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Scorpion4ik [409]
2 years ago
12

If you are good at science pls answer these questions (only 4 questions)

Mathematics
1 answer:
igomit [66]2 years ago
4 0

#19 - amphibians do not produce amniotic eggs. Therefore they must lay their eggs in water so they don't dry out

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Can someone please answer. There is one problem. There's a picture. Thank you!
schepotkina [342]
Sin(12) ≈ 0.208

  cos(x) = 0.208
  cos(x) = sin(12)
cos(78) = sin(12)

  cos(12) ≈ 0.978
  cos(68) ≈ 0.375
cos(102) ≈ -0.208
  cos(78) ≈ 0.208

The answer is D.
4 0
3 years ago
How do you factor the trinomial 3x^2+18x-21?
snow_lady [41]

Answer:

(3)(x+7)(x-1)

Step-by-step explanation:

3x^2+18x-21

Let's start by taking 3 out of the equation.

3(x^2+6x-7)

Now, when we factor, we need to find two numbers that add up to 6 and multiply to -7.

The numbers would be 7 and -1.

So the factored form of this would be:

(3)(x+7)(x-1)

7 0
2 years ago
If the greatest integer function is called the floor function because it rounds any number down to the nearest integer, what wou
Phantasy [73]
Ceiling Function is the least integer that is greater than or equal to x.
5 0
3 years ago
Read 2 more answers
need explanation on answer: Cameron makes a quilt design using four congruent triangles as shown below. 4 connecting congruent t
AysviL [449]

Answer:

its 64cm

Step-by-step explanation:

7 0
3 years ago
Tessa is training for a marathon she runs 13 km a day for 3 days
creativ13 [48]

nice

i think there's supposed to be more to the problem lol

4 0
2 years ago
Read 3 more answers
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