MATHEMATICS HIGH SCHOOL

Evaluate 18 + 4 ÷ 2 − 8.

2
8
12
3

Answers

Answer 1
Answer: 12

Working;
First evaluate the division;
4÷2=2
Work on addition;
18+2= 20
work on subtraction;
20-8=12

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Alessandro wrote the quadratic equation –6 = x2 + 4x – 1 in standard form. What is the value of c in his new equation?

Answers

The standard form of a quadratic equation is Ax^2 + Bx + C = 0. So for –6 = x^2 + 4x – 1 to be in its standard form, we can move -6 to the other side of the equation and have x^2 + 4x + (-1 +6) = 0 x^2 + 4x + 5 = 0 So, from the standard form, the value of of C is 5.

Answer:

Step-by-step explanation:

Classify the following as rational or irrational: a) -1/5

Answers

Answer:irrational

Step-by-step explanation:its a negative fraction

Raffle tickets are being sold for a fundraiser. The relationship between n, number of raffle tickets sold, and A, amount of money in dollars raised, is given by the function below.A(n)=4n-25

What is the equation of the inverse function N(a)?

Answers

If the function is
A(n) = 4n -25

and we wish to get the inverse function N(a)

We let
A(n) = a
n = N(a)

Plugging in the values
a = 4 N(a) - 25

Arranging the equation:
4 N(a) = a + 25
N(a) = (a + 25) /4

The answer is
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How do i solve log6(25)-log6(5)

Answers

There's nothing there to solve.  But you can simplify the expression.

-- The difference of two logs is the log of the quotient.

                      log₆(25)  -  log₆(5)

                   =    log₆(25/5)  =  log₆(5) .

That may be all you can do with it.
If they want you to go ahead and actually find the value of  log₆(5) ...
I don't remember how to do that.  If it was  log₁₀(5)  or  ln(5) ,
those would be easy, because they're right on your calculator.
But the log to the base of (anything else other than 10 or 'e') takes
an additional step, which I don't remember.  

a marching band requires a tuba player to begin at the 50 yard line of a football field perpendicular to the 40 yard line. He then makes a 30 degree turn and marches at a diagonal back to the 50 yard line.Once he reaches the 50 yard line he must march forward until; he reaches his original starting position.If the tuba player travels 18 invhes with each marching pace how many paces must he take to complete the routine?

Answers

20/3 paces must he take to complete the routine.

How to find the steps he must take to complete the routine?

The marching band begins at the 50-yard line of a football field and marches perpendicular to the 40-yard line.

Hence,

So when the tuba players travel 18 inches with each marching pace, the paces are:

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So, the answer is 20 / 3  paces.

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well yes, i took 50, 40, 18 and added two 50. I then got 238 as the answer but honestly math is like my worse subject. I tried looking like examples on how to do it and in one of my math books but this what i got. I really hope i helped tho :)

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Please note your working out with your answer, thank you.

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Q13) A boat is 420m from the base of the cliff. The angle of depression of the boat from the top of the cliff is 28 degrees. Find the height of the cliff to the nearest metre.

Answers

Hello,
I am not doing that with sin, cos and pythagorean theorem.

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This means that in a right triangle the tangent of an angle is the ration of opposed side by adjacent side.

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