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WARRIOR [948]
2 years ago
15

Write each phrase as a numerical or algebraic expression. 189 subtracted from t

Mathematics
1 answer:
Anton [14]2 years ago
3 0

Answer:

t-189

Step-by-step explanation:

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Emily is 61 years old. Colin is 8 years older than Emily. Dan is 16 years younger than Emily. What is the total of their combine
Arlecino [84]

Answer:

61+69+45= 175 years added together

Step-by-step explanation:

Emily is 61

Colin is 61+8=69

and Dan is 61-16 which is 45, so when you add them together you get 175 years

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The Louvre is an art museum in Paris. A glass square base pyramid sits in front of the entrance to the museum. If the pyramid is
Sveta_85 [38]

Answer:

lateral area = 2320 m²

Step-by-step explanation:

The question wants us to calculate the lateral area of a square base pyramid. The square base pyramid has a side of 40 meters.The height is 21 meters.

Half of the square base is 40/2 =  20 meters . With the height it forms a right angle triangle. The hypotenuse side is the slant height of the pyramid.

Using Pythagoras's theorem

c² = a² + b²

c² = 20² + 21²

c² = 400 + 441

c² = 841

square root both sides

c = √841

c = 29 meters

The slant height of the pyramid is 29 meters.

The pyramid has four sided triangle. The lateral area is 4 multiply by the area of one triangle.

area of triangle = 1/2 × base × height

base = 40 meters

height = 29 meters

area = 1/2 × 40 × 29

area = 580

area of one triangle = 580 m²

Lateral area = 4(580)

lateral area = 2320 m²

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3 years ago
Please solve 25/5(2+3)=
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The answer to this question is 25
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