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3 years ago

Multiply (x-2)(3x+4) using the foil method

1 answer:

4 0

<span>Multiply (x-2)(3x+4) using the foil method

</span> $(x-2)(3x+4) = \\ \\ (x*3x) +(x*4) +(-2*3x) +(-2*4) = \\ \\ 3x^2 + 4x - 6x - 8 = \\ \\ 3x^2 -2x - 8 \\ \\ \\ \boxed{(x-2)(3x+4) =3x^2 -2x - 8}$ <span>

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KengaRu [80]

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3 years ago

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sattari [20]

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2 years ago

Which of the following functions are an example of exponential growth ?

yanalaym [24]

Answer:

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2 years ago

Choose the answer that validates that the rate of change is constant by showing that the ratios of the two quantities are propor

docker41 [41]

Given:

The table of values is

Number of Students : 7 14 21 28

Number of Textbooks : 35 70 105 140

To find:

The rate of change and showing that the ratios of the two quantities are proportional and equivalent to the unit rate.

Solution:

The ratio of number of textbooks to number of students are

$\dfrac{35}{7}=5$

$\dfrac{70}{14}=5$

$\dfrac{105}{21}=5$

$\dfrac{140}{28}=5$

All the ratios of the two quantities are proportional and equivalent to the unit rate.

Let y be the number of textbooks and x be the number of students, then

$\dfrac{y}{x}=k$

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2 years ago

the density of a substance is 2.5 cm calculate the volume of the substance if its mass is 25.0 grams

sesenic [268]

Answer:

10 cm³

Step-by-step explanation:

The equation for density is: d = m/v, where d is the density, m is the mass, and v is the volume.

Here, d = 2.5 and m = 25.0, so plug these into the equation to solve for v:

d = m/v

2.5 = 25/v

Multiply both sides by v:

2.5v = 25

Divide by 2.5:

v = 25/2.5 = 10

Thus, the volume is 10 cm³.

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2 years ago