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Alenkinab [10]
3 years ago
11

Cos^2theta -cos^2theta ×sin^2theta =cos^4theta​

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

we should prove this or solve only

sergiy2304 [10]3 years ago
7 0

Step-by-step explanation:

hope it is helpful to you

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The money used in Tajikistan is called the Somoni. The exchange rate is $7 = 22 Somoni. Find how many dollars you would receive
nika2105 [10]

Answer:

B: $21

Step-by-step explanation:

7 0
3 years ago
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Each day, an. Investor deposits twice as much into the bank as she did the day before. Her initial investment is $4
Klio2033 [76]
$4  $8 $16 $32 $64 $128..... 
3 0
3 years ago
Is 24 FL. Oz smaller or greater than 3 cups
user100 [1]
Take 24/8 to find out how may cups are in 24 ounces
so 24/8 = 3 cups

So it is equal to 3 cups not smaller nor greater
6 0
3 years ago
Cynthia Besch wants to buy a rug for a room that is 20 ft wide and 26 ft long. She wants to leave a uniform strip of floor aroun
Radda [10]

Answer:

16 ft by 22 ft

Step-by-step explanation:

The Area of the carpeting she must have = 352 ft²

To solve for this, we have:

Length × Width = Area of a rectangle

352ft² = Length × Width

352ft² = (20 - x) (26 - x)

352 = 520 - 20x - 26x + x²

352 = 520 - 46x + x²

Collect like terms

x² - 46x + 520 - 352

x² - 46x + 168

We factorise

x² - 4x - 42x + 106

(x² - 4x) -(42x + 106)

x(x - 4) -42(x - 4)

(x - 4)(x - 42)

x - 4 = 0, x = 4

x - 42 = 0, x = 42

We choose the least value for x

Hence, x = 4

Length = 20 - 4 = 16ft

Width = 22- 4= 22ft

The dimensions the rug should have is 16ft by 22 ft, meaning 16ft wide and 22ft long

4 0
3 years ago
Help a crackhead out
Natasha2012 [34]
T=5w

T= total cost 
W= weeks 
 
It can't be W= because the question is asking for total cost in dollars, so two options are cancelled out.

Can't be t=5+w because it's 5 per week and if, let's say calculating dollars for 2 weeks, the answer would be t=5+2=7 and that wouldn't be right 
4 0
3 years ago
Read 2 more answers
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