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Rama09 [41]
3 years ago
11

I need the work shown not just the answers please

Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0
1.) To find the surface area, we want to find the area of each side, then add them all up together:
Area of base=lwA=(5)(5)A=25 cm²
Area of triangle=1/2bhA=(1/2)(5)(12.5)A=31.25 cm²
Since the 4 triangles have the same area, we can multiply the area we found by 4 and then add the area of the square:
SA=(4)(31.25) + 25SA=125+25SA=150 cm²

2.) <span>To find the volume use the formula: 

V=(1/3)lwh
V=(1/3)(5)(5)(12.5)
V=104.167 cm^3</span>
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Misha Larkins [42]

Answer:

P'(7,0)Q'(2,1) R'(12,-6)

Step-by-step explanation:

P(3,5)------>P'(3+4,5-5)

P'(7,0)

Q(-2,6)----->Q'(-2+4,6-5)

Q'(2,1)

R(8,-1)------>R'(8+4,-1-5)

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4 years ago
Find the perimeter of a train of 100 equilateral triangles if the triangles are joined side to side. Each side is one inch long.
yarga [219]

Answer:

102

Step-by-step explanation:

Each triangle will have a perimeter of 3. When joined, the outside triangles will have 2 sides showing, or 2 inches. The middle 98 will only have one free side, or one inch. This means that 98*1 + 2*2 = 102

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3 years ago
a retiree invests $1240 for 3.5 years in a savings plan that pays a simple interest of 2.1% per year. How much interest will be
attashe74 [19]

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Step-by-step explanation:

I=Prt

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4 0
3 years ago
Which of the following statements is not true? The product of a negative number and 0 is 0. The quotient of a negative number an
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8 0
3 years ago
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Answer: ( 0, 2 )

Step-by-step explanation:

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For example, let's put (0, 2) to equations.

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3 years ago
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