Please answer please please

Mathematics

1 answer:

zalisa [80]3 years ago

5 0

Answer: T

Step-by-step explanation: The vertex is where the two lines meet at the endpoint, meaning that the vertex is always where the lines begin to spread out.

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There are 24 boys and 16 girls on a playground. What is the ratio of boys to total number of children on the playground?

sp2606 [1]

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the awnser is 24:40 and 3:5

Step-by-step explanation:

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slavikrds [6]

a = 0.19

0.38/2 = 0.19

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The grizzly basketball team won 8 out of 10 games. If this rate continues, how many games will they win if they play a total of

Lunna [17]

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A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?

Amanda [17]

Option C

The radius of circle is 13 units

Solution:

The equation of circle is given by formula:

$(x-h)^2+(y-k)^2 = r^2$

Where, the center being at the point (h, k) and the radius being "r"

Given that circle has its center at the origin

(h, k) = (0, 0)

(5, -12) is a point on the circle

(x, y) = (5, 12)

Substituting in equation we get,

$(5-0)^2+(12-0)^2 = r^2\\\\5^2+12^2 = r^2\\\\r^2 = 5^2+12^2\\\\r^2 = 25 + 144\\\\r^2 = 169\\\\Taking\ square\ root\ on\ both\ sides\\\\r = \sqrt{169}\\\\r = \pm 13\\\\Since\ radius\ cannot\ be\ negative\ ignore\ r = -13\\\\Thus\ the\ solution\ is:\\\\ \r = 13$