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3 years ago

How do you know if an equation represents a proportional relationship?

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

8 0

If it creates a straight line on a graph, it is proportional

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Answer:

Step-by-step explanation:

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3 years ago

ABCD is a Rhombus with side length 10 cm. Angle ADC = 40. DAC is a sector of a circle with center D. BAC is a sector of a circle

Natasha_Volkova [10]

The value of the <em>shaded</em> area is approximately 34.907 square centimeters.

<h3>How to calculate the area between a rhombus and a circle</h3>

According to the description in statement we prepared a representation of the figure in the image attached below. The <em>shaded</em> area is equal to the area of the <em>circle</em> sector ( $A$ ), in square centimeters:

$A = \frac{\theta\cdot \pi \cdot R^{2}}{360}$ (1)

Where:

$R$ - Length of the radius, in centimeters.
$\theta$ - Angle of circle arc, in degrees.

If we know that $\theta = 40^{\circ}$ and $R = 10\,cm$ , then the area of the circle is:

$A = \frac{(40)\cdot \pi\cdot (10\,cm)^{2}}{360}$

$A\approx 34.907\,cm^{2}$

The value of the <em>shaded</em> area is approximately 34.907 square centimeters. $\blacksquare$

To learn more on areas, we kindly invite to check this verified question: brainly.com/question/16151549

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2 years ago

Can the following expressions be written in a simpler forms? If yes, write an expression for each problem. If not, explain why w

Alona [7]

Answer:

Both of them can be simplified.

Recall that 4 = 2^2.

2^7 / 4^2 = 2^7 / (2^2)^2 = 2^7 / 2^4 = 2^(7-4) = 2^3 = 8

Similarly, 2^7 / 2^4 = 2^(7-4) = 2^3 = 8

The answers to both exercises are 8.

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3 years ago

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vladimir2022 [97]

50-38=12
38+12=50
The answer is 12

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