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Alborosie
4 years ago
15

How many moles are in 40.0 grams of water?​

Mathematics
1 answer:
Tresset [83]4 years ago
7 0

2.22 moles

Hope this helps :)

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A rectangle has sides that are 1 cm and 2 cm long. If it is increased by a scale factor of 9, what will be the new area of the r
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Answer:

162cm^2

Step-by-step explanation:

The original sides are 1 and 2 centimeters, Increasing both by a factor of 9 results in 9 and 18 centimeters. We multiple to find the area is 162 square centimeters,

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Write the equation of the line in fully simplified slope-intercept form.
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Solve the quadratic function by completing the square. What are the missing pieces in the steps?
Sergeu [11.5K]

Answer:

x = -2; or x = -8

Step-by-step explanation:

Solve the quadratic function by completing the square. What are the missing pieces in the steps? -32=2(x^2+10)

-32+___=2(x2+10x+25)

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9=(x+5)^2

+-___=x+5

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Solution:

From the first line:

-32+___=2(x2+10x+25)

Also, in the second line:

18=2(x+5)^2

Let the missing piece on line 2 be a, hence:

x² + 10x + 25 = (x + 5)² and -32 + a = 18

a = 18 + 32 = 50

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Dividing through by 2:

18 / 2= [2(x+5)² / 2]

9 = (x + 5)²

Taking square root of both sides:

√9 = √(x + 5)²

± 3 = x+5

Simplifying the equation to get:

3 = x + 5; -3 = x + 5

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Lostsunrise [7]

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Step-by-step explanation:

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What’s the answer need in 20 minutes
ikadub [295]
G(x)=-6

Explanation

G(1)=-1-5

G(1)=-6
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3 years ago
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