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3 years ago

1 square kilometre equals to 100000000000 square centimetres Express it in scientific notation

Mathematics

1 answer:

umka21 [38]3 years ago

8 0

Answer:

1Km^2 = 100000000000 cm^2

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This is Hard for me!

max2010maxim [7]

DIFFERENTIATION
6+f(28+b(4)=6+112f+4bf
b=6+112f/-4f
b=1*6^0+1*112f^0/1*-4f^0
b=1+1/1
b=2

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2 years ago

3+7+11+15+19+23+27 1.t1= s1= express t1 in terms of s1

icang [17]

So it would be 3s + 7s + 11s + 15s + 19s + 23s + 27s. Hope this helps

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2 years ago

Which number is prime? 85 49 70 31

Citrus2011 [14]

Answer: 31 is a prime number because only 1 times itself equals 31. no other two factors equal 31 as a product.

Step-by-step explanation:

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2 years ago

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7. A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The T

Anit [1.1K]

Answer:

Modification has not reduced the number of accidents.

Step-by-step explanation:

$H_0: \mu\geq0\\H_a:\mu$

A B C D E F G H

Before modification 5 7 6 4 8 9 8 10

After modification 3 7 7 0 4 6 8 2

Difference -2 0 1 -4 -4 -3 0 -8

Mean of differences $M_d = \frac{sum}{8}=\frac{2+0-1+4+4+3-0+8}{8}=2.5$

Standard deviation of differences = $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}=2.9277$

Formula of paired t test :

$t=\frac{M_d}{\frac{s}{\sqrt{n}}}\\t=\frac{2.5}{\frac{2.9277}{\sqrt{8}}}\\t = 2.4152$

Df = n-1 = 8-1 =7

$t critical = t_{(df, \alpha)}=t_{7,0.01}=2.998$

t critical> t calculated

So, We failed to reject null hypothesis

Hence modification has not reduced the number of accidents.

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2 years ago

What is a number written to the thousandths place that would relate to 417.91 using the = symbol?

baherus [9]

Answer:

0.41791

Step-by-step explanation:

let x be the number written to the thousandth place then,

x times thousands = 417.91

or, x = 417.91/1000

therefore, x = 0.41791

and so

0.41791 thousand = 417.91

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2 years ago

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1 square kilometre equals to 100000000000 square centimetres Express it in scientific notation​

1 square kilometre equals to 100000000000 square centimetres Express it in scientific notation