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2 years ago

Find the measure of angle A to the nearest degree

Mathematics

1 answer:

erica [24]2 years ago

3 0

Answer:c.-63

Explain:

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Use the unit circle to evaluate the followingHow do I solve this problem?

Ilya [14]

Notice that:

$\cos (\frac{4\pi}{3})=\cos (\pi+\frac{\pi}{3})\text{.}$

Recall that:

$\cos (\pi+x)=-\cos (x)\text{.}$

Therefore:

$\cos (\frac{4\pi}{3})=-\cos (\frac{\pi}{3})=-\frac{1}{2}\text{.}$

Answer:

$cos(\frac{4\pi}{3})=-\frac{1}{2}\text{.}$

6 0

11 months ago

Determine the number of solutions that exist to the equation below 8(j-4)=2(4j-16)

Firdavs [7]

Hello :
8(j-4)=2(4j-16)
2(4j-16)= 2(4(j-4))=8(j-4)
8(j-4)= 8(j-4)....(identity : infinty solutions)

5 0

3 years ago

ILL GIVE YOU BRAINLEST IF RIGHT

DanielleElmas [232]

Answer:

The total length of the pathway now is 1,541 ft

Step-by-step explanation:

To calculate the length of the pathway now, what we need to do is to have a consistency in units.

Thus, we need to convert the 513 yards to ft

Mathematically 1 yard = 3 feet

Thus 513 yards will be = 513 * 3 = 1,539 ft

Thus the total length of the pathway now will be 1539 ft + 2 ft = 1541 ft

3 0

2 years ago

Read 2 more answers

An image of a rectangular pyramid is shown below: A right rectangular pyramid is shown. Part A: A cross section of the rectangul

valentina_108 [34]

Answer:

Part a) Rectangle

Part b) Triangle

Step-by-step explanation:

The picture of the question in the attached figure N 1

Part A) A cross section of the rectangular pyramid is cut with a plane parallel to the base. What is the name of the shape created by the cross section?

we know that

When a geometric plane slices any right pyramid so that the cut is parallel to the plane of the base, the cross section will have the same shape (but not the same size) as the base, So, in the case of a right rectangular pyramid, the cross section is a rectangle

Part b) If a cross section of the rectangular pyramid is cut perpendicular to the base, passing through the top vertex, what would be the shape of the resulting cross section?

we know that

Cross sections perpendicular to the base and through the vertex will be triangles

see the attached figure N 2 to better understand the problem

5 0

3 years ago

25 pints of apple juice are poured into 3/4 pint bottles, how many bottles are filled

Westkost [7]

Answer:

33 1/3

Step-by-step explanation:

25/1 * 4/3 =

100/3 = 33.3... or 33 1/3

6 0

2 years ago