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padilas [110]
3 years ago
15

Words to know

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

A. The extreme point which can be the maximum or minimum is called the vertex.

B. Parabolas increase or decrease which refers to the maximum or minimum.

Volgvan3 years ago
6 0

Answer: Switch a with c and you are good. I think that is what you are asking?

Step-by-step explanation:

You might be interested in
movie tickets cost $9.95 for adults and $6.75 for kids they buy 2 adult tickets and 4 students and $28 popcorn
Harrizon [31]

Answer:

the total is $153.9

Step-by-step explanation:

The total for the adults is $19.9

The children $27

Popcorn $224

$9.95×2=$19.9

$6.75×4=$27

$28×6=$168

6 0
3 years ago
The height of a triangle is 8ft greater than the base. The area of the triangle is 136.5 square ft. Find the length of the base
mixer [17]

Answer:

the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

Step-by-step explanation:

Note that the formula for the area of a triangle is A = (1/2)(base)(height).  Let's abbreviate that to A = (1/2)(b)(h).   We are told that h = b + 8.

Then A = 136.5 = (1/2)(b)(b + 8), or

               (after multiplying both sides by 2)

          A = 273 = b^2 + 8b

                which, when put into standard quadratic form, becomes:

b^2 + 8b - 273 = 0

The coefficients of this quadratic are a = 1, b = 8 and c = -273.

Thus, the discriminant is b^2 - 4ac, or 64 - 4(1)(-273) = 1156 = 17^2.

The roots are then

      -8 ± √1156            -8 ± 17

x = --------------------  =  ------------ = 9/2 and -25/2

              2                          2

Only the root 9/2 makes sense here, because measurements of length are positive.

Thus, the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

3 0
3 years ago
Is that right? <br><br> If not please help me out.
Alex73 [517]

Answer:

Yeah.it is right

Step-by-step explanation:

7 0
3 years ago
What is the surface area of a tank that has a length of 30 feet, a width of 15 feet?
Lady bird [3.3K]

Answer:

450

Step-by-step explanation:

Multiply the length (30) by the width (15)

30x15=450

8 0
2 years ago
What is 5 1/2 x 2 1/3 ?
shutvik [7]
5 1/2 * 2 1/3 =
11/2 * 7/3 =
77/6 =
12 5/6 <===
3 0
3 years ago
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