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3 years ago

Which of the following is not proportional to 48/64?A. 6/8B. 24/32C. 3/4D. 2/3

Mathematics

1 answer:

fenix001 [56]3 years ago

8 0

Answer:

Step-by-step explanation:

Proportional values simplify to the same constant.

48/64 = 12/16 = 3/4

This means C is proportional since C is 3/4.

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BRAINLIEST!!! he dot plot shows predictions for the winning time in the 200-meter sprint. The winner finished the race in 22.2

Alenkasestr [34]

Answer: Approximately 3.15%

Explanation:

The true finishing time is 22.2 seconds. The prediction furthest from this is 22.9 seconds. This is a difference of 22.9-22.2 = 0.7 seconds. Divide this over the true time value to get (0.7)/(22.2) = 0.03153 which is approximate.

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2 years ago

Can anybody help me on this

Feliz [49]

Answer: first option

Step-by-step explanation:

The volume of a regular pyramid can be calculated with the following fromula:

$V=\frac{B*h}{3}$

Where B is the area of the base of the pyramid and h iis the height of the pyramid.

The base is a square, therefore, its area B is:

$B=side^2\\B=(2units)^2\\B=4units$

You know that the height is 3, therefore, you can substitute these values into the formula.

THerefore, the volume of the pyramid is:

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3 years ago

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lianna [129]

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3 years ago

Suppose a and b are the solutions to the quadratic equation 2x^2-3x-6=0. Find the value of (a+2)(b+2).

KonstantinChe [14]

Answer:

(a+2)(b+2) = 4

Step-by-step explanation:

We are given the following quadratic equation:

$2x^2-3x-6=0$

Let a a and b be the solution of the given quadratic equation.

Solving the equation:

$2x^2-3x-6=0\\\text{Using the quadratic formula}\\\\x = \dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\text{Comparing the equation to }ax^2 + bx + c = 0\\\text{We have}\\a = 2\\b = -3\\c = -6\\x = \dfrac{3\pm \sqrt{9-4(2)(-6)}}{4} = \dfrac{3\pm \sqrt{57}}{4}\\\\a = \dfrac{3+\sqrt{57}}{4}, b = \dfrac{3-\sqrt{57}}{4}$

We have to find the value of (a+2)(b+2).

Putting the values:

$(a+2)(b+2)\\\\=\bigg(\dfrac{3+\sqrt{57}}{4}+2\bigg)\bigg(\dfrac{3-\sqrt{57}}{4}+2\bigg)\\\\=\bigg(\dfrac{11+\sqrt{57}}{4}\bigg)\bigg(\dfrac{11-\sqrt{57}}{4}\bigg)\\\\=\dfrac{121-57}{156} = \dfrac{64}{16} = 4$

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Rasek [7]

Answer:

Step-by-step explanation:

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2 years ago

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Which of the following is not proportional to 48/64?​A. 6/8B. 24/32C. 3/4D. 2/3

Which of the following is not proportional to 48/64?A. 6/8B. 24/32C. 3/4D. 2/3