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nikitadnepr [17]
4 years ago
9

Need help..................

Mathematics
1 answer:
abruzzese [7]4 years ago
3 0

Answer:

(4-7x)(4+7x)

Step-by-step explanation:

This is a difference of squares. (16 is the square of 4, 49x^2 is the square of 7x.)

The formula for difference of squares is a^2 - b^2 = (a-b)(a+b)

<u>16 - 49^2 = (4-7x)(4+7x)</u>

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Answer:

1.Triangle is heavier than a square.

2.Circle is lighter than the triangle and square.

3.3 squares won't be balanced between one triangle.

Step-by-step explanation:

Imagine Triangle is 10 and Square is 3

Triangle is heavier.

Imagine Circle is 1

3+3+3=9 also 3 squares

3 squares + 1 circle = 10

as one circle equals 1.

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3 years ago
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lilavasa [31]

Answer:

If f(x)=g(x), the solution is x=-2

Step-by-step explanation:

We are given:

f(x)=3x+3\\g(x)= (-1/2)x-4

We need to find the solution if f(x)=g(x)

Now solving for f(x)=g(x)

f(x)=g(x)\\3x+3=(-\frac{1}{2}x)-4\\3x+3=-\frac{1}{2}x-4\\3x+\frac{1}{2}x=-4-3\\\frac{3x*2+x}{2}=-7\\\frac{6x+x}{2}=-7\\\frac{7x}{2}=-7\\x=-7*\frac{2}{7}\\x=-2

If f(x)=g(x), the solution is x=-2

7 0
3 years ago
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Nat2105 [25]
X=-8/z-2y...
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The table shows the number of flights leaving an airport. How many flights leave in four days?
Vera_Pavlovna [14]

Answer:

16

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1 times what equals 16

what =16

2 times what equals 32

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etc....

The answer is 16 because the table shows multiples of 16.

16, 32, 48,64, 80....

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