2 years ago

Please help see picture

Mathematics

1 answer:

Otrada [13]2 years ago

5 0

Answer:

688 cm²

Explanation:

Area of triangular prism = Base × Height + Length × (perimeter of base)

Here given:

Base: 6 cm

Height: 12 cm

Length: 20 cm

Perimeter of Base: (6 + 12.4 + 12.4) = 30.8 cm

============================================

Surface Area = 6 × 12 + 20 × (30.8) = 688 cm²

You might be interested in

(5x10^7)(6x10^4) in scientific notation

Ratling [72]

Answer:

(5 x 10^7)(6 x 10^4)= 3 x 10^12 is the answer in scientific notation

Step-by-step explanation:

5 0

3 years ago

If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?

arlik [135]

Answer:

Step-by-step explanation:

20/5 = 5/1

so the answer is c

4 0

3 years ago

Read 2 more answers

A pole that is 2.8 m tall casts a shadow that is 1.67 m long. At the same time, a nearby building casts a shadow that is 50.75 m

Veseljchak [2.6K]

Answer:

Explanation:

3.2

1.14

44.75

Cross Mutliply:

44.75

⋅

3.2

1.14

Divide:

143.2

1.14

You get 125.614 rounded to the nearest meter is 126

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

25 points please help me!

lianna [129]

$1.14 1.40 x 0.8=1.12 1.4+ 1.12=1.52 * 0.25 = 1.14

8 0

3 years ago

One number is 8 more than the other. When the larger is divided by the smaller, the quotient is 7/5

Wewaii [24]

Answer:

<h3> The numbers are 20 and 28</h3>

Step-by-step explanation:

x - the other number (the smaller one)

x+8 - 8 more than the other number (the larger number)

$\dfrac{x+8}x=\dfrac75\\\\(x+8)\cdot5=x\cdot7\\\\5x+40=7x\\^{\quad-40\qquad-40}\\{}\quad5x = 7x-40\\^{\quad-7x\quad-7x}\\-2x=-40\\^{\div(-2)\quad\div(-2)}\\{}\ \ x=20\\\\x+8=28$

6 0

3 years ago