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4 years ago

Cot(45-A)=tan2A+ sec2A

Mathematics

1 answer:

tekilochka [14]4 years ago

8 0

Answer:

See picture.

Step-by-step explanation:

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The pairs of numbers below represent the price of different

Ymorist [56]

Answer:

Option C: 2 books for $14, 5 books for $35

Step-by-step explanation:

A proportional relationship between two quantities would always have a constant of proportionality. Thus,

Constant of proportionality, k = y/x

In this case,

x = quantity of books

y = price

Let's see which pair will have a constant of proportionality:

Option A: 4 books for $24,8 books for $40

24/4 = 6;

40/8 = 5.

No constant of proportionality.

Option B: 5 books for $25, 6 books for $36

25/5 = 5

36/6 = 6

No constant of proportionality.

Option C: 2 books for $14, 5 books for $35

14/2 = 7

35/5 = 7

Constant of proportionality, k = 7.

This pair represents a proportional relationship.

Option D: 3 books for $15, 7 books for $28

15/3 = 5

28/7 = 4

No constant of proportionality.

4 0

3 years ago

Please help!!! I’ll mark you as brainliest!!!

Sedaia [141]

Ok I’ll break this down so it’s easier to understand:

So you start of with $80

The first step is to find 20% off

An easy way to find 20% is to divide it by 5.

80/5= 16

And since it’s 20% OFF we subtract 16 from 80

80-16= 64

Next we need to do the coupon

It is $5 off so

64-5= 59

And finally the rebate which is $2

59-2= 57

Answer:
57

3 0

3 years ago

Read 2 more answers

How many liters are in 120 quarts?<br><br> 1 qt ≈ 0.95 L

Over [174]

Answer:

113.562

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The baseball team is ordering hats for the upcoming season. The hat company

Akimi4 [234]

Each hat cost at least $25.92

3 0

3 years ago

Use the distance formula to find the distance between each pair of points. Round your answers to the nearest hundredths place W

Elodia [21]

Answer:

The answer is

<h2>5.83 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

W (-3,-5) and T (2,-2)

The distance between them is

$|WT| = \sqrt{ ({ - 3 - 2})^{2} + ( { - 5 + 2})^{2} } \\ = \sqrt{ ({ - 5})^{2} + ( { - 3})^{2} } \: \: \: \\ = \sqrt{25 + 9} \\ = \sqrt{34} \: \: \: \: \: \: \: \: \\ = 5.830951$

We have the final answer as

<h3>5.83 units to the nearest hundredth</h3>

Hope this helps you

3 0

3 years ago

Read 2 more answers

Cot(45-A)=tan2A+ sec2A​

Cot(45-A)=tan2A+ sec2A