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Anettt [7]
3 years ago
7

What is the quadratic formula ​

Mathematics
1 answer:
Katena32 [7]3 years ago
6 0

In elementary algebra, the quadratic formula is a formula that provides the solution to a quadratic equation. There are other ways of solving a quadratic equation instead of using the quadratic formula, such as factoring, completing the square, graphing and others. 

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Is it possible for two tangents to intersect outside the circle?
natka813 [3]

Answer:

No.

Step-by-step explanation:

If they do intersect, the measurement of the angles they form is a half the difference of the intercepted arcs; both of the intercepted arcs would measure 180 degrees.

4 0
3 years ago
please help!!! the study conducted was 6 days long: there was 72mm of plant food and it decreased an equal amount each day.
Anuta_ua [19.1K]

Answer:

f(x) = 72 - 12x

Step-by-step explanation:

No. of days of study = 6

Amount of food to use for the 6 days = 72 mm

Given that equal amount of food was used each day, amount used per day = \frac{72}{6} = 12 mm

This would enable us derive a function for the amount of food remaining f(x), which can be expressed as a function of the number of days that have passed, (x).

Thus, we would have:

f(x) = 72 - 12x

Let's check if this equation expresses the relation of the function well.

At the end of day 1, if we used, 12mm, we would have 72 - 12 = 60mm of food remaining.

If we replace x in the equation we derived, we would get the same 60mm as the amount of food remaining.

If you try 2, 3, 4, 5 days, you'd get same thing.

At the end of the study, after the 6th day, the food would remain nothing.

Replace 6 for x in the relation function derived, you'd get a value of 0.

6 0
3 years ago
Can u pls help me with this question ​
Shalnov [3]

Answer:

A, C, D

Step-by-step explanation:

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3 years ago
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The exchange rate at the Post Office is $1 = (1.17<br><br> How many euros will you get for E280?
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Answer:

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Step-by-step explanation:

7 0
2 years ago
Expand: -3(x – y + 5)​
HACTEHA [7]

Answer:

-3x+3y-15

Step-by-step explanation:

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3 years ago
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