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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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kolbaska11 [484]
To find the l.a., you multiply the perimeter of the base (the hexagon) by the height. 
l.a. = 60 x 12

surface area is harder :(
you have to find the apothem and all that jazz. sorry i can't help more, good luck!

3 0
3 years ago
simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2. 2 square root of 8 8 square root
Alex787 [66]

<u>Answer</u>

8√2


<u>Explanation</u>

Simply: 4√2 + 7√2 - 3√2

Let √2 = x

4√2 + 7√2 - 3√2 = 4x + 7x - 3x

                             = 11x - 3x

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Substituting x with √2

4√2 + 7√2 - 3√2 = 8√2

4 0
3 years ago
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Setler [38]

Answer: 8 dollar for each ticket

Step-by-step explanation:

8 0
3 years ago
HELP!!! Any formula for volume uses three ______ measures.
umka21 [38]

Answer:

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Step-by-step explanation:

Complimentary measures

4 0
3 years ago
What would you multipy and to which equation to start solving by using the elimination method? Then would you add or subtract th
tester [92]

Answer:

multiply the first equation by -2, then add them

Step-by-step explanation:

7x+4y=-4         *-2 7x+4y=-4 *-2 = -14x-8y=8

5x+8y=28

-14x-8y=8                       x=-4, y=6

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x=-4

7(-4)+4y=-4

-28+4y=-4

4y=24

y=6

8 0
3 years ago
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