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3 years ago

How do u find the circumference of a circle

Mathematics

2 answers:

tigry1 [53]3 years ago

5 0

C=3.14d this means circumference = 3.14 * half of the circumference

larisa86 [58]3 years ago

3 0

The formula is:
c= 2 (π)r

steps:
a.) you multiply 2×π (which π=3.14)
b.) so 2×π then multiply the radius ( which is half of the diameter of the circle if your equation doesn't already have the radius listed.)

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3.5 - (n + 21) - 4n = -45

igomit [66]

Answer:

$n = \frac{11}{2} = 5.500$

6 0

3 years ago

Find the measures of two supplementary angles,

kvasek [131]

Answer:

the measures of 2 supplementary angles add up to 180°

Step-by-step explanation:

hopefully this helps :)

3 0

3 years ago

Reposed cause the first one didn’t have the pictures. Need help with this <br> Thanks :)

Naily [24]

Answer:

(d) x = -3/4; y = -3 1/2

Step-by-step explanation:

You are asked for the coordinates of the point of intersection of the lines on the graph. This requires interpolation, because not all grid lines are marked, and the point is not on any grid line.

<h3>Interpolation</h3>

The idea of "interpolation" is figuring the value of a point that lies between points whose values are known. The answer choices here suggest that we are to interpolate to the nearest 1/4 unit. This requires that you mentally (or actually) divide the space between grid lines into 4 equal sections, and figure where the point lies relative to those divisions.

In the case of the x-coordinate, the first grid line left of the y-axis is not marked, but we notice it lies halfway between x=0 and x=-2. That means we can safely assume that the unmarked vertical grid line has a value of x=-1.

<h3>Application</h3>

<u>horizontal coordinate</u>

The location of the point of intersection of the two lines is horizontally closer to the -1 (unmarked) grid line than it is to the y-axis. Its x-value will be between -1 and 0. The answer choices tell us it is -3/4, consistent with it being about 3/4 of the distance toward -1 from 0.

x = -3/4

<u>vertical coordinate</u>

The location of the point of intersection of the two lines is vertically about halfway between -3 and -4. The answer choices tell us it is -3 1/2.

y = -3 1/2

6 0

2 years ago

Read 2 more answers

Jared places five cards that are labeled 1 to 5 face down on the table and mixes them up.

ankoles [38]

Answer: 2/5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Three landmarks of baseballachievement are Ty Cobb’s batting average of 0.420 in 1911,Ted Williams’s 0.406 in 1941, and George B

harina [27]

Answer:

Ted Williams has the highest standardized score, hence Williams is the best of the three

Cobb is the second highest and hence, the better player

George Brett is third

Step-by-step explanation:

Given the data:

Decade : 1910 __ 1940 ____ 1970

Mean, μ: 0.266 __0.267 ___ 0.261

S/dev, σ : 0.0371 _ 0.0326 __ 0.0317

To compute the standard unit for batting averages, we obtain the standardized score for each of Cobb,Williams, and Brett.

Standardized score (Zscore) : (x - μ) / σ

Cobb, x = 0.420

Ted Williams, x = 0.406

George Brett, x = 0.390

COBB:

Zscore = (0.420 - 0.266) / 0.0371 = 4.1509

Ted Williams :

Zscore = (0.406 - 0.267) / 0.0326 = 4.2638

George, Brett = (0.390 - 0.261) / 0.0317 = 4.0694

Ted Williams has the highest standardized score, hence Williams is the best of the three

Cobb is the second highest and hence, the better player

George Brett is third

6 0

3 years ago