3 years ago

What are the factors of 9a-3

Mathematics

1 answer:

yulyashka [42]3 years ago

7 0

Answer:

9, -3

Step-by-step explanation:

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Zach has 3/4 hour to play video games. It takes him 1/12 hours to set up the system. Each round of his favorite game takes 1/6 h

tiny-mole [99]

1/12 + 1/6x = 3/4...multiply everything by common denominator of 12
1 + 2x = 9
2x = 9 - 1
2x = 8
x = 8/2
x = 4 <== he can play 4 rounds

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2 years ago

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The diagram above shows a rectangle inscribed in a circle AB=10 and AC =12 caculate the total surface area of the shaded part

erastova [34]

Answer:

$71.63 \: \: \mathrm{cm^2 }$

Step-by-step explanation:

Once we know the diameter of the circle, we can figure out the problem.

The diameter of the circle = The diagonal of the rectangle inscribed in the circle

To find the diagonal of the rectangle, we can use a formula.

$d=\sqrt{w^2 + l^2}$

The width is 10 cm and the length is 12 cm.

$d=\sqrt{10^2 + 12^2}$

$d \approx 15.62$

The diagonal of the rectangle inscribed in the circle is 15.62 cm.

The diameter of the circle is 15.62 cm.

Find the area of the whole circle.

$A=\pi r^2$

The $r$ is the radius of the circle, to find radius from diameter we can divide the value by 2.

$r = \frac{d}{2}$

$r=\frac{15.62}{2}$

$r=7.81$

Let’s find the area now.

$A=\pi (7.81)^2$

$A \approx 191.625$

Find the area of rectangle.

$A=lw$

Length × Width.

$A = 12 \times 10$

$A=120$

Subtract the area of the whole circle with the area of rectangle to find area of shaded part.

$191.625-120$

$71.625 \approx 71.63$

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2 years ago

X + 7 < 15<br> I need to know what this answer is and quick

sergij07 [2.7K]

Answer:

x<8

Step-by-step explanation:

x+7<15

x<15-7

x<8

$hope \: it \: helps$

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3 years ago

Please HELP!! I’ll mark you as brainliest

disa [49]

The correct choice is C .

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2 years ago

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A truck and a car go at the same time against each other from two cities, which are at a distance of 400 km from each other. If

ivann1987 [24]

Answer: after about 96 Minutes

Step-by-step explanation:

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2 years ago