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Ostrovityanka [42]
2 years ago
5

Use a=6 and b=24 to work out the value of these expressions

Mathematics
1 answer:
Reika [66]2 years ago
3 0
A) 30
B) 144
C) 4
D) 900
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1.) How many dessert combinations does Megan have?
Debora [2.8K]

Answer: I think

Step-by-step explanation:

4 different salads, 7 different main courses, and 6 different desserts

6 0
3 years ago
A typical soda can measures 12 centimeters tall and has a volume of 235.5 cubic centimeters. To the nearest whole number, how ma
lubasha [3.4K]

Answer:

  228 cm²

Step-by-step explanation:

The volume of a cylinder of radius r and height h is given by ...

  V = πr²·h

Filling in the given information, we can solve for r:

  235.5 = π·r²·12

  √(235.5/(12π)) = r ≈ 2.49937 . . . . cm

The area of a cylinder is given by ...

  A = 2πr² + 2πrh = 2πr(r +h)

Filling in the radius and height, we can find the area to be ...

  A = 2π·2.49937·(2.49937 +12) ≈ 227.698 . . . . cm²

About 228 cm² of aluminum are required to make a typical soda can.

3 0
3 years ago
Find all n in N that satisfy (2^n)-1 divisible by 9​
zmey [24]

Answer:

u can use the hit and trial method for this

7 0
2 years ago
Need help please and thank you
Inessa [10]
A is correct.
If the two shorter sides squared and added together, equals the longer side squared, then it is a right triangle.
5 0
3 years ago
. A building in the shape of a rectangular prism needs to be painted. Some facts about the building are shown below. The buildin
Softa [21]

Answer:

(2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

Step-by-step explanation:

The lateral faces of the building are the 4 sides of the building consisting:

2 rectangles of 120 ft by 80 ft

Area of the two rectangular faces = (2)(120)(80)

And

2 rectangles of 120 ft by 50 ft

Area of the two rectangular faces = (2)(120)(50)

✔️Total lateral surface area of the building = (2)(120)(80) + (2)(120)(50)

Note: we are asked to find the expression that represents the total surface area that needs to be painted given that there are 60 windows on each lateral face of the building of the shape of a square with side lengths of 5 ft.

Therefore, the total lateral surface area of the building that will be painted = total lateral surface of the building - total area covered by the 60 windows on each face of the building

Surface area covered by 60 windows in the 4 lateral face of the building = (4)(60)(5²)

✅total lateral surface area of the building that will be painted = (2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

6 0
2 years ago
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