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IrinaVladis [17]
3 years ago
9

What is the equation of the axis of symmetry of a parabola if its x-intercepts are –3 and 5?

Mathematics
1 answer:
melisa1 [442]3 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

The axis of symmetry is a vertical line and is located at the midpoint of the x- intercepts, thus

x = \frac{-3+5}{2} = \frac{2}{2} = 1

That is equation of symmetry is x = 1

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Calculate a rough estimate of the total lineal footage of lumber needed for a rectangular house 35’ x 40’?
Maru [420]

Answer:

B. 1,500’

Step-by-step explanation:

Given;

dimension of the rectangular house, = 35’ x 40’

The actual total linear footage of lumber needed = 35’ x 40’ = 1,400'

The rough estimate should be greater than the actual estimate in 100s;

rough estimate = 1,400' + 100' = 1,500'

Therefore, the rough estimate of the total linear footage of lumber needed is 1,500'.

7 0
3 years ago
Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends a
Natasha_Volkova [10]

Answer:

16 friends

Step-by-step explanation:

Right at the beginning, you can take the 2 chocolates Jack was left with out of the 50 chocolates Jack had at the beginning. That equals 48 chocolate bars, so we know that Jack gave his friends a total if 48 chocolates

50 - 2 = 48

Now that you have the number 48, you are really close to the answer.

If you know that he gave each if his friends 3 chocolates, you can make that into an equation and put it into a calculator. That would look like this:

48 \div 3 = 16

The reason you do 48 ÷ 3 is because Jack divided his 48 chocolates into groups of 3 to give to each of the other kids.

You get the answer 16, which means the answer is 16 kids at his friend's birthday party.

3 0
3 years ago
Find the opposite of: - 4x2 - 4x + 2
vladimir2022 [97]

Answer:

4x² + 4x - 2

Step-by-step explanation:

The opposite is the negative value

The opposite of - 4x² - 4x + 2 is

- (- 4x² - 4x + 2) ← distribute parenthesis by - 1

= 4x² + 4x - 2

8 0
2 years ago
The weekly ad for a local grocery store advertises a 5 pound bag of organic apples for $13.95
masya89 [10]
There is no question therefore I cannot answer
4 0
3 years ago
Suppose f(x) = 3x^2 - 2x... Find f(-4)​
zavuch27 [327]
Let x equal to -4 and substitute into the original function f(x)
f(-4)=56
4 0
3 years ago
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