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BARSIC [14]
2 years ago
6

Simplify: sin^2xcos^2x-cos^2x

Mathematics
1 answer:
shtirl [24]2 years ago
8 0

Answer:

-cos^4(x)

Step-by-step explanation:

Step 1: Use the Pythagorean identity : 1=cos^2(x) + sin^2(x)

1-sin^2(x) = cos^2(x)

-1+sin^2(x) = -cos^2(x)

cos^2(x) (-cos^2(x))

Step 2: Factor out common terms cos^2(x)

cos^2(x) (sin^2(x)-1)

Ans: -cos^4(x)

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The equation 9t = 27.99 models a constant rate situation.
jeka94

The value of 5t will be 15.55

Step-by-step explanation:

Given equation is;

9t = 27.99

As it is stated that the relationship is constant, therefore, we will find the value of t by dividing 27.99 by 9

t=\frac{27.99}{9}\\\\t=3.11

Now, we will put t=3.11 to find 5t.

5t=5(3.11)\\5t=15.55

The value of 5t will be 15.55

Keywords: division, multiplication

Learn more about multiplication at:

  • brainly.com/question/13063819
  • brainly.com/question/13219835

#LearnwithBrainly

3 0
3 years ago
How many two-digit numbers are there in which the tens digit is greater than<br> the ones digit?
Dovator [93]

there are 46 2-digit numbers in which the tens digit is greater than the ones digit.

<h3>How many 2-digit numbers are there in which the tens digit is larger than the ones digit?</h3>

A 2-digit number is written as:

a*10 + b

Where a and b are single-digit numbers.

Tens digit and ones digit refers to place values:

a is the tens digit, and b is the ones digit. The numbers with a larger tens digit than the ones digit are:

98, 97, 96, 95, 94, 93, 92, 91, 90, 87, 86, 85, 84, 83, 82, 81, 80, 76, 75, 75, 74, 73, 72, 71, 70, 65, 64, 63, 62, 61, 60, 54, 53, 52, 51, 50, 43, 42, 41, 40, 32, 31, 30, 21, 20, 10.

We can see that there are 46 numbers in that list, so we conclude that there are 46 2-digit numbers in which the tens digit is greater than the ones digit.

If you want to learn more about place values:

brainly.com/question/12386995

#SPJ1

7 0
1 year ago
Ace Bike Rentals rents bikes for $28 per day Renters can keep the bike for 8 hours Bart’s Bikes rents bikes for $30 per day Rent
yanalaym [24]

Answer:

Bart’s bikes ll  .50

Step-by-step explanation:


4 0
3 years ago
Find the slope of the graph.
professor190 [17]

Answer:

Slope= m = Δy/Δx = (y₂-y₁)/(x₂-x₁) = rise / run  

Step-by-step explanation:

Hope that helps .  Just plug in your values if you are given two points

for example: (3,4) = (x₂,y₂)    (1,2) = (x₁,y₁)  

Just substitute in the equation above

(4-2)/(3-1) = 2/2 =1  

good luck

6 0
2 years ago
A bakery offers a sale price of $3.50 for 4 muffins. What is the price per dozen?
Elena-2011 [213]
A dozen is 12 and since 4 is a multiple of 12, I did 12 divided by 4 which is three. So i did 3.50 multiplied by 3 and the answer is 10.50
5 0
2 years ago
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