2 years ago

Hurry and answer marking people brainliest the first 3 people

Mathematics

1 answer:

kherson [118]2 years ago

4 0

Answer:

Step-by-step explanation:

the formula for a circle which would be C = 2 \pi r

The 9.5*3.14 divide by two so 14.915

and this rounded would be 15.0 or 14.9 not too sure just pick whatever

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Luden [163]

Y2-y1 over x2-x1 or you can go onto the calculator and push list and put in the points and it will give you the answer of 68

7 0

3 years ago

- Last week Shelley earned $60.00 in tips waitressing. This week she earned $72.00.

castortr0y [4]

Answer: 20%

Step-by-step explanation:

Rule of 3, let's put the money on the left and the percentage on the right of the chart.

$\frac{60.00}{72.00}=\frac{100}{x}$

$x=\frac{72*100}{60} \\x=120$

Calculate the difference.

$120-100=20$

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3 years ago

Read 2 more answers

Subtract (4x^2 + x + 8) - (2x^2 + 3x - 1)

Ludmilka [50]

Answer:

2x^2-2x+9

Step-by-step explanation:

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3 years ago

A large restaurant chain is curious what proportion of their customers in a given day are new customers. They are thinking of ta

Ira Lisetskai [31]

Answer:

none of the above

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2 years ago

Find an equation of the circle that satisfies the given conditions. (Give your answer in terms of x and y.)

masya89 [10]

Answer:

$(x-4)^2+(y+5)^2=90$

Step-by-step explanation:

The equation of a circle of radius r, centered at the point (a,b) is

$(x-a)^2+(y-b)^2=r^2$

We already know the center is at $(4,-5)$ , we are just missing the radius. To find the radius, we can use the fact that the circle passes through the point (7,4), and so the radius is just the distance from the center to this point (see attached image). So we find the distance by using distance formula between the points (7,4) and (4,-5):

radius $=\sqrt{(7-4)^2+(4-(-5))^2}=\sqrt{3^2+9^2}=\sqrt{90}$

And now that we know the radius, we can write the equation of the circle:

$(x-4)^2+(y-(-5))^2=\sqrt{90}^2$

$(x-4)^2+(y+5)^2=90$

5 0

2 years ago