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valina [46]
3 years ago
6

Ten times a number a added to three times a second number b divided by a third number c.​

Mathematics
1 answer:
pentagon [3]3 years ago
5 0

Answer:

10a+3b÷c/3

Step-by-step explanation:

let the first number be a

second be b

third be c

10×a +3×b ÷c÷3

10a+3b÷c/3

=10a+3b÷c/3

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Find the axis of symmetry, vertex, domain, range to y=x^2-6x=+7
Wewaii [24]
<span>First, we want to get the +7 on the other side of the equal sign, so we subtract 7 on both sides.

</span><span>x^2 - 6x<span> - 7</span> = 7 <span>- 7
</span>x^2 - 6x - 7

Next, we use the formula \frac{-b}{2a} to find the axis of symmetry.
Because this is a quadratic equation, it is in the form
ax^2 + bx + c
We need to identify the a b and c values.

</span><span>ax^2 + bx + c
</span><span>(1)x^2 - 6x - 7
a = 1, b = -6 and c = -7.

Substitute the a and b values into the equation to find the axis of symmetry.

</span>\frac{-b}{2a}<span> = \frac{-(-6)}{2(1)}</span><span> = \frac{6}{2} = 3

The axis of symmetry is is 3.
The axis of symmetry is also the x coordinate of our vertex.
To find the y coordinate, substitute the axis of symmetry we found into the original quadratic equation by replacing each x variable with 3.

</span><span>x^2 - 6x - 7
(3)^2 - 6(3) - 7
9 - 18 - 7
-16

The vertex is (3, -16)

</span>The domain represents all possible x-values of the parabola. Because our function will always be getting wider graphically, it will cover every possible x value. The domain is all real numbers.

The range represents all possibly y values. The parabola will always be going up, but it only goes as far down as to the minimum vertex, making the range all real numbers that are greater than or equal to −16. The range can be written as y ≥ −16.

So,

Axis of symmetry: 3
Vertex: (3, -16)
Domain: All real numbers
Range: y ≥ −16

Hope this helps!!
Let me know if there's anything you don't understand and I'll try to explain as best I can.
4 0
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How many real solutions does a quadratic equation have if it's discrimination is zero
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8. Archie plotted the points on the graph below to show how the amount he owes for tuition decreases as the number of tuition pa
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Answer:c

Step-by-step explanation:

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2 years ago
A can has a radius of 1.5 inches and a height of 3inches. Which of the following best represents the volume of the can .
ZanzabumX [31]

Answer:

A can has a radius of 1.5 inches and a height of 3 inches. Which of the following best represents the volume of the can? a. 17.2 in b. 19.4 in c. 21.2 in d.Step-by-step explanation:

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A group of 4 friends paid a total of $50.24 for tickets to a museum. Each friend paid the same amount for a ticket. Solve this a
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Answer:

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Step-by-step explanation:

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I divided the total cost by the amount of friends who went to the museum and so I did $50.24 divided by the 4 friends = $12.56.

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