3 years ago

Right triangle with angles 12,8 and y Pythagorean theorem

Mathematics

1 answer:

igomit [66]3 years ago

4 0

Answer:

Step-by-step explanation:

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In the figure below, lines w and z are parallel. What is the value of x

Mkey [24]

Answer:

x° = 42°

Step-by-step explanation:

x° = 180° - (70° + 68°) = 42°

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3 years ago

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3 years ago

According to an accepted chemistry reference, the

Ivahew [28]

Answer:

14.8%

Step-by-step explanation:

Step 1: Given data

True value for the heat of vaporization of water (ΔH°vap(T)): 540 cal/g

Experimental value for the heat of vaporization of water (ΔH°vap(E)): 620 cal/g

Step 2: Calculate the experimental percent error

To determine the experimental percent error we will use the following expression.

%E = |ΔH°vap(T) - ΔH°vap(E)|/ΔH°vap(T) × 100%

%E = |540 cal/g - 620 cal/g|/540 cal/g × 100%

%E = 14.8%

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3 years ago

Is there another shape with the sum of angles being 180° besides triangle?

luda_lava [24]

There no other figure but can take a property that is linear pair or linear pair axiom

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3 years ago

VERY IMPORTANT!! PLEASE HELPPP :(

Marizza181 [45]

Answer:

Step-by-step explanation:

Sigma notation means that you will add and continue adding using the function given. Furthermore, bottom number i = 1 is your starting point and the top number 3 is where you will stop the summation. So,

Let i = 1:

$4(\frac{1}{2}^{1-1})=4(1)=4$

Let i = 2

$4(\frac{1}{2}^{2-1})=4(\frac{1}{2})=\frac{4}{2}=2$

Let i = 3

$4(\frac{1}{2}^{3-1})= 4((\frac{1}{2})^2 )=4\frac{1}{4}=\frac{4}{4}=1$

And so let's add up our results:

4+2+1=7

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3 years ago