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Andreas93 [3]
3 years ago
13

Are the two triangles similar? How do you know?

Mathematics
1 answer:
Lady_Fox [76]3 years ago
7 0

Answer:

Yes the triangles are similar.

if you look at Angle C it's 60° and F is also 60°

60 + 67 is 127

127 + 53 is 180° which is the amount a triangle is. (assuming that E is 67°)

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How many grams of NH3 are required to produce 4.65 g of HF
nignag [31]

1.326 grams of NH3 are required to produce 4.65 g of HF.

Step-by-step explanation:

Balanced chemical reaction is written first to know the number of moles taking part in original reaction.

NH3 +3 F2 ⇒3 HF  +  NF3

Given:

mass of HF = 4.65

First the number of moles of HF in 4.65 grams is calculated by using the formula:

number of moles (n) = \frac{mass}{atomic mass of 1 mole}

atomic mass of HF = 20 grams/mole

putting the values in the above equation number of moles can be found.

n = \frac{4.65}{20}

  = 0.235 moles of HF are given.

From the equation it can be said that:

1 mole of NH3 reacts to form 3 moles of HF

so, x moles of NH3 would react to form 0.235 moles of HF

\frac{3}{1} = \frac{0.235}{x}

3x = 0.235

x = \frac{0.235}{3}

x = 0.078 moles of NH3 is required.

The moles are converted to mass by applying the formula:

mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)

        putting the values in the formula

mass = 17 X 0.078

mass = 1.326 grams

8 0
3 years ago
How much of each ingredients would you need to make 100 quarts of punch
seraphim [82]

Answer:

20 quarts of each ingredient, i'm assuming because lack of details.

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Elina [12.6K]
X is greater than or equal to 67

1000/15 =66.6 =67
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If 3(x -4) = 12, then x = 24
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Answer:

Step-by-step explanation:

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Find the missing side of the triangle
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Answer:

x = 15

Step-by-step explanation:

Pytago: a^2 + b^2 = c^2

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2 years ago
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