MATHEMATICS HIGH SCHOOL

Of the 8760 hours in a year, one television was on for 2190 hours. What percent is this?

Answers

Answer 1
Answer: IS 25%, YOU FIND OUT BY DIVIDING 8760/100=87.60 WHICH REPRESENTS 1 PERCENT  AND THEN 2160/87.60=25%
ALSO, IF YOU DIVIDE 8760/2190=4, SO THIS REPRESENTS 25%
HOPE IS CLEAR

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Which of the following statements are true regarding functions? *Check all that applyA. The horizontal line test may be used to determine whether a function is one-to-one.B. A function is a relation in which each value of the input variable is paired with exactly one value of the output variable.C. The vertical line test may be used to determine whether a function is one-to-one.D. A sequence is a function whose domain is the set of real numbers.
Identify whether the given value of the variable makes the equation true. –5r – 6 = –26; r = 4 A.false B.true
Help the image says it all
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Based on an architectural drawing, a roof slopes to a drain along the function represented in the table that defines the edge of slope, where x is the horizontal distance in feet and f(x) is the vertical distance in feet. Graph X / 0 / 20 / 40 / 80 / 160 F(x)/ 8 / 6 / 4 / 0 / 8 If the drain is at the minimum point, how far is it from the wall defined by the y-axis? 0 feet 8 feet 80 feet 160 feet

Answers

Answer:

80ft

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

What is the equation of the graphed line in point-slope form? y – 1 = 2/3 (x + 3), y – 1 = 2/3 (x – 3), y + 1 = 2/3 (x – 3), y + 1 = 2/3 (x + 3) (Points are at (-3,-3) and (3,1)

Answers

Slope = 4/6= 2/3
Intercept is -1 (I think just check with gradient on graph in doing in my head)

Y=MX+B
Y=2/3X-1 ( if my calculations add up

What is the simplified form of expression ? 5(14 - 2) to the 2nd power over 2

Answers

Answer:

The answer is 1728

Step-by-step explanation:

Given the expression 5(14 - 2) to the 2nd power over 2, this can be written mathematically as;

{5(14 - 2)}²/2

Step1: we will solve for the function in bracket to have;

{5(12)}²/2

Step 2: we will take the square of the values in bracket since they are both raise to power of 2 to have;

(5²×12²)/2

= 25×144/2

Step 3: simplify the resulting equation to give;

= 24×72

=1728

The simplified form of the expression is 1728
5(14−2)^2/2
=5(12^2)/2=
(5)(144)/2
=720/2=
360

Is 7, 695 divided by 855 positive or negative?

Answers

Answer:

Negative

Step-by-step explanation:

A positive divided by a negative will always be negative.

Answer:

if they are both positive its positive

if ones positive and ones negitive its negative

if they are both negative its positive

Step-by-step explanation:

To increase an amount by 17.5% what single multiplier would you use?

Answers

You would multiply that number by 1.175


Remember that 17.5%=17.5/100=0.175

I this case, there is a whole number that is increasing by 17.5% so we add a whole to the 17.5%

100%+17.5%=117.5% or 1.175


So if 'x' was the number, the expression would look like:

1.175x
Adding 

say 100 +17.5% 

117.5 would be the answer 

Find the missing side and round to the nearest tenth

Answers

In this problem you use cosine because you know the hypotenuse and you want to know the adjacent side of the triangle. So in your calculator you would input cos(52). Then you would multiply that answer with the hypotenuse side. So your equation would be this:  cos(52) x 13
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