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3 years ago

Here is the question

Mathematics

1 answer:

serg [7]3 years ago

5 0

First find the amount of the difference between the original price and the current price:

$10,600 - $7,400 = $3,200

Divide the difference by the original price:

3200 / 7400 = 0.4324 = 43.2% increase.

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Can someone check if this is right please? If not what is the correct way?

Charra [1.4K]

A, B, and C are the coefficients. They are not the terms as you have written now.

A quadratic equation is in the form Ax^2 + Bx + C. Therefore, A = 1, B = 8, and C = -6.

The axis of symmetry is found using the equation -b/2a, as you've done. Therefore, the axis of symmetry is -8/2(1) = -4.

Hope this helps!! :)

6 0

3 years ago

John and alicia are asked to clean the barn. john can clean the barn by himself in 3 hours and together they can clean the barn

Flura [38]

1 and 1/8 of an hour because Alisha took away that amount of time from johns time.<span />

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3 years ago

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Please help me by answering this?

Dmitrij [34]

Answer:

180

Step-by-step explanation:

$\frac{6}{2} x^{2} | \frac{8}{2}$

192-12=180

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2 years ago

For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?

STatiana [176]

Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

$z=\frac{x-\mu}{\sigma}$

Top 60% means greater than 40%.

Let us find z-score corresponding to normal score to 40% or 0.40.

Using normal distribution table, we got a z-score of $-0.25$ .

Upon substituting our given values in z-score formula, we will get:

$-0.25=\frac{x-500}{100}$

$-0.25*100=\frac{x-500}{100}*100$

$-25=x-500$

$-25+500=x-500+500$

$x=475$

Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.

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2 years ago

Find the value of a and explain

Irina-Kira [14]

Answer:

Step-by-step explanation:

The triangle is an isosceles triangle which means that two sides are the same, A is the same size of the equal side so A is D.

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3 years ago

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