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Nuetrik [128]
2 years ago
13

Can someone help me on this?

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:

Step-by-step explanation:

We know that cosx = sin(\pi - x)

We can apply it here:

sin(55°) = cosx

cos(\pi - 55°) = cosx

Now we apply the arccos to both sides:

x = \pi - 55° + 2k\pi or x = -\pi - 55° + 2k\pi

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Of the 423 students entering as freshmen at a small liberal arts school, 1 out of 3 will be participating in
Allisa [31]

Answer:

About 141 students would attend.

Step-by-step explanation:

423/3=141

4 0
1 year ago
What is true when the plane is 100 meters away from takeoff? Check all that apply. The given information is the SSS case. The gi
givi [52]

Two triangle are congruent when the shape and size of both the triangle are same. The given information is the SAS case.

To find the form of the case we need to know about the triangle congruence theorem.

<h3>What is triangle congruence theorem?</h3>

Two triangle are congruent when the shape and size of both the triangle are same.

Triangle congruence theorem are-

  • Angle-Side-Angle theorem (AAS)- This theorem states that two triangle is congruent when two angle and one side of the triangle are respectively equal to the two angles and same side of the other triangle.

  • Side-Side-Side theorem (SSS)- When the three sides of the one triangle is equal to the three sides of the other triangle respectively, then the triangle are congruent.

  • Side-Angle-Side theorem (SAS)- Two sides and the included angle of are equal to the two sides and one angle of other triangle respectively.

Given information-

Evelyn is 104 meters from the take off.

The angle of elevation of the plane is 12°.

The plane is 100 meters away from the takeoff point.

The distance is 100 meters and 104 meters. The other two sides , as are same and the angle of elevation is also same for this case (12 degrees).

Thus the two triangle formed which are congruent.

As above discussed the case of SAS exists for the triangle congruence theorem.

Hence the given information is the SAS case.

Learn more about the triangle congruence theorem here;

brainly.com/question/19258025

4 0
2 years ago
Read 2 more answers
A grocer stacks oranges in a four-sided pyramid that is 7 layers high. How many oranges are in the pile?
gayaneshka [121]
Short Answer D
P(1) = 1(1+1)(2*1 + 1)/6
P(1) = 1(2)(2 +1) / 6
P(1) = 1(2)(3)/6
P(1) = 1

P(2) = 2(2+1)(2*2 + 1) / 6
P(2) = 2(3)(5) / 6
P(2) = 5 So this formula is adding as it goes along. To Find the Total all we need do is use the formula to calculate P(1) to P(7)

P(7) = 7*(7 + 1)(2*7 + 1)/6
P(7) = 7 * 8 * 15 / 6
P(7) = 7 * 4 * 5 
P(7) = 140 <<<< Answer
4 0
3 years ago
Use the reverse tabular method to solve division problem: (x^4+2x^3+2x^2+2x+1)/(x+1)
svetoff [14.1K]

Answer:

x^3 +x^2 +x+1

Step-by-step explanation:

Your welcome!!!!!!!!!!!

3 0
3 years ago
Can you plz help me I don't understand this
Lana71 [14]
Add up all the rainfall amounts and divide by 11
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3 years ago
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