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2 years ago

What two numbers plus 85 equals 180 ?

Mathematics

1 answer:

belka [17]2 years ago

8 0

Answer:

You could do a number of different pairs of numbers but I would do 90+5+85=180.

Step-by-step explanation:

1. I would subtract 85 from 180

2. Then you would get 95

3. Then you could see how what two numbers equal 95

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Describe a pentagonal prism.

ValentinkaMS [17]

Step-by-step explanation:

A pentagonal prism is a prism having two pentagonal bases and five rectangular sides. It is a heptahedron.

The regular right pentagonal prism is uniform polyhedron . Its dual polyhedron is the pentagonal dipyramid.

The surface area and volume for the right regular pentagonal prism of unit edge length are

S = 5+1/2sqrt(5(5+2sqrt(5)))

(1)

V = 1/4sqrt(5(5+2sqrt(5))).

7 0

2 years ago

Easy points :) <br> 2*2*2+2-1

kipiarov [429]

Answer:

Step-by-step explanation:

2*2=4*2=8+2=10-1=9

7 0

2 years ago

In a right-angled triangle, the hypotenuse is 113 and a leg is 112.

melomori [17]

Answer: 15

Step-by-step explanation: Use the formula: $a^{2}+b^{2}=c^{2}$

Remember $c^{2}$ should always be the hypotenuse or the longest side.

$112^{2}+b^{2}=113^{2}$ ---> evaluate the exponents

$12544+b^{2}=12769$ ----> subtract 12544 to the other side

$b^{2}=225$ ---> take the square root of both sides

$b=15$

7 0

2 years ago

Surface area help plz

lana [24]

Answer:

486 mm

Step-by-step explanation:

solve each side on it's own first

First 2 rectangles: 288 mm all together

2 rectangle: 144 mm

Triangles: 54 mm

Then add rectangles and triangles:

288 mm + 144 mm + 54 mm = 486 mm

8 0

2 years ago

What is the advantage of multiply both sides of the equation by the least common multiple of the denominators in the first step

Olenka [21]

To make the equation easier so that you don't have to use fractions.

8 0

2 years ago