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avanturin [10]
3 years ago
7

A tortoise is walking in the desert. It walks at a speed of

Mathematics
1 answer:
NARA [144]3 years ago
7 0
Hope this helps you!

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Convert 5.764764764 … to a rational expression in the form of a over b, where b ≠ 0
zubka84 [21]
I just learned a short time ago how to convert a repeating decimal to a fraction.

-- Take the repeating part of the decimal.  In this one, it's '764' .

-- Make a fraction out of it by writing it over the same number of 9s.

       The fraction here is        764/999 .

-- Simplify it if possible and if you feel like it.

         764/999 can't be simplified.  (I think.)

So the rational expressions for this decimal are

           (5 and 764/999)     or     5759/999   .
3 0
3 years ago
A chord is 10cm from the centre of a circle of radius 15cm. Find the length of the chord.
almond37 [142]

Answer: 21.44 cm

Step-by-step explanation:

Given

Radius r=15 cm

distance of chord from the center is 10 cm

From the figure, the length of the chord is AC

Applying Pythagoras

\Rightarrow AO^2=OB^2+AB^2\\\Rightarrow AB^2=15^2-10^2\\\Rightarrow AB^2=225-100=115\\\Rightarrow AB=\sqrt{115}=10.72\ cm

The length of the chord is AC=2AB=21.44\ cm

5 0
3 years ago
The systolic blood pressures of women aged 18 to 24 are normally distributed with a mean of 115.3 and a standard deviation of 13
Ghella [55]

Answer:

fac.k nou ok your mather xd

Step-by-step explanation:

6 0
3 years ago
3/4 times the amount of 20
klio [65]

Answer:

= { \rm{ \frac{3}{4}  \times 20}} \\  \\  = { \rm{ \frac{60}{4} }} \\  \\  = { \boxed{ \tt{ \:  \: 15 \:  \: }}}

8 0
2 years ago
Read 2 more answers
What is the area of this composite figure, in square centimeters?<br> 176<br> 209<br> 242<br> 264
e-lub [12.9K]

Answer:

209

Step-by-step explanation:

We can divide the figure into 2 parts to make this easier.

11x16=176 so the square is 176 square cm.

(11x6)/2 = 66/2 = 33 so the triangle is 33 square cm.

176+33 = 209 sq cm.

3 0
3 years ago
Read 2 more answers
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