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ankoles [38]
3 years ago
14

Prove that: (1 + Tan²A) Cos²A = 1​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Step-by-step explanation:

=(1+ sin^2 A/cos^2 A).cos^2 A

=[(cos^2 a+sin^2 a)/cos^2 a].cos^2 A

=[1/cos^2 a] . cos^2 a

=1

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A cereal company is putting 1 of 3 prizes in each box of cereal. The prizes are evenly distributed so the
Fittoniya [83]

Answer:

0.625

Explanation:

The image below was not posted for the but is needed to anser the question.

Further Explanation:

Mohamed carried out 24 trials of a simulation

Therefore, Total frequencies = 24

To get number of frequency greater than 3 we have to use the result in the result in the graph to obtain the estimate. Look at the graph below, when you count the dots that are on number of boxes purchased greater than 3, you will get 15.

Therefore, Number of frequency greater than 3 = 15

P(more than 3 boxes) = 15/24 = 0.625

3 0
3 years ago
Sasha works for the Humane Society and had to buy food for the dogs. She buys 16 1/4 pounds of dog food. She feeds each dog abou
MissTica

Answer:

It’s 26

Step-by-step explanation:

It’s dividing

7 0
3 years ago
An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $2690 and her st
Mrac [35]

Answer:

<h2> 14.7 %</h2>

Step-by-step explanation:

let us total the amount in her portfolio

Company A was worth $2690

Company B was worth $2980.

Total = $5670

when The stock in Company A decreases by 20%  she will have

$2690 *0.8=  $2152

Company A will worth $2152

when The stock in Company B decreases by 10%  she will have

$2980 *0.9=  $2682

Company A will worth  $2682

In all after the decline in are portfolio is $2152+$2682= $4834

the difference for the original amount in her investment is = $5670-$4834

= $836

The total percentage decrease in the investor's stock account

= (836/5670)*100= 0.147*100= 14.7 %

3 0
3 years ago
a chef at a steakhouse has 187 1/2 pounds of sirloin steak if each portion is 12 1/2 ounces how many sirloin steak can be served
marissa [1.9K]
So you can find the answer by dividing 187 1/2 by 12 1/2 the answer should be 15. hope this helps.
6 0
3 years ago
1. GRIDDED RESPONSE What is the slope of the line that
Morgarella [4.7K]

Answer:

slope = \frac{5}{12}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, 1) and (x₂, y₂ ) = (10, 6)

m = \frac{6-1}{10+2} = \frac{5}{12}

6 0
3 years ago
Read 2 more answers
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