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3 years ago

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Which pair are equal trig values? A) tan 45° and sin 45° Eliminate B) sin 40° and sin 50° C) sin 36° and cos 54° D) cos 65° and

sin 65°

1 answer:

ira [324]3 years ago

3 0

Answer:

C

Step-by-step explanation:

note that sin x = cos(90 - x ) ← Cofunction identity

If x = 36 then 90 - x = 90 - 36 = 54

Hence sin 36° = cos 54° → C

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Use the given graph to determine the limit, if it exists. A coordinate graph is shown with a downward sloped line crossing the y

anastassius [24]

Answer: The right hand limit is 4

-------------------------------

Start on the right side of the value x = 2. In other words, start at some value larger than 2, say x = 4. Starting at x = 4, move closer to x = 2. Move as close as you can. The closer x gets to 2, the closer y gets to 4. You'll never actually get to x = 2 or y = 4 because of the hole. However, the right-hand limiting value is 4 assuming you can keep getting closer and closer.

Note: if you approach x = 2 from the left side, you arrive at a different y value So this suggests that overall, the limit at x = 2 doesn't exist. But the right hand limit (RHL) does exist as described above.

7 0

4 years ago

A submarine traveling 200 meters below the surface of the ocean increases its depth by 45 meters. Adam says that the new locatio

My name is Ann [436]

Answer:

The error that Adam could have made is added 45 to the depth of

submarine instead of adding -45

Step-by-step explanation:

* Lets explain how to solve the problem

- A submarine traveling 200 meters below the surface of the ocean

- Increases its depth by 45 meters

- Adam says that the new location of the submarine is -155 meters

- We need to know the error of Adam

∵ We consider the surface of the ocean is the zero level

∵ The submarine is 200 meters below the surface of the ocean

∵ Below means negative

∴ The depth of submarine is -200 meters

∵ It increases the depth by 45 meters

- <em>That means it travels down another 45 meters</em>

∵ Down means negative

∴ The depth of submarine = -200 + (-45) = -245 meters

∴ The depth of submarine is 245 below the surface of the ocean

- Adam could thought that the submarine traveled up for 45 meters

then he add 45 to -200

∵ -200 + 45 = -155 meters

∴ The error that Adam could have made is added 45 to the

depth of submarine instead of adding -45

3 0

4 years ago

Write an expression equal to <br><img src="https://tex.z-dn.net/?f=%20%7B7%7D%5E%7B3%7D%20" id="TexFormula1" title=" {7}^{3} " a

expeople1 [14]

Answer:

7×7×7

Explanation:

${7}^{3} = 7 \times 7 \times 7$

When a number is raised to a power, it means that the number is multiplying itself as many times as the number written as the power.

3 0

3 years ago

A box of peanut-butter crackers was divided evenly among 6 children. Each child got 9 crackers. How many crackers were in the bo

tia_tia [17]

You would just multiply 9x6. This gives you 54

8 0

3 years ago

Read 2 more answers

3 4/5 + 5 3/8 Please help ASAP Please i need the anwser

Hatshy [7]

Answer:

9 7/40

Step-by-step explanation:

3 4/5 + 5 3/8

First we need to get a common denominator of 40

3 4/5 * 8/8 = 3 32/40

5 3/8 *5/5 = 5 15/40

Add the fractions together

3 32/40+ 5 15/40

8 47/40

Rewriting

8 + 40/40 + 7/40

8 + 1+ 7/40

9 7/40

4 0

3 years ago