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4 years ago

3x+3y=-64x-4y=-24Similtaneos equation

Mathematics

1 answer:

pishuonlain [190]4 years ago

6 0

Cancel one variable to solve for one. Multiply the two equation by 4 and 3
12x+12=-24
12x-12y=-72
Then the y variables cancel different sings
24x=-96
Tren divide and you get -4

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Is (a + b) and (a - b)? perfect square trinomials?<br> O True<br> O False

lisabon 2012 [21]

Answer:

False

Step-by-step explanation:

Pos and negs cannot be perfect square trinomials

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3 years ago

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grandymaker [24]

Answer:

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3 years ago

6. An ostrich cannot fly, but it is able to run fast. Suppose an ostrich runs east for 7.95 s and then runs 161 m south, so that

Liula [17]

Answer:

159 m

Step-by-step explanation:

From the information given:

It was stated that if the ostrich ran towards the east direction in 7.95 s, let say the distance from the starting point is O towards the east side E, let called the distance towards the east side to be OE.

Again, the ostrich then runs in the south direction for 161 m, let the distance be OS.

Also, let the magnitude of the resultant displacement between the east direction to the south direction be ES = 226m.

We are to find, the magnitude of the ostrich's eastward component.

i.e. The distance traveled from the center to the east direction within the time frame of 7.95 s.

Using the Pythagoras rule:

ES² = OE² + OS²

226² = OE² + 161²

226² - 161² = OE²

OE² = 226² - 161²

OE² = 51076 - 25921

OE² = 25155

$OE = \sqrt{25155}$

OE = 158.60 m

OE ≅ 159 m

Thus, the magnitude of the ostrich's towards the eastward component. = 159 m.

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3 years ago

Coefficient of x^2 in expansion of (x+2)^5

iVinArrow [24]

The x² term will be C(5,2)x²·2³ = 80x².

The coefficient is 80.

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3 years ago

1. Use the given translation rule to find the image coordinates. Rule: (x, y) –(x - 4, y + 3) A(4,6) →A') and B(-2,3) -→B'().O A

artcher [175]

We have to translate the coordinates using the given rule.

The given rule is (x-4,y+3)

Now we have to translate the point A(4,6) using the given rule.

Then,

A' is (4-4,6+3)=(0,9)

Now the point B(-2,3) is to be transformed.

Then,

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Hence the answer is A'(0,9) and B'(-6,6)

4 0

1 year ago