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3 years ago

A book has 150 pages, every page is numbered. how many digits are used?

Mathematics

1 answer:

IrinaK [193]3 years ago

7 0

300 digits/numbers are used.

150pages * 2(two sides to one page) = 300numbers

Hope this helps!!!

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49÷369 explain answer

Afina-wow [57]

49 divided by 369 is 0.13279133 and 369 divided by 49 is 7.53061224

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3 years ago

A bike that you really want is on sale of 15% off... If it is normally $83.99, how much would it now that it is on sale?

Mama L [17]

100%-15%=85% =.85(83.99)=$71.39

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3 years ago

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Subtract polynomials (intro)

ELEN [110]

Answer:

The result in standard form is:

$\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t$

Step-by-step explanation:

Given the polynomials

-5t+ 4t² – t

8t² + t

subtracting 8t² + t from -5t+ 4t² – t.

$\left(-5t+\:4t^2\:-\:t\right)\:-\:\left(8t^2\:+\:t\right)$

Remove parenthese: (-a) = -a

i.e. - (8t² + t) = 8t² - t

so the expression becomes

$=-5t+4t^2-t-8t^2-t$

grouping the like terms

$=4t^2-8t^2-5t-t-t$

Add similar elements: 4t² - 8t² = -4t²

$=-4t^2-5t-t-t$

Add similar elements: -5t - t - t = -7t

$=-4t^2-7t$

Therefore, the result in standard form is:

$\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t$

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3 years ago

Pound of saffron, but the ordering system wants a decimal. What

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

c. 1.04 Double check though, because i'm not exactly sure

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3 years ago

How do you solve: 81 X 9^(-2b-2)=27

Dominik [7]

Did you mean

81* 9∧(-2b-2)=27 => First divide whole equation with 81 and get

(3∧2)∧(-2b-2)=1/3 => 3∧(-4b-4)=3∧(-1) => -4b-4=-1 => -4b= -1+4 => -4b=3 =>

we will multiply whole equation with (-1) and get 4b=-3 => b=-(3/4)

If the start item is correct.

Good luck!!!

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3 years ago

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