MATHEMATICS HIGH SCHOOL

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.

Answers

Answer 1
Answer:

Answer: A and B.

C. FALSE, because the vertical line test may be used to determine whether a relation is the function.

D. FALSE, because the function domain can be any set.
Answer 2
Answer:

Answer:

It's A and B bbbbb bbb bbb bbb  a  a a  a a aa a a a a a aa a aaaaaaaaaaaa  a  ababbababbababbababba aba ab baba ab ba babb abba ba ba b ab ab bab abab ab ab ab ab ab aba ba ba ab

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The class of 2015 decides to start a T-shirt company. After initial expenses of $280, the purchase each t-shirt for $3.99. They sell each t-shirt for $10.99. how many must they sell to break even?

Answers

$280=budget

10.99-3.99= $7 profit made with each shirt

$280/7= 40

Therefore the class must sell at least 40 t shirts to break even
70 bc, if u round up 3.99 it equals 4. then 4x70=280 the number you want. and if you round up 10.99 to 11 its 770 so you would have 490 left over to buy more

Find the surface area.
24 yd
15 yd
15 yd
+13 yd
15 yd

Answers

The surface area of the figure in square yards is 1275 square yards

Surface area of a prism

The surface area of a figure is the tota sum of all the area of the faces.

For the given diagram, it consist of 2 triangles and 3 rectangles

Area of the figure = 3(24 * 15) + (13* 15)

Surfacea area = 3(360) + 195
Surface area = 1080 + 195

Surface area = 1275 square yards

Hence the surface area of the figure in square yards is 1275 square yards

Learn more on surface area of prism here: brainly.com/question/1297098
For what value of x does 32x - 93x-4 ?

1352 pounds is what fraction of a short ton?

Answers

A \ short \ ton \ is \ 2\ 000 pounds \n \n (1352)/(2000) \ \ \ \ \ \ divided \ numerator \ and denominator \ by \ 2 \n \n=(676)/(100) \ \ \ \ \ \ divided \ numerator \ and denominator \ by \ 2 \n \n =(338)/(500)\ \ \ \ \ \ divided \ numerator \ and denominator \ by \ 2 \n \n =(169)/(250)

The factorization of x2 + 3x – 4 is modeled with algebra tiles.What are the factors of x2 + 3x – 4?
(x + 4) and (x – 4)
(x + 3) and (x – 4)
(x + 4) and (x – 1)
(x + 3) and (x – 1)

Answers

The quadratic trinomial can be factor using the following formula:

ax^2+bx+c=a(x-x_1)(x-x_2), \text{ where } x_1,\ x_2 \text{ are trinomial roots}.

1. For the quadratic trinomial x^2 + 3x - 4 find the roots:

.

2. The factoring form of trinomial is

x^2+3x-4=(x+4)(x-1).

3. The factors are x+4 and x-1

Answer: correct choice is C.
x² + 3x - 4

factors of x² are x * x
factors of -4 that will result to a +3

4 * -1 = -4
4 - 1 = 3

(x + 4) and (x - 1)

x(x-1) + 4(x-1)
x² - x +4x - 4
x² + 3x - 4

Need help with this HW solution. I have tried many times but just can't seem to work it out properly.

Answers

As a starter, the y value is equal to f(x); the x value is equal to the x in f(x).

So basically, in this case, replace x with the number in the brackets.

Coordinates have x, y values (x, y). Here, we know x is -2, so we need to find y.

on the graph, find x = -2 and find where the line of the drawn graph intersects it. Looks like the line intersect x = -2 when y = 3. So f(-2) = 3.

Same applies for b: x = 0, find where the line hits x = 0, and that's your y value, which is 1.

Tried my best to simplify it. Hope it helps lol.

Using the completing-the-square method, find the vertex of the function f(x) = –2x2 + 12x + 5 and indicate whether it is a minimum or a maximum and at what point.. .

Answers

f ( x ) = - 2 x² + 12 x + 5 = - 2 ( x² - 6 x ) + 5 = - 2 ( x² - 6 x + 9 - 9 ) + 5 =
- 2 ( x² - 6 x + 9 ) + 18 + 5 = - 2 ( x - 3 )² + 23 
f ( x ) = a ( x - k )² + h ( the vertex form ), k = 3, h = 23. 
a = - 2 < 0, that means the vertex coordinates ( 3, 23 ) represents a maximum.

Answer:

3,23 maximum

Step-by-step explanation:
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