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2 years ago

10

Aisha knit a total of 4 centimeters of scarf over 2 nights. After 9 nights of knitting, how many centimeters of scarf will Aisha

have knit in total

1 answer:

Luda [366]2 years ago

6 0

Answer:

22 cm

step by step explanation:

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Find the standard deviation of the data, 12, 19, 9.

jek_recluse [69]

Answer:

4.19

Step-by-step explanation:

Find the mean:

$\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}$

Find the standard deviation:

$\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19$

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2 years ago

The base is 3 and the height is 2 what is the area of the triangle

Scorpion4ik [409]

Answer:

area = 3

Step-by-step explanation:

area of a triangle = 1/2 base x height

1/2 x 3 x 2 = 1/2 x 6 = 3

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2 years ago

What is £300 divided into a ratio of 3:7

3241004551 [841]

A) sum 3 + 7 =10
b) divide <span> £</span>300 ÷ 10 = <span> £</span>30
c) multiply:
3 x 30 = <span> £</span>90
7 x 30 = <span> £</span>210

Values are: £90 and <span> £210</span>

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3 years ago

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UkoKoshka [18]

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3 years ago

3x squared - 2 x y when x=2 and y = 5

ira [324]

the Answer is 4 do order of operations

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3 years ago