3 years ago

What are the correct answers ??

Mathematics

2 answers:

Tatiana [17]3 years ago

7 0

The second and third one for a and the forth one for b

Afina-wow [57]3 years ago

6 0

2 and 3 for A
4 for B

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Find m such that parabola p is completely above the x axis p↔y = mx^2 + 2x + 1

nataly862011 [7]

Answer:

M=-2x+y-1 / x2

Step-by-step explanation:

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2 years ago

A child throws a ball up in the air to a height of 3.5 m and catches it at the same point from which he threw it. The ball is in

dimaraw [331]

$S = 3,5 + 3,5 = 7 m \\ V = \frac{\triangle S}{\triangle T} = \frac{7}{1,7} \approx 4,12 \frac{m}{s}$

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3 years ago

Mumz [18]

Answer:

Perpendicular, 1

Step-by-step explanation:

Parallel means the same slope

Perpendicular is the reciprocal and opposite sign

6 0

2 years ago

(2a^2b + 3ab^2 - b^3) - (4b^3 - 3ab^2 -6a^2b)

skelet666 [1.2K]

Hi there!

~

$(2a^2b+3ab^2-b^3)-(4b^3-3ab^2-6a^2b)$

Distribute the Negative Sign:

$= 2a^2 b + 3ab^2 - b^3 + -1(4b^3 - 3ab^2 - 6a^2b)\\= 2a^2 b + 3ab^2 + - b^3 + -1 (4b^3) + -1 (-3ab^2) + -1 (-6a^2b)\\= 2a^2 b + 3ab^2 + -b^3 + -4b^3 + 3ab^2 + 6a^2 b$

Combine Like Terms:

$= 2a^2 b + 3ab^2 - b^3 + -4ab^3 + 3ab^2 + 6a^2 b\\= (2a^2 b + 6a^2 b) + ( 3ab^2 + 3ab^2) + (-b^3 + -4b^3) \\= 8a^2 b + 6ab^2 + -5b^3$

Answer : $8a^2 b + 6ab^2 + -5b^3$

Hope this helped you!

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3 years ago

Which expression is equivalent to 3(7x – 5)?

Mamont248 [21]

Answer:

21x - 15

Step-by-step explanation:

if this answer helped u and u liked it, pls mark as brainliest! thx!

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3 years ago