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aev [14]
3 years ago
11

(x+4y+z)(x-7y) identify the property used in each of the steps

Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0

Answer:

so what are the propertys?

Step-by-step explanation:

horrorfan [7]3 years ago
7 0
Multiply the parentheses then collect like terms
(x+4y+z) (x-7y)

x^2-7xy+4xy-28y^2+xz-7yz

x^2-3xy-28y^2+xz-7yz
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Vikki [24]

Answer:

a) Δx = -35ft

b) Δx = -25ft

c) Kyle traveled 10ft more than John

Step-by-step explanation:

We define a coordinate reference system() in which y = 0 corresponds to the water surface.

a) The initial position of Kyle in our coordinate reference system is:

   x_{o} = 20 ft

   and his final position is:

   x_{f} = -15 ft

   Therefore, he traveled

   Δx = x_{f} - x_{o} = -15 - 20 = -35 ft

b) The initial position of John in our coordinate reference system is:

   x_{o} = 15 ft

   and his final position is:

   x_{f} = -10 ft

   Therefore, he traveled

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c) Then, Kyle traveled 10ft more than John

 

6 0
3 years ago
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liraira [26]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
During a field trip, 60 students are put into equal-sized groups. Describe two ways to interpret 60 ÷ 5 in this problem *
sergeinik [125]

Answer:

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This also shows that students can grouped in equal groups of 12 in 5 places

Step-by-step explanation:

From the question we are told that

60 children in equal sized groups

Generally interpreting 60\div 5 can be mathematically represented as

a)

    x=\frac{60}{5}

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This will give 5 Students each in 12 different equally sized groups

b)

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This also shows that students can grouped in equal groups of 12 in 5 places

6 0
3 years ago
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german

Answer:

I would guess 40, I could be wrong.

Step-by-step explanation:

70-30=40. So it would be 40 units away from eachother.

4 0
3 years ago
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Answer: $244.55

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