Which of the following are identities? Check all that apply. A. cot2x + 1 = csc2x B. tan2x = 1 - sec2x C. sin2x = 1 + cos2x D. sin2x + cos2x = 1

Answers

Answer 1

Answer:
I'll assume those are squares. We know D is an identity:

$\sin^2 x + \cos ^2 x = 1$

Dividing through by $\sin ^2 x$

$1 + \cot^2 x = \csc^2 x$

That's A.

Dividing the original through by $\cos ^2 x$

$\tan^2 x + 1 = \sec^2 x$

Not quite B, wrong sign on tangent.

C has the wrong sign on cosine squared as well.

Identities: A & D

Answer 2

Answer:

Answer: A. Cot^2 x+1 =csc^2 x

& D. Sin^2 x+Cos^2 x=1

explanation:

A P E X approved.

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Seven less than a number divided by three is five

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let that number be x

$7 < (x)/(3) = 5$

The artist realized that she has 49 ounces of yellow left. How many ounces of blue will she need?

Answers

Answer:

Step-by-step explanatioidkn:

Final answer:

The artist will need 49 ounces of blue.

Explanation:

To find out how many ounces of blue the artist will need, we need to determine the ratio of blue to yellow. Since the artist realized she has 49 ounces of yellow left, we can assume she had the same amount of blue before. As stated in the problem, 50% of the flowers are blue, so we can represent this ratio as 1:1. Therefore, the artist will need 49 ounces of blue.

Learn more about Ratios in Mathematics here:

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Pls helppppp !!!!!!!!!!!!!

Answers

What do you need help with

What is 4.3 / 10 in the answer

Answers

0.43 is the answer to your question

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Halle has two ribbons. The blue ribbon is 58 cm. The green ribbon is 38 cm longer than the blue ribbon.How long is the green ribbon?

Halle uses 67 cm of the green ribbon to wrap a present.
How much green ribbon is left?

Answers

The green ribbon is 96 cm long and if 67 cm of the green ribbon is used to wrap a present, the amount left is 29 cm

An equation is an expression that shows the relationship between numbers or variables.

Let x represent the length of the green ribbon.

The green ribbon is 38 cm longer than the blue ribbon, hence:

x = 58 cm + 38 cm

x = 96 cm

The green ribbon is 96 cm long.

If 67 cm of the green ribbon to wrap a present, the amount left is:

Amount left = 96 cm - 67 cm = 29 cm

Find out more at: brainly.com/question/21105092

Answer:

a) green ribbon is 96cm long

b) 29cm is left

Step-by-step explanation:

a) length of green ribbon = 58cm + 38cm = 96cm

b) length of green ribbon left = 96cm - 67cm = 29cm

Triangle ABC is congruent to triangle . Which sequence of transformations could have been used to transform triangle ABC to produce triangle ? A. Triangle ABC was translated 10 units right and then reflected across the x-axis. B. Triangle ABC was reflected across the y-axis and then translated 7 units down. C. Triangle ABC was reflected across the x-axis and then translated 9 units right. D. Triangle ABC was translated 7 units down and then 9 units right.

Answers

i think its b Triangle ABC was reflected across the y-axis and then translated 7 units down.

Answer:

Step-by-step explanation:

I took the test!

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For the equations given below, which statement is true?-3x-8=19-3x-2=25A. The equations have the same solution because the second equation can be obtained by subtracting 6 from both sides of the first equation.B. The equations have the same solution because the second equation can be obtained by adding 6 to both sides of the first equation.C. The equations have the same solution because the second equation can be obtained by subtracting 19 from both sides of the first equation.OD. The equations do not have the same solution because the second equation can be obtained by adding 6 to both sides of the first equation.