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3 years ago

10

Write each of the following percents in words. a. 5% b.34% c.143% b. 500%

1 answer:

luda_lava [24]3 years ago

4 0

Five percent, thirtyfour percent, onehundred and fourty three percent, and fivehundred percent. No explanation needed

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The diameter of a circle is 13 cm. What is the radius of the circle?

nikklg [1K]

Answer:

The Radius is 6.5 cm.

Step-by-step explanation:

We know that the diameter of a circle is a line that begins on one point of a circle and ends on the opposite side. We also know that the radius is a point on the circle that starts from that point and ends at the center. Therefore, the radius would be half the diameter.

$13/2 = 6.5$

Hope this helped :D!

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2 years ago

What is the image of the point (6,-1) after a rotation of 270 counterclockwise about the origin

Sav [38]

Answer:

(- 1, - 6 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 270°

a point (x, y ) → (y, - x ), thus

(6, - 1 ) → (- 1, - 6 )

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2 years ago

What is the median from the following set of data:1,2,3,3,3,8,8,11,15?

raketka [301]

Answer:

3

Step-by-step explanation:

The median is the # in the middle, and since 3 is used 3 times, it´s the most used # and is in the middle

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2 years ago

Read 2 more answers

A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean isx⎯ ⎯ x¯ = 840 and

gayaneshka [121]

Answer:

$(832.156, \ 847.844)$

Step-by-step explanation:

Given data :

Sample standard deviation, s = 15

Sample mean, $\overline x = 840$

n = 23

a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}$

$t_{(n-1 , \alpha/2)} \frac{s}{\sqrt n}$

$t_{(n-1, a\pha/2)}=t_{(22,0.01)} = 2.508$

∴ $E = 2.508 \times \frac{15}{\sqrt{23}}$

$E = 7.844$

So, 98% CI is

$(\overline x - E, \overline x + E)$

$(840-7.844 , \ 840+7.844)$

$(832.156, \ 847.844)$

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2 years ago

Can someone please help with question 3? I'll mark Brainliest.

Citrus2011 [14]

Answer:

sorry but i don't know this i'm really sorry

Step-by-step explanation:

7 0

3 years ago