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pogonyaev
3 years ago
13

(1 point) the equation for a parabola has the form y=ax2+bx+cy=ax2+bx+c, where aa, bb, and cc are constants and a≠0a≠0. find an

equation for the parabola that passes through the points (−1,−10)(−1,−10), (−3,−8)(−3,−8), and (−4,−1)(−4,−1).

Mathematics
1 answer:
Kryger [21]3 years ago
5 0
A graphing calculator working the quadratic regression problem for these three points gives the equation as

y = 2x² +7x -5

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Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area
harkovskaia [24]

Answer:

The area  of the cover for the hot tub must be:

  • <u>38 square feet</u>.

Step-by-step explanation:

First, you must understand that since a hydromassage tub is mentioned and the diameter, it is assimilated that it is round in its upper part, which is why the formula is used to find the area of a circle:

  • <u>Area of a circle = pi * radius ^ 2</u> (you must know that the radius is half the diameter)

Since the diameter is mentioned, it can be replaced in the formula:

  • Area of a circle = 3.14 * (3.5 feet) ^ 2
  • <u>Area of a circle = 38,465 square feet. Approximately 38 square feet</u>.
7 0
3 years ago
Read 2 more answers
If you take half my age and add 7, you get my age 13 years ago. How old am I?
mestny [16]

Answer:

You are currently 40 years old

Step-by-step explanation:

Let's say the current age is represented by the variable x.

x = current age

The question says that "if you take half my age and add 7, you get my age 13 years ago"

This can be represented like this:

1/2(x) + 7 = x - 13

Now we solve for x using basic algebra:

1/2(x) = x - 20

-1/2(x) = -20

x = 40

To check if this is correct, plug it back into the equation and see if both sides equal each other:

1/2(40) + 7 = (40) - 13

20 + 7 = 27

27 = 27

Hope this helps (●'◡'●)

3 0
2 years ago
What is the answer to 5+5=
HACTEHA [7]
The answer to 5+5 is 10
3 0
3 years ago
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PLEASE HELP ASAP 50 POINTS
Katen [24]

Answer:

3x times 5=5 times 3x

Step-by-step explanation:


4 0
3 years ago
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Write down two factors of 18
777dan777 [17]

Answer:

2 and 9

Step-by-step explanation:

6 0
3 years ago
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