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2 years ago

Simplify the expression 8 + (7 + x)

Mathematics

1 answer:

baherus [9]2 years ago

6 0

Answer:

15 + x

Step-by-step explanation:

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19. At a restaurant. Levy's total bill is $46.

ale4655 [162]

Answer:

D

Explanation:

46(0.15)=6.9

6 0

2 years ago

Please help and explain

Murrr4er [49]

Answer: Option A

$x=\frac{3+i}{2}$ or $x=\frac{3-i}{2}$

Step-by-step explanation:

Use the quadratic formula to find the zeros of the function.

For a function of the form

$ax ^ 2 + bx + c = 0$

The quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case the function is:

$2x^2-6x+5=0$

$a=2\\b=-6\\c=5$

Then using the quadratic formula we have that:

$x=\frac{-(-6)\±\sqrt{(-6)^2-4(2)(5)}}{2(2)}$

$x=\frac{6\±\sqrt{36-40}}{4}$

$x=\frac{6\±\sqrt{-4}}{4}$

Remember that $\sqrt{-1}=i$

$x=\frac{6\±\sqrt{4}*\sqrt{-1}}{4}$

$x=\frac{6\±\sqrt{4}i}{4}$

$x=\frac{6\±2i}{4}$

$x=\frac{3\±i}{2}$

$x=\frac{3+i}{2}$ or $x=\frac{3-i}{2}$

3 0

3 years ago

i am stuck on a question and i need help solving it so, this is my question what is 9n-12=3n if someone could help me i would ap

Mamont248 [21]

Answer:

The answer is n=1

Step-by-step explanation:

The steps are in the picture. Hope this helps :)

5 0

2 years ago

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What is the mode of the following numbers? 6,4,1,9,3,8,3,5,10

siniylev [52]

Answer:

Step-by-step explanation:

Mode is the number that appears most often in a set, so for this one the mode would be 3 since it appears the most often

7 0

3 years ago

This is math can someone help me

Pani-rosa [81]

272 fluid ounces of lake water

5 0

2 years ago

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