4 years ago

Evaluate the expression for w= - 9 2(w+3)=

Mathematics

2 answers:

lara [203]4 years ago

8 0

Answer:

2(-9+3) = -12

scZoUnD [109]4 years ago

8 0

Answer:

Step-by-step explanation:

w= - 9

2(w+3)

= 2(-9+3)

= 2(-6)

= -12

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What is the slope of the line that passes through the points (1,7) and (-4,-8)?

julia-pushkina [17]

Answer:

The slope of the line that passes through the points (1,7) and (-4,-8) is 3.

Step-by-step explanation:

The equation of a line has the following format.

$y = ax + b$

In which a is the slope.

Passes through the point (1,7)

When $x = 1, y = 7$

$y = ax + b$

$7 = a + b$

Passes through the point (-4, -8)

When $x = -4, y = -8$

$y = ax + b$

$-8 = -4a + b$

We have to solve the following system

$a + b = 7$

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We want to find a.

From the first equation

$b = 7 - a$

Replacing in the second equation

$-4a + b = -8$

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3 years ago

find three consecutive even integers such that the sum of the smallest integer and twice the median integer is 20more than the l

3241004551 [841]

X = smallest; x + 2 = middle, and x + 4 = largest
x + 2(x+2) = 20 + x + 4
x + 2x + 4=24 +x
3x + 4 = 24 + x
2x = 20
x = 10
so the three integers are 10, 12, and 14

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4 years ago

Evaluate the expression for w= - 9 2(w+3)=​

Evaluate the expression for w= - 9 2(w+3)=