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Maksim231197 [3]
4 years ago
7

The surface area of a triangular pyramid is 1836 ft2.

Mathematics
1 answer:
Archy [21]4 years ago
3 0
A triangular pyramid has 4 triangular faces. If all 4 have the same area, then one of them has area 1/4 of the surface area, 1836. That gives 459 sq ft as the area of one of the triangular faces.
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Genrish500 [490]
Hopes this helps:

Answer: 2
6 0
3 years ago
The perimeter of a rectangle is 343434 units. Its width is 6.56.56, point, 5 units. Write an equation to determine the length (l
stiv31 [10]

Answer:

Step-by-step explanation:

perimiter=2(Length+Width)

P=2(L+W)

solve for L

distribute

P=2L+2W

minus 2W

P-2W=2L

divide by 2

\frac{P-2W}{2}=L

given that P=34 units and W=6.5 units

\frac{34-2(6.5)}{2}=L

the equation would be L=p2w/2 or L= p/2=w

5 0
3 years ago
What's the cost of mailing a package that weight 3 pounds 5 ounces if the cost is
stira [4]

Answer:

$30.5

Step-by-step explanation:

56 ounces (3 pounds and 8 ounces since 1 pound = 8 ounces) x 0.5 = 28

28 + 2.5 = 30.5

4 0
3 years ago
A new technology for the production of integrated circuits is being mastered. The technology will be rejected if the percentage
max2010maxim [7]

Answer:

5901

Step-by-step explanation:

The margin of error is the critical value times the standard error.

ME = CV × SE

For α = 0.05, the critical value is z = 1.96.

The standard error of a proportion is √(pq/n).  Given p = 0.04, then q = 1−p = 0.96.

The margin of error is 0.5% or 0.005.

Plugging in:

0.005 = 1.96 √(0.04 × 0.96 / n)

n ≈ 5901

8 0
3 years ago
Complete the equation of the line whose slope is –2 and y-intercept is (0.3).
natima [27]

Hi!

Using y = mx + b form, where m is the slope and b is the y-intercept, we get the equation: y = -2x + 0.3

Hope this helps! :D

6 0
2 years ago
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