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3 years ago

The diagram shows a cuboid.4 cm5 cm9 cmWhat is the surface area of the cuboid?

Mathematics

1 answer:

Salsk061 [2.6K]3 years ago

4 0

Answer:

69cm ^2

Step-by-step explanation:

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Find the slope between the two points. (2, -8) and (-1,1)

ANTONII [103]

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Explanation:

We would use the slope formula for this.

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1-(-8)/-1-2

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3 years ago

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fenix001 [56]

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3 years ago

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Ainat [17]

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3 years ago

Read 2 more answers

Emily practices piano for 2/3 of an hour on Monday and 1/2 hour on Wednesdays. How many hours does Emily spend practicing piano

Sergeu [11.5K]

Answer:

50 minutes

Step-by-step explanation:

Given:

$\bullet \ \ \text{Monday:} \ \dfrac{2}{3} \times \text{Hour}\\\\\bullet \ \text{Wednesday:} \ \dfrac{1}{2} \times \text{Hour}$

Since Emily only practiced on Monday and Wednesday, the sum of time on both days is the time Emily practiced on the piano for a week.

$\implies \text{Monday + Wednesday = Total time practiced on piano for a week}$

Substitute the times in the equation

$\implies (\dfrac{2}{3} \times \text{Hour}) + (\dfrac{1}{2} \times \text{Hour}) = \text{Total time practiced on piano for a week}$

Simplify the equation

$\implies (\dfrac{2}{3} \times 60 \ \text{minutes}) + (\dfrac{1}{2} \times 60 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies (20 \ \text{minutes}) + (30 \ \text{minutes}) = \text{Total time practiced on piano for a week}$

$\implies \boxed{50 \ \text{minutes} = \text{Total time practiced on piano for a week}}$

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2 years ago

The diagram shows a cuboid.4 cm5 cm9 cmWhat is the surface area of the cuboid?​

The diagram shows a cuboid.4 cm5 cm9 cmWhat is the surface area of the cuboid?