Answer:
Logo, no intervalo [0°,360°] as soluções da equação sen2x=–senx . São: . 0°,120° ... k∈Z . S={x∈IR: X=(π\2)+2kπ , k∈Z } . b) arccos(2x²–1)=2arccos(1/2) .
Step-by-step explanation:
i know it
Answer:
(A)Z(-3,-7)
Explanation:
The rotation of a point (x,y) by 180 degrees gives the point (-x,-y).
That is:
If the image point after rotation is (3,7), the coordinates of the pre-image will be:
The correct option is A.
Answer:
The art teacher needs to buy at least 8 packs of 8 brushes.
Step-by-step explanation:
Every pack has 8 brushes. She needs AT LEAST 60 so she cannot have less than 60 brushes but can have more than 60. 8 x 8 =64 so she would have 4 bushes left over. She needed to buy 8 packs so she can have at least 60.
Answer:
No, Mai's reasoning is incorrect
Step-by-step explanation:
They are actually going the same speed because their centimeter per second ratio is the same. this can be found by dividing them both down, divide the slug by three and the snail by 6 and they both end up the same centimeter/second ratio. (1:1)
Sorry idk how to explain it good but do you get it?
Answer:
el 3
Step-by-step explanation:
