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3 years ago

Simplify the expression -4x(6x-7)

Mathematics

2 answers:

matrenka [14]3 years ago

6 0

The answer to the expression is -24x+28x

Virty [35]3 years ago

5 0

Answer:

$-24x^2+28x$

Step-by-step explanation:

To simplify this expression, we must eliminate the parenthesis applying the distributive property (multiplying each term that within the parenthesis by which it is outside)

$-4x(6x-7)\\ -24x^2+28x$

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Betsy's mom likes to bake.

Amanda [17]

Answer:

Step-by-step explanation:

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3 years ago

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What is the rate of change and initial value for the linear relation that includes the points shown in the table? x; 1,3,5,7

BARSIC [14]

Answer:

The rate of change is -5

The initial value is 25

Step-by-step explanation:

Since, this is a linear relation

so, we can select any two points and find equation of line

points are (1,20) and (3,10)

so,

$x_1=1,y_1=20$

$x_2=3,y_2=10$

now, we can find slope

$m=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$m=\frac{10-20}{3-1}$

$m=-5$

now, we can use point slope form of line

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

now, we can plug values

$y-20=-5(x-1)$

now, we can solve for y

$y=-5x+25$

we know that

slope is the rate of change

So, the rate of change is -5

For finding initial value , we can plug x=0 and find y

$y=-5\times 0+25$

$y=25$

So, initial value is 25

3 0

3 years ago

I need help on this math question

xz_007 [3.2K]

Answer:

slope = $\frac{4}{5}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 3, 0 ) and (x₂, y₂ ) = (2, 4) ← 2 points on the line

m = $\frac{4-0}{2-(-3)}$ = $\frac{4}{5}$

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3 years ago

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"Eighty and fifteen hundredths" in numbers (decimals)

Black_prince [1.1K]

Answer:

80.15

Step-by-step explanation:

Eighty and fifteen hundredths = 80.15

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4 years ago

0.2(x+50)-6=0.4(3x+20) ( show work please)

garri49 [273]

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4 years ago

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