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3 years ago

A counterexample for the expression sec^2x-1=cosx/cscx is 45 degrees true or false

Mathematics

2 answers:

lesantik [10]3 years ago

8 0

Hi there! The answer to this problem is TRUE.

krok68 [10]3 years ago

3 0

Answer:

true

Step-by-step explanation:

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When your income is more than your expenses, you have _____.

blagie [28]

<span>When your income is more than your expenses, y</span>ou have surplus

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3 years ago

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C x 34 = <br><br> Show Your work

Brut [27]

Answer:

C x 34 or 34c

Step-by-step explanation:

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saveliy_v [14]

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Helene spends 3%of her budget on transportation expenses. Enter this percent as a

Vesnalui [34]

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8 0

3 years ago

Giovanni purchased 25tickets to an airshow. the cost of an adult's ticket is $14 and the child's ticket is $8. if the total cost

Masteriza [31]

Giovanni purchased 20 adult tickets and 5 child's tickets.

Step-by-step explanation:

Let,

x = Adult tickets

y = Child's tickets

According to given statement;

x+y=25 Eqn 1

One adult ticket costs $14 and one child ticket costs $8, therefore,

14x+8y=320 Eqn 2

$Multiplying\ Eqn\ 1\ by\ 8\\8(x+y=25)\\8x+8y=200\ Eqn\ 3\\Subtracting\ Eqn\ 3\ from\ Eqn\ 2\\(14x+8y)-(8x+8y)=320-200\\14x+8y-8x-8y=120\\6x=120\\Dividing\ both\ sides\ by\ 6\\\frac{6x}{6}=\frac{120}{6}\\x=20$

Putting value of x in Eqn 1;

$20+y=25\\y=25-20\\y=5$

Giovanni purchased 20 adult tickets and 5 child's tickets.

Keywords: Linear equations, Addition

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago