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Vsevolod [243]
3 years ago
11

Question 1. Find the surface area of the square pyramid below.

Mathematics
2 answers:
kicyunya [14]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

(1)

SA = area of square base + area of 4 congruent triangular faces

     = (3.5 × 3.5) + (4 × \frac{1}{2} × 3.5 × 10 )

     = 12.25 + 70

     = 82.25 in²

(2)

SA = area of circular base + area of curved surface

[ area of curved surface = πrs, r is the radius and s the slant height ]

SA = π × 2² + π × 2 × 6 = 4π + 12π = 16π ≈ 50.27 m²

(3)

SA = area of circular base + area of curved surface

[ note diameter = 19, hence r = 9.5 ]

SA = π × 9.5² + π × 9.5 × 17 = 90.25π + 161.5π = 251.75π ≈ 790.90 cm²

Anton [14]3 years ago
5 0
95.0cm is the answer of this


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EM Company produces two types of laptop computer bags. The regular version requires $32 in capital and 4 hours of labor and sell
expeople1 [14]

Answer:

Step-by-step explanation:

Given that EM company produces two types of laptop computer bags.

Let regular version produced be R and deluxe version be D

Total capital required

= 32R+38D\leq 2100

Total labor hours required

=4R+6D\leq 280

Sales revenue = 46R+55D

Solving the two constraints we have

10D \leq 140

D can be atmost 14 and hence R can be 49

Otherwise if D is made 0, R = 65 maximum

If R is made 0, D maximum is 46

Thus corner points are (65,0) (0.,46) or (49,14)

Sales revenue for (65,0) = 2990

(0,46) is 2530

(49,14) is 3024

Maximum when R =14 and D is 49

5 0
3 years ago
Garth estimated the height of the door ti his classroom in meters. what is a reasonable estimate?
chubhunter [2.5K]
2 because 3 meters is labor 6 feet and 2 is above 5'9'' so it's kinda understandable
7 0
3 years ago
0.5s + 1 = 7 + 4.5s<br><br> Show work, and answers please. This is for algebra 1.
ioda
0.5s + 1 = 7 + 4.5s   Subtract 4.5s from both sides
  -4s + 1 = 7              Subtract 1 from both sides
       -4s = 6              Divide both sides by -4
          s = -\frac{6}{4}   Simplify
          s = -\frac{3}{2}
4 0
3 years ago
Read 2 more answers
Ms. Lou rolls out 2 3/5 ft. of dough. If she cuts the dough into sections that are 1/4 of a ft. each, how many sections of dough
Natasha_Volkova [10]

Answer:

10

Step-by-step explanation:

We need to divide 2 3/5 ft by 1/4 ft.

2 3/5 / 1/4 =

= 2 3/5 * 4

= 13/5 * 4

= 52/5

= 10 4/10

Answer: 10

5 0
2 years ago
Can someone please help me with this?
Charra [1.4K]
Im pretty sure its 60
7 0
3 years ago
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