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eimsori [14]
3 years ago
9

How to use Cosine to calculate the side of a right triangle?

Mathematics
1 answer:
svetlana [45]3 years ago
8 0

Answer:

Cosine is Adj/Hyp

a simple trick i use when doing these kind of problems is first finding the sides. If you only know the Hypotenuse then you multiply that with the cos(x) or whatever angle it is. If you only know Adjacent then you divide the adjacent with the Cos(x) and you get the answer

Step-by-step explanation:

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17) 10(x + 3) -(-9x - 4) = x-5 +3
navik [9.2K]

Answer:

-2

Step-by-step explanation:

10x+30+9x+4=x-5+3

19x+34=x-2

18x=-36

x=-2

5 0
3 years ago
jasmine sells beaded jewelry. she calculates the price at which she sells the jewelry by adding a percent markup to the amount i
mezya [45]

Answer: x=y+z

Step-by-step explanation: Let x be the variable which is the price. Y is the price it cost. Z is the percent markup for the price. Hope this helps

5 0
3 years ago
data set A is {30, 45, 32, 50, 33, 40, 44, 32}. Data set B is {28, 43, 30, 48, 35, 42, 46, 34}. which statement best compares th
3241004551 [841]

Answer:

the mean in set B is equal to the mean in set A (option C)

Question:

The question is incomplete as the answer choices were not given.Let's consider the following question:

Data set A is {30, 45, 32, 50, 33, 40, 44, 32}. Data set B is {28, 43, 30, 48, 35, 42, 46, 34}. which statement best compares the two data sets?

a) median for set A is equal to the median for set B

b) Range for set A is greater than range for set B 

c) The mean in set B is equal to the mean in set A

Step by step explanation:

We can describe a data set using four ways:

Center, spread, shape and unusual features.

Let's consider the center and spread.

Center: This is the median of the distribution.

Spread: This is the variation of the data set. If the range is wide, the spread is larger and If the range is small, the spread is smaller.

Rearranging the data set:

A = {30, 32, 32, 33, 40, 44, 45, 50}

B = {28, 30, 34, 35, 42, 43, 46, 48}

From the data:

The median for set A = (33+40)/2 = 73/2= 36.5

The median for set B = (35+42)/2 = 77/2= 38.5

Range = highest value - lowest value

The data ranges from 30 to 50 (range = 20) for A 

The data ranges from  28 to 48 (range = 20) for B

Mean for set A = (30+32+32+33+40+4445+50)/8 = 306/8 = 38.25

Mean for set B = (28+30+34+35+42+43+46+48)/8= 306/8 = 38.25

In both data set the mean is equal to 38.25.

Therefore the statement that best compares the two data sets is the mean in set B is equal to the mean in set A (C)

8 0
3 years ago
(20 POINTS AND BRAINLIEST) The rectangles below have the same perimeter
Bezzdna [24]

Answer:

Well it is 16

Step-by-step explanation:

the rectangle has 2 of the same sides for each side, so 3x2+5x2, a square has all sides equal to each other, so 4x4

So Now we do the easy part|
The rectangle that is grey:
3x2 = 6
5x2 = 10
6+10 =16



The orange square:
4x4 = 16
4+4=8
4+4=8
8+8=16

Therefore both are 16, meaning 16 must be the perimeter for both!

8 0
2 years ago
Find the product <br>(2x+y) (3x-7)​
steposvetlana [31]

Now,

(2x + y) (3x - 7)

2x (3x - 7y) + y (3x - 7)

6x^2 - 14xy + 3xy - 7y

6x^2 - 11xy - 7y

This is Right answer...

8 0
3 years ago
Read 2 more answers
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