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Wewaii [24]
2 years ago
9

Simplify the expression -3z(1.8z-2.2).

Mathematics
1 answer:
alexdok [17]2 years ago
5 0

Answer:

- 5.4z {}^{2}  + 6.6z

Step-by-step explanation:

Given:

-3z(1.8z-2.2)

Solution:

Applying Distributive property,we obtain

  • (−3z)(1.8z)+(−3z)(−2.2)

Simplifying using PEMDAS:

  • - 5.4z {}^{2}  + 6.6z

Done!

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T = The time (weeks, months, years)

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An artist can paint 4 paintings in 2 hours. What is the artist’s unit rate?
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3 years ago
2. A record store is going out of business and sold any
liubo4ka [24]

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A)  c +  CD = 20

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7 0
2 years ago
7/8 = ?/48<br> A.13<br> B. 1<br> C. 42<br> D. 6
Ugo [173]

Hi Brainiac


7/8 =?/48

Let's replace the unknown place by x

7/8 = x/48

Cross multiply

(7)(48)= (X)(8)

336 = 8x

Flip it

8x = 336

Divide both sides by 8

8x/8 = 336/8

x= 42

The answer is C



Now if you wanna see if the answer is good just replace 42 in blank space

7/8 = 42/48

Now didivde 7 by 8 and divide 42 by 48

7/8= 0.875

42/48= 0.875


The answer C is correct


I hope that's help:)


If you have questions please let me know :)

4 0
3 years ago
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