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4 years ago

What is this −n+(−4)−(−4n)+6

Mathematics

2 answers:

erastova [34]4 years ago

6 0

Answer:

3n + 2

Step-by-step explanation:

$−n+(−4)−(−4n)+6$

Open the parentheses

$- n - 4 + 4n + 6 \\$

Add similar elements

$- n + 4n - 4 + 6 \\ 3n + 2 \\$

nevsk [136]4 years ago

5 0

Answer:

$- n + 6$

Step-by-step explanation:

$- n + ( - 4) - ( - 4n) + 6 = - n - 4n + 4n + 6 = - 5n + 4n + 6 = - n + 6$

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What is the answer for 6r^2-10r-24

FrozenT [24]

$6r^2-10r-24 =0\\ \\a=6, \ b= -10, \ c= -24 \\ \\ \Delta =b^2-4ac = (-10)^2 -4\cdot6\cdot (-24) = 100+576 = 676 \\ \\ r_{1}=\frac{-b-\sqrt{\Delta }}{2a}=\frac{10-\sqrt{676}}{2\cdot 6 }=\frac{ 10-26}{12}= \frac{-16}{12}=- \frac{4}{3} \\ \\r_{2}=\frac{-b+\sqrt{\Delta }}{2a}= \frac{10+\sqrt{676}}{2\cdot 6 }=\frac{ 10+26}{12}= \frac{36}{12}=3\\ \\ 6r^2-10r-24 = 6(r+\frac{4}{3})(r-3)=(6r+8)(r-3)\\ \\ \\ Answer : \ 6r^2-10r-24 =(6r-8)(r-3)$

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4 years ago

HELP PLEASE !!! Find the measure of <2

mrs_skeptik [129]

M<2 = 90 - 50 = 40
answer
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3 years ago

Total employment for sheet metal workers in 2016 is projected to be 201,000. if this is a 6.3% increase from 2006, approximately

fomenos

Answer:

Option d.

Step-by-step explanation:

Total employment for sheet metal workers in 2016 is projected to be = 201,000

This is a 6.3% increase from 2006.

Let the number of workers in 2006 be n

n + (6.3% of n) = 201,000

n + ( 0.063n) = 201,000

1.063n = 201,000

n = $\frac{201,000}{1.063}$

n = 189,087. 4882 ≈ 189,000

the total employment in 2006 was approximately 189,000

Option d is the answer.

8 0

3 years ago

Ernie merkle earns $750 a week after taxes. in a complete year, how much money will ernie earn?

Lilit [14]

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3 years ago

Slope=0, y-intercept=3

Margarita [4]

Answer:

y=3x

Step-by-step explanation:

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3 years ago