
2 years ago
9

Find the Surface Area of the Pyramid. Round to the NEAREST TENTH.

Mathematics
2 answers:
AleksAgata [21]2 years ago
8 0

Answer:

465.75 or 465.8 rounded to the nearest tenth

Step-by-step explanation:

You would multiply 16.2 and 14.5 and divide by 2 to get 117.45. You then multiply by 3 for the 3 sides to get 352.35. Lastly, to find the area of the base you would need to multiply 16.2 and 14 and divide it by two to get 113.4. Add it with the 3 sides and you get 465.75.

lana66690 [7]2 years ago
4 0

Answer:

Step-by-step explanation:

The side triangles are: 352.35

Middle triangle is: 113.4

352.35 + 113.4 = 465.75

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Find each side length,round to the nearest tenth if necessary 11.
vagabundo [1.1K]

We can use a modified form of the Pythagorean Theorem to find the length of  x, also known as side b.

Pythagorean Theorem:

a^2 + b^2 = c^2

We can fill in the values of a^2 and c^2, and then solve for b.

14^2 + b^2 = 25^2

196 + b^2 = 625

Subtract 196 from both sides.

b^2 = 429

√ both sides.

b = 20.7

<h3>The value of x, or b, is equal to 20.7.</h3>
6 0
3 years ago
Solve for x. Enter the solutions from least to greatest.<br> x2 – X – 12 = 0
Artemon [7]

Answer:

x=-3,4

Step-by-step explanation:

Factorise in order to reveal factors.

x^2-x-12=0\\(x-4)(x+3)=0

8 0
3 years ago
A lottery ticket has a grand prize of $31 million. The probability of winning the grand prize is .000000018. Determine the expec
vlabodo [156]

Answer:

$0.558

Step-by-step explanation:

The expected value is the sum of the value of each outcome times the chance that it happens. In this case, there are two outcomes:

  1. Win $31 million
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Then our expected value can be calculated as:

EV=(31,000,000)(0.000000018)+(0)(1-0.000000018)=0.558

5 0
2 years ago
The area of a rectangular wall of a barn is 32 square feet. It’s length is 4 feet longer than the width. Find the length and wid
Gnom [1K]

Answer:

Step-by-step explanation:

Givens

Area = L * w

w = x

l = x  + 4

Area = 32

Solution

32 = x(x + 4)

32 = x^2 + 4x

x^2 + 4x - 32

(x + 8)(x - 4)

Only x - 4 is going to make any sense

x - 4 = 0

x = 4

The width is 4

The length is 4 + 4 = 8

4*8 = 32 which is the area.

6 0
3 years ago
Ralph has a piece of shelving 3 m long. He is going to cut it into 4 equal lengths pieces. how long will each piece be?
marishachu [46]

0.75 or 3/4 m each.

Extra letters: cdvaysoHAHboaihscvia


7 0
2 years ago
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