Can yall help me please wiil give brainliest

An arrangement of flowers originally priced at $46.00 is marked down to $35.00. What is the percent of decrease, rounded to the

dmitriy555 [2]

The decrease is 46-35=11 11/46 is approximately 0.23913, or 23.913% Rounded to the nearest whole percent, this is 24%, so I'd say B

8 0

3 years ago

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PLEAS HELP ME WITH FRACTIONS, WHOEVER IS FIRST I MAKE BRAINLIESTTTTT

Romashka [77]

Answer:

$\frac{1}{9}$ × $\frac{1}{3}$

Step-by-step explanation:

Find the fraction of the blue part (simplify as much as possible): $\frac{1}{3}$

Find the fraction of the purple part (simplify as much as possible): $\frac{1}{9}$

7 0

3 years ago

Kendra dives off of a diving board into the water and then comes back up to the surface. Her dive can be modeled by the equation

il63 [147K]

Answer:

1) How high is the diving board?:  6 feet above the water surface

2) How deep does the diver dive into the water?: 6.5feet into the water

3) At what horizontal distance from the board does the diver enter the water? 1 feet from the board

4) At what horizontal distance from the board does the diver come to the surface of the water after the dive? 6 feet from the board

Explanation:

The dive is modeled by the equation h(x) = x² - 7x + 6.

Two important features that you must notice quickly are:

That is a quadratic function, which is a parabola.

Since the leading term, x², is positive, the parabola open upwards, and the vertex is a minimum.

As for the questions:

1) How high is the diving board?

The diving board is the place from which Kendra dives off. At this point, the horizontal distance, x, from the diving board is 0.

Then, the height will be given by h(x) with x = 0. Substitute into the equation and compute:

h(0) = 0² - 7(0) + 6

h(0) = 0 - 0 + 6

h(0) = 6

Therefore, the diving board is 6 feet above the water surface.

2) How deep does the diver dive into the water?

This is the minimum heigth given by the function h(x).

As explained above, this is the vertex of the parabola.

You can find the x-coordinate of the vertex with the equation:

x-coordinate of the vertex = -b/(2a)

Where b and a are the coefficients of the linear term and the quadratic terms in the equation for h(x), respetively:

a = 1
b = -7

x-coordinate = - (-7) / (2 × 1) = 7/2 = 3.5

Now you can find h(x) for x = 3.5

h(3.5) = (3.5)² - 7(3.5) + 6 = 12.25 - 24.5 + 6 = - 6.25

That is 6.25 feet below the water surface.

3) At what horizontal distance from the board does the diver enter the water?

That is the x-intercept of the function. This is, the value of x when h(x) = 0.

Thus, solve the equation 0 = x² - 7x + 6.

You can factor the equation:

Find two numbers that add up -7 and their product is +6. Those are - 6 and -1:

0 = (x - 1) (x - 6)

Using the zero product property:

(x - 1) = 0 or (x - 6) = 0

x = 1 or x = 6

Thus, you have two solutions, which are the two x-intercepts of the funtion.

x = 1 represents the horizontal distance from the board where the diver enters the water.

The other solution is the answer to the next question.

4) At what horizontal distance from the board does the diver come to the surface of the water after the dive?

As explained above, the equation has two x-intercepts. They both are the points where the parabola crosses the x-axis, which is when the height, h(x) is 0. That height is the surface of the water level.

The first x-intercept is the point (horizontal distant from the board) where the diver enters the water, such as asserted above.

The other x-intercept is where the diver comes to the surface of water after the dive and after being submerged in the water: the diver enters the water, dives 6.5feet into the water, and returns to the surface.

Thus, this is the solution x = 6 for h(x) = 0.

Hence, Kendra comes to the surface of water at 6 feet from the board.

7 0

3 years ago

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Assume a mats price from the start is "X" USD. Write an expression for what the mat would cost after being reduced by P % (unkno

natka813 [3]

Answer:

Step-by-step explanation:

$cost \ price = X\\Deduction = P \%\\Deduction \ Price = P \% of X = \frac{P}{100} \times X = \frac{XP}{100} \\\\Cost \ price \ after \ deduction = X -\frac{XP}{100}$

OR SIMPLIFY FURTHER

$X - \frac{XP}{100} = X( 1 - \frac{P}{100} )$

7 0

3 years ago

A smooth curve which approximates the shape of a histogram and describes the overall pattern of a distribution is called

topjm [15]

A smooth curve which approximates the shape of a histogram and describes the overall pattern of a distribution is called density curve. A density curve is a graph that shows probability. The area under the density curve is equal to 100 percent of all probabilities and can be a skewed distribution. The right or left skew does not refer to how the graph looks but it refers to whether the data is skewed.

7 0

4 years ago