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julia-pushkina [17]
3 years ago
10

You’re given three angle measurements of 30°, 70°, and 80°. How many triangles can you construct using these measurements?

Mathematics
2 answers:
GREYUIT [131]3 years ago
6 0
The answer is C. Infinitely many because all measurements added together equals 180 degrees.
r-ruslan [8.4K]3 years ago
3 0
The answer is C. Infinitely many because all measurements added together equals 180 degrees. and you can always move the angles around but always has to be 180
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Hello, can somebody please help me with this word problem? Thanks.
erastovalidia [21]
We are given that this is an ideal gas, and that the volume and presumably the number of moles of gas are constant. We can use Gay-Lussac's Law, which describes volume and pressure. We have that pressure is directly proportional to volume. For a change in a gas, we can write the equation as 
\dfrac{P_i}{T_i} = \dfrac{P_f}{T_f},
where i denotes initial and f denotes final.

We have that T_i=600 \ K, T_f=800 \ K, and P_f=30 \ atm. We need to find P_i. To do so, let's first rearrange Gay-Lussac's equation to solve for P_i.

\dfrac{P_i}{T_i} = \dfrac{P_f}{T_f} \\\\P_iT_f=P_fT_i\\\\P_i= \dfrac{P_fT_i}{T_f}

Now, we plug in our values to get P_i.

P_i= \dfrac{P_fT_i}{T_f}=\dfrac{30\ atm \ 600 \ K}{800 \ K} = 22.5 \ atm.

This seems like a reasonable value, because as temperature goes up, pressure goes up, and an increase in temperature corresponds to an increase in pressure.

Technically, you were given values with only one significant figure, so you can only report the value as 20 \ atm, but this depends on how your instructor usually does these problems!

4 0
3 years ago
Rose's age is 3 times the difference of her brother's age and 6. Rose is 15 years
riadik2000 [5.3K]

Answer:

11

Step-by-step explanation:

Rose age = 3(x-6) = 15

Rose's brothers age = x

3(x-6) = 15

3x - 18 = 15

3x = 15+18

x = 33/3 =11

Rose's brothers age = x =11

I hope im rght!!i

6 0
3 years ago
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Mekhanik [1.2K]
Yes, it is a linear equation.
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3 years ago
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VARVARA [1.3K]

Answer:

42

Step-by-step explanation:

alternate exterior angles are equal. Therefore 32 = y - 10. Solving for y:

y - 10 = 32

y = 32+10

y = 42.

8 0
3 years ago
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brian is driving 324 miles to visit some friends.he wants to get there in 6 hours. How many miles does he need to drive each hou
lesya [120]
54
324 divided by 6 = 54
5 0
3 years ago
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