MATHEMATICS HIGH SCHOOL

Verify
tanx + cotx = 1/ sinxcosx

Answers

Answer 1
Answer:

\textit{Pythagorean Identities} \n\n sin^2(\theta)+cos^2(\theta)=1 \n\n[-0.35em] \rule{34em}{0.25pt}\n\n tan(x )+cot(x )~~ = ~~\cfrac{1}{sin(x )cos(x)} \n\n[-0.35em] ~\dotfill\n\n tan(x )+cot(x )\implies \cfrac{sin(x)}{cos(x)}+\cfrac{cos(x)}{sin(x)} \n\n\n \cfrac{sin^2(x)+cos^2(x)}{sin(x )cos(x)}\implies \cfrac{1}{sin(x )cos(x)}

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If....1=5 , 2=10, 3=30, then 4=?
Write 3 2/3 as improper fraction
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PLEASE HELP!! The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 195 grams of a radioactive isotope, how much will be left after 6 half-lives?Use the calculator provided and round your answer to the nearest gram.

Circle A and Circle B are congruent circles. Which statement must be true?

Answers

Answer:

There is not enough information given to determine which statement must be true. Additional information about the relationship between the two circles is needed

9d + 2 = 56
The solution is d =

Answers

Answer:6

Step-by-step explanation:9x6=54

54+2=56

Answer:the solution is d=6

Step-by-step explanation:9*6+2=56

Whats the least common factor of 20,44,88

Answers

The least common factor of any group of whole numbers is ' 1 '.

The greatest common factor of those three numbers is  4 .

Using the formula C = 2πr, find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch. A. 88 in. B. 44 in. C. 28 in. D. 56 in.

Answers

the formula given to us relates circumference with radius but we are given diameter instead. good thing we know that diameter is twice the length of radius so if diameter=28, the radius=14. therefore, using our formula, we can find the circumference:
C = 2(pi)(14)
C = 87.96
and this answer is close to 88 so the answer is A

let me know if you have any questions!!!
Hi there! C=πd=π*28=87.96459, 87.96 rounded to the nearest tenth would be 88. Therefore, your answer is A. 88 in

21/7+3/7(3x−5)=−4Drag and drop the statement that shows the solution to the equation into the box.

Answers

i know this is really late but its for people here now (like me) the answer would be x= -3 1/9
21/7 + 3/7(3x - 5) = -4
21/7 + 9/7x - 15/7 = -4.....multiply everything by 7
21 + 9x - 15 = - 28
9x + 6 = -28
9x = -28 - 6
9x = - 34
x = -34/9 or - 3 7/9

Write an equation of the line that passes through the points (3,6) and (4,10) using function notation.A.) f(x) = 4x - 6

B.) f(x) = x + 4

C.) y = x + 4

D.) y = 4x - 6

Answers

Given:
(3,6)
(4,10)

x = 3,  4
y = 6,10

A.) f(x) = 4x - 6
f(3) = 4(3) - 6
f(3) = 12 - 6
f(3) = 6

f(4) = 4(4) - 6
f(4) = 16 - 6
f(4) = 10

The correct choice is A.
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Which shows 9 more than x?A.X +9B.9. xC.X-9D.9x