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3 years ago

YESSS love struggling 7th grade math problem ......... help me

Mathematics

1 answer:

Dimas [21]3 years ago

4 0

Answer:

x = 20

ABC = 85

BCA = 81

CAB = 14

Step-by-step explanation:

I answered your other question, so basically just read the explanation there cuz I'm too lazy to write it again :P

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Given that f(x) = 19x2 + 152, solve the equation f(x) = 0

telo118 [61]

Option A

The solution is:

$x = \pm 2i \sqrt{2}$

Solution:

$f(x) = 19x^2+152$

We have to solve the equation f(x) = 0

Let f(x) = 0

$0=19x^2+152$

Solve the above equation

$19x^2 + 152 = 0$

$\mathrm{Subtract\:}152\mathrm{\:from\:both\:sides}\\\\19x^2+152-152=0-152\\\\Simplify\ the\ above\ equation\\\\19x^2 = -152\\\\\mathrm{Divide\:both\:sides\:by\:}19\\\\\frac{19x^2}{19} = \frac{-152}{19}\\\\x^2 = -8$

Take square root on both sides

$x = \pm \sqrt{-8}\\\\x = \pm \sqrt{-1}\sqrt{8}\\\\\mathrm{Apply\:imaginary\:number\:rule}:\quad \sqrt{-1}=i\\\\x = \pm i\sqrt{8}\\\\x = \pm i \sqrt{2 \times 2 \times 2}\\\\x = \pm 2i\sqrt{2}$

Thus the solution is found

5 0

3 years ago

Smplify the expression: 5+6i/4+6i

skelet666 [1.2K]

The answer would be 5 + 15i/2.

1. 5 + 3i/2 + 6i

2. 5 + (3/2i + 6i)

3. 5 + 15i/2.

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3 years ago

Your classmate kelly, claims that 16 year olds are actually the safest teenage drivers because they have the least number of acc

FromTheMoon [43]

Disagree, at 16 you just get your license,while someone who’s 32 may have gotten into 2 accidents, but the 32 year old has had their licence for longer than the 16 year old,

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3 years ago

Pls help i will give brainliest

Ludmilka [50]

Answer:

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3 years ago

7x=42

Airida [17]

Answer:

Step-by-step explanation: