3 years ago

PLS HELP WITH THIS QUESTION GIVING BRAINLIST

Mathematics

1 answer:

Aleks04 [339]3 years ago

8 0

Answer: 1: 5(3x+4)

2: 6(x2+4x−3)

3: 5x(4x2−3x+2)

4: 4n2(4n2-3)

Step-by-step explanation:

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A line with a slope of -1/3 passes through the point (9,3). What is its equation in point-slope form?

amm1812

The point-slope form:

$y-y_1=m(x-x_1)$

We have:

$(9,\ 3)\to x_1=9,\ y_1=3\\\\m=-\dfrac{1}{3}$

Substitute

$y-3=-\dfrac{1}{3}(x-9)$

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3 years ago

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3 years ago

If a concrete mix contains 1-1/2 cubic feet of gravel, 1/2 cubic foot of water,

Karolina [17]

Answer:

The correct answer is "50%".

Step-by-step explanation:

The given values are:

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= $(1-\frac{1}{2} )$

Water,

= $\frac{1}{2}$

Cement,

= 1

Sand,

= 2

Now,

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= $Gravel+Water+Cement+Sand$

By substituting the values, we get

= $(1-\frac{1}{2} )+\frac{1}{2} +1+2$

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hence,

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2 years ago