3 years ago

How many hours helppp

Mathematics

1 answer:

Rasek [7]3 years ago

7 0

Answer

17.27 hours

Step-by-step explanation:

lemme know if it's good :)

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In the school band, there are 4 trumpet players and F flute players.The total number of trumpet and flute players is 12. Are the

Pie

There is 8 flute players and yes there is twice. Because in total there are 12 instrument players so you could subtract 4 from 12 it will equal 8 and its twice of trumpet players.

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3 years ago

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A blueprint of Sarah's room and walk-in closet is represented below. Each box on the diagram represents 1 square foot

kogti [31]

Answer:

70 sq ft

Step-by-step explanation:

count the squares.

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3 years ago

Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).

Alona [7]

Answer:

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

Step-by-step explanation:

Given

Shape: Cube

Dimension: (x+7y), (7x-y) and (xy-5).

Required

Determine the volume

The volume is calculated by multiplying the dimensions:

$Volume = (x+7y) * (7x-y) * (xy-5)$

Evaluate the first 2 brackets

$Volume = [x(7x-y)+7y(7x-y)] * (xy-5)$

$Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)$

$Volume = [7x^2-xy+49xy-7y^2] * (xy-5)$

$Volume = [7x^2+48xy-7y^2] * (xy-5)$

Open brackets

$Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2]$

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

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3 years ago

Help me find the perimeter please:)

mariarad [96]

Answer:

79.2 cm

Step-by-step explanation:

Add up all the lengths of all of the sides of the figure:

16.2 + 7.5 + 7.5 + 18 + 18 + 12 = 79.2

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3 years ago

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The sum of negative eighteen and a number is eleven. What is the number?

valentinak56 [21]

Answer:

-18 + x = 11

x = 29

Step-by-step explanation:

To solve this, you can use the formula of a + b = c

$-18 + x = 11\\-18 = 18\\11 + 18 = 29\\x = 29$

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2 years ago

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