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2 years ago

Please help!!!! I don’t understand how to figure it out

Mathematics

1 answer:

lubasha [3.4K]2 years ago

4 0

Answer:

(sin x)^2*(sec x) is positive in QII

Step-by-step explanation:

(sin x)^2 is always 0 or positive. Here x lies in QII.

sec x is positive when the adjacent side is positive and negative when the adjacent side is negative. In QII the adjacent side is positive.

In summary, (sin x)^2*(sec x) is positive in QII

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Multiply polynomials (x+4)(x+5)

zhannawk [14.2K]

Answer:

$x^{2} +9x+20$

Step-by-step explanation:

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2 years ago

Help plz its confusing

DedPeter [7]

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3 years ago

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Answer:

3x-4y-6x+28y

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Step-by-step explanation:

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3 years ago

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Which graphThe Pythagorean theorem states that the sum of the squares of the legs of a right triangle is equal to the square of

lapo4ka [179]

Because even though 'a' and 'b' are rational, and their squares are
also rational, that doesn't guarantee that the sum of their squares
has a rational square root.

Examples:

1 and 2
Sum of squares = 5
√5 is irrational

2 and 3
Sum of squares = 13
√13 is irrational

4 and 5
Sum of squares is 41
√41 is irrational

'c' is rational only when 'a', 'b', and 'c' form a . . . . . wait for it . . . . .
a 'Pythagorean triple'.

Examples:

3 and 4
Sum of squares is 25
√25 = 5 is rational yay

5 and 12
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8 0

2 years ago

For 3/5=2/3t how do you get t=9/10

lesya [120]

Answer:

Step-by-step explanation:

3/5 = 2/3t......multiply both sides by 3/2...this cancels out the 2/3 on the right side

3/5 * 3/2 = t

9/10 = t

another way to do it is this way...

3/5 = 2/3t......divide both sides by 2/3

(3/5) / (2/3) = t

3/5 * 3/2 = t

9/10 = t

7 0

3 years ago