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3 years ago

Simplify the expression to standard form -2.5(-3+ 4n+8)

Mathematics

2 answers:

SpyIntel [72]3 years ago

7 0

Answer:

distribute to get:

7.5 -10n -20

-10n - 12.5

e-lub [12.9K]3 years ago

5 0

Answer:

-12.5-10n

Step-by-step explanation:

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What is the equation of the line that passes through the point (-6, -6) and has a<br> slope of - 1/3

pickupchik [31]

Answer:

The equation of the line is $y = -\frac{1}{3}x - 8$

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope and b is the y-intercept.

Slope of - 1/3

This means that $m = -\frac{1}{3}$

$y = -\frac{1}{3}x + b$

Through the point (-6, -6)

This means that when $x = -6, y = -6$ . So

$y = -\frac{1}{3}x + b$

$-6 = -\frac{1}{3}(-6) + b$

$b + 2 = -6$

$b = -8$

The equation of the line is $y = -\frac{1}{3}x - 8$

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3 years ago

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Fudgin [204]

Answer:

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Step-by-step explanation:

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3 years ago

At a given time of the day, the ratio of the height of an object to the length of its shadow is the same for all objects. If a 3

Lubov Fominskaja [6]

Answer:

20.3 ft

Step-by-step explanation:

The object-shadow ratio for the stick= 3÷1.5=2:1

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Let height of the tree be x

2/1 = x/10.15

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3 years ago

Which value is in the solution set of |x|+9=-2

Eduardwww [97]

Answer:

The equation has no solutions

Step-by-step explanation:

If we re arrange the equation a little more we will obtain the following

|x|=-11

Which is a contradiction since, the |x| is always a positive number

Attached is the representation of this function y= |x|

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4 years ago

Evaluate 0.3 y+\dfrac yz0.3y+ z y 0, point, 3, y, plus, start fraction, y, divided by, z, end fraction when y=10y=10y, equals,

sergij07 [2.7K]

Answer:

Step-by-step explanation:

Put the numbers where the corresponding variables are in the formula and do the arithmetic.

$0.3y+\dfrac{y}{z}=0.3\cdot 10+\dfrac{10}{5}=3+2=5$

The expression evaluates to 5.

6 0

3 years ago