MATHEMATICS HIGH SCHOOL

What is the vertex of the quadratic function f(x) = (x – 8)(x – 2)?

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Answers

Answer 1
Answer:

Answer:

( 5, -9 ) is the answer
Answer 2
Answer:

Answer:

⅞2781x 3862

Step-by-step explanation:

i don't know but that is my answer ok kayat taposin Mona ang module mo

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Which function has an inverse that is a function? b(x) = x2 + 3
d(x) = –9
m(x) = –7x
p(x) = |x|

Answers

On the attached diagram you can see all graphs of functions b(x), d(x), m(x) and p(x).

Finding the inverse of a function f(x):

1. First, replace f(x) with y. This is done to make the rest of the process easier.

2. Replace every x with a y and replace every y with an x.

3. Solve the equation from Step 2 for y. This is the step where mistakes are most often made so be careful with this step.

4. Replace y with f^(-1)(x). In other words, you’ve managed to find the inverse.

5. Remember: the domain of f is the range of f^(-1) and the range of f is the domain of f^(-1).

Using this algorithm, you can find the inverse only in case C:

for m(x)=-7x:

1. y=-7x.

2. x=-7y.

3. y=-x/7.

4. m^(-1)(x)=-(x)/(7).

5. The domain and the range of m(x) are all real numbers as well as the domain and the range of m^(-1)(x).

Functions b(x) and p(x) are not one-to-one functions (see attached diagram), then you can't find an inverse function. Function d(x) doesn't include x, then you can't also find an inverse function.
Hello,

Answer C

y=-7x ==>x=-7y==>y=-x/7 is the inverse of m(x)
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CAN SOMEONE PLEASE HELP ME!!!????One 1700 lb load of feed mixture contains 25% corn and 40% bran; the rest is roughage. How many pounds of corn should be added to a load of feed mixture to make the mixture 40% corn?

Answers

Answer:

extra 15% corn.

.15 ⋅ 1700 = 255

You would have to add 255 pounds of corn

Not sure if its right--

Find the constant of variation k for the direct variation 2x +6y = 0

Answers

A relationship between two variables in which one is a constant multiple of the other. The constant here is also called the constant of variation. In order to obtain this value, we manipulate the equation by isolating the variables. We do as follows:

2x +6y = 0
y = -x/3

Therefore, the constant of variation is -1/3. Hope this answers the question. Have a nice day.

Mr Taylor brought back 180 Euros to the UK. The exchange rate was €1.2 to £1. How much did he get in £ sterling?

Answers

The answer is £150.

This could be calculated using proportion. If £1 is €1.2, how many £ is €180:
£1 : €1.2 = x : €180
x = £1 ÷ €1.2 × €180
x = £150

Davies knows that the area of his square-shaped bag is 81 feet^2. what is the length of any side of the bag?

Answers

if it's a square all sides are 9 feet...9x9=81

List the six elements necessary for life and give examples of three molecules that contain those elements?

Answers

Answer:

Water H20 contain H2 and O2

Glucose C6H12O6 contain C , H2 ,and O2.I dont have another idea for the moment

Step-by-step explanation:
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