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Leni [432]
3 years ago
15

What is the line of symmetry of the parabola y=x2+6x-9?

Mathematics
1 answer:
Rzqust [24]3 years ago
5 0
First we have to find the vertex (h,k) h is also x and it also is the a xis symmetry

1st: group the number
(X2+6x)-9

2nd: use b/2

6/2 = 3 , 3^2= 9

(X2+6x+9)-9-9

(X2 + 3)-18

Vertex is 3,-18 so the symmetry is 3
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Common Core Sheets
kiruha [24]
144/145

Convert any mixed numbers to fractions
Then your initial equation becomes
48/5 divided by 29/3
5 0
3 years ago
Read 2 more answers
John runs every day. The number of miles that he runs varies per day. Write a variable expression to show John's total miles for
Alekssandra [29.7K]
In this item, we are given that the number of miles that John runs every day vary. Therefore, it is just rightful that we use three different variables for the number of miles he ran for three days. For the purpose of representation in this item, we let the variables be x, y, and z. The total miles he ran is equal to the sum of the three variables. Let T be the total and that would be equal to,

 <em>              T = x + y + z</em>
4 0
3 years ago
1. A professional basketball used for league play has a diameter of 25 cm. Which of the following is closest to the volume of th
yKpoI14uk [10]

Answer:

V = 8,181.23 cm^{3}

Step-by-step explanation:

Unfortunately, we are not given any answer choices to choose from but using the information provided we can find the actual volume of the basketball. A basketball is made in the shape of a sphere and the formula for the volume of a sphere is the following...

V = \frac{4}{3} * \pi  * r^{3}

radius of a circle/sphere is half of it's diameter. Since we are provided the diameter size we simply divide it by 2 which would give us 12.5cm. Now we simply plug this value into the formula and solve for V.

V = \frac{4}{3} * \pi  * 12.5^{3}

V = \frac{4}{3}  * \pi  * 1953.125

V = 8,181.23 cm^{3}

5 0
3 years ago
Which of the following is a like radical to 3x square root 5?
Airida [17]
Pretty sure it’s D good luck
8 0
3 years ago
Which of these is an example of continuous random variable?
Nana76 [90]

Answer:

B. weight of a bag of apples

Step-by-step explanation:

A continuous random variable is a variable that is measured not counted. It can be any number between integers in decimal form.

So from the options given above, only the weight of bag of apples is a continuous variable as it will be measured.

While the others cannot be expressed in the form of decimals.

So the correct answer is:

B. weight of a bag of apples ..

4 0
4 years ago
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