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liq [111]
2 years ago
12

Helllp pls help and don’t comment if u don’t know

Mathematics
2 answers:
k0ka [10]2 years ago
7 0

For the first one Answer:7z^3 −2z+1+2z^2

Step-by-step explanation:

(7z ^3

+ 4z −1)+(2z^2

− 6z +2)

Combine 4z and −6z to get −2z.

7z3  − 2z −1 + 2z2  +2

Add −1 and 2 to get 1.

7z3  − 2z + 1 + 2z2

inna [77]2 years ago
4 0

Answer:

a) 7z³+2z²-2z+1

b)2x²+3x-8

Step-by-step explanation:

a) (7z³+4z-1)+(2z²-6z+2)

   7z³+2z²-2z+1

b) (5x²-2x-1)-(3x²-5x+7)

   5x²-2x-1-3x²+5x-7

   2x²+3x-8

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4 0
3 years ago
Help me and i will give you brainliest and i will give you 100 points.
beks73 [17]

Answer:

  • $18.64

Step-by-step explanation:

<u>Total amount to be paid is the sum of 4 bills:</u>

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2 years ago
(pls fast) A scale drawing of a kitchen is shown below. The scale is 1 : 20.
viktelen [127]

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Step-by-step explanation:

So the room will be 80 inches by 100 inches

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8 0
3 years ago
Read 2 more answers
4 1/2 divided by 2 3/8
Yuki888 [10]
First you make them mixed numbers:
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Then you change ÷ to ×
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Hope this helps!
3 0
3 years ago
Jimmy has a window frame in his house. The window measures to have a width of 36 inches and a height of 48 inches. What is the d
Olenka [21]

Answer:

B.60 inches

Step-by-step explanation:

you know you can consider two triangles because of the diagonal cut. and the distance wound be √(36²+48²)=60 inches

4 0
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