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kogti [31]
3 years ago
10

Find the unknown side: V u 2.5 85 26

Mathematics
1 answer:
tia_tia [17]3 years ago
5 0

Answer:

u ≈ 5.7

Step-by-step explanation:

Using the Sine rule in Δ TUV, that is

\frac{t}{sinT} = \frac{u}{sinU} , substitute values

\frac{2.5}{sin26} = \frac{u}{sin85} ( cross- multiply )

u × sin26° = 2.5 × sin85° ( divide both sides by sin26° )

u = \frac{2.5sin85}{sin26} ≈ 5.7 ( to 1 dec. place )

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Solve the equation 2.7 + x = 17
olga55 [171]
Hello!

To solve this equation, we need to isolate the variable on one side of the equation to see what it equals. 

As you can see, 2.7 is added. To get it onto the other side and cancel it from the one side, you will subtract it from both sides as shown below. Note that because of the commutative property, we can switch the places of 2.7 and x.

x+2.7-2.7=17-2.7  (Note that 2.7=2.7 is 0 in this equation.
x=14.3

Our solution is x=14.3

I hope this helped you learn how to solve equations a bit better!
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2 years ago
There is concern that increased industrialization may be increasing the mineral content of river water. Ten years ago, the silic
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Answer:

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b) No, it is not plausible that the silicon content of the water is no greater than it was 10 years ago

Step-by-step explanation:

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Z = 3.02

A) P value = 0.0013 which is less than 0.05 and thus we will reject the null hypothesis

B) There is enough evidence to reject the null hypothesis  

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