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Vlada [557]
4 years ago
15

X2+4x+3=0 using quadratic formula

Mathematics
1 answer:
Marina CMI [18]4 years ago
8 0
Hope this helps you! Good luck!

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Multiply out (x-2y)z-2x(x+z)
VladimirAG [237]

Answer:

-xz - 2x²- 2yz

Step-by-step explanation:

Multiply out (x-2y)z-2x(x+z)

(x - 2y)z - 2x( x + z)

Rearrange

z(x - 2y) - 2x(x + z)

Open bracket by multiplying by letters outside bracket

xz - 2yz - 2x² - 2xz

Collect like terms

xz -2xz - 2x² - 2yz

-xz - 2x² - 2yz

I hope this was helpful, Please mark as brainliest.

8 0
3 years ago
Read 2 more answers
A cube-shaped box has a volume of 27 cubic inches. Bethany says each side of the cube measures 9 inches because 9 × 3 = 27. Is B
anastassius [24]

Answer: Bethany is not correct

Step-by-step explanation:

The volume of the box is the product of its three dimensions, length, width, and height. The product of a number of "inches" and a "pure number" (3 has no units given) will not be "cubic inches."

_____

As it happens, the cube-shaped box with a volume of 27 cubic inches will have a height of 3 inches and a side area of 9 square inches. The edge length of the cube is 3 inches, not 9.

7 0
3 years ago
Find the surface area of this rectangular prism. Be sure to include the correct unit in your answer.
seropon [69]
I believe that The answer is 8feet
4 0
3 years ago
Help for all, will mark brainliest!!!!! :)
Nat2105 [25]

Answer:

Number 4: Using Pythagoras Theorem,

\sqrt{30^2+40^2} =50

Number 5:

\sqrt{41^2-40^2}=9

3:

\sqrt{11^2+60^2} =61 It is a right triangle

4:

\sqrt{9^2+37^2} =38.09 Not a right triangle

For the last one:

\sqrt{(\sqrt{20^2+6^2})^2+6^2} =2\sqrt{118}

Rounded down (because the answer needs to be a whole number) is 21

7 0
3 years ago
5 kilograms of coffee are going to be shared equally among 44 people.
liraira [26]

Answer:

A

Step-by-step explanation:

5/44=0.11kg

4 0
2 years ago
Read 2 more answers
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