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3 years ago

Is 2x and 9, and 6 and 9x equivalent to 12x +18? And why?

Mathematics

1 answer:

Gelneren [198K]3 years ago

6 0

Yessssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

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If A(3,4) and B(10,4) are the end points of a diameter of circle "O", what is the area of the circle O

ikadub [295]

Answer:

$\large\boxed{\dfrac{49\pi}{4}}$

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the endpoints of a diameter of a circle.

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

$d=\sqrt{(10-3)^2+(4-4)^2}=\sqrt{7^2+0^2}=\sqrt{7^2}=7$

Therefore we have the length of the diameter: d = 7

We know: d = 2r. Therefore

$r=\dfrac{7}{2}$

Substitute to the formula of an area:

$A=\pi\left(\dfrac{7}{2}\right)^2=\dfrac{49\pi}{4}$

There is no such answer in the answers to choose.

Apparently you have some error in the coordinates of the endpoints.

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3 years ago

How do I find angle a?

vfiekz [6]

The slope of the line is 2/3, so the angle is arctan(2/3) ≈ 33.69°.

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3 years ago

Brittney has 24 harbors.each girl needs 4 bows foe their hair. how many girls can have bows?

riadik2000 [5.3K]

Answer: 6 girls and each has 4 bows

6* 4 = 24 total

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3 years ago

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What is the product? Enter your answer as a fraction, in simplified form, in the box. 38⋅(−36)

valina [46]

If you multiply 38*(-36) you would get -1368. And to convert that into a fraction it could be -1368/1, -13680/10, etc.

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3 years ago

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Help with math plz!!!

Sphinxa [80]

Answer:

Option 4 (equilateral)

Step-by-step explanation:

This triangle is an equilateral triangle since all of its sides are equal i.e. 9 cm.

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3 years ago