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ahrayia [7]
2 years ago
7

8.A great white shark swims 22 feet below sea level. If the angle of

Mathematics
1 answer:
melomori [17]2 years ago
8 0
A 22 ferry below sea depression from the sailboat
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A parabola intersects the x-axis at x=3 and x=9 what is the x-coordinate of the parabola's vertex?
KiRa [710]

Here we are given the x intercepts at x=3 and x=9

So let us try to make quadratic equation for this using given information.

We have factors in the form (x-a)(x-b)

where a and b are x intercepts given to us.

So rewriting in factored form:

y=(x-3)(x-9)

Now let us simplify it:

y=x^{2}-12x+27

Let us find the vertex now,

For a quadratic equation of the form:

y=ax^{2}+bx+c

For x coordinate , we have the formula,

x=\frac{-b}{2a}

So using this formula for our equation,

x=\frac{-(-12)}{2(1)}

So x = 6

Answer: The x-coordinate of the parabola's vertex is 6.


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3 years ago
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SOMEONE PLEASE HELP ME I’LL GIVE OUT BRAINLIEST PLEASE DONT ANSWER IF YOU DON’T KNOW ORDER OF OPERATION
bezimeni [28]

Answer:

the answer is 85

Step-by-step explanation:

OREDR OF OPERATIONS IS

Parenthesis

exponents

multiple/divide

add/subtract

all in that order

5 0
3 years ago
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Write down mrs Chauke balance on the 25 march 2021 in words​
Yanka [14]

Answer:

A line passes through the points (-4,1) and (-3,3). This line can be modeled by the equation y

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2 years ago
How to Simplify. (–21 × 3) + (15 ÷ –3)
vladimir2022 [97]

Answer:

-68 is your answer

Step-by-step explanation:

Remember to follow PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)

First, solve each parenthesis

(-21 x 3) = -63

(15/-3) = -5

Next, add

(-63) + (-5) = -63 - 5 = -68

-68 is your answer

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5 0
3 years ago
What is the mean in 74,75,80,76,75,81,78?
Alina [70]

Answer:

77

Step-by-step explanation:

Add the numbers together, then divide them to how much numbers are there.

74 + 75 + 80 + 76 + 75 + 81 + 78 = 539

Since there are 7 numbers, you divide 539 by 7.

539/7 = 77

6 0
3 years ago
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