3 years ago

Which expression is equivalent? (42x−5y−4z3)−2 A) 256x10y8z6 B) 256 x10y8z6 C) x10y8 256z6 D) y8 256x10z6

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

6 0

The best answer is c

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Y=2x

Shalnov [3]

Step-by-step explanation:

By substitution method

6x+3(2x)=12

6x+6x =12

12x=12

x=1

y=2x

y=2*1

y=2

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2 years ago

orange blossoms have 5 petals and are some of most fragrant flowers. How many petals would there be in a group of 7 flowers.

zhannawk [14.2K]

Answer:35

Step-by-step explanation:7 times 5

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hichkok12 [17]

Answer:

answer

Step-by-step explanation:

h+2 ≥ 10

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3 years ago

You can draw a quadrilateral with no parallel lines and at least one right angle. (1 point) True False

Olegator [25]

Answer:True

Step-by-step explanation:

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3 years ago

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Potassium fluoride is used for frosting glass. calculate the molarity of a solution prepared by dissolving 78.6 g of kf in enoug

melisa1 [442]

<span>There are a number of ways to express concentration of a solution. This includes molarity. Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

Molarity = 78.6 g KF ( 1 mol / 58.1 g ) / .225 L = 6.013 mol / L KF solution</span>

3 0

3 years ago