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dimulka [17.4K]
3 years ago
8

Factor the expression: -45x +40 expand the expression: 4w + 9( -6 - 3w)

Mathematics
2 answers:
klasskru [66]3 years ago
6 0

Answer:

Factor the expression

- 45x + 40 \\  =  - 5(9x + 8)

Expand the expression

4w + 9( - 6 - 3w) \\ 4w - 54 - 27w \\ =   - 23w - 54

hope this helps

brainliest plz..

AlekseyPX3 years ago
5 0

Answer:

\large \boxed{\mathrm{view \ explanation}}

Step-by-step explanation:

-45x + 40

Factor out 5 from the expression.

5(-9x) + 5(8)

Take 5 as a common factor.

<u>5(-9x + 8)</u>

4w + 9( -6 - 3w)

Expand brackets.

4w + 9(-6) + 9(-3w)

4w - 54 - 27w

Combine like terms.

4w - 27w - 54

<u>-23w - 54</u>

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2. The height of one square pyramid is 24 m. A similar pyramid has a height of 8 m. The volume of the larger pyramid is 648 m3.
Dmitrij [34]
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Pyramid Volume = (Area of the Base * Height) ÷ 3648 = Base Area * 24 / 3Base Area = 648 * 3 / 24Base Area = 648 / 8Base Area = 81Base Length = 9
a) The Scale Factor between the Small & Large PyramidLength - 3LATERAL Area - 9Volume - 27

Slant Height^2 = 4.5^2 + 24^2Slant Height^2 = <span> <span> 596.25 </span> </span> <span><span>Slant Height^2 = 24.4182308941 </span> </span>
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</span>Large Pyramid Area = 439.5281560938 + 81
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**********************************************************************************c)
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Its base perimeter would be 12.
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Source : http://www.1728.org/volpyrmd.htm

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Answer:

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vfiekz [6]

Answer:

- +=_

914-27=887

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