MATHEMATICS HIGH SCHOOL

Show the check. 3B -12/3B + 12 = -2 + 1B + 6The solution to this problem is B=4
But I don’t know how to check the answer, please help and explain, PLEASE!

Answers

Answer 1

Answer:

Answer:

i got 4

Step-by-step explanation:

thats all i could tell u i don't know how to explain it nor check it but i got 4 so thats all i can tell u bestie sorry

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How to i find the missing 2 angles

Answers

Answer:

therefore, x is 71 degrees

Step-by-step explanation:

we know that the exterior angle is 142 degrees.

we also know that we have to find x, which is labeled two times as an interior triangle (in the same triangle), so they must be the same degree.

there are different ways to solve this but the easiest way is this:

exterior angle = opposite interior angle 1 + opposite interior angle 2

142 degrees = x + x

142 degrees = 2x

142/2 = x

x = 71

therefore, x is 71 degrees

List the midline , amplitude and period of the graph then write an equation

Answers

Answ

Step-by-step explanation:

What do zero pairs not do?

Answers

Answer:

They do nothing

Step-by-step explanation:

Answer:

they do nothing it zero pairs

Step-by-step explanation:

Decide whether this statement is always true, never true, or sometimes true, and explain why: In a quadratic equation of the form 0 = ax2 + bx + c, there will be two real solutions if a and c are of opposite signs

Answers

Answer:

Always true

Step-by-step explanation:

Here, we want to evaluate if the given statement is true

The discriminant D can be calculated using the formula;

b^2 - 4ac

if D is greater than 0, then we will have only real roots

In a case where a and c are of opposite signs;

then -4ac will always give a positive value which can be added to b^2

This positive value will ensure that D is greater than zero and hence we can have only real roots

So this assertion is always true if a and c are of opposite signs

What are the solutions to 3x^2+12x+6=0?

Answers

Please see the pic, I'd solved in it.

We use the quadratic formula

x = $\frac{-b +or- \sqrt{b^(2)-4ac } }{2a}$

3x² + 12x + 6 = 0
║ ║ ║
a=3 b=12 c=6

Plug it in:
$\frac{-12 +or- \sqrt{12 ^(2) -4(3)(6)} }{2(3)}$
$(-12+or- √(144-72) )/(6)$
$(-12+or- √(72) )/(6)$

Solutions:
sol.1= $(-12+ √(72) )/(6)$
= -0.585786
≈ -0.6

sol.2 = $(-12- √(72) )/(6)$
= -3.41421
≈ -3.4

The times it took for 35 loggerhead sea turtle eggs to hatch in a simple random sample are normally distributed, with a mean of 50 days and a standard deviation of 2 days. Assuming a 95% confidence level, what is the margin of error for the population mean? A) 0.06. B) 0.11. C) 0.34. D) 0.66