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loris [4]
4 years ago
15

An angle is equal to one-third of its complement. Find the angle's measure.

Mathematics
1 answer:
artcher [175]4 years ago
8 0

Let x^\circ be the measure of the angle in question. Its complement has measure (90-x)^\circ. We're told that this angle is congruent to 1/3 of its complement, so that

x^\circ=\dfrac{(90-x)^\circ}3\implies3x^\circ=(90-x)^\circ\implies4x^\circ=90^\circ\implies x=22.5^\circ

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You intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis tes
Gre4nikov [31]

Answer:

The correct order is :

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

Step-by-step explanation:

The correct order of the steps of a hypothesis test is given following

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

These steps are performed in the given sequence to test a hypothesis.

6 0
3 years ago
Line l and line m intersect.<br>Prove: ∡1 ≅ ∡3
ikadub [295]
Line l and line m intersect
2 is supplementary to 3
Angle 1 congruent to angle 3

Hope this helped :)
5 0
2 years ago
Read 2 more answers
Find w and y, will give brainliest for the correct answer
Alex Ar [27]

Answer: w=12, y=6√3

Step-by-step explanation:

Looking at the figure, we can split the triangle into 2 separate triangles. One on the left and one on the left. The triangle on the right is a 30-60-90 triangle. For this triangle, the hypotenuse is 2x in length. This is directly opposite of the right angle. The leg opposite to 30° is x in length. The leg opposite 60° is x√3 in length. Once you know the length of one side, you can plug in x to find the length of the other legs.

In this case, w and y are located on the same 30-60-90 triangle. Normally we would focus on that triangle to find our values, but in this instance, we don't have any values. We have to use the left triangle to find the leg that both triangles share.

The left triangle is a 45-45-90 triangle. For this triangle, the legs opposite of 45° is x in length. The hypotenuse is x√2. Since we know the hypotenuse, we can use it to find x.

x√2=8

x=8/√2

x=5.7 or 6       [Let's use 6 so that it is easier to work with a whole number]

Now that we know x, we can find w and y. Going back to the right triangle, we know the hypotenuse is 2x. We plug in 6 to find the length.

w=2x

w=2(6)

w=12

We know the leg opposite of 60° is x√3. We can plug in x.

y=6√3

7 0
4 years ago
What is the difference in elevation between -92 and 3720
Pie
I think the answer is 381
8 0
3 years ago
X^3+2/3x^4-1/2x^2 integral
Irina-Kira [14]

\frac{2 {x}^{5} }{15}  +  \frac{ {x}^{4} }{4}   -   \frac{ {x}^{3} }{6}  + c

simplified form =

\frac{ {x}^{3}(8 {x}^{2}  + 15x - 10) }{60}  + c

5 0
3 years ago
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