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padilas [110]
3 years ago
6

Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer:

Angles ∠B and ∠C are complementary, not supplementary.

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40 dogs and parrots in total (dogs + parrots = 40 in total) theres 130 legs, how much dog and parrots are there (need steps)​
charle [14.2K]

Answer: There are 32 dogs and 1 Parrot

Step-by-step explanation: I had a question like this in a math class. What you first do is to recognize that- parrots have 2 legs and dogs have 4. We can do 130/2 = 65 and 130/4= 32.5. Now we know that if there was only one animal, there would be 65 parrots, and 32 dogs- one with half of the legs. Since there is a .5 for the dogs, if we put in one parrot, it would mean that there is exactly 130.

(32 x 4)+(2x1) = 130.  There are 32 dogs and 1 Parrot. I hope this answer is ✅ and helps, i just joined the community and this is the first person I answered. Good Luck!!

4 0
3 years ago
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C added to 45 as a algebraic expression
shepuryov [24]
45 + C
This is simple, don't over think these problems <3

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3 years ago
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PLEASE HELP !!!!!<br>Solve.<br>y +30 &lt; 15<br><br>​
Troyanec [42]

Hello there! y < -15

To solve, isolate y. To do this, subtract 30 from both sides of the equation.

y + 30-30 < 15-30

y < -15

This is your final answer. The statement is saying that y must be less than -15 when you add 30 to it for your final answer to be less than 15.

I hope this was helpful and have a great rest of your day! :)

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Someone plss help I tried and I still can't get it plss help me​
Alenkinab [10]

Answer:

-18 is an integer but not a whole number

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a whole number is only positive numbers and 0 itself while an integer is basically any number that isn't a decimal or a fraction. -18 is an integer, but it can't be a whole number because it is a negative number.

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