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3 years ago

The diameter of a circle is two and 1/2 inches what is the length of the radius of the circle

Mathematics

1 answer:

N76 [4]3 years ago

8 0

Answer:

1.25 inches

Step-by-step explanation:

2.5 / 2 = 1.25

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Lin runs 5 miles in 40 minutes.

natima [27]

8 mins
1 mile
1 hr and 12 mins

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3 years ago

On a math test, you obtained a score of 66 points. This was 88% ofthe total number of points on the test. How many total points

Lyrx [107]

Answer:

Step-by-step explanation:

Let x be the total points

66/x = 0.88 (88%)

x = 75

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3 years ago

A circular pond has a radius of 6 feet. What is the area of that pond?

serg [7]

Answer:

radius x radius x pi = area of circle

6 x 6 = 36

36 x 3.14 = 113.04

113.04

Hope this helps

Step-by-step explanation:

6 0

4 years ago

The equation of a parabola is y=x^2-10x+27. Write the equation in vertex form

azamat

Answer:

$\large \boxed{y = (x - 5)^{2} + 2 }$

Step-by-step explanation:

y = x² - 10x + 27

y = ax² + bx + c

This is the general form of the equation for a parabola.

We must convert it to the vertex form

y = (x - h)² + k, where (h,k) are the coordinates of the vertex.

We can do this by completing the square.

$\begin{array}{rcll}y & = & x^{2} - 10x + 27 & \\y - 27 & = & x^{2} - 10x & \text{Subtracted 27 from each side}\\y - 27&= & x^{2} - 10x + 25 - 25 & \text{Added and subtracted (b/2)}^{2}\\y - 27&= & (x - 5)^{2} - 25 & \text{Wrote the first three terms as the square of a binomial}\\y& = & \mathbf{(x - 5)^{2} + 2} & \text{Added 27 to each side}\\\end{array}\\\text{The vertex form of the parabola is $\large \boxed{\mathbf{y = (x - 5)^{2} + 2 }}$}$ The figure below shows that your parabola has its vertex at (5,2).

4 0

3 years ago

A store has 7 red shirts, 15 black shirts, 13 white shirts, and 5 green shirts. Select the portion of the shirts that are black.

Natali [406]

Answer:

8/5 portion of black shirt is there

3 0

3 years ago