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sashaice [31]
3 years ago
5

How to simplify tan(x)/ cos(x)-sec(x)

Mathematics
1 answer:
Artemon [7]3 years ago
7 0
<span> tan(x)/ cos(x)-sec(x)
tanx/(cosx-1/cosx)
tanx/cos^2x-1)--------------------1-sin^2x=cos^2x
-tanx/sin^2x
-(sinx/cosx)/sin^2x
-1/sinxcosx
multiply 2/2
-2/2sinxcosx-------------sin2x=2sincosx
-2/sin2x------------------1/sinx=cosecx
-2cosec2x</span>
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You want to get new shoes they are 30.56 how much will the shoes be with 8% tax?
Yuliya22 [10]

Answer:

Amount of sales tax ≈ $2.44 dollars;

Price with sales tax ≈ $33 dollars;

Step-by-step explanation:

1. Calculate the 'Amount of sales tax':

Formula:

Amount of sales tax =

Sales tax rate × Price without sales tax

Calculation:

Amount of sales tax =

8% × 30.56 =

8/100 × 30.56 =

8 ÷ 100 × 30.56 =

0.08 × 30.56 =

2.4448 ≈

2.44

(Rounded to a maximum of 2 decimals)

2. Calculate the 'Price with sales tax':

Formula:

Price with sales tax =

Price without sales tax + Amount of sales tax

Calculation:

Price with sales tax =

30.56 + 2.4448 =

33.0048 ≈

33

(Rounded to a maximum of 2 decimals)

7 0
3 years ago
What would be the exponent if you wrote 2,670 in scientific notation? Just write the number for your answer.
just olya [345]

Answer:

2.67 x 10^3

Step-by-step explanation

The exponent is equal to how many numbers are after the decimal point. So, since there are 3 numbers after the decimal point, the exponent would be 3. Hope this helps :)

4 0
3 years ago
Complete the tables to determine if the expressions are equivalent. If the expressions are equivalent, name the properties that
jok3333 [9.3K]
I don’t know how to necessarily complete the tables but i know they are equivalent

1. 3(x-5)
3 (x) = 3x
3 (-5) = -15

that is the distributive property thus it equals

3x - 15

2. 3x - 15

they’re the same

5 0
3 years ago
Nine slices of pizza for seven kids
Dmitrij [34]

Answer:

each child would get 1.29 slices, or 9/7 slices

Step-by-step explanation:

you take the amount of pizza and divide it by the amount of children, which is 9/7

8 0
3 years ago
Read 2 more answers
8qt equals gallon and qt​
joja [24]

Answer:

2 Gallons

Step-by-step explanation:

1 Gallon = 4 quarts

There are 8 quarts, and 8 divided by 4 is 2.

2 Gallons.

5 0
4 years ago
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