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1 year ago

3. The circumference of a circle is 607 cm. What is the diameter of the circle?

Mathematics

1 answer:

steposvetlana [31]1 year ago

8 0

Answer:

the circumference is 30 cm,

Step-by-step explanation:

Hope it helps

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How to write 30000+300+3 in standard form

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Answer:

30303

Step-by-step explanation:

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2 years ago

Which expression will help you find the area of the triangular bases?

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The correct answer is 1/2×8×3.

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2 years ago

Surri solved the equation x ^ 2 equals 49 and found that x equals 7 what error did Suro make

denpristay [2]

It does not look like Suro even made an error. She took the square root of both sides to get x = 7, I don't see any problem here.

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2 years ago

Read 2 more answers

Point C(3.6, -0.4) divides in the ratio 3 : 2. If the coordinates of A are (-6, 5), the coordinates of point B are .

Evgen [1.6K]

QUESTION 1

The point C(3.6, -0.4) divides AB in the ratio 3 : 2.

The coordinates of A are (-6, 5).

Let the coordinates of B be $(x_2,y_2)$

We use the formula:

$x=\frac{mx_2+nx_1}{m+n}$ to determine the x-coordinate of B.

We substitute the known values to obtain:

$3.6=\frac{3x_2+2(-6)}{3+2}$

$3.6=\frac{3x_2-12)}{5}$

$3.6\times 5=3x_2-12$

$18=3x_2-12$

$18+12=3x_2$

$30=3x_2$

This implies that:

$x_2=10$

We also use the formula:

$y=\frac{my_2+ny_1}{m+n}$ to find the y-coordinate.

$-0.4=\frac{3y_2+2(5)}{3+2}$

$-0.4=\frac{3y_2+10}{5}$

$-0.4\times 5=3y_2+10$

$-2-10=3y_2$

$-12=3y_2$

$-4=y_2$

The coordinates of B are (10,-4)

QUESTION 2.

If point D divides CD in the ratio 4 : 5.

Then the coordinates of D are:

$(\frac{4(10)+5(3.6)}{4+5}, \frac{4(-4)+5(-0.4)}{4+5})$

$(\frac{58}{9}, \frac{-18}{9})$

The coordinates of D are $(\frac{58}{9}, -2)$

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3 years ago

Can you help me with this

marishachu [46]

Answer:

Step-by-step explanation:

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3 years ago