4 years ago

QUESTION 9

Mathematics

1 answer:

Ratling [72]4 years ago

8 0

The first one is (v+6)(v-6)

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(2x^4 - 6x^2+8) + (-x^4+ 2x^2-12)

Neko [114]

(2x^4 - 6x^2+8) + (-x^4+ 2x^2-12)
=2x^4-6x^2-x^4+2x^2-12
=x^4-4x^2-12

Just watch your signs when opening up the brackets and then collect like terms.

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4 years ago

A hunter shot 7 ducks. The hunter's dog recovered 5/7 of

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There have to be at least 4 ducks recovered

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3 years ago

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Find the distance between two points. ENTER THE NUMBER THAT GOES BENEATH THE RADICAL SYMBOL.

iVinArrow [24]

<h2>The distance between two points is $\sqrt{98}$ or 9.9 units</h2>

Solution:

The distance between two points is given as:

$d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$

From given,

$(x_1, x_2) = (-5, 5)\\\\(x_2, y_2) = (2, -2)$

Substituting the values we get,

$d = \sqrt{(2+5)^2+(-2-5)^2}\\\\d = \sqrt{7^2+(-7)^2}\\\\d = \sqrt{49+49}\\\\d = \sqrt{98}\\\\d = 9.899 \approx 9.9$

Thus the distance between two points is $\sqrt{98}$ or 9.9 units

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3 years ago

A number line going from negative 2 to positive 2 in increments of 1. There are 2 equal spaces between each number. The line con

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3 years ago

Juan lives 100 m away from billy. what is juans average speed if he reaches billys home in 50 seconds

alexandr1967 [171]

Answer:

3 meters per second

Step-by-step explanation:

Average speed = Total distance/ Total time

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