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Strike441 [17]
2 years ago
5

Review the proof of tan (A-B) =

Mathematics
1 answer:
Yuri [45]2 years ago
7 0

Answer: The expression which must fill in each blank space to complete step 3 is; Choice B; Cos(A)Cos(B).

Which expression must fill in each blank space?

From the task content; It follows that the mathematical evaluation is in a bid to derive the Trigonometric identity for Tan (A-B).

From observation, it follows that the required expression is; cos(A)sin(B). This is because upon division of each term by the expression, the result is as in Step 4.

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ITS FOR A TEST PLS HELP
Artemon [7]
I think it’s 4 pairs cause 4 pants is less than 5 shoes and 8 is bigger than 4
8 0
3 years ago
Read 2 more answers
From the set {80, 19, 11}, use substitution to determine which value of x makes the equation true. 8x = 88 A. none of these B. 1
mel-nik [20]

Answer:

  C.  11

Step-by-step explanation:

Substituting, we have ...

  8{80, 19, 11} ?= 88

  {640, 152, 88} ?= 88

The value from the set that makes the equation true is x = 11.

_____

<em>Alternate methods of solution (other than substitution)</em>

It can be easier to make use of your knowledge of factoring:

  8x = 8·11

  x = 11

Or to make use of your knowledge of numbers (place value):

  8·10 = 80

so x will not be very different from 10.

3 0
3 years ago
Tell whether (5, 1) is a solution of y
Arisa [49]

Answer:

1 because Because the right number will be the Y intercept an in the left number will the X interception

7 0
3 years ago
Find the Surface area AND Volume of the figure. Round to the nearest hundredths.
qwelly [4]

Answer:

SA= 902.88 yd²

V = 1386.24 yd³

Step-by-step explanation:

Surface area

Since the bases are right triangles, you need to find the base of the triangle. Use Pythagorean theorem as you are given the hypotenuse and one leg.

19² = 15.2² + b²

361 = 231.04 + b²

Subtract 231.04 from both sides

b² = 129.96

Root that

b = 11.4

Now that you have the base, find the areas of the triangles and rectangles.

<em>Triangles</em> - (15.2*11.4)1/2 (2)

15.2*11.4 = 173.28

<em>Rectangles </em>- (15.2)(16) = 243.2

(16)(11.4) = 182.4

(16)(19) = 304

Add them all together and the SA equals 902.88 yd²

Volume

V = Bh

V = 1/2(15.2)(11.4)(16)

V = 1/2 (2772.48)

V = 1386.24 yd³

4 0
3 years ago
Question 4
Paladinen [302]

Answer:

4 + 2x = 28; = 12

Step-by-step explanation:

Start with the initial fee which is $4. Then times 2 with your miles for an example: (money with miles)2 x 6(miles) and you should have $12 dollars in total  2 x 4 which equal $8 and 2x2 which equal 4...

2 x 6 = 12

2 x 4 = 8

2 x 2= 4

add all those up and you should get 28..

To check your work do

4 + 2(12) = 28

4 + 24 + 28

Your Welcome!

8 0
3 years ago
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